Documents disponibles écrits par cet auteur

A 40-pulse AC--DC converter fed vector-controlled induction motor drive / Singh, B. in IEEE transactions on energy conversion, Vol. 23 n°2 (Juin 2008) 

Public ISBD [article]  in IEEE transactions on energy conversion > Vol. 23 n°2 (Juin 2008) . - pp. 403 - 411 Titre : A 40-pulse AC--DC converter fed vector-controlled induction motor drive Type de document : texte imprimé Auteurs : Singh, B., Auteur ; Gairola, S., Auteur Année de publication : 2008 Article en page(s) : pp. 403 - 411 Note générale : Energy conversion Langues : Anglais (eng) Mots-clés : AC-DC  power  convertors;  autotransformers;  harmonic  distortion;  induction  motor  drives;  machine  vector  control;  rectifying  circuits Résumé : In this paper, a novel autotransformer for a 40-pulse ac-dc converter configuration is designed, modeled, simulated, and implemented to feed vector-controlled induction motor drive (VCIMD). The proposed converter consists of two paralleled ten-pulse ac-dc converters along with pulse doubling circuit at dc bus. Each ten-pulse ac-dc converter involves five-phase diode bridge rectifiers. It improves power quality at ac mains, and it meets IEEE-519 standard requirements at varying loads. A set of power quality indexes on input ac mains and dc bus for a VCIMD fed from 20-pulse and 6-pulse converters is also given to compare their performance. It is observed that input current total harmonic distortion (THD) of much less than 5% is possible with the proposed topology at varying loads. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=4459268&sortType%3Das [...] [article] A 40-pulse AC--DC converter fed vector-controlled induction motor drive [texte imprimé] / Singh, B., Auteur ; Gairola, S., Auteur . - 2008 . - pp. 403 - 411. Energy conversion Langues : Anglais (eng) in IEEE transactions on energy conversion > Vol. 23 n°2 (Juin 2008) . - pp. 403 - 411 Mots-clés : AC-DC  power  convertors;  autotransformers;  harmonic  distortion;  induction  motor  drives;  machine  vector  control;  rectifying  circuits Résumé : In this paper, a novel autotransformer for a 40-pulse ac-dc converter configuration is designed, modeled, simulated, and implemented to feed vector-controlled induction motor drive (VCIMD). The proposed converter consists of two paralleled ten-pulse ac-dc converters along with pulse doubling circuit at dc bus. Each ten-pulse ac-dc converter involves five-phase diode bridge rectifiers. It improves power quality at ac mains, and it meets IEEE-519 standard requirements at varying loads. A set of power quality indexes on input ac mains and dc bus for a VCIMD fed from 20-pulse and 6-pulse converters is also given to compare their performance. It is observed that input current total harmonic distortion (THD) of much less than 5% is possible with the proposed topology at varying loads. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=4459268&sortType%3Das [...]

Harmonics mitigation in LCI-fed synchronous motor drives / Singh, B. in IEEE transactions on energy conversion, Vol. 25 N° 2 (Juin 2010) 

