一种适用于新能源并网的谐振升压变换器

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Abstract Due to soft-switching for switching devices, resonant converters are suitable for high-power applications. This paper proposes a resonant converter which is suitable for grid-connected renewable energy sources. The converter can achieve high voltage-gain using LC parallel resonant tank. It has the features such as zero-voltage-switching (ZVS) turn-on, nearly ZVS turn-off, and zero-current- switching (ZCS) turn-off of rectifier diode. In addition, compared with the conventional resonant converter, the switching frequency variation of the proposed resonant converter is smaller over the entire load range. The operation principle of the converter and the selection of the resonant parameters are presented in the paper. A 1kW prototype is built in the lab to verify the effectiveness of the converter.

Key words： Resonant converter voltage step-up renewable energy source soft switching

Received: 08 April 2014 Published: 28 April 2016

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TM46

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	Articles by authors
	Chen Wu
	Wu Xiaogang
	Jiang Wei
	Hu Renjie

Cite this article:

Chen Wu,Wu Xiaogang,Jiang Wei等. A Step-Up Resonant Converter for Grid-Connected Renewable Energy Sources[J]. Transactions of China Electrotechnical Society, 2016, 31(8): 27-33.

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https://dgjsxb.ces-transaction.com/EN/ OR https://dgjsxb.ces-transaction.com/EN/Y2016/V31/I8/27

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