A Multi Resonant Bidirectional DC-DC Converter

被引：0
|
作者：
Wang P. [1 ]
Chen B. [1 ]
Wang Y. [1 ]
Zhang S. [2 ]
Yang L. [3 ]
机构：
[1] Key Laboratory of Smart Grid of Ministry of Education, Tianjin University, Tianjin
[2] Beijing Dynamic Power Co. Ltd, Beijing
[3] National Electric Power Dispatching and Control Center, State Grid Corporation of China, Beijing
来源：
Diangong Jishu Xuebao/Transactions of China Electrotechnical Society | 2019年 / 34卷 / 08期
关键词：
DC-DC converter; Loss analysis; Soft-switching; Voltage gain;
D O I：
10.19595/j.cnki.1000-6753.tces.L80168
中图分类号：
学科分类号：
摘要：
A novel high conversion ratio bidirectional CDT-LC resonant DC-DC converter is proposed in this paper. The new converter not only maintains the good characteristic of LLC for zero voltage switching (ZVS) on the high voltage side (HVS) and zero current switching (ZCS) on the low voltage side, but also harvests a good gain feature. The converter has broadened voltage gain range with high efficiency. Besides, the operating principles and feature analysis of the converter are given for both step-up and step-down modes. Also, a loss breakdown for the proposed converter and a comparison between SiC and Si devices are given. At last, a 2.5kW prototype is established to verify the performance of the CDT-LC converter. The highest efficiency reaches 97%. © 2019, Electrical Technology Press Co. Ltd. All right reserved.
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页码：1667 / 1676
页数：9
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