利用虚拟阻抗改善电励磁同步发电机弱磁控制性能

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Abstract In order to overcome the stator overvoltage of electricity excitation direct-driven wind power generator in case of short-term overspeed, this paper studies the flux weakening control range of electrically excited synchronous generator (EESG). Flux weakening control can be obtained by reducing the rotor side excitation current, but the response is too slow because of the large rotor side inductance. This paper proposes a method of using the virtual impedance in the rotor side control system to reduce the inductance of the system. Simulation and experiment results show the flux weakening control of EESG based on virtual inductance has good dynamic response.

Key words： Virtual impedance flux weakening control electrically excited synchronous generator wind power generation system

Received: 27 December 2013 Published: 30 November 2015

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TM315

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	Articles by authors
	Zhao Xin
	Wu Xuezhi
	Li Geliang
	Tong Yibin

Cite this article:

Zhao Xin,Wu Xuezhi,Li Geliang等. Improving the Flux Weakening Control Performance of Electrically Excited Synchronous Generators Based on Virtual Impedance[J]. Transactions of China Electrotechnical Society, 2015, 30(22): 49-56.

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https://dgjsxb.ces-transaction.com/EN/ OR https://dgjsxb.ces-transaction.com/EN/Y2015/V30/I22/49

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