Documents disponibles écrits par cet auteur

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 [...]