NDLI: Modified DPC for DFIG based wind power generation under unbalanced grid-voltage

Content Provider	IEEE Xplore Digital Library
Author	Dan Sun Xiaoming Guo Lei Shang Yikang He
Copyright Year	2008
Description	Author affiliation: Country Sch. of Electr. Eng., Zhejiang Univ., Hangzhou (Dan Sun; Xiaoming Guo; Lei Shang; Yikang He)
Abstract	This paper presents a modified direct power control (DPC) strategy for a doubly fed induction generator (DFIG) based wind power generation system under unbalanced grid-voltage conditions. The strategy is based on the investigation of the mathematic model and the composition of the instantaneous active and reactive power outputted by DFIG. It is found that, by applying a notch filter of two times of the grid frequency, the proposed DPC strategy is capable of the unbalanced fault ride through operation. By compensating the errors caused by DFIG parameter mismatch, the control robustness of the proposed DPC scheme has been further enhanced. Simulation results verified that the proposed strategy is simple in control structure and have excellent dynamic performance for the reason of avoiding the computation of the negative sequence component current, and therefore, the corresponding current control loops are unnecessary.
Starting Page	2299
Ending Page	2304
File Size	677549
Page Count	6
File Format	PDF
ISBN	9781424438266
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-10-17
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	IEEE Consumer Electronics Society(CES)
Subject Keyword	Wind power generation Power control Induction generators Mathematics Mathematical model Power system modeling Reactive power Filters Frequency Error correction
Content Type	Text
Resource Type	Article

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