Dépouillements

A survey on cascaded multilevel inverters / Malinowski, Mariusz in IEEE transactions on industrial electronics, Vol. 57 N° 7 (Juillet 2010) 

Public ISBD [article]  in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2197 - 2206 Titre : A survey on cascaded multilevel inverters Type de document : texte imprimé Auteurs : Malinowski, Mariusz, Auteur ; Gopakumar, K., Auteur ; Rodriguez, José, Auteur Article en page(s) : pp. 2197 - 2206 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Cascaded  inverters  Modulation  and  control  Multievel  converters Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : Cascaded multilevel inverters synthesize a medium-voltage output based on a series connection of power cells which use standard low-voltage component configurations. This characteristic allows one to achieve high-quality output voltages and input currents and also outstanding availability due to their intrinsic component redundancy. Due to these features, the cascaded multilevel inverter has been recognized as an important alternative in the medium-voltage inverter market. This paper presents a survey of different topologies, control strategies and modulation techniques used by these inverters. Regenerative and advanced topologies are also discussed. Applications where the mentioned features play a key role are shown. Finally, future developments are addressed. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5226574 [article] A survey on cascaded multilevel inverters [texte imprimé] / Malinowski, Mariusz, Auteur ; Gopakumar, K., Auteur ; Rodriguez, José, Auteur . - pp. 2197 - 2206. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2197 - 2206 Mots-clés : Cascaded  inverters  Modulation  and  control  Multievel  converters Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : Cascaded multilevel inverters synthesize a medium-voltage output based on a series connection of power cells which use standard low-voltage component configurations. This characteristic allows one to achieve high-quality output voltages and input currents and also outstanding availability due to their intrinsic component redundancy. Due to these features, the cascaded multilevel inverter has been recognized as an important alternative in the medium-voltage inverter market. This paper presents a survey of different topologies, control strategies and modulation techniques used by these inverters. Regenerative and advanced topologies are also discussed. Applications where the mentioned features play a key role are shown. Finally, future developments are addressed. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5226574

Survey on fault operation on multilevel inverters / Pablo Lezana in IEEE transactions on industrial electronics, Vol. 57 N° 7 (Juillet 2010) 

Public ISBD [article]  in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2207 - 2218 Titre : Survey on fault operation on multilevel inverters Type de document : texte imprimé Auteurs : Pablo Lezana, Auteur ; Pou, Josep, Auteur ; Thierry A. Meynard, Auteur Article en page(s) : pp. 2207 - 2218 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Fault  diagnosis  Fault  tolerance  Multilevel  (ML)  converters Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper is related to faults that can appear in multilevel (ML) inverters, which have a high number of components. This is a subject of increasing importance in high-power inverters. First, methods to identify a fault are classified and briefly described for each topology. In addition, a number of strategies and hardware modifications that allow for operation in faulty conditions are also presented. As a result of the analyzed works, it can be concluded that ML inverters can significantly increase their availability and are able to operate even with some faulty components. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5256213 [article] Survey on fault operation on multilevel inverters [texte imprimé] / Pablo Lezana, Auteur ; Pou, Josep, Auteur ; Thierry A. Meynard, Auteur . - pp. 2207 - 2218. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2207 - 2218 Mots-clés : Fault  diagnosis  Fault  tolerance  Multilevel  (ML)  converters Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper is related to faults that can appear in multilevel (ML) inverters, which have a high number of components. This is a subject of increasing importance in high-power inverters. First, methods to identify a fault are classified and briefly described for each topology. In addition, a number of strategies and hardware modifications that allow for operation in faulty conditions are also presented. As a result of the analyzed works, it can be concluded that ML inverters can significantly increase their availability and are able to operate even with some faulty components. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5256213

A survey on neutral-point-clamped inverters / Rodriguez, José in IEEE transactions on industrial electronics, Vol. 57 N° 7 (Juillet 2010) 

Public ISBD [article]  in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2219 - 2230 Titre : A survey on neutral-point-clamped inverters Type de document : texte imprimé Auteurs : Rodriguez, José, Auteur ; Bernet, Steffen, Auteur ; Steimer, Peter K., Auteur Article en page(s) : pp. 2219 - 2230 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Neural-point-clamped  (NPC)  inverters Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : Neutral-point-clamped (NPC) inverters are the most widely used topology of multilevel inverters in high-power applications (several megawatts). This paper presents in a very simple way the basic operation and the most used modulation and control techniques developed to date. Special attention is paid to the loss distribution in semiconductors, and an active NPC inverter is presented to overcome this problem. This paper discusses the main fields of application and presents some technological problems such as capacitor balance and losses. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5256191 [article] A survey on neutral-point-clamped inverters [texte imprimé] / Rodriguez, José, Auteur ; Bernet, Steffen, Auteur ; Steimer, Peter K., Auteur . - pp. 2219 - 2230. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2219 - 2230 Mots-clés : Neural-point-clamped  (NPC)  inverters Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : Neutral-point-clamped (NPC) inverters are the most widely used topology of multilevel inverters in high-power applications (several megawatts). This paper presents in a very simple way the basic operation and the most used modulation and control techniques developed to date. Special attention is paid to the loss distribution in semiconductors, and an active NPC inverter is presented to overcome this problem. This paper discusses the main fields of application and presents some technological problems such as capacitor balance and losses. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5256191

Modeling and DBC-PSC-PWM control of a three-phase flying-capacitor stacked multilevel voltage source inverter / Ben Smida, Moncef in IEEE transactions on industrial electronics, Vol. 57 N° 7 (Juillet 2010) 

Public ISBD [article]  in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2231 - 2239 Titre : Modeling and DBC-PSC-PWM control of a three-phase flying-capacitor stacked multilevel voltage source inverter Type de document : texte imprimé Auteurs : Ben Smida, Moncef, Auteur ; Ben Ammar, Faouzi, Auteur Article en page(s) : pp. 2231 - 2239 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Multicarrier  modulation  Multilevel  inverter  Stacked  multicell  converter  (SMC)  n  x  m  State  machine Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : In this paper, the authors propose a mathematical model for a new topology called "stacked multicell converter" (SMC). Each phase of the SMC n × m multilevel inverter is formed by a stack of m flying-capacitor multilevel inverters, and each stack or stage is realized by connecting in series n controllable commutation cells. An original multicarrier subharmonic pulsewidth modulation (PWM), called disposition band carrier and phase-shifted carrier PWM (DBC-PSC-PWM), method is developed to produce (n × m + 1) output voltage levels and to improve the output voltage harmonic spectrum with a wide output frequency range. A diagram state machine is then used to decode the DBC-PSC-PWM modulator and distribute the commutations evenly to each inverter cell in a cyclical fashion. To carry out, in practice, the SMC n × m modulation technique, the implementation of the modulation control strategy has been done in a field-programmable gate array circuit XC4010E+ of XILINX to control a three-phase SMC 3 × 2 seven-level inverter, and the experimental results are carried out to confirm the high performance of this inverter. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5226560 [article] Modeling and DBC-PSC-PWM control of a three-phase flying-capacitor stacked multilevel voltage source inverter [texte imprimé] / Ben Smida, Moncef, Auteur ; Ben Ammar, Faouzi, Auteur . - pp. 2231 - 2239. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2231 - 2239 Mots-clés : Multicarrier  modulation  Multilevel  inverter  Stacked  multicell  converter  (SMC)  n  x  m  State  machine Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : In this paper, the authors propose a mathematical model for a new topology called "stacked multicell converter" (SMC). Each phase of the SMC n × m multilevel inverter is formed by a stack of m flying-capacitor multilevel inverters, and each stack or stage is realized by connecting in series n controllable commutation cells. An original multicarrier subharmonic pulsewidth modulation (PWM), called disposition band carrier and phase-shifted carrier PWM (DBC-PSC-PWM), method is developed to produce (n × m + 1) output voltage levels and to improve the output voltage harmonic spectrum with a wide output frequency range. A diagram state machine is then used to decode the DBC-PSC-PWM modulator and distribute the commutations evenly to each inverter cell in a cyclical fashion. To carry out, in practice, the SMC n × m modulation technique, the implementation of the modulation control strategy has been done in a field-programmable gate array circuit XC4010E+ of XILINX to control a three-phase SMC 3 × 2 seven-level inverter, and the experimental results are carried out to confirm the high performance of this inverter. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5226560

Direct control strategy for a four-level three-phase flying-capacitor inverter / Defay, François in IEEE transactions on industrial electronics, Vol. 57 N° 7 (Juillet 2010) 

Public ISBD [article]  in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2240 - 2248 Titre : Direct control strategy for a four-level three-phase flying-capacitor inverter Type de document : texte imprimé Auteurs : Defay, François, Auteur ; Llor, Ana-Maria, Auteur ; Fadel, Maurice, Auteur Article en page(s) : pp. 2240 - 2248 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Active  power  filter  Direct  control  Flying-capacitor  (FC)  inverter Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : A direct predictive control strategy is proposed for a three-phase four-level flying-capacitor (FC) inverter in this paper. The balancing of the FC voltages, a challenge in applications with small capacitors and low switching frequencies, is done without any modulation, simply using tables calculated offline. These allow the realization of fast-dynamics output currents with reduced dv/dt in the output voltages and reduced switching frequencies. Moreover, no interharmonics are created when operating at low switching frequencies and with reference currents containing multiple harmonic components, which is a key feature for active power filters. Simulations and experimental results are presented to demonstrate the excellent performance of the direct control strategy in comparison with a conventional pulsewidth-modulation control technique, mostly for operation at low switching frequencies. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5409547 [article] Direct control strategy for a four-level three-phase flying-capacitor inverter [texte imprimé] / Defay, François, Auteur ; Llor, Ana-Maria, Auteur ; Fadel, Maurice, Auteur . - pp. 2240 - 2248. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2240 - 2248 Mots-clés : Active  power  filter  Direct  control  Flying-capacitor  (FC)  inverter Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : A direct predictive control strategy is proposed for a three-phase four-level flying-capacitor (FC) inverter in this paper. The balancing of the FC voltages, a challenge in applications with small capacitors and low switching frequencies, is done without any modulation, simply using tables calculated offline. These allow the realization of fast-dynamics output currents with reduced dv/dt in the output voltages and reduced switching frequencies. Moreover, no interharmonics are created when operating at low switching frequencies and with reference currents containing multiple harmonic components, which is a key feature for active power filters. Simulations and experimental results are presented to demonstrate the excellent performance of the direct control strategy in comparison with a conventional pulsewidth-modulation control technique, mostly for operation at low switching frequencies. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5409547

