Medium-voltage multilevel converters—state of the art, challenges, and requirements in industrial applications / Abu-Rub, Haitham in IEEE transactions on industrial electronics, Vol. 57 N° 8 (Août 2010)  

Public ISBD [article]  inIEEE transactions on industrial electronics > Vol. 57 N° 8 (Août 2010) . - pp. 2581 - 2596 Titre : Medium-voltage multilevel converters—state of the art, challenges, and requirements in industrial applications Type de document : texte imprimé Auteurs : Abu-Rub, Haitham, Auteur ; Holtz, Joachim, Auteur ; Rodriguez, José, Auteur Année de publication : 2011 Article en page(s) : pp. 2581 - 2596 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Dual multilevel inverter (MLI) Low switching frequency Medium-voltage drives Multilevel inverters Neutral-point-clamped Synchronous optimal PWM Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper gives an overview of medium-voltage (MV) multilevel converters with a focus on achieving minimum harmonic distortion and high efficiency at low switching frequency operation. Increasing the power rating by minimizing switching frequency while still maintaining reasonable power quality is an important requirement and a persistent challenge for the industry. Existing solutions are discussed and analyzed based on their topologies, limitations, and control techniques. As a preferred option for future research and application, an inverter configuration based on three-level building blocks to generate five-level voltage waveforms is suggested. This paper shows that such an inverter may be operated at a very low switching frequency to achieve minimum on-state and dynamic device losses for highly efficient MV drive applications while maintaining low harmonic distortion. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5446354 [article] Medium-voltage multilevel converters—state of the art, challenges, and requirements in industrial applications [texte imprimé] / Abu-Rub, Haitham, Auteur ; Holtz, Joachim, Auteur ; Rodriguez, José, Auteur . - 2011 . - pp. 2581 - 2596. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 8 (Août 2010) . - pp. 2581 - 2596 Mots-clés : Dual multilevel inverter (MLI) Low switching frequency Medium-voltage drives Multilevel inverters Neutral-point-clamped Synchronous optimal PWM Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper gives an overview of medium-voltage (MV) multilevel converters with a focus on achieving minimum harmonic distortion and high efficiency at low switching frequency operation. Increasing the power rating by minimizing switching frequency while still maintaining reasonable power quality is an important requirement and a persistent challenge for the industry. Existing solutions are discussed and analyzed based on their topologies, limitations, and control techniques. As a preferred option for future research and application, an inverter configuration based on three-level building blocks to generate five-level voltage waveforms is suggested. This paper shows that such an inverter may be operated at a very low switching frequency to achieve minimum on-state and dynamic device losses for highly efficient MV drive applications while maintaining low harmonic distortion. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5446354

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Speed and load torque observer application in high-speed train electric drive / Guzinski, Jaroslaw in IEEE transactions on industrial electronics, Vol. 57 N° 2 (Fevrier 2010)  

Public ISBD [article]  inIEEE transactions on industrial electronics > Vol. 57 N° 2 (Fevrier 2010) . - pp. 565 - 574 Titre : Speed and load torque observer application in high-speed train electric drive Type de document : texte imprimé Auteurs : Guzinski, Jaroslaw, Auteur ; Abu-Rub, Haitham, Auteur ; Diguet, Marc, Auteur Article en page(s) : pp. 565 - 574 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Diagnostics Induction motor Observers Rail vehicle Sensorless control Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper presents an application of induction motor mechanical speed and load torque observers in high-speed train drives. The observers are applied for a 1.2-MW electric drive with an induction motor. The goal of using such observers is to utilize computed variables for diagnostic purposes of speed sensors and torque transmission system. The concept of diagnostic system is presented in this paper, and proper criteria are proposed. The suggested system is designed to work without a speed sensor in the case of existing sensor faults. Monitored motor load torque is used to limit the maximum motor torque in the case of existing problems in the gearbox. The results of simulation and experimental investigations for a 1.2-MW induction motor drive are presented. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5210157 [article] Speed and load torque observer application in high-speed train electric drive [texte imprimé] / Guzinski, Jaroslaw, Auteur ; Abu-Rub, Haitham, Auteur ; Diguet, Marc, Auteur . - pp. 565 - 574. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 2 (Fevrier 2010) . - pp. 565 - 574 Mots-clés : Diagnostics Induction motor Observers Rail vehicle Sensorless control Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper presents an application of induction motor mechanical speed and load torque observers in high-speed train drives. The observers are applied for a 1.2-MW electric drive with an induction motor. The goal of using such observers is to utilize computed variables for diagnostic purposes of speed sensors and torque transmission system. The concept of diagnostic system is presented in this paper, and proper criteria are proposed. The suggested system is designed to work without a speed sensor in the case of existing sensor faults. Monitored motor load torque is used to limit the maximum motor torque in the case of existing problems in the gearbox. The results of simulation and experimental investigations for a 1.2-MW induction motor drive are presented. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5210157

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