计及励磁调节特性影响的双馈风力发电机组故障电流特性

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Abstract In case that the rotor of doubly-fed induction generator (DFIG) is still excited by AC/DC/AC converter during non-severe fault condition, the excitation and regulation characteristics of rotor side converter (RSC) have large influence on the fault current characteristics of DFIG. In this paper, the dynamic response of RSC is studied when the inner rotor current control loop is designed to be first order or second order system. Meanwhile, the simplified calculation models of rotor fault current are established. Based on it, the fault current of DFIG during non-severe fault condition is studied and the analytical expressions are obtained. Finally, simulation examples in PSCAD/EMTDC demonstrate the theoretical analysis results.

Key words： Non-severe fault condition doubly-fed induction generator (DFIG) excitation and regulation characteristics fault current characteristics

Received: 20 March 2013 Published: 27 June 2014

PACS:

TM315

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	Articles by authors
	Kong Xiangping
	Zhang Zhe
	Yin Xianggen
	He Maohui
	Wang Fei

Cite this article:

Kong Xiangping,Zhang Zhe,Yin Xianggen等. Fault Current Characteristics of DFIG Considering Excitation and Regulation Characteristics[J]. Transactions of China Electrotechnical Society, 2014, 29(4): 256-265.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2014/V29/I4/256

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