Direct active and reactive power regulation of DFIG using sliding-mode control approach / Jiabing Hu in IEEE transactions on energy conversion, Vol. 25, N° 4 (Décembre 2010)  

Public ISBD [article]  inIEEE transactions on energy conversion > Vol. 25, N° 4 (Décembre 2010) . - pp. 1028 - 1039 Titre : Direct active and reactive power regulation of DFIG using sliding-mode control approach Type de document : texte imprimé Auteurs : Jiabing Hu, Auteur ; Heng Nian, Auteur ; Hu, Bin, Auteur Année de publication : 2011 Article en page(s) : pp. 1028 - 1039 Note générale : energy conversion Langues : Anglais (eng) Mots-clés : Asynchronous generators  nonlinear control systems  power convertors  grids  harmonic filters  system interconnection  reactive control  rotors  table lookup  variable structure wind turbines Résumé : This paper presents a new direct active and reactive power control (DPC) of grid-connected doubly fed induction generator (DFIG)-based wind turbine systems. The proposed DPC strategy employs a nonlinear sliding-mode control scheme to directly calculate the required rotor control voltage so as to eliminate the instantaneous errors of active and reactive powers without involving any synchronous coordinate transformations. Thus, no extra current control loops are required, thereby simplifying the system design and enhancing the transient performance. Constant converter switching frequency is achieved by using space vector modulation, which eases the designs of the power converter and the ac harmonic filter. Simulation results on a 2-MW grid-connected DFIG system are provided and compared with those of classic voltage-oriented vector control (VC) and conventional lookup table (LUT) DPC. The proposed DPC provides enhanced transient performance similar to the LUT DPC and keeps the steady-state harmonic spectra at the same level as the VC strategy. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5484443&sortType%3Das [...] [article] Direct active and reactive power regulation of DFIG using sliding-mode control approach [texte imprimé] / Jiabing Hu, Auteur ; Heng Nian, Auteur ; Hu, Bin, Auteur . - 2011 . - pp. 1028 - 1039. energy conversion Langues : Anglais (eng) in IEEE transactions on energy conversion > Vol. 25, N° 4 (Décembre 2010) . - pp. 1028 - 1039 Mots-clés : Asynchronous generators  nonlinear control systems  power convertors  grids  harmonic filters  system interconnection  reactive control  rotors  table lookup  variable structure wind turbines Résumé : This paper presents a new direct active and reactive power control (DPC) of grid-connected doubly fed induction generator (DFIG)-based wind turbine systems. The proposed DPC strategy employs a nonlinear sliding-mode control scheme to directly calculate the required rotor control voltage so as to eliminate the instantaneous errors of active and reactive powers without involving any synchronous coordinate transformations. Thus, no extra current control loops are required, thereby simplifying the system design and enhancing the transient performance. Constant converter switching frequency is achieved by using space vector modulation, which eases the designs of the power converter and the ac harmonic filter. Simulation results on a 2-MW grid-connected DFIG system are provided and compared with those of classic voltage-oriented vector control (VC) and conventional lookup table (LUT) DPC. The proposed DPC provides enhanced transient performance similar to the LUT DPC and keeps the steady-state harmonic spectra at the same level as the VC strategy. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5484443&sortType%3Das [...]

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