Flying-capacitor-based chopper circuit for DC capacitor voltage balancing in diode-clamped multilevel inverter / Shukla, Anshuman in IEEE transactions on industrial electronics, Vol. 57 N° 7 (Juillet 2010) 

Public ISBD [article]  in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2249 - 2261 Titre : Flying-capacitor-based chopper circuit for DC capacitor voltage balancing in diode-clamped multilevel inverter Type de document : texte imprimé Auteurs : Shukla, Anshuman, Auteur ; Ghosh, Arindam, Auteur ; Joshi, Avinash, Auteur Article en page(s) : pp. 2249 - 2261 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Chopper  Diode-clamped  multilevel  inverter  (DCMLI)  Flying  capacitor  Four-level  Multilevel  Three-level Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper proposes a flying-capacitor-based chopper circuit for dc capacitor voltage equalization in diode-clamped multilevel inverters. Its important features are reduced voltage stress across the chopper switches, possible reduction in the chopper switching frequency, improved reliability, and ride-through capability enhancement. This topology is analyzed using three- and four-level flying-capacitor-based chopper circuit configurations. These configurations are different in capacitor and semiconductor device count and correspondingly reduce the device voltage stresses by half and one-third, respectively. The detailed working principles and control schemes for these circuits are presented. It is shown that, by preferentially selecting the available chopper switch states, the dc-link capacitor voltages can be efficiently equalized in addition to having tightly regulated flying-capacitor voltages around their references. The various operating modes of the chopper are described along with their preferential selection logic to achieve the desired performances. The performance of the proposed chopper and corresponding control schemes are confirmed through both simulation and experimental investigations. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5210147 [article] Flying-capacitor-based chopper circuit for DC capacitor voltage balancing in diode-clamped multilevel inverter [texte imprimé] / Shukla, Anshuman, Auteur ; Ghosh, Arindam, Auteur ; Joshi, Avinash, Auteur . - pp. 2249 - 2261. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2249 - 2261 Mots-clés : Chopper  Diode-clamped  multilevel  inverter  (DCMLI)  Flying  capacitor  Four-level  Multilevel  Three-level Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper proposes a flying-capacitor-based chopper circuit for dc capacitor voltage equalization in diode-clamped multilevel inverters. Its important features are reduced voltage stress across the chopper switches, possible reduction in the chopper switching frequency, improved reliability, and ride-through capability enhancement. This topology is analyzed using three- and four-level flying-capacitor-based chopper circuit configurations. These configurations are different in capacitor and semiconductor device count and correspondingly reduce the device voltage stresses by half and one-third, respectively. The detailed working principles and control schemes for these circuits are presented. It is shown that, by preferentially selecting the available chopper switch states, the dc-link capacitor voltages can be efficiently equalized in addition to having tightly regulated flying-capacitor voltages around their references. The various operating modes of the chopper are described along with their preferential selection logic to achieve the desired performances. The performance of the proposed chopper and corresponding control schemes are confirmed through both simulation and experimental investigations. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5210147

Analysis and calculation of zero-sequence voltage considering neutral-point potential balancing in three-level NPC converters / Wang, Chenchen in IEEE transactions on industrial electronics, Vol. 57 N° 7 (Juillet 2010) 

Public ISBD [article]  in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2262 - 2271 Titre : Analysis and calculation of zero-sequence voltage considering neutral-point potential balancing in three-level NPC converters Type de document : texte imprimé Auteurs : Wang, Chenchen, Auteur ; Li, Yongdong, Auteur Article en page(s) : pp. 2262 - 2271 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Balancing  algorithm  Neural  point  clamped  (NPC)  Neural-point  (NP)  potential  Zero-sequence  voltage Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : The neutral-point (NP) potential of the three-level neutral-point-clamped converters is needed to maintain balancing. Zero-sequence voltage is the only freedom degree when carrier-based pulsewidth modulation is utilized. Appropriate zero-sequence voltage should be identified to control the NP potential. The relationship between the neutral current and injected zero-sequence voltage is studied comprehensively, and two balancing algorithms of NP potential, respectively adopting searching-optimization and interpolation methods, are presented. The theoretical optimum zero-sequence voltage for controlling NP potential can be obtained by the latter proposed algorithm. Simulation and experimental results are shown to verify the validity and practicability of the proposed algorithms. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5067319 [article] Analysis and calculation of zero-sequence voltage considering neutral-point potential balancing in three-level NPC converters [texte imprimé] / Wang, Chenchen, Auteur ; Li, Yongdong, Auteur . - pp. 2262 - 2271. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2262 - 2271 Mots-clés : Balancing  algorithm  Neural  point  clamped  (NPC)  Neural-point  (NP)  potential  Zero-sequence  voltage Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : The neutral-point (NP) potential of the three-level neutral-point-clamped converters is needed to maintain balancing. Zero-sequence voltage is the only freedom degree when carrier-based pulsewidth modulation is utilized. Appropriate zero-sequence voltage should be identified to control the NP potential. The relationship between the neutral current and injected zero-sequence voltage is studied comprehensively, and two balancing algorithms of NP potential, respectively adopting searching-optimization and interpolation methods, are presented. The theoretical optimum zero-sequence voltage for controlling NP potential can be obtained by the latter proposed algorithm. Simulation and experimental results are shown to verify the validity and practicability of the proposed algorithms. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5067319

New active stacked NPC multilevel converter: operation and features / Floricau, Dan in IEEE transactions on industrial electronics, Vol. 57 N° 7 (Juillet 2010) 

Public ISBD [article]  in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2272 - 2278 Titre : New active stacked NPC multilevel converter: operation and features Type de document : texte imprimé Auteurs : Floricau, Dan, Auteur ; Guillaume Gateau, Auteur ; Leredde, Alexandre, Auteur Article en page(s) : pp. 2272 - 2278 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Haigh-power  applications  Medium  voltage  Modulation  Multilevel  converters  Voltage-source  converter  (VSC) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : In this paper, the operation and the features of a new three-level converter are presented. The proposed topology was named three-level active-stacked neutral point clamped (3L-ASNPC). It is a derivative of the 3L-SNPC structure, having two additional active switches connected antiparallel with the clamp diodes. The main advantage of 3L-ASNPC converter is the reduction of the average switching frequency for all power devices. In the same time, the apparent switching frequency of the output voltage is doubled. Experimental and simulation results are shown in order to validate the proposed structure and the analysis of the switching states. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5280257 [article] New active stacked NPC multilevel converter: operation and features [texte imprimé] / Floricau, Dan, Auteur ; Guillaume Gateau, Auteur ; Leredde, Alexandre, Auteur . - pp. 2272 - 2278. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2272 - 2278 Mots-clés : Haigh-power  applications  Medium  voltage  Modulation  Multilevel  converters  Voltage-source  converter  (VSC) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : In this paper, the operation and the features of a new three-level converter are presented. The proposed topology was named three-level active-stacked neutral point clamped (3L-ASNPC). It is a derivative of the 3L-SNPC structure, having two additional active switches connected antiparallel with the clamp diodes. The main advantage of 3L-ASNPC converter is the reduction of the average switching frequency for all power devices. In the same time, the apparent switching frequency of the output voltage is doubled. Experimental and simulation results are shown in order to validate the proposed structure and the analysis of the switching states. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5280257

The common cross-connected stage for the 5L ANPC medium voltage multilevel inverter / Chaudhuri, Toufann in IEEE transactions on industrial electronics, Vol. 57 N° 7 (Juillet 2010) 

Public ISBD [article]  in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2279 - 2286 Titre : The common cross-connected stage for the 5L ANPC medium voltage multilevel inverter Type de document : texte imprimé Auteurs : Chaudhuri, Toufann, Auteur ; Rufer, Alfred, Auteur ; Steimer, Peter K., Auteur Article en page(s) : pp. 2279 - 2286 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Cross  connected  Multilevel  Phase  capacitors  Voltage  source  inverter Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : Rising interest in multilevel applications has triggered new research activities. This paper proposes a novel multilevel power electronics building block (PEBB) for the five-level active neutral point clamped (ANPC) multilevel voltage source inverter. The PEBB is composed of six switches in a crossed configuration and one capacitor. It is common to the three phases of a five-level ANPC topology, enabling a large number of levels to be generated. This PEBB is meant to be a reliable upgrade to the 5L topology, increasing output signal quality and reducing the size of the output filter in medium voltage applications. The number of levels generated by the common cross-connected stage (C3S) PEBB and the ANPC depends on the voltage ratios chosen between the phase capacitors of the ANPC and the PEBB capacitor(s). The tradeoff stands between the ability to balance the capacitors, the rated blocking voltage of the devices, and the number of levels produced. Under a given configuration, nine levels can be produced, with the possibility to balance the capacitors up to modulation indexes in the region of m = 0.92. The analysis of the general topology, the description of the nine-level case, and simulation results are first presented. Prototyping results are then shown, and they validate the introduced concept and topology. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5282566 [article] The common cross-connected stage for the 5L ANPC medium voltage multilevel inverter [texte imprimé] / Chaudhuri, Toufann, Auteur ; Rufer, Alfred, Auteur ; Steimer, Peter K., Auteur . - pp. 2279 - 2286. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2279 - 2286 Mots-clés : Cross  connected  Multilevel  Phase  capacitors  Voltage  source  inverter Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : Rising interest in multilevel applications has triggered new research activities. This paper proposes a novel multilevel power electronics building block (PEBB) for the five-level active neutral point clamped (ANPC) multilevel voltage source inverter. The PEBB is composed of six switches in a crossed configuration and one capacitor. It is common to the three phases of a five-level ANPC topology, enabling a large number of levels to be generated. This PEBB is meant to be a reliable upgrade to the 5L topology, increasing output signal quality and reducing the size of the output filter in medium voltage applications. The number of levels generated by the common cross-connected stage (C3S) PEBB and the ANPC depends on the voltage ratios chosen between the phase capacitors of the ANPC and the PEBB capacitor(s). The tradeoff stands between the ability to balance the capacitors, the rated blocking voltage of the devices, and the number of levels produced. Under a given configuration, nine levels can be produced, with the possibility to balance the capacitors up to modulation indexes in the region of m = 0.92. The analysis of the general topology, the description of the nine-level case, and simulation results are first presented. Prototyping results are then shown, and they validate the introduced concept and topology. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5282566

Analysis of the power balance in the cells of a multilevel cascaded H-bridge converter / Vazquez, Sergio in IEEE transactions on industrial electronics, Vol. 57 N° 7 (Juillet 2010) 

