Documents disponibles écrits par cet auteur

Grid synchronization of doubly-fed induction generator using integral variable structure control / Si Zhe, Chen in IEEE transactions on energy conversion, Vol. 24 N° 4 (Décembre 2009) 

Public ISBD [article]  in IEEE transactions on energy conversion > Vol. 24 N° 4 (Décembre 2009) . - pp. 875 - 883 Titre : Grid synchronization of doubly-fed induction generator using integral variable structure control Type de document : texte imprimé Auteurs : Si Zhe, Chen, Auteur ; Cheung, Norbert C., Auteur ; Ka Chung, Wong, Auteur Année de publication : 2010 Article en page(s) : pp. 875 - 883 Note générale : energy conversion Langues : Anglais (eng) Mots-clés : Asynchronous  generators;  machine  control;  power  conversion;  variable  structure  systems;  voltage  control;  wind  power Résumé : This paper proposes a novel direct voltage control scheme, using integral variable structure control to synchronize a doubly fed induction generator (DFIG)-based wind energy conversion system (WECS) to the grid. The proposed scheme directly controls the stator terminal voltage of the DFIG to track the grid voltage without current control loop; hence, the structure of controller is simplified. The control scheme includes parametric uncertainty and external disturbances into the formed design procedure; hence, the proposed scheme has better robustness than existing synchronization methods. Both computer simulation and hardware implementation results are presented to demonstrate the advantages of the proposed scheme. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5291766&sortType%3Das [...] [article] Grid synchronization of doubly-fed induction generator using integral variable structure control [texte imprimé] / Si Zhe, Chen, Auteur ; Cheung, Norbert C., Auteur ; Ka Chung, Wong, Auteur . - 2010 . - pp. 875 - 883. energy conversion Langues : Anglais (eng) in IEEE transactions on energy conversion > Vol. 24 N° 4 (Décembre 2009) . - pp. 875 - 883 Mots-clés : Asynchronous  generators;  machine  control;  power  conversion;  variable  structure  systems;  voltage  control;  wind  power Résumé : This paper proposes a novel direct voltage control scheme, using integral variable structure control to synchronize a doubly fed induction generator (DFIG)-based wind energy conversion system (WECS) to the grid. The proposed scheme directly controls the stator terminal voltage of the DFIG to track the grid voltage without current control loop; hence, the structure of controller is simplified. The control scheme includes parametric uncertainty and external disturbances into the formed design procedure; hence, the proposed scheme has better robustness than existing synchronization methods. Both computer simulation and hardware implementation results are presented to demonstrate the advantages of the proposed scheme. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5291766&sortType%3Das [...]

Integral sliding-mode direct torque control of doubly-fed induction generators under unbalanced grid voltage / Si Zhe, Chen 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. 356 - 368 Titre : Integral sliding-mode direct torque control of doubly-fed induction generators under unbalanced grid voltage Type de document : texte imprimé Auteurs : Si Zhe, Chen, Auteur ; Cheung, N. C., Auteur ; Ka Chung, Wong, Auteur Année de publication : 2010 Article en page(s) : pp. 356 - 368 Note générale : energy conversion Langues : Anglais (eng) Mots-clés : asynchronous  generators;  machine  control;  power  grids;  reactive  power;  torque  control;  variable  structure  systems Résumé : An integral sliding-mode direct torque control (ISM-DTC) scheme with space-vector modulation for wind-energy conversion systems based on doubly-fed induction generators (DFIGs) under unbalanced grid voltage is proposed. The torque and power pulsations at twice the grid frequency caused by unbalanced grid voltage can be minimized by the proposed ISM-DTC scheme. Compared with existing control schemes of DFIGs under unbalanced grid voltage, the parametric uncertainties are included into the design procedure of sliding-mode controller, which guarantees the robustness of the controller. Because the torque and reactive power are directly controlled by the rotor voltage, the measurement, coordinate transformation, and symmetrical component extraction of rotor current are eliminated, which simplifies the structure of the controller. Simulation and hardware implementation results validate the effect and parametric robustness of the proposed ISM-DTC scheme. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5353677&sortType%3Das [...] [article] Integral sliding-mode direct torque control of doubly-fed induction generators under unbalanced grid voltage [texte imprimé] / Si Zhe, Chen, Auteur ; Cheung, N. C., Auteur ; Ka Chung, Wong, Auteur . - 2010 . - pp. 356 - 368. energy conversion Langues : Anglais (eng) in IEEE transactions on energy conversion > Vol. 25 N° 2 (Juin 2010) . - pp. 356 - 368 Mots-clés : asynchronous  generators;  machine  control;  power  grids;  reactive  power;  torque  control;  variable  structure  systems Résumé : An integral sliding-mode direct torque control (ISM-DTC) scheme with space-vector modulation for wind-energy conversion systems based on doubly-fed induction generators (DFIGs) under unbalanced grid voltage is proposed. The torque and power pulsations at twice the grid frequency caused by unbalanced grid voltage can be minimized by the proposed ISM-DTC scheme. Compared with existing control schemes of DFIGs under unbalanced grid voltage, the parametric uncertainties are included into the design procedure of sliding-mode controller, which guarantees the robustness of the controller. Because the torque and reactive power are directly controlled by the rotor voltage, the measurement, coordinate transformation, and symmetrical component extraction of rotor current are eliminated, which simplifies the structure of the controller. Simulation and hardware implementation results validate the effect and parametric robustness of the proposed ISM-DTC scheme. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5353677&sortType%3Das [...]