并联式绕组开放式永磁同步发电机系统改进电流控制策略

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Abstract In order to overcome the difficulties of narrow speed range and poor load voltage regulation,a novel parallel-connected open-winding topology of permanent magnet synchronous generator system is proposed.Due to the inherent zero-sequence current and harmonics problems for the novel topology,the operation principle of the new system and the mechanism of generating the zero-sequence current are analyzed in detail.Then,an improved current control method is proposed by compensating the offset voltage of the rectifier connected to the open-end windings to suppress the output ripple of the proportional-integral (PI) regulator.In this way,the current harmonics of the proposed generation system can be reduced.Finally,the simulation and experiment results verify that the proposed current control method has better performance comparing to traditional approaches.

Key words： Parallel-connected open-winding permanent magnet synchronous generator zero-sequence current harmonics problems current control method

Received: 10 March 2015 Published: 07 July 2016

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TM341

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	Wei Jiadan
	He Jian
	Zheng Qingqing
	Zhou Bo

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Wei Jiadan,He Jian,Zheng Qingqing等. Improved Current Control Method for Parallel Connected Open-Winding Permanent Magnet Synchronous Generator System[J]. Transactions of China Electrotechnical Society, 2016, 31(9): 146-155.

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https://dgjsxb.ces-transaction.com/EN/ OR https://dgjsxb.ces-transaction.com/EN/Y2016/V31/I9/146

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