Public ISBD [article]  in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2287 - 2296 Titre : Analysis of the power balance in the cells of a multilevel cascaded H-bridge converter Type de document : texte imprimé Auteurs : Vazquez, Sergio, Auteur ; Leon, José I., Auteur ; Carrasco, Juan Manuel, Auteur Article en page(s) : pp. 2287 - 2296 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Cascaded  converters  Multilevel  systems Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : Multilevel cascaded H-bridge (CHB) converters have been presented as a good solution for high-power applications. In this way, several control and modulation techniques have been proposed for this power converter topology. In this paper, the steady-state power balance in the cells of a single-phase two-cell CHB is studied. The capability to be supplied with active power from the grid or to deliver active power to the grid in each cell is analyzed according to the dc-link voltages and the desired ac output voltage value. The limits of the maximum and minimum input active powers for a stable operation of the CHB are addressed. Simulation results are shown to validate the presented analysis. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5290141 [article] Analysis of the power balance in the cells of a multilevel cascaded H-bridge converter [texte imprimé] / Vazquez, Sergio, Auteur ; Leon, José I., Auteur ; Carrasco, Juan Manuel, Auteur . - pp. 2287 - 2296. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2287 - 2296 Mots-clés : Cascaded  converters  Multilevel  systems Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : Multilevel cascaded H-bridge (CHB) converters have been presented as a good solution for high-power applications. In this way, several control and modulation techniques have been proposed for this power converter topology. In this paper, the steady-state power balance in the cells of a single-phase two-cell CHB is studied. The capability to be supplied with active power from the grid or to deliver active power to the grid in each cell is analyzed according to the dc-link voltages and the desired ac output voltage value. The limits of the maximum and minimum input active powers for a stable operation of the CHB are addressed. Simulation results are shown to validate the presented analysis. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5290141

Comparison of neutral-point-clamped, symmetrical, and hybrid asymmetrical multilevel inverters / Zambra, Diorge A. B. in IEEE transactions on industrial electronics, Vol. 57 N° 7 (Juillet 2010) 

Public ISBD [article]  in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2297 - 2306 Titre : Comparison of neutral-point-clamped, symmetrical, and hybrid asymmetrical multilevel inverters Type de document : texte imprimé Auteurs : Zambra, Diorge A. B., Auteur ; Rech, Cassiano, Auteur ; Pinheiro, José Renes, Auteur Article en page(s) : pp. 2297 - 2306 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Induction-motor  drives  Inverters  Multilevel  systems  Variable-speed  drives Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper presents a comparison of three topologies of multilevel inverters applied to drive an induction motor of 500 kVA/4.16 kV rating. The multilevel inverters analyzed are the following: a neutral-point-clamped inverter, a symmetrical cascaded multilevel inverter, and a hybrid asymmetrical cascaded multilevel inverter. The performance indexes used in the comparison are total harmonic distortion, first-order distortion factor, second-order distortion factor, common-mode voltage, semiconductor power loss distribution, and heat-sink volume. The multilevel inverters are designed to present 99% efficiency at the nominal operating point, and the aforementioned performance indexes are compared for distinct values of amplitude modulation depth. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5409581 [article] Comparison of neutral-point-clamped, symmetrical, and hybrid asymmetrical multilevel inverters [texte imprimé] / Zambra, Diorge A. B., Auteur ; Rech, Cassiano, Auteur ; Pinheiro, José Renes, Auteur . - pp. 2297 - 2306. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2297 - 2306 Mots-clés : Induction-motor  drives  Inverters  Multilevel  systems  Variable-speed  drives Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper presents a comparison of three topologies of multilevel inverters applied to drive an induction motor of 500 kVA/4.16 kV rating. The multilevel inverters analyzed are the following: a neutral-point-clamped inverter, a symmetrical cascaded multilevel inverter, and a hybrid asymmetrical cascaded multilevel inverter. The performance indexes used in the comparison are total harmonic distortion, first-order distortion factor, second-order distortion factor, common-mode voltage, semiconductor power loss distribution, and heat-sink volume. The multilevel inverters are designed to present 99% efficiency at the nominal operating point, and the aforementioned performance indexes are compared for distinct values of amplitude modulation depth. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5409581

Symmetrical hybrid multilevel DC–AC converters with reduced number of insulated DC supplies / Ruiz-Caballero, Domingo A. in IEEE transactions on industrial electronics, Vol. 57 N° 7 (Juillet 2010) 

Public ISBD [article]  in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2307 - 2314 Titre : Symmetrical hybrid multilevel DC–AC converters with reduced number of insulated DC supplies Type de document : texte imprimé Auteurs : Ruiz-Caballero, Domingo A., Auteur ; Ramos-Astudillo, Reynaldo M., Auteur ; Mussa, Samir Ahmed, Auteur Article en page(s) : pp. 2307 - 2314 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Dc-ac  converters  Hybrid  inverters  Modulation  Symetrical  multilevel  converters Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : Novel symmetric hybrid multilevel topologies are introduced for both single- and three-phase medium-voltage high-power systems. The topology conception is presented in detail, where a three-level switching cell with low component count, and its modulation pattern give the origin of the proposed converters. Voltage sharing and low output-voltage distortion are achieved. The theoretical frequency spectra are derived. Switching devices are separated into high- and low-frequency devices, generating hybrid converters. Five-level three-phase topologies are generated from only three insulated dc sources, while the number of semiconductors is the same as for the cascaded H bridge. Both simulation and experimental results are provided showing the validity of the analysis. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5339229 [article] Symmetrical hybrid multilevel DC–AC converters with reduced number of insulated DC supplies [texte imprimé] / Ruiz-Caballero, Domingo A., Auteur ; Ramos-Astudillo, Reynaldo M., Auteur ; Mussa, Samir Ahmed, Auteur . - pp. 2307 - 2314. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2307 - 2314 Mots-clés : Dc-ac  converters  Hybrid  inverters  Modulation  Symetrical  multilevel  converters Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : Novel symmetric hybrid multilevel topologies are introduced for both single- and three-phase medium-voltage high-power systems. The topology conception is presented in detail, where a three-level switching cell with low component count, and its modulation pattern give the origin of the proposed converters. Voltage sharing and low output-voltage distortion are achieved. The theoretical frequency spectra are derived. Switching devices are separated into high- and low-frequency devices, generating hybrid converters. Five-level three-phase topologies are generated from only three insulated dc sources, while the number of semiconductors is the same as for the cascaded H bridge. Both simulation and experimental results are provided showing the validity of the analysis. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5339229

Selective harmonic mitigation technique for high-power converters / Napoles, Javier in IEEE transactions on industrial electronics, Vol. 57 N° 7 (Juillet 2010) 

Public ISBD [article]  in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2315 - 2323 Titre : Selective harmonic mitigation technique for high-power converters Type de document : texte imprimé Auteurs : Napoles, Javier, Auteur ; Leon, José I., Auteur ; Portillo, Ramon, Auteur Article en page(s) : pp. 2315 - 2323 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Filters  Harmonic  distorsion  Multilevel  systems Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : In high-power applications, the maximum switching frequency is limited due to thermal losses. This leads to highly distorted output waveforms. In such applications, it is necessary to filter the output waveforms using bulky passive filtering systems. The recently presented selective harmonic mitigation pulsewidth modulation (SHMPWM) technique produces output waveforms where the harmonic distortion is limited, fulfilling specific grid codes when the number of switching angles is high enough. The related technique has been previously presented using a switching frequency that is equal to 750 Hz. In this paper, a special implementation of the SHMPWM technique optimized for very low switching frequency is studied. Experimental results obtained applying SHMPWM to a three-level neutral-point-clamped converter using a switching frequency that is equal to 350 Hz are presented. The obtained results show that the SHMPWM technique improves the results of previous selective harmonic elimination pulsewidth modulation techniques for very low switching frequencies. This fact highlights that the SHMPWM technique is very useful in high-power applications, leading its use to an important reduction of the bulky and expensive filtering elements. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5166484 [article] Selective harmonic mitigation technique for high-power converters [texte imprimé] / Napoles, Javier, Auteur ; Leon, José I., Auteur ; Portillo, Ramon, Auteur . - pp. 2315 - 2323. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2315 - 2323 Mots-clés : Filters  Harmonic  distorsion  Multilevel  systems Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : In high-power applications, the maximum switching frequency is limited due to thermal losses. This leads to highly distorted output waveforms. In such applications, it is necessary to filter the output waveforms using bulky passive filtering systems. The recently presented selective harmonic mitigation pulsewidth modulation (SHMPWM) technique produces output waveforms where the harmonic distortion is limited, fulfilling specific grid codes when the number of switching angles is high enough. The related technique has been previously presented using a switching frequency that is equal to 750 Hz. In this paper, a special implementation of the SHMPWM technique optimized for very low switching frequency is studied. Experimental results obtained applying SHMPWM to a three-level neutral-point-clamped converter using a switching frequency that is equal to 350 Hz are presented. The obtained results show that the SHMPWM technique improves the results of previous selective harmonic elimination pulsewidth modulation techniques for very low switching frequencies. This fact highlights that the SHMPWM technique is very useful in high-power applications, leading its use to an important reduction of the bulky and expensive filtering elements. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5166484

Three-dimensional space-vector modulation to reduce common-mode voltage for multilevel inverter / Renge, Mohan M. in IEEE transactions on industrial electronics, Vol. 57 N° 7 (Juillet 2010) 

Public ISBD [article]  in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2324 - 2331 Titre : Three-dimensional space-vector modulation to reduce common-mode voltage for multilevel inverter Type de document : texte imprimé Auteurs : Renge, Mohan M., Auteur ; Hiralal M. Suryawanshi, Auteur Article en page(s) : pp. 2324 - 2331 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Common-mode  voltage  (CMV)  Multilevel  inverter  Pulsewidth  modulation  (PWM)  Space-vector  modulation  (SVM) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : In this paper, an approach to reduce common-mode voltage (CMV) at the output of multilevel inverter using 3-D space-vector modulation (SVM) is proposed. The 3-D SVM is superset of the traditional 2-D SVM, and thus, it inherits all the merits of traditional 2-D. A simple technique for the selection of switching states to constitute the reference vector is proposed here. The computational cost of the proposed technique is independent of voltage levels of inverter. This technique is easy to implement online in digital controller. The tradeoff between quality of output voltage and CMV is achieved in this paper. This paper realizes the implementation of 3-D SVM to reduce the CMV using a five-level diode-clamped inverter for a three-phase induction motor. Experimental and simulation results demonstrate the feasibility of the proposed technique. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5170083 [article] Three-dimensional space-vector modulation to reduce common-mode voltage for multilevel inverter [texte imprimé] / Renge, Mohan M., Auteur ; Hiralal M. Suryawanshi, Auteur . - pp. 2324 - 2331. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2324 - 2331 Mots-clés : Common-mode  voltage  (CMV)  Multilevel  inverter  Pulsewidth  modulation  (PWM)  Space-vector  modulation  (SVM) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : In this paper, an approach to reduce common-mode voltage (CMV) at the output of multilevel inverter using 3-D space-vector modulation (SVM) is proposed. The 3-D SVM is superset of the traditional 2-D SVM, and thus, it inherits all the merits of traditional 2-D. A simple technique for the selection of switching states to constitute the reference vector is proposed here. The computational cost of the proposed technique is independent of voltage levels of inverter. This technique is easy to implement online in digital controller. The tradeoff between quality of output voltage and CMV is achieved in this paper. This paper realizes the implementation of 3-D SVM to reduce the CMV using a five-level diode-clamped inverter for a three-phase induction motor. Experimental and simulation results demonstrate the feasibility of the proposed technique. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5170083

