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隔离式双向全桥DC_DC变换器的功率控制特性比较与分析.pdf

发布:2017-05-27约2.74万字共9页下载文档
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2013 10 Vol.28 No. 10 28 10 TRANSACTIONS OF CHINA ELECTROTECHNICAL SOCIETY Oct. 2013 DC-DC 1 1 2 1. 100044 2. ( ) 100190 DC-DC DC-DC DC-DC / LC DC-DC DC-DC DC-DC DC-DC TM464 Comparison and Analysis of Power Control Characteristic for Isolated Bidirectional Full-Bridge DC-DC Converter Wu Lin1 Liu Zhigang 1 Hong Xiang2 1. Beijing Jiaotong University Beijing 100044 China 2. Key Laboratory of Power Electronics and Power Drives Institute of Electrical Engineering Chinese Academy of Sciences Beijing 100190 China Abstract For the different characteristics of non-resonant and resonant isolated bidirectional full bridge DC-DC converter, a unified expression of power transmissions is derived from the two DC-DC converters. The power transfer characteristics could be unified described through the power expression. The problem of isolated bidirectional DC-DC converter is that the switching loss increases and the converter efficiency declines with the forced turn-on or turn-off of switch devices in high frequency situation. In this paper, to solve this problem, an isolated LC series resonant transformer full bridge DC-DC converter is taken as research object, a phase-shift control strategy which could realize zero voltage turn-on and decrease th
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