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 [...]

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 [...]