双馈感应风力发电机低电压穿越控制策略的理论分析与实验研究

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Abstract Based on an analysis of DFIG stator flux transient period during symmetric and asymmetric grid fault, its influence on DFIG rotor, the LVRT limiting condition using rotor-side converter (RSC) control strategy to achieve low voltage ride-through(LVRT) is found. A DFIG LVRT method combining the improved control strategy with hardware protect is studied when the limiting condition is not met. The method limits the stator’s and rotor’s over current, protects the rotor converter and provides power to the grid quickly during serious grid fault. A 3kW DFIG LVRT control experimental system is established. The experimental results prove that the LVRT control method of DFIG is effective.

Key words： Doubly fed induction generator(DFIG) low voltage ride through(LVRT) grid fault rotor side converter

Received: 02 November 2010 Published: 07 March 2014

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TM614

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	Articles by authors
	Yu Lan
	Chen Yuchen
	Chen Guocheng
	Wu Guoxiang

Cite this article:

Yu Lan,Chen Yuchen,Chen Guocheng等. A Low Voltage Ride-Through Control Strategy of Doubly Fed Induction Generator[J]. Transactions of China Electrotechnical Society, 2011, 26(7): 30-36.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2011/V26/I7/30

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