Research on New Power Coordinated Control Strategy for Doubly Fed Wind Turbine

doi:10.3969/j.issn.1008-0198.2022.01.017

Abstract

Abstract: Aiming at the problem of voltage fluctuation at the parallel point caused by the gradual increase of wind power grid scale, this paper proposes a new power coordination control strategy considering the reactive power regulation ability of doubly-fed wind turbine (DFIG) itself, that is, according to the response time difference between DFIG and static synchronous compensator(STATCOM).The complementary empirical mode decomposition algorithm (CEEMD) is used to divide and reconstruct the reactive power regulation required by wind farm merging nodes into two frequency bands, which are used as the reference power of DFIG and STATCOM respectively to coordinate the two bands to suppress the voltage fluctuation of the merging nodes. Based on this, the Matalb simulation model is established to verify the effectiveness of the proposed strategy.

Key words: doubly-fed wind turbine(DFIG), STATCOM, power coordination control, CEEMD

CLC Number:

TM712.2

WANG Xiaojun, DUAN Shengqiang, CHEN Wenkui, Ayisulu ENIWAL, ZHAO Yanrong, CHEN Xu. Research on New Power Coordinated Control Strategy for Doubly Fed Wind Turbine[J]. Hunan Electric Power, 2022, 42(1): 89-93.

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