电流型PWM整流器的不平衡控制

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Abstract Under unbalanced supply conditions, when the three-phase current-source rectifier (CSR) is used with the normal controllers, unbalanced input voltages cause abnormal even harmonics at the DC output and odd harmonics in the input currents, which worsen the performance of the CSR. In this paper, instantaneous active power balance equations at CSR AC side are deduced firstly, and then a new current-conference calculation scheme of three-phase CSR under unbalanced supply conditions is proposed, which can not only eliminate the harmonics in the DC current, but also achieve sinusoidal input current and controllable power factor. Furthermore, a novel current controller based on sliding-mode control in stationary frame is proposed, which achieves high performance current tracking. The effectiveness of the proposed unbalanced correction scheme and the current controller are validated through simulation results.

Key words： Current-source PWM rectifier unbalanced instantaneous power sliding-mode control

Received: 22 April 2009 Published: 04 March 2014

PACS:

TM461

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	Articles by authors
	Li Heming
	Zhu Xiaorong
	Shi Xinchun
	Peng Yonglong

Cite this article:

Li Heming,Zhu Xiaorong,Shi Xinchun等. A Control Scheme of Current-Source PWM Rectifier Under Unbalanced Supply Conditions[J]. Transactions of China Electrotechnical Society, 2010, 25(7): 85-92.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2010/V25/I7/85

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