A space vector switching strategy for three-level five-phase inverter drives / Gao, Liliang in IEEE transactions on industrial electronics, Vol. 57 N° 7 (Juillet 2010) 

Public ISBD [article]  in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2332 - 2343 Titre : A space vector switching strategy for three-level five-phase inverter drives Type de document : texte imprimé Auteurs : Gao, Liliang, Auteur ; Fletcher, John E., Auteur Article en page(s) : pp. 2332 - 2343 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : d1-q1  vector  space  d3-q3  vector  space  Optimized  five  vectors  (OFG)  Region  Three  level  five  phase Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : A novel space vector modulation (SVM) technique for a three-level five-phase inverter is described based on an optimized five vectors concept. The concept utilizes a novel vector minimization technique that reduces the number of vectors in the d1-q1 vector space by identifying candidate vectors in each of the ten sectors that comprise the decagon vector space. The candidate vectors are selected based on the inequality relationship between the five-phase voltages during each switching cycle. Using this technique, the original 243 inverter states are reduced to 113 candidate vectors, and from the remaining states ten possible switching sequences in each sector are utilized to develop the desired voltage reference in the d1-q1 vector space while forcing a null vector in the d3-q3 vector space. A novel region determination technique is also introduced to identify the subregion that the d1-q1 voltage vector occupies. This technique significantly reduces the computational overhead required when implementing SVM techniques with multilevel and multiphase inverters. The space vector technique can utilize redundant vectors to assist in balancing subcycle variation of the dc-link capacitor voltage under unbalanced load conditions. Experiments validate simulation results where the low-order voltage harmonics show that the d3-q3 voltage vector is null. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5280230 [article] A space vector switching strategy for three-level five-phase inverter drives [texte imprimé] / Gao, Liliang, Auteur ; Fletcher, John E., Auteur . - pp. 2332 - 2343. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2332 - 2343 Mots-clés : d1-q1  vector  space  d3-q3  vector  space  Optimized  five  vectors  (OFG)  Region  Three  level  five  phase Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : A novel space vector modulation (SVM) technique for a three-level five-phase inverter is described based on an optimized five vectors concept. The concept utilizes a novel vector minimization technique that reduces the number of vectors in the d1-q1 vector space by identifying candidate vectors in each of the ten sectors that comprise the decagon vector space. The candidate vectors are selected based on the inequality relationship between the five-phase voltages during each switching cycle. Using this technique, the original 243 inverter states are reduced to 113 candidate vectors, and from the remaining states ten possible switching sequences in each sector are utilized to develop the desired voltage reference in the d1-q1 vector space while forcing a null vector in the d3-q3 vector space. A novel region determination technique is also introduced to identify the subregion that the d1-q1 voltage vector occupies. This technique significantly reduces the computational overhead required when implementing SVM techniques with multilevel and multiphase inverters. The space vector technique can utilize redundant vectors to assist in balancing subcycle variation of the dc-link capacitor voltage under unbalanced load conditions. Experiments validate simulation results where the low-order voltage harmonics show that the d3-q3 voltage vector is null. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5280230

Multiband hysteresis modulation and switching characterization for sliding-mode-controlled cascaded multilevel inverter / Gupta, Rajesh in IEEE transactions on industrial electronics, Vol. 57 N° 7 (Juillet 2010) 

Public ISBD [article]  in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2344 - 2353 Titre : Multiband hysteresis modulation and switching characterization for sliding-mode-controlled cascaded multilevel inverter Type de document : texte imprimé Auteurs : Gupta, Rajesh, Auteur ; Ghosh, Arindam, Auteur ; Joshi, Avinash, Auteur Article en page(s) : pp. 2344 - 2353 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Cascaded  H-bridge  multilevel  inverter  (CHBMLI)  Ddistribution  static  compensator  (DSTATCOM)  Multiband  hysteresis  modulation  Switching  characterization Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : In this paper, a generalized multiband hysteresis modulation and its characterization have been proposed for the sliding-mode control of cascaded H-bridge multilevel-inverter (CHBMLI)-controlled systems. A frequency-domain method is proposed for the determination of net hysteresis bandwidth for a given desired maximum switching frequency of the inverter. The switching transition concept of Tsypkin's method and the describing function of nonlinear relay have been used for the derivation of results. A hierarchical switching algorithm has been suggested for the modular cells of the cascaded multilevel inverter. The hierarchy of each cell is swapped sequentially to provide the self-balancing capability in case the dc-link voltage is supported by the capacitors. The simulation and experimental verification of the derived results are provided through a single-phase distribution static compensator (DSTATCOM) model. The application in the three-phase system has been shown through simulation studies on a 3.3-kV distribution-system compensation using DSTATCOM. Verification on both single- and three-phase systems is obtained using a five-level cascaded-multilevel-inverter topology. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5226573 [article] Multiband hysteresis modulation and switching characterization for sliding-mode-controlled cascaded multilevel inverter [texte imprimé] / Gupta, Rajesh, Auteur ; Ghosh, Arindam, Auteur ; Joshi, Avinash, Auteur . - pp. 2344 - 2353. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2344 - 2353 Mots-clés : Cascaded  H-bridge  multilevel  inverter  (CHBMLI)  Ddistribution  static  compensator  (DSTATCOM)  Multiband  hysteresis  modulation  Switching  characterization Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : In this paper, a generalized multiband hysteresis modulation and its characterization have been proposed for the sliding-mode control of cascaded H-bridge multilevel-inverter (CHBMLI)-controlled systems. A frequency-domain method is proposed for the determination of net hysteresis bandwidth for a given desired maximum switching frequency of the inverter. The switching transition concept of Tsypkin's method and the describing function of nonlinear relay have been used for the derivation of results. A hierarchical switching algorithm has been suggested for the modular cells of the cascaded multilevel inverter. The hierarchy of each cell is swapped sequentially to provide the self-balancing capability in case the dc-link voltage is supported by the capacitors. The simulation and experimental verification of the derived results are provided through a single-phase distribution static compensator (DSTATCOM) model. The application in the three-phase system has been shown through simulation studies on a 3.3-kV distribution-system compensation using DSTATCOM. Verification on both single- and three-phase systems is obtained using a five-level cascaded-multilevel-inverter topology. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5226573

A new space-vector PWM With optimal switching selection for multilevel coupled inductor inverters / Vafakhah, Behzad in IEEE transactions on industrial electronics, Vol. 57 N° 7 (Juillet 2010) 

Public ISBD [article]  in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2354 - 2364 Titre : A new space-vector PWM With optimal switching selection for multilevel coupled inductor inverters Type de document : texte imprimé Auteurs : Vafakhah, Behzad, Auteur ; Salmon, John, Auteur ; Knight, Andrew M., Auteur Article en page(s) : pp. 2354 - 2364 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Coupled  inductor  inverter  (CII)  Multilevel  inverter  Spce  vector  pulsewidth  modulation  (SVPWM) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : Multilevel space vector pulsewidth modulation (SVPWM) control is shown to be a very useful tool for coupled inductor inverters as six independent pulsewidth modulation (PWM) signals are required, and there is additional complexity of meeting the performance requirements for the coupled inductor while balancing the winding common-mode dc current and generating high-quality multilevel PWM output voltages. A new multilevel SVPWM technique with a five-segment switching sequence is described, where half-wave symmetrical PWM voltage waveforms are used to balance the inductor common-mode dc voltages and also to avoid all possible switching states with a high winding current ripple. The proposed SVPWM is shown to have better inverter performance, compared with traditional carrier-based and the original multilevel SVPWM schemes at low modulation depths. Inverter operation with the proposed SVPWM is validated through simulation and experimental results. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5373904 [article] A new space-vector PWM With optimal switching selection for multilevel coupled inductor inverters [texte imprimé] / Vafakhah, Behzad, Auteur ; Salmon, John, Auteur ; Knight, Andrew M., Auteur . - pp. 2354 - 2364. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2354 - 2364 Mots-clés : Coupled  inductor  inverter  (CII)  Multilevel  inverter  Spce  vector  pulsewidth  modulation  (SVPWM) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : Multilevel space vector pulsewidth modulation (SVPWM) control is shown to be a very useful tool for coupled inductor inverters as six independent pulsewidth modulation (PWM) signals are required, and there is additional complexity of meeting the performance requirements for the coupled inductor while balancing the winding common-mode dc current and generating high-quality multilevel PWM output voltages. A new multilevel SVPWM technique with a five-segment switching sequence is described, where half-wave symmetrical PWM voltage waveforms are used to balance the inductor common-mode dc voltages and also to avoid all possible switching states with a high winding current ripple. The proposed SVPWM is shown to have better inverter performance, compared with traditional carrier-based and the original multilevel SVPWM schemes at low modulation depths. Inverter operation with the proposed SVPWM is validated through simulation and experimental results. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5373904

A novel PWM control method for hybrid-clamped multilevel inverters / Zhao, Jing in IEEE transactions on industrial electronics, Vol. 57 N° 7 (Juillet 2010) 

