不平衡电网电压下永磁直驱风电机组的运行与控制

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Abstract

Under the unbalanced grid voltage condition, the performance characteristics of permanent magnet direct-drive wind turbine are analyzed. A control strategy of grid side converter in positive-sequence synchronous rotating frame is proposed. This strategy can control dq axis current by proportional integral resonant controller while it gets current reference values of different control objectives. The control objectives can be realized by restraining double frequency fluctuations of the active power, or restraining double frequency fluctuations of the reactive power, or restraining the active and reactive power fluctuations at the same time. Matlab simulation results show that the proposed control strategy can achieve control objectives effectively.

Key words： wind power generation directly-driven unbalanced grid voltage proportional- integral-resonant

Published: 26 October 2016

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	Tu Juan
	Tang Ningping

Cite this article:

Tu Juan,Tang Ningping. Operation and Control of Permanent Magnet Direct-Driven Wind Turbine under Unbalanced Grid Voltage[J]. Electrical Engineering, 2016, 17(10): 11-16.

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http://dqjs.cesmedia.cn/EN/Y2016/V17/I10/11

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