Public ISBD [article]  in IEEE transactions on energy conversion > Vol. 25 N° 2 (Juin 2010) . - pp. 369 - 380 Titre : Harmonics mitigation in LCI-fed synchronous motor drives Type de document : texte imprimé Auteurs : Singh, B., Auteur ; Singh, S., Auteur ; Hemanth Chender, S.P., Auteur Année de publication : 2010 Article en page(s) : pp. 369 - 380 Note générale : energy conversion Langues : Anglais (eng) Mots-clés : AC-DC  power  convertors;  commutator  motors;  synchronous  motor  drives Résumé : A load-commutated inverter (LCI) fed synchronous motor (SM) is operated as an adjustable speed drive (ASD) in high-power applications. These drives are known as commutatorless motor (CLM) drives and posses many promising features like high efficiency, economic operation, and flexibility of control in high-power ratings. The CLM drives are used in compressors, blowers, fans, pumps, and mill drives for a range of industries as mining, water treatment plants, chemical, paper, textile, cement, rolling mills, and petrochemical plants. However, the power quality (PQ) problems at ac mains have been the concerns in these drives as the LCI has front-end thyristor converter injecting harmonics in the supply. This paper investigates various topologies for the mitigation of PQ problems in LCI-fed SM drives using multipulse ac-dc converters. A set of hybrid topologies is proposed, which use a combination of a passive filter with a multipulse converter to feed CLM. A basis for selection of a suitable ac-dc converter is presented for PQ improvement at the input mains of the LCI-fed SM drives. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5409650&sortType%3Das [...] [article] Harmonics mitigation in LCI-fed synchronous motor drives [texte imprimé] / Singh, B., Auteur ; Singh, S., Auteur ; Hemanth Chender, S.P., Auteur . - 2010 . - pp. 369 - 380. energy conversion Langues : Anglais (eng) in IEEE transactions on energy conversion > Vol. 25 N° 2 (Juin 2010) . - pp. 369 - 380 Mots-clés : AC-DC  power  convertors;  commutator  motors;  synchronous  motor  drives Résumé : A load-commutated inverter (LCI) fed synchronous motor (SM) is operated as an adjustable speed drive (ASD) in high-power applications. These drives are known as commutatorless motor (CLM) drives and posses many promising features like high efficiency, economic operation, and flexibility of control in high-power ratings. The CLM drives are used in compressors, blowers, fans, pumps, and mill drives for a range of industries as mining, water treatment plants, chemical, paper, textile, cement, rolling mills, and petrochemical plants. However, the power quality (PQ) problems at ac mains have been the concerns in these drives as the LCI has front-end thyristor converter injecting harmonics in the supply. This paper investigates various topologies for the mitigation of PQ problems in LCI-fed SM drives using multipulse ac-dc converters. A set of hybrid topologies is proposed, which use a combination of a passive filter with a multipulse converter to feed CLM. A basis for selection of a suitable ac-dc converter is presented for PQ improvement at the input mains of the LCI-fed SM drives. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5409650&sortType%3Das [...]

Power quality improvement in conventional electronic load controller for an isolated power generation / Singh, B. in IEEE transactions on energy conversion, Vol. 23 n°3 (Septembre 2008) 

Public ISBD [article]  in IEEE transactions on energy conversion > Vol. 23 n°3 (Septembre 2008) . - pp. 764 - 773 Titre : Power quality improvement in conventional electronic load controller for an isolated power generation Type de document : texte imprimé Auteurs : Singh, B., Auteur ; Kasal, G. K., Auteur ; Gairola, S., Auteur Année de publication : 2008 Article en page(s) : pp. 764 - 773 Note générale : Energy conversion Langues : Anglais (eng) Mots-clés : Asynchronous  generators;  hydroelectric  power;  power  generation  control;  power  station  load;  power  system  management;  rectifiers Résumé : This paper deals with the power quality improvement in a conventional electronic load controller (ELC) used for isolated pico-hydropower generation based on an asynchronous generator (AG). The conventional ELC is based on a six-pulse uncontrolled diode bridge rectifier with a chopper and an auxiliary load. It causes harmonic currents injection resulting distortion in the current and terminal voltage of the generator. The proposed ELC employs a 24-pulse rectifier with 14 diodes and a chopper. A polygon wound autotransformer with reduced kilovolts ampere rating for 24-pulse ac-dc converter is designed and developed for harmonic current reduction to meet the power quality requirements as prescribed by IEEE standard-519. The comparative study of two topologies, conventional ELC (six-pulse bridge-rectifier-based ELC) and proposed ELC (24-pulse bridge-rectifier-based ELC) is carried out in MATLAB using SIMULINK and Power System Blockset toolboxes. Experimental validation is carried out for both ELCs for regulating the voltage and frequency of an isolated AG driven by uncontrolled pico-hydroturbine. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=4554250&sortType%3Das [...] [article] Power quality improvement in conventional electronic load controller for an isolated power generation [texte imprimé] / Singh, B., Auteur ; Kasal, G. K., Auteur ; Gairola, S., Auteur . - 2008 . - pp. 764 - 773. Energy conversion Langues : Anglais (eng) in IEEE transactions on energy conversion > Vol. 23 n°3 (Septembre 2008) . - pp. 764 - 773 Mots-clés : Asynchronous  generators;  hydroelectric  power;  power  generation  control;  power  station  load;  power  system  management;  rectifiers Résumé : This paper deals with the power quality improvement in a conventional electronic load controller (ELC) used for isolated pico-hydropower generation based on an asynchronous generator (AG). The conventional ELC is based on a six-pulse uncontrolled diode bridge rectifier with a chopper and an auxiliary load. It causes harmonic currents injection resulting distortion in the current and terminal voltage of the generator. The proposed ELC employs a 24-pulse rectifier with 14 diodes and a chopper. A polygon wound autotransformer with reduced kilovolts ampere rating for 24-pulse ac-dc converter is designed and developed for harmonic current reduction to meet the power quality requirements as prescribed by IEEE standard-519. The comparative study of two topologies, conventional ELC (six-pulse bridge-rectifier-based ELC) and proposed ELC (24-pulse bridge-rectifier-based ELC) is carried out in MATLAB using SIMULINK and Power System Blockset toolboxes. Experimental validation is carried out for both ELCs for regulating the voltage and frequency of an isolated AG driven by uncontrolled pico-hydroturbine. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=4554250&sortType%3Das [...]

