一种可调直流侧电压的串联有源交流电压质量调节器

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Abstract In the paper, a topology of an active voltage quality regulator (AVQR) with variable DC-link voltage is proposed in which a diode-rectifier is replaced by a thyristor-rectifier. The principle and control strategy of the AVQR are presented subsequently. The validity and effectiveness of the proposed topology and control algorithm are verified by simulation and experimental results. In an undervoltage case, under the same supply voltage and load conditions, the efficiency increases 7.0% from 89.1% of uncontrolled dc-link voltage to 96.1% of variable DC-link voltage on a 2kVA prototype, and the efficiency increases more significantly in an overvoltage case.

Key words： Active voltage quality regulator (AVQR) transformerless power quality variable DC-link voltage efficiency

Received: 12 January 2009 Published: 04 March 2014

PACS:	TM761
	TM464

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	Articles by authors
	Xiao Guochun
	Hu Zhiliang
	Zhang Lei
	Wang Zhaoan

Cite this article:

Xiao Guochun,Hu Zhiliang,Zhang Lei等. An Active Voltage Quality Regulator With Variable DC-Link Voltage[J]. Transactions of China Electrotechnical Society, 2010, 25(10): 176-182.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2010/V25/I10/176

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