Documents disponibles écrits par cet auteur

Predictive current control of doubly fed induction generators / Xu, Lie in IEEE transactions on industrial electronics, Vol. 56 N° 10 (Octobre 2009) 

Public ISBD [article]  in IEEE transactions on industrial electronics > Vol. 56 N° 10 (Octobre 2009) . - pp. 4143 - 4153 Titre : Predictive current control of doubly fed induction generators Type de document : texte imprimé Auteurs : Xu, Lie, Auteur ; Zhi, Dawei, Auteur ; Williams, Barry W., Auteur Article en page(s) : pp. 4143 - 4153 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Doubly  fed  induction  generators  (DFIGs)  Predictive  current  control  (PCC)  Voltage-source  converters  (VSCs) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper presents a predictive current control (PCC) strategy for doubly fed induction generators (DFIGs). The method predicts the DFIG's rotor current variations in the synchronous reference frame fixed to the stator flux within a fixed sampling period. This is then used to directly calculate the required rotor voltage to eliminate the current errors at the end of the following sampling period. Space vector modulation is used to generate the required switching pulses within the fixed sampling period. The impact of sampling delay on the accuracy of the sampled rotor current is analyzed and detailed compensation methods are proposed to improve the current control accuracy and system stability. Experimental results for a 1.5-kW DFIG system illustrate the effectiveness and robustness of the proposed control strategy during rotor current steps and rotating speed variation. Tests during negative-sequence current injection further demonstrate the excellent dynamic performance of the proposed PCC method. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=4808115 [article] Predictive current control of doubly fed induction generators [texte imprimé] / Xu, Lie, Auteur ; Zhi, Dawei, Auteur ; Williams, Barry W., Auteur . - pp. 4143 - 4153. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 56 N° 10 (Octobre 2009) . - pp. 4143 - 4153 Mots-clés : Doubly  fed  induction  generators  (DFIGs)  Predictive  current  control  (PCC)  Voltage-source  converters  (VSCs) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper presents a predictive current control (PCC) strategy for doubly fed induction generators (DFIGs). The method predicts the DFIG's rotor current variations in the synchronous reference frame fixed to the stator flux within a fixed sampling period. This is then used to directly calculate the required rotor voltage to eliminate the current errors at the end of the following sampling period. Space vector modulation is used to generate the required switching pulses within the fixed sampling period. The impact of sampling delay on the accuracy of the sampled rotor current is analyzed and detailed compensation methods are proposed to improve the current control accuracy and system stability. Experimental results for a 1.5-kW DFIG system illustrate the effectiveness and robustness of the proposed control strategy during rotor current steps and rotating speed variation. Tests during negative-sequence current injection further demonstrate the excellent dynamic performance of the proposed PCC method. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=4808115

Steady-state performance and stability analysis of mixed pole machines with electromechanical torque and rotor electric power to a shaft-mounted electrical load / Abdel-Khalik, Ayman S. in IEEE transactions on industrial electronics, Vol. 57 N° 1 (Janvier 2010) 

Public ISBD [article]  in IEEE transactions on industrial electronics > Vol. 57 N° 1 (Janvier 2010) . - pp. 22 - 34 Titre : Steady-state performance and stability analysis of mixed pole machines with electromechanical torque and rotor electric power to a shaft-mounted electrical load Type de document : texte imprimé Auteurs : Abdel-Khalik, Ayman S., Auteur ; Masoud, Mahmoud I., Auteur ; Williams, Barry W., Auteur Article en page(s) : pp. 22 - 34 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Brushless  doubly  fed  Brushless  reluctance  Decoupled  control  Dual  stator  Mixed  pole  machine  (MPM)  Rotor  electric  power  Self-cascaded  Shaft-mounted  electric  load  Split  wound  Stability  analysis  Steady  state Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper presents the steady-state model, performance, and stability analysis of a mixed pole machine with a new operational mode which provides a rotor torque and an n -phase rotor electrical output power to a shaft-mounted rotating electrical load. The machine operated under this mode can be used in applications that require contactless power, such as in robotics, or applications that require independent control of both rotor torque and rotor electric power, such as for contactless rotational antennas and turret systems. The performance assessment includes electromagnetic torque, electrical efficiency, mechanical efficiency, and total efficiency based on both simulation and experimentation. The effect of electrical loading and stator voltage on both rotor torque and rotor electric power is also considered. The machine steady-state stability is introduced by plotting the machine operating characteristics that determine all stable operating regions of the machine under the proposed mode of operation. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5159378 [article] Steady-state performance and stability analysis of mixed pole machines with electromechanical torque and rotor electric power to a shaft-mounted electrical load [texte imprimé] / Abdel-Khalik, Ayman S., Auteur ; Masoud, Mahmoud I., Auteur ; Williams, Barry W., Auteur . - pp. 22 - 34. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 1 (Janvier 2010) . - pp. 22 - 34 Mots-clés : Brushless  doubly  fed  Brushless  reluctance  Decoupled  control  Dual  stator  Mixed  pole  machine  (MPM)  Rotor  electric  power  Self-cascaded  Shaft-mounted  electric  load  Split  wound  Stability  analysis  Steady  state Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper presents the steady-state model, performance, and stability analysis of a mixed pole machine with a new operational mode which provides a rotor torque and an n -phase rotor electrical output power to a shaft-mounted rotating electrical load. The machine operated under this mode can be used in applications that require contactless power, such as in robotics, or applications that require independent control of both rotor torque and rotor electric power, such as for contactless rotational antennas and turret systems. The performance assessment includes electromagnetic torque, electrical efficiency, mechanical efficiency, and total efficiency based on both simulation and experimentation. The effect of electrical loading and stator voltage on both rotor torque and rotor electric power is also considered. The machine steady-state stability is introduced by plotting the machine operating characteristics that determine all stable operating regions of the machine under the proposed mode of operation. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5159378