低压侧电流零纹波的高增益软开关双向变换器
Low voltage side current zero ripple bidirectional converter with high gain and soft-switching
陈嘉亮 1饶家齐 1田宇欣 1佘雨荷 1秦岭1
作者信息
- 1. 南通大学电气与自动化学院 南通 226019
- 折叠
摘要
提出了一种非隔离型双向DC-DC变换器,通过优化设计耦合电感实现了低压侧电流零纹波.该变换器还具有以下优点:电压增益较高(升压模式下G=(1+D)/(1-D));开关管数量少(3个),电压应力较低(约为高压侧电压的一半),且开关管均实现了零电压软开关;此外,其只需要一个磁芯,且输入输出端共地.对所提变换器的工作原理、稳态特性、低电压侧电流零纹波条件、软开关条件和参数设计方法进行了深入分析,并通过一台250 W/100 kHz的原理样机仿真验证了所提拓扑的可行性.
Abstract
A non-isolated bidirectional DC-DC converter is proposed in this paper,which realizes zero ripple of low voltage side current by optimizing the coupling inductor.The proposed converter also has the advantages of high voltage gain(G=(1+D)/(1-D)in boost mode),reduced switch(only three),lower voltage stress(about half of the high voltage side voltage),and zero-voltage-switching for all switches.In addition,it requires only one magnetic core,and the input and output sides share the common ground.The working principle,steady-state characteristics,conditions of low voltage side zero current ripple,soft switching conditions and parameter design methods of the proposed converter are depth analyzed,and then verified by a 250 W/100 kHz simulation prototype.
关键词
DC-DC变换器/高增益/双向/电流零纹波/软开关Key words
DC-DC converter/high voltage gain/bidirectional/zero current ripple/soft switching引用本文复制引用
出版年
2024
NETL
NSTL
万方数据