Voltage and frequency controller for a three-phase four-wire autonomous wind energy conversion system / Singh, B. in IEEE transactions on energy conversion, Vol. 23 n°2 (Juin 2008) 

Public ISBD [article]  in IEEE transactions on energy conversion > Vol. 23 n°2 (Juin 2008) . - pp. 509 - 518 Titre : Voltage and frequency controller for a three-phase four-wire autonomous wind energy conversion system Type de document : texte imprimé Auteurs : Singh, B., Auteur ; Kasal, G. K., Auteur Année de publication : 2008 Article en page(s) : pp. 509 - 518 Note générale : Energy conversion Langues : Anglais (eng) Mots-clés : PWM  power  convertors;  asynchronous  generators;  frequency  control;  harmonics  suppression;  voltage  regulators;  wind  power Résumé : This paper deals with control of voltage and frequency of an autonomous wind energy conversion system (AWECS) based on capacitor-excited asynchronous generator and feeding three-phase four-wire loads. The proposed controller consists of three single-phase insulated gate bipolar junction transistor (IGBT)-based voltage source converters (VSCs) and a battery at dc link. These three single-phase VSCs are connected to each phase of the generator through three single-phase transformers. The proposed controller is having bidirectional flow capability of active and reactive powers by which it controls the system voltage and frequency with variation of consumer loads and the speed of the wind. VSCs along with transformer function as a voltage regulator, a harmonic eliminator, a load balancer, and a neutral current compensator while the battery is used to control the active power flow which, in turn, maintains the constant system frequency. The complete electromechanical system is modeled and simulated in the MATLAB using the Simulink and the power system blockset (PSB) toolboxes. The simulated results are presented to demonstrate the capability of the proposed controller as a voltage and frequency regulator, harmonic eliminator, load balancer, and neutral current compensator for different electrical (varying consumer loads) and mechanical (varying wind speed) dynamic conditions in an autonomous wind energy conversion system. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=4505398&sortType%3Das [...] [article] Voltage and frequency controller for a three-phase four-wire autonomous wind energy conversion system [texte imprimé] / Singh, B., Auteur ; Kasal, G. K., Auteur . - 2008 . - pp. 509 - 518. Energy conversion Langues : Anglais (eng) in IEEE transactions on energy conversion > Vol. 23 n°2 (Juin 2008) . - pp. 509 - 518 Mots-clés : PWM  power  convertors;  asynchronous  generators;  frequency  control;  harmonics  suppression;  voltage  regulators;  wind  power Résumé : This paper deals with control of voltage and frequency of an autonomous wind energy conversion system (AWECS) based on capacitor-excited asynchronous generator and feeding three-phase four-wire loads. The proposed controller consists of three single-phase insulated gate bipolar junction transistor (IGBT)-based voltage source converters (VSCs) and a battery at dc link. These three single-phase VSCs are connected to each phase of the generator through three single-phase transformers. The proposed controller is having bidirectional flow capability of active and reactive powers by which it controls the system voltage and frequency with variation of consumer loads and the speed of the wind. VSCs along with transformer function as a voltage regulator, a harmonic eliminator, a load balancer, and a neutral current compensator while the battery is used to control the active power flow which, in turn, maintains the constant system frequency. The complete electromechanical system is modeled and simulated in the MATLAB using the Simulink and the power system blockset (PSB) toolboxes. The simulated results are presented to demonstrate the capability of the proposed controller as a voltage and frequency regulator, harmonic eliminator, load balancer, and neutral current compensator for different electrical (varying consumer loads) and mechanical (varying wind speed) dynamic conditions in an autonomous wind energy conversion system. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=4505398&sortType%3Das [...]