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.
张捷频,郑琼林,张智,杨晓峰,王蓓蓓. 基于桥臂电路的能量有源回馈吸收单元研究[J]. 电工技术学报, 2017, 32(19): 141-152.
Zhang Jiepin , Trillion Q Zheng, ZhangZhi ，Yang Xiaofeng, Wang Beibei. Research on an Energy Active Recovery Snubber for Bridge Legs. Transactions of China Electrotechnical Society, 2017, 32(19): 141-152.
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2017, Vol. 32 
