基于桥臂电路的能量有源回馈吸收单元研究

doi:10.19595/j.cnki.1000-6753.tces.L70481

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Abstract An energy active recovery snubber(EARS)for Bridge Legs is proposed to achieve soft-switching and avoid circulating current in this paper.For this snubber,both zero-current turn-on and zero-voltage turn-off can be guaranteed,thus the switching loss is reduced.The energy stored in the snubber capacitor can be regenerated to the power supply through the energy active recovery circuit.Moreover,the circulating current can be eliminated compared with the conventional energy passive recovery circuit.The control strategy of the auxiliary active switch is very simple and is independent of the main switch making the system more reliable and applicable.Finally,the validity and superiority of this energy active recovery snubber are verified experimentally by an 1 kW prototype.

Key words： Lossless snubber energy active recovery soft-switching circulating current switching loss

Received: 20 August 2016 Published: 25 October 2017

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TM464

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	Zhang Jiepin
	Trillion Q Zheng
	ZhangZhi
	Yang Xiaofeng
	Wang Beibei

Cite this article:

Zhang Jiepin,Trillion Q Zheng,ZhangZhi等. Research on an Energy Active Recovery Snubber for Bridge Legs[J]. Transactions of China Electrotechnical Society, 2017, 32(19): 141-152.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.L70481 OR https://dgjsxb.ces-transaction.com/EN/Y2017/V32/I19/141

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