Public ISBD [article]  in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2365 - 2373 Titre : A novel PWM control method for hybrid-clamped multilevel inverters Type de document : texte imprimé Auteurs : Zhao, Jing, Auteur ; He, Xiangning, Auteur ; Zhao, Rongxiang, Auteur Article en page(s) : pp. 2365 - 2373 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Hybrid  clamped  Multilevel  inverters  Pulsewidth  modulation  (PWM) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : A novel pulsewidth modulation (PWM) control method is proposed in this paper. The PWM control method is called higher and lower carrier cells alternative phase opposition PWM (HLCCAPOPWM) for the hybrid-clamped multilevel inverter and based on the improvement of carrier phase disposition PWM (PDPWM). The principle of the HLCCAPOPWM method, the comparison with the carrier PDPWM method, and the analysis on output voltage spectrum are given. Simulations and experiments show that comparing with the carrier PDPWM method, the novel method can effectively reduce the number of devices switching on or off within broad modulation index range, consequently reducing switching losses, and remarkably reduce the amplitude of lower harmonics. Simulations also show the generalization of the HLCCAPOPWM method for hybrid-clamped n-level inverters and neutral-point-clamped inverters. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5175404 [article] A novel PWM control method for hybrid-clamped multilevel inverters [texte imprimé] / Zhao, Jing, Auteur ; He, Xiangning, Auteur ; Zhao, Rongxiang, Auteur . - pp. 2365 - 2373. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2365 - 2373 Mots-clés : Hybrid  clamped  Multilevel  inverters  Pulsewidth  modulation  (PWM) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : A novel pulsewidth modulation (PWM) control method is proposed in this paper. The PWM control method is called higher and lower carrier cells alternative phase opposition PWM (HLCCAPOPWM) for the hybrid-clamped multilevel inverter and based on the improvement of carrier phase disposition PWM (PDPWM). The principle of the HLCCAPOPWM method, the comparison with the carrier PDPWM method, and the analysis on output voltage spectrum are given. Simulations and experiments show that comparing with the carrier PDPWM method, the novel method can effectively reduce the number of devices switching on or off within broad modulation index range, consequently reducing switching losses, and remarkably reduce the amplitude of lower harmonics. Simulations also show the generalization of the HLCCAPOPWM method for hybrid-clamped n-level inverters and neutral-point-clamped inverters. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5175404

Synchronous optimal pulsewidth modulation for low-switching-frequency control of medium-voltage multilevel inverters / Rathore, Akshay K. in IEEE transactions on industrial electronics, Vol. 57 N° 7 (Juillet 2010) 

Public ISBD [article]  in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2374 - 2381 Titre : Synchronous optimal pulsewidth modulation for low-switching-frequency control of medium-voltage multilevel inverters Type de document : texte imprimé Auteurs : Rathore, Akshay K., Auteur ; Holtz, Joachim, Auteur ; Boller, Till, Auteur Article en page(s) : pp. 2374 - 2381 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Medium-voltage  drives  Multilevel  inverters  Optimization  Synchronous  optimal  pulsewidth  modulation  (PWM) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper presents the mechanism and details of synchronous optimal pulsewidth modulation (PWM) generation for control of medium-voltage induction motor drives using multilevel inverters at low switching frequency. Multilevel inverters allow operation at multiple of dc-link voltage and reduce the total harmonic distortion (THD). Synchronous optimal PWM control permits setting the maximum switching frequency to a low value without compromising THD. Low switching frequency reduces the switching losses of the power semiconductor devices. An optimal control procedure is explained in detail. The performances of three- and five-level inverter topologies are compared. The experimental results of a five-level inverter drive using optimal PWM control are presented. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5446385 [article] Synchronous optimal pulsewidth modulation for low-switching-frequency control of medium-voltage multilevel inverters [texte imprimé] / Rathore, Akshay K., Auteur ; Holtz, Joachim, Auteur ; Boller, Till, Auteur . - pp. 2374 - 2381. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2374 - 2381 Mots-clés : Medium-voltage  drives  Multilevel  inverters  Optimization  Synchronous  optimal  pulsewidth  modulation  (PWM) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper presents the mechanism and details of synchronous optimal pulsewidth modulation (PWM) generation for control of medium-voltage induction motor drives using multilevel inverters at low switching frequency. Multilevel inverters allow operation at multiple of dc-link voltage and reduce the total harmonic distortion (THD). Synchronous optimal PWM control permits setting the maximum switching frequency to a low value without compromising THD. Low switching frequency reduces the switching losses of the power semiconductor devices. An optimal control procedure is explained in detail. The performances of three- and five-level inverter topologies are compared. The experimental results of a five-level inverter drive using optimal PWM control are presented. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5446385

Complete fast analytical solution of the optimal odd single-phase multilevel problem / Kujan, Petr in IEEE transactions on industrial electronics, Vol. 57 N° 7 (Juillet 2010) 

Public ISBD [article]  in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2382 - 2397 Titre : Complete fast analytical solution of the optimal odd single-phase multilevel problem Type de document : texte imprimé Auteurs : Kujan, Petr, Auteur ; Hromsik, Martin, Auteur ; Sebek, Michael, Auteur Article en page(s) : pp. 2382 - 2397 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Composite  sum  of  powers  Formal  orthogonal  polynominals  (FOPs)  Multilevel  (ML)  inverters  Newton's  identities  Optimal  pulsewidth  modulation  (PWM)  Proble  Padé  approximation  Polynominal  methods  Selected  harmonics  elimination Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : In this paper, we focus on the computation of optimal switching angles for general multilevel (ML) odd symmetry waveforms. We show that this problem is similar to (but more general than) the optimal pulsewidth modulation (PWM) problem, which is an established method of generating PWM waveforms with low baseband distortion. We introduce a new general modulation strategy for ML inverters, which takes an analytic form and is very fast, with a complexity of only O(n log2 n) arithmetic operations, where n is the number of controlled harmonics. This algorithm is based on a transformation of appropriate trigonometric equations for each controlled harmonics to a polynomial system of equations that is further transformed to a special system of composite sum of powers. The solution of this system is carried out by a modification of the Newton's identity via Padé approximation, formal orthogonal polynomials (FOPs) theory, and properties of symmetric polynomials. Finally, the optimal switching sequence is obtained by computing zeros of two FOP polynomials in one variable or, alternatively, by a special recurrence formula and eigenvalues computation. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5290139 [article] Complete fast analytical solution of the optimal odd single-phase multilevel problem [texte imprimé] / Kujan, Petr, Auteur ; Hromsik, Martin, Auteur ; Sebek, Michael, Auteur . - pp. 2382 - 2397. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2382 - 2397 Mots-clés : Composite  sum  of  powers  Formal  orthogonal  polynominals  (FOPs)  Multilevel  (ML)  inverters  Newton's  identities  Optimal  pulsewidth  modulation  (PWM)  Proble  Padé  approximation  Polynominal  methods  Selected  harmonics  elimination Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : In this paper, we focus on the computation of optimal switching angles for general multilevel (ML) odd symmetry waveforms. We show that this problem is similar to (but more general than) the optimal pulsewidth modulation (PWM) problem, which is an established method of generating PWM waveforms with low baseband distortion. We introduce a new general modulation strategy for ML inverters, which takes an analytic form and is very fast, with a complexity of only O(n log2 n) arithmetic operations, where n is the number of controlled harmonics. This algorithm is based on a transformation of appropriate trigonometric equations for each controlled harmonics to a polynomial system of equations that is further transformed to a special system of composite sum of powers. The solution of this system is carried out by a modification of the Newton's identity via Padé approximation, formal orthogonal polynomials (FOPs) theory, and properties of symmetric polynomials. Finally, the optimal switching sequence is obtained by computing zeros of two FOP polynomials in one variable or, alternatively, by a special recurrence formula and eigenvalues computation. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5290139

Evaluation of a multilevel cascaded-type dynamic voltage restorer employing discontinuous space vector modulation / Massoud, Ahmed M. in IEEE transactions on industrial electronics, Vol. 57 N° 7 (Juillet 2010) 

Public ISBD [article]  in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2398 - 2410 Titre : Evaluation of a multilevel cascaded-type dynamic voltage restorer employing discontinuous space vector modulation Type de document : texte imprimé Auteurs : Massoud, Ahmed M., Auteur ; Ahmed, Shehab, Auteur ; Enjeti, Prasad N., Auteur Article en page(s) : pp. 2398 - 2410 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Dynamic  voltage  restorer  (DVR)  Multilevel  inverter  Space  vector  modulation  (SVM) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : In this paper, the application of a cascaded multilevel inverter as a dynamic voltage restorer (DVR) is investigated. Two discontinuous multilevel space vector modulation (SVM) techniques are implemented for DVR control and are shown to reduce inverter switching losses while maintaining virtually the same harmonic performance as the conventional multilevel SVM at a high number of levels. This paper also presents a mathematical relationship for computing the distortion at the point of common coupling (PCC) as a function of the distortion of the DVR. This enables the selection of the number of levels required for a certain application. An extended sag duration support compared to the two-level DVR is another advantage of the DVR with a cascaded multilevel inverter. The common-mode voltage (CMV) at the PCC has been evaluated for the three SVM techniques (the conventional multilevel SVM and the two discontinuous SVM), presenting a lower CMV for the second discontinuous SVM. A design example is presented for an 11-kV 5-MVA DVR multilevel cascaded inverter for up to 17 levels, employing the conventional multilevel SVM and the two discontinuous SVM techniques. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5409613 [article] Evaluation of a multilevel cascaded-type dynamic voltage restorer employing discontinuous space vector modulation [texte imprimé] / Massoud, Ahmed M., Auteur ; Ahmed, Shehab, Auteur ; Enjeti, Prasad N., Auteur . - pp. 2398 - 2410. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2398 - 2410 Mots-clés : Dynamic  voltage  restorer  (DVR)  Multilevel  inverter  Space  vector  modulation  (SVM) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : In this paper, the application of a cascaded multilevel inverter as a dynamic voltage restorer (DVR) is investigated. Two discontinuous multilevel space vector modulation (SVM) techniques are implemented for DVR control and are shown to reduce inverter switching losses while maintaining virtually the same harmonic performance as the conventional multilevel SVM at a high number of levels. This paper also presents a mathematical relationship for computing the distortion at the point of common coupling (PCC) as a function of the distortion of the DVR. This enables the selection of the number of levels required for a certain application. An extended sag duration support compared to the two-level DVR is another advantage of the DVR with a cascaded multilevel inverter. The common-mode voltage (CMV) at the PCC has been evaluated for the three SVM techniques (the conventional multilevel SVM and the two discontinuous SVM), presenting a lower CMV for the second discontinuous SVM. A design example is presented for an 11-kV 5-MVA DVR multilevel cascaded inverter for up to 17 levels, employing the conventional multilevel SVM and the two discontinuous SVM techniques. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5409613

Asymmetrical cascade multilevel converters with noninteger or dynamically changing DC voltage ratios / Lu, Shuai in IEEE transactions on industrial electronics, Vol. 57 N° 7 (Juillet 2010) 

