所属单位：自动化学院
发表刊物：Zhongguo Dianji Gongcheng Xuebao
摘要：One zero voltage switch (ZVS) push-pull high frequency link DC/AC converter with voltage clamping is proposed. Firstly, the evolution of the proposed DC/AC converter is presented. Then, the switching strategy is proposed and the steady working principle is analyzed in detail. The average model of the proposed converter is discussed by using the state-spacing- averaging approach. By contrast, it is found that the proposed converter and the phase-shift full-bridge DC/AC converter have similar characteristics. Switches S1, S2can realize ZVS turn-on easily and the auxiliary switch S3can achieve ZVS turn-on under enough energy stored in leakage inductor. Meanwhile, the voltage of S3can be clamped at Uinwith a clamp diode. In addition, the cycloconverter can also achieve ZVS commutation easily. In addition, the proposed topology solves the problem of hard-switching that resulting in high switching losses. Finally, one prototype of 500VA/ 48VDC/110V/50Hz AC is developed and the test results show that the theoretical analyses and principle are correct. The efficiency of the prototype can reach 91.5%. © 2017 Chin. Soc. for Elec. Eng.
ISSN号：0258-8013
是否译文：否
发表时间：2017-03-20
合写作者：Wu, Qunfang,Xu, Jialin,肖岚,Yuan, Yisheng
通讯作者：Wu, Qunfang,王勤
发表时间：2017-03-20