一种消除双馈电机转矩脉动的磁场重构方法

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Abstract System unbalance and system harmonics will deteriorate the performance of doubly fed induction generator(DFIG) in wind power by introducing unwanted torque harmonics. From the electromagnetic point of view, the paper presents a novel field reconstruction method which can actively mitigate the undesirable torque ripple by choosing the optimized rotor current. First, this paper describes the disadvantage of the torque ripple, and the traditional solutions to the problem. The mechanism of effects of voltage unbalance and system harmonics on the performance of DFIG is analyzed. The paper focuses on the principle of the magnetic field reconstruction method. The optimization process of the rotor current is proposed finally.

Key words： DFIG field reconstruction method voltage unbalance and voltage harmonics torque ripple flux density

Received: 02 November 2010 Published: 07 March 2014

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TM351

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	Li Yaxi
	Zhu Feng
	Zhu Xiaoguang
	Xu Honghua

Cite this article:

Li Yaxi,Zhu Feng,Zhu Xiaoguang等. A Field Reconstruction Method for Elimination of Torque Ripple in Doubly Fed Induction Generators[J]. Transactions of China Electrotechnical Society, 2011, 26(7): 161-166.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2011/V26/I7/161

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