Public ISBD [article]  in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2411 - 2418 Titre : Asymmetrical cascade multilevel converters with noninteger or dynamically changing DC voltage ratios : concepts and modulation techniques Type de document : texte imprimé Auteurs : Lu, Shuai, Auteur ; Mariéthoz, Sébastien, Auteur ; Corzine, Keith A., Auteur Article en page(s) : pp. 2411 - 2418 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Asymetrical  multilevel  converters  Multilevel  modulation Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : Asymmetrical cascade multilevel inverters offer a high number of voltage levels with a given switch count. For a given topology, the number of levels depends on the configuration of the dc voltage (ratios). This paper deals with the design and control of such converters with noninteger dc voltage ratio, which leads to unevenly distributed space vectors. It describes how to select the dc voltage ratio configurations that yield space vectors as evenly distributed as possible. It describes how to produce an effective PWM modulation that allows generating undistorted current even in the presence of (some) unevenly distributed space vectors. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5409616 [article] Asymmetrical cascade multilevel converters with noninteger or dynamically changing DC voltage ratios : concepts and modulation techniques [texte imprimé] / Lu, Shuai, Auteur ; Mariéthoz, Sébastien, Auteur ; Corzine, Keith A., Auteur . - pp. 2411 - 2418. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2411 - 2418 Mots-clés : Asymetrical  multilevel  converters  Multilevel  modulation Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : Asymmetrical cascade multilevel inverters offer a high number of voltage levels with a given switch count. For a given topology, the number of levels depends on the configuration of the dc voltage (ratios). This paper deals with the design and control of such converters with noninteger dc voltage ratio, which leads to unevenly distributed space vectors. It describes how to select the dc voltage ratio configurations that yield space vectors as evenly distributed as possible. It describes how to produce an effective PWM modulation that allows generating undistorted current even in the presence of (some) unevenly distributed space vectors. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5409616

A hybrid passive filter configuration for VAR control and harmonic compensation / Hamadi, Abdelhamid in IEEE transactions on industrial electronics, Vol. 57 N° 7 (Juillet 2010) 

Public ISBD [article]  in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2419 - 2434 Titre : A hybrid passive filter configuration for VAR control and harmonic compensation Type de document : texte imprimé Auteurs : Hamadi, Abdelhamid, Auteur ; Rahmani, Salem, Auteur ; Kamal Al Haddad, Auteur Article en page(s) : pp. 2419 - 2434 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Hybrid  passive  filter  (HPF)  Resonance  damping  and  reative-power  compensation  Voltage  and  current  harmonic  compensation Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper proposes a novel topology for a three-phase hybrid passive filter (HPF) to compensate for reactive power and harmonics. The HPF consists of a series passive filter and a thyristor-controlled-reactor-based variable-impedance shunt passive filter (SPF). A mutual-inductance design concept is used to reduce the series passive filter inductance rating. The special features of the proposed HPF system are as follows: 1) insensitivity to source-impedance variations; 2) no series or parallel resonance problems; 3) fast dynamic response; and 4) significant size reduction in an SPF capacitor. The performance of the proposed HPF system is validated by simulation, as well as by experimentation, under different load conditions. Experimental and simulation results show that the proposed system can effectively compensate all voltage and current harmonics and reactive power for large nonlinear loads. DEWEY : 621.38 ISSN : 278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5313857 [article] A hybrid passive filter configuration for VAR control and harmonic compensation [texte imprimé] / Hamadi, Abdelhamid, Auteur ; Rahmani, Salem, Auteur ; Kamal Al Haddad, Auteur . - pp. 2419 - 2434. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2419 - 2434 Mots-clés : Hybrid  passive  filter  (HPF)  Resonance  damping  and  reative-power  compensation  Voltage  and  current  harmonic  compensation Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper proposes a novel topology for a three-phase hybrid passive filter (HPF) to compensate for reactive power and harmonics. The HPF consists of a series passive filter and a thyristor-controlled-reactor-based variable-impedance shunt passive filter (SPF). A mutual-inductance design concept is used to reduce the series passive filter inductance rating. The special features of the proposed HPF system are as follows: 1) insensitivity to source-impedance variations; 2) no series or parallel resonance problems; 3) fast dynamic response; and 4) significant size reduction in an SPF capacitor. The performance of the proposed HPF system is validated by simulation, as well as by experimentation, under different load conditions. Experimental and simulation results show that the proposed system can effectively compensate all voltage and current harmonics and reactive power for large nonlinear loads. DEWEY : 621.38 ISSN : 278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5313857

Online parameter estimation and adaptive control of permanent-magnet synchronous machines / Underwood, Samuel J. in IEEE transactions on industrial electronics, Vol. 57 N° 7 (Juillet 2010) 

Public ISBD [article]  in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2435 - 2443 Titre : Online parameter estimation and adaptive control of permanent-magnet synchronous machines Type de document : texte imprimé Auteurs : Underwood, Samuel J., Auteur ; Husain, Iqbal, Auteur Article en page(s) : pp. 2435 - 2443 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Adaptive  control  Parameter  estimation  Permanent-magnet  synchronous  machine  (PMSM)  PM  synchronous  motors  Recursive  least  square  (RLS)  algorithm Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper focuses on the benefits of adaptive control for permanent-magnet synchronous machines; a novel method of online parameter estimation for such machines has been developed. Two recursive least square algorithm segments, a fast and a slow one, are uniquely combined in real time with rich enough data from the machine to estimate all four machine parameters instead of a subset of these. Simulation and experimental results demonstrate the effectiveness of the proposed method. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5332312 [article] Online parameter estimation and adaptive control of permanent-magnet synchronous machines [texte imprimé] / Underwood, Samuel J., Auteur ; Husain, Iqbal, Auteur . - pp. 2435 - 2443. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2435 - 2443 Mots-clés : Adaptive  control  Parameter  estimation  Permanent-magnet  synchronous  machine  (PMSM)  PM  synchronous  motors  Recursive  least  square  (RLS)  algorithm Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper focuses on the benefits of adaptive control for permanent-magnet synchronous machines; a novel method of online parameter estimation for such machines has been developed. Two recursive least square algorithm segments, a fast and a slow one, are uniquely combined in real time with rich enough data from the machine to estimate all four machine parameters instead of a subset of these. Simulation and experimental results demonstrate the effectiveness of the proposed method. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5332312

Electromagnetic stirrer operating in double axis / Ege, Yavuz in IEEE transactions on industrial electronics, Vol. 57 N° 7 (Juillet 2010) 

Public ISBD [article]  in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2444 - 2453 Titre : Electromagnetic stirrer operating in double axis Type de document : texte imprimé Auteurs : Ege, Yavuz, Auteur ; Kalender, Osman, Auteur ; Nazlibilek, Sedat, Auteur Article en page(s) : pp. 2444 - 2453 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Electromagnetic  stirrer  Magnetic  stir  bar  Programmable-integrated-circuit  (PIC)  Microcontroller  Rotating  magnetic  field Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : In this paper, a new rotating magnetic stirrer system that is controlled by a programmable-integrated-circuit (PIC) microcontroller and can stir in double axis is developed. In contrast to making a stirring action only at one point, as in the case of traditional electromagnetic stirrers, the system that is developed can rotate at two separate axes. One of the rotations is around the axis of the magnetic stir bar itself, and the other is over a circle defined by a rotating magnetic field. That is, the stirrer makes two rotational motions. This is the main contribution of this paper. The magnetic stirrer system is designed as a three-phase system, and a sinusoidal ramp signal is applied to the phases as the supply voltage. During the design stage, the mathematical model of the system was obtained, and the parameters affecting the design were determined. Based on these parameters, a parameter set was established. This parameter set can be used for subsequent design studies of the system. A PIC-based control circuit is used to control the frequency of the supply voltage. The structure of the double-rotating electromagnetic stirring system is explained. The physical conditions affecting the double-axis rotational motion of the magnetic stir bar are discussed in detail. It was observed that a more homogeneous stirring process could be achieved with this kind of double-axis rotation. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5290138 [article] Electromagnetic stirrer operating in double axis [texte imprimé] / Ege, Yavuz, Auteur ; Kalender, Osman, Auteur ; Nazlibilek, Sedat, Auteur . - pp. 2444 - 2453. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2444 - 2453 Mots-clés : Electromagnetic  stirrer  Magnetic  stir  bar  Programmable-integrated-circuit  (PIC)  Microcontroller  Rotating  magnetic  field Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : In this paper, a new rotating magnetic stirrer system that is controlled by a programmable-integrated-circuit (PIC) microcontroller and can stir in double axis is developed. In contrast to making a stirring action only at one point, as in the case of traditional electromagnetic stirrers, the system that is developed can rotate at two separate axes. One of the rotations is around the axis of the magnetic stir bar itself, and the other is over a circle defined by a rotating magnetic field. That is, the stirrer makes two rotational motions. This is the main contribution of this paper. The magnetic stirrer system is designed as a three-phase system, and a sinusoidal ramp signal is applied to the phases as the supply voltage. During the design stage, the mathematical model of the system was obtained, and the parameters affecting the design were determined. Based on these parameters, a parameter set was established. This parameter set can be used for subsequent design studies of the system. A PIC-based control circuit is used to control the frequency of the supply voltage. The structure of the double-rotating electromagnetic stirring system is explained. The physical conditions affecting the double-axis rotational motion of the magnetic stir bar are discussed in detail. It was observed that a more homogeneous stirring process could be achieved with this kind of double-axis rotation. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5290138

Improved three-phase current reconstruction for induction motor drives with DC-link shunt / Marcetic, Darko P. in IEEE transactions on industrial electronics, Vol. 57 N° 7 (Juillet 2010) 

Public ISBD [article]  in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2454 - 2462 Titre : Improved three-phase current reconstruction for induction motor drives with DC-link shunt Type de document : texte imprimé Auteurs : Marcetic, Darko P., Auteur ; Adzic, Evgenije M., Auteur Article en page(s) : pp. 2454 - 2462 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Current  measurement  Dc-link  transducer  Induction  motor  (IM)  IM  drives  Pulsewidth  modulation  (PWM) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper aims to reveal an offset jitter-like waveform error, which is usually present in all three-phase current signals reconstructed from dc-link current samples. This paper also presents a method for the cancellation of that error, which could be useful in low-cost shaft-sensorless drives. A combination of two samples' time displacement and the line current pulse-width modulation (PWM) ripple produces a distinctive shape of the reconstructed current error, which is offset jitter like, and is always at the current ripple level. This unusual waveform distortion is often masked by other jitters and noise sources and therefore is typically not given in the relevant literature. However, the distortion is difficult to filter out, and it may be harmful, particularly in applications with low rated motor current. The proposed waveform correction scheme uses the readily available motor states in shaft-sensorless drives and does not require major computational effort. Experimental results show that the scheme recovers the α-β current waveforms and, as a result, prevent the increase in the sixth harmonic ripple in the d-q currents, which is inherent to the PWM inverter-controlled drives. Consequently, drives with the dc shunt will neither have current signal offset problems nor the need for d-q current signal prefilters with order significantly higher than usual. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5308341 [article] Improved three-phase current reconstruction for induction motor drives with DC-link shunt [texte imprimé] / Marcetic, Darko P., Auteur ; Adzic, Evgenije M., Auteur . - pp. 2454 - 2462. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2454 - 2462 Mots-clés : Current  measurement  Dc-link  transducer  Induction  motor  (IM)  IM  drives  Pulsewidth  modulation  (PWM) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper aims to reveal an offset jitter-like waveform error, which is usually present in all three-phase current signals reconstructed from dc-link current samples. This paper also presents a method for the cancellation of that error, which could be useful in low-cost shaft-sensorless drives. A combination of two samples' time displacement and the line current pulse-width modulation (PWM) ripple produces a distinctive shape of the reconstructed current error, which is offset jitter like, and is always at the current ripple level. This unusual waveform distortion is often masked by other jitters and noise sources and therefore is typically not given in the relevant literature. However, the distortion is difficult to filter out, and it may be harmful, particularly in applications with low rated motor current. The proposed waveform correction scheme uses the readily available motor states in shaft-sensorless drives and does not require major computational effort. Experimental results show that the scheme recovers the α-β current waveforms and, as a result, prevent the increase in the sixth harmonic ripple in the d-q currents, which is inherent to the PWM inverter-controlled drives. Consequently, drives with the dc shunt will neither have current signal offset problems nor the need for d-q current signal prefilters with order significantly higher than usual. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5308341

High-efficiency ZCS buck converter for rechargeable batteries / Chuang, Ying-Chun in IEEE transactions on industrial electronics, Vol. 57 N° 7 (Juillet 2010) 

Public ISBD [article]  in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2463 - 2472 Titre : High-efficiency ZCS buck converter for rechargeable batteries Type de document : texte imprimé Auteurs : Chuang, Ying-Chun, Auteur Article en page(s) : pp. 2463 - 2472 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Battery  charger  Soft  switching  Zero-current  switching  (ZCS) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : To obtain zero-current-switching (ZCS) operation, this paper develops a novel soft-switching approach for rechargeable batteries. By inserting an auxiliary switch in series with a resonant capacitor, the proposed topology can obtain a novel ZCS buck dc-dc battery charger and significantly decrease the switching losses in active power switches. The proposed ZCS dc-dc battery charger has a straightforward structure, low cost, easy control, and high efficiency. The operating principles and design procedure of the proposed charger are thoroughly analyzed. The optimal values of the resonant components are computed by applying the characteristic curve and electric functions derived from the circuit configuration. Finally, a prototype charger circuit designed for a 12-V 48-Ah lead acid battery is constructed and tested to confirm the theoretical predictions. The maximum charging efficiency of the proposed topology during the overall charging period is 90.3%. Satisfactory performance is obtained from the experimental results. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5313856 [article] High-efficiency ZCS buck converter for rechargeable batteries [texte imprimé] / Chuang, Ying-Chun, Auteur . - pp. 2463 - 2472. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2463 - 2472 Mots-clés : Battery  charger  Soft  switching  Zero-current  switching  (ZCS) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : To obtain zero-current-switching (ZCS) operation, this paper develops a novel soft-switching approach for rechargeable batteries. By inserting an auxiliary switch in series with a resonant capacitor, the proposed topology can obtain a novel ZCS buck dc-dc battery charger and significantly decrease the switching losses in active power switches. The proposed ZCS dc-dc battery charger has a straightforward structure, low cost, easy control, and high efficiency. The operating principles and design procedure of the proposed charger are thoroughly analyzed. The optimal values of the resonant components are computed by applying the characteristic curve and electric functions derived from the circuit configuration. Finally, a prototype charger circuit designed for a 12-V 48-Ah lead acid battery is constructed and tested to confirm the theoretical predictions. The maximum charging efficiency of the proposed topology during the overall charging period is 90.3%. Satisfactory performance is obtained from the experimental results. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5313856

Conventional space-vector modulation techniques versus the single-phase modulator for multilevel converters / Leon, José I. in IEEE transactions on industrial electronics, Vol. 57 N° 7 (Juillet 2010) 

Public ISBD [article]  in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2473 - 2482 Titre : Conventional space-vector modulation techniques versus the single-phase modulator for multilevel converters Type de document : texte imprimé Auteurs : Leon, José I., Auteur ; Vazquez, Sergio, Auteur ; Sanchez, Juan A., Auteur Article en page(s) : pp. 2473 - 2482 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Modulation  Multilevel  system Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : Space-vector modulation (SVM) is a well-suited technique to be applied to multilevel converters and is an important research focus in the last 25 years. Recently, a single-phase multilevel modulator has been introduced, showing its conceptual simplicity and its very low computational cost. In this paper, some of the most conventional multilevel SVM techniques have been chosen to compare their results with those obtained with single-phase multilevel modulators. The obtained results demonstrate that the single-phase multilevel modulators applied to each phase are equivalent with the chosen well-known multilevel SVM techniques. In this way, single-phase multilevel modulators can be applied to a converter with any number of levels and phases, avoiding the use of conceptually and mathematically complex SVM strategies. Analytical calculations and experimental results are shown, validating the proposed concepts. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5290136 [article] Conventional space-vector modulation techniques versus the single-phase modulator for multilevel converters [texte imprimé] / Leon, José I., Auteur ; Vazquez, Sergio, Auteur ; Sanchez, Juan A., Auteur . - pp. 2473 - 2482. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2473 - 2482 Mots-clés : Modulation  Multilevel  system Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : Space-vector modulation (SVM) is a well-suited technique to be applied to multilevel converters and is an important research focus in the last 25 years. Recently, a single-phase multilevel modulator has been introduced, showing its conceptual simplicity and its very low computational cost. In this paper, some of the most conventional multilevel SVM techniques have been chosen to compare their results with those obtained with single-phase multilevel modulators. The obtained results demonstrate that the single-phase multilevel modulators applied to each phase are equivalent with the chosen well-known multilevel SVM techniques. In this way, single-phase multilevel modulators can be applied to a converter with any number of levels and phases, avoiding the use of conceptually and mathematically complex SVM strategies. Analytical calculations and experimental results are shown, validating the proposed concepts. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5290136

Steady-state analysis and designing impedance network of Z-source inverters / Rajakaruna, Sumedha in IEEE transactions on industrial electronics, Vol. 57 N° 7 (Juillet 2010) 

Public ISBD [article]  in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2483 - 2491 Titre : Steady-state analysis and designing impedance network of Z-source inverters Type de document : texte imprimé Auteurs : Rajakaruna, Sumedha, Auteur ; Jayawickrama, Laksumana, Auteur Article en page(s) : pp. 2483 - 2491 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Impedance  network  Operating  states  Ripple  factor  Z-source Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : All possible steady states of a Z-source inverter are identified and analyzed with the objective of deriving design guidelines for the symmetrical impedance network. This paper shows that, in addition to the desired three dynamic states, an operating cycle can contain another three static states that do not contribute to the power conversion process. These three static states can be avoided by selecting suitably large capacitors and inductors. By using the equations derived in the steady-state analysis, this paper presents guidelines to design the impedance network accurately for the case where the inverter is operated only in active and shoot-through states. The proposed design method can also be used to predict the critical values of capacitance and inductance below which static states appear during the operating cycle. Computer simulations and laboratory experiments are used to verify the design method and to demonstrate the appearance of static states when the capacitors and inductors are sized lower than their critical values. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5447792 [article] Steady-state analysis and designing impedance network of Z-source inverters [texte imprimé] / Rajakaruna, Sumedha, Auteur ; Jayawickrama, Laksumana, Auteur . - pp. 2483 - 2491. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2483 - 2491 Mots-clés : Impedance  network  Operating  states  Ripple  factor  Z-source Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : All possible steady states of a Z-source inverter are identified and analyzed with the objective of deriving design guidelines for the symmetrical impedance network. This paper shows that, in addition to the desired three dynamic states, an operating cycle can contain another three static states that do not contribute to the power conversion process. These three static states can be avoided by selecting suitably large capacitors and inductors. By using the equations derived in the steady-state analysis, this paper presents guidelines to design the impedance network accurately for the case where the inverter is operated only in active and shoot-through states. The proposed design method can also be used to predict the critical values of capacitance and inductance below which static states appear during the operating cycle. Computer simulations and laboratory experiments are used to verify the design method and to demonstrate the appearance of static states when the capacitors and inductors are sized lower than their critical values. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5447792

Field experience with performances evaluation of a single-crystalline photovoltaic panel in an underwater environment / Lanzafame, Rosario in IEEE transactions on industrial electronics, Vol. 57 N° 7 (Juillet 2010) 

Public ISBD [article]  in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2492 - 2498 Titre : Field experience with performances evaluation of a single-crystalline photovoltaic panel in an underwater environment Type de document : texte imprimé Auteurs : Lanzafame, Rosario, Auteur ; Nachtmann, Silvia, Auteur ; Rosa-Clot, Marco, Auteur Article en page(s) : pp. 2492 - 2498 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Cell  temperature  Photovoltaic  (PV)  Spectral  absorption  Spectral  efficiency  Water Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : In this paper, the electrical and thermal performances of a single-crystalline submerged photovoltaic (PV) solar panel (SP2) is investigated. In particular, due to the presence of water, several phenomena occur such as the modification of solar-radiation spectrum and the reduction of the module operating temperature. These phenomena have different impacts on the global energy performance of the PV module, which depends on the environmental conditions, on the PV technology, and on the water depth. Energy performances of an SP2 module are measured using two different experimental setups in different environmental conditions, with an increase in power ranging from 10% to 15%. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5313869 [article] Field experience with performances evaluation of a single-crystalline photovoltaic panel in an underwater environment [texte imprimé] / Lanzafame, Rosario, Auteur ; Nachtmann, Silvia, Auteur ; Rosa-Clot, Marco, Auteur . - pp. 2492 - 2498. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2492 - 2498 Mots-clés : Cell  temperature  Photovoltaic  (PV)  Spectral  absorption  Spectral  efficiency  Water Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : In this paper, the electrical and thermal performances of a single-crystalline submerged photovoltaic (PV) solar panel (SP2) is investigated. In particular, due to the presence of water, several phenomena occur such as the modification of solar-radiation spectrum and the reduction of the module operating temperature. These phenomena have different impacts on the global energy performance of the PV module, which depends on the environmental conditions, on the PV technology, and on the water depth. Energy performances of an SP2 module are measured using two different experimental setups in different environmental conditions, with an increase in power ranging from 10% to 15%. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5313869

A closed-form solution to asymmetric motion profile allowing acceleration manipulation / Rew, Keun-Ho in IEEE transactions on industrial electronics, Vol. 57 N° 7 (Juillet 2010) 

Public ISBD [article]  in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2499 - 2506 Titre : A closed-form solution to asymmetric motion profile allowing acceleration manipulation Type de document : texte imprimé Auteurs : Rew, Keun-Ho, Auteur ; Kim, Kyung-Soo, Auteur Article en page(s) : pp. 2499 - 2506 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Asymetric  S-curve  Jerk  ratio  Motion  profile  Optical  data  storage  device  Overshoot  S-curve  Sledge  control Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : In this paper, we propose a new complete closed-form formula for asymmetric motion profiles of long, medium, and short distances, which enables easy manipulation of jerks in arrival time for effectively reducing the acceleration and thus the overshoot. The design parameter named jerk ratio is newly introduced to scale down the jerks during the deceleration period so that the velocity profile is in an asymmetric S-curve. Owing to the jerk ratio, the motion formulas are remarkably simplified in analytic forms for short, medium, and long distances. The effectiveness of the proposed approach will be illustrated with the sledge movement control in an optical data storage system by experiments. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5332330 [article] A closed-form solution to asymmetric motion profile allowing acceleration manipulation [texte imprimé] / Rew, Keun-Ho, Auteur ; Kim, Kyung-Soo, Auteur . - pp. 2499 - 2506. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2499 - 2506 Mots-clés : Asymetric  S-curve  Jerk  ratio  Motion  profile  Optical  data  storage  device  Overshoot  S-curve  Sledge  control Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : In this paper, we propose a new complete closed-form formula for asymmetric motion profiles of long, medium, and short distances, which enables easy manipulation of jerks in arrival time for effectively reducing the acceleration and thus the overshoot. The design parameter named jerk ratio is newly introduced to scale down the jerks during the deceleration period so that the velocity profile is in an asymmetric S-curve. Owing to the jerk ratio, the motion formulas are remarkably simplified in analytic forms for short, medium, and long distances. The effectiveness of the proposed approach will be illustrated with the sledge movement control in an optical data storage system by experiments. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5332330

Multilayer control of an optical reference cavity for space applications / Ospina, José in IEEE transactions on industrial electronics, Vol. 57 N° 7 (Juillet 2010) 

Public ISBD [article]  in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2507 - 2518 Titre : Multilayer control of an optical reference cavity for space applications Type de document : texte imprimé Auteurs : Ospina, José, Auteur ; Enrico Canuto, Auteur ; Molano-Jimenez, Andrés, Auteur Article en page(s) : pp. 2507 - 2518 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Digital  control  Reference  cavity  Temperature  control  Temperature  measurement Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper deals with multilayer and fine thermal control of an optical reference cavity for space applications. The cavity, made of ultralow-expansion glass, must be kept close to the zero-expansion temperature (ZET) of the glass (near room temperature). The target can only be met by active control, while leaving the cavity free of sensors and actuators. This is achieved by applying two concepts: thermal bath and reference thermal sink, the latter allowing the ZET to be reached by heaters in a wide range of the environment. Guidelines for cavity design and thermal control implementation are detailed together with preliminary experimental results. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5447814 [article] Multilayer control of an optical reference cavity for space applications [texte imprimé] / Ospina, José, Auteur ; Enrico Canuto, Auteur ; Molano-Jimenez, Andrés, Auteur . - pp. 2507 - 2518. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2507 - 2518 Mots-clés : Digital  control  Reference  cavity  Temperature  control  Temperature  measurement Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper deals with multilayer and fine thermal control of an optical reference cavity for space applications. The cavity, made of ultralow-expansion glass, must be kept close to the zero-expansion temperature (ZET) of the glass (near room temperature). The target can only be met by active control, while leaving the cavity free of sensors and actuators. This is achieved by applying two concepts: thermal bath and reference thermal sink, the latter allowing the ZET to be reached by heaters in a wide range of the environment. Guidelines for cavity design and thermal control implementation are detailed together with preliminary experimental results. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5447814

Zero vibration on–off position control of dual solenoid actuator / Yu, Lan in IEEE transactions on industrial electronics, Vol. 57 N° 7 (Juillet 2010) 

Public ISBD [article]  in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2519 - 2526 Titre : Zero vibration on–off position control of dual solenoid actuator Type de document : texte imprimé Auteurs : Yu, Lan, Auteur ; Chang, Timothy N., Auteur Article en page(s) : pp. 2519 - 2526 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Feedforward  control  Input  shaping  On-off  control  Push-pull  drive  Solenoid Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : Solenoids are low-cost high-speed nonlinear actuators commonly used in switching mode. This paper presents a dual-solenoid actuator system for high-speed positioning applications. A novel control method that combines on-off control and input shaping is used to obtain low-vibration smooth transients when compared with traditional proportional and integral control and on-off control. Simulation results and experimental data confirm that this dual-solenoid position actuator with the novel control method is effective and practical. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5332329 [article] Zero vibration on–off position control of dual solenoid actuator [texte imprimé] / Yu, Lan, Auteur ; Chang, Timothy N., Auteur . - pp. 2519 - 2526. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2519 - 2526 Mots-clés : Feedforward  control  Input  shaping  On-off  control  Push-pull  drive  Solenoid Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : Solenoids are low-cost high-speed nonlinear actuators commonly used in switching mode. This paper presents a dual-solenoid actuator system for high-speed positioning applications. A novel control method that combines on-off control and input shaping is used to obtain low-vibration smooth transients when compared with traditional proportional and integral control and on-off control. Simulation results and experimental data confirm that this dual-solenoid position actuator with the novel control method is effective and practical. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5332329

Networked control system / Gupta, Rachana Ashok in IEEE transactions on industrial electronics, Vol. 57 N° 7 (Juillet 2010) 

Public ISBD [article]  in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2527 - 2535 Titre : Networked control system : overview and research trends Type de document : texte imprimé Auteurs : Gupta, Rachana Ashok, Auteur ; Chow, Mo-Yuen, Auteur Article en page(s) : pp. 2527 - 2535 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Networked  control  system  (NCS)  Overview  Research  trends  Survey Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : Networked control systems (NCSs) have been one of the main research focuses in academia as well as in industry for many decades and have become a multidisciplinary area. With these growing research trends, it is important to consolidate the latest knowledge and information to keep up with the research needs. In this paper, the NCS and its different forms are introduced and discussed. The beginning of this paper discusses the history and evolution of NCSs. The next part of this paper focuses on different fields and research arenas such as networking technology, network delay, network resource allocation, scheduling, network security in real-time NCSs, integration of components on a network, fault tolerance, etc. A brief literature survey and possible future direction concerning each topic is included. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5313866 [article] Networked control system : overview and research trends [texte imprimé] / Gupta, Rachana Ashok, Auteur ; Chow, Mo-Yuen, Auteur . - pp. 2527 - 2535. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2527 - 2535 Mots-clés : Networked  control  system  (NCS)  Overview  Research  trends  Survey Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : Networked control systems (NCSs) have been one of the main research focuses in academia as well as in industry for many decades and have become a multidisciplinary area. With these growing research trends, it is important to consolidate the latest knowledge and information to keep up with the research needs. In this paper, the NCS and its different forms are introduced and discussed. The beginning of this paper discusses the history and evolution of NCSs. The next part of this paper focuses on different fields and research arenas such as networking technology, network delay, network resource allocation, scheduling, network security in real-time NCSs, integration of components on a network, fault tolerance, etc. A brief literature survey and possible future direction concerning each topic is included. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5313866

Identifier-based adaptive robust control for servomechanisms with improved transient performance / Zhang, Guozhu in IEEE transactions on industrial electronics, Vol. 57 N° 7 (Juillet 2010) 

Public ISBD [article]  in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2536 - 2547 Titre : Identifier-based adaptive robust control for servomechanisms with improved transient performance Type de document : texte imprimé Auteurs : Zhang, Guozhu, Auteur ; Chen, Jie, Auteur ; Li, Zhiping, Auteur Article en page(s) : pp. 2536 - 2547 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Adaptive  control  Identification  Robust  control  Servomechanism Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper focuses on the adaptive robust control (ARC) for servomechanisms whose dynamic models are subject to unknown parameters, disturbance, and parameter sudden changes. To improve the control performance of the traditional ARC, a novel identifier-based ARC (IFARC) scheme is proposed. In this scheme, an identifier is utilized to accelerate the parameter tuning process and to heighten the accuracy of parameter estimation. A switching logic component based on a given performance index is introduced to select the better parameter estimate vector from those provided by the identifier and the adaptation law. As a result, transient performance can be improved according to the certainty equivalence principle. In addition, the exact reconstruction of the unknown parameters and exponential decay of the tracking error can be achieved under certain conditions. The stability and performance of IFARC are theoretically analyzed. Finally, simulation results show that the IFARC can achieve favorable tracking performance. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5313865 [article] Identifier-based adaptive robust control for servomechanisms with improved transient performance [texte imprimé] / Zhang, Guozhu, Auteur ; Chen, Jie, Auteur ; Li, Zhiping, Auteur . - pp. 2536 - 2547. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2536 - 2547 Mots-clés : Adaptive  control  Identification  Robust  control  Servomechanism Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper focuses on the adaptive robust control (ARC) for servomechanisms whose dynamic models are subject to unknown parameters, disturbance, and parameter sudden changes. To improve the control performance of the traditional ARC, a novel identifier-based ARC (IFARC) scheme is proposed. In this scheme, an identifier is utilized to accelerate the parameter tuning process and to heighten the accuracy of parameter estimation. A switching logic component based on a given performance index is introduced to select the better parameter estimate vector from those provided by the identifier and the adaptation law. As a result, transient performance can be improved according to the certainty equivalence principle. In addition, the exact reconstruction of the unknown parameters and exponential decay of the tracking error can be achieved under certain conditions. The stability and performance of IFARC are theoretically analyzed. Finally, simulation results show that the IFARC can achieve favorable tracking performance. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5313865

Exemplaires

Bibliothèque Ecole Nationale Polytechnique d'Alger

Accueil

Se connecter

Météo

Adresse