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基于双重移相控制的双有源桥DC-DC变换器的软开关

, PP. 106-113

Keywords: 双有源桥直流变换器,双重移相控制,软开关,死区时间,效率

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Abstract:

通过分析双重移相控制下双有源桥DC-DC变换器的工作模式与各桥臂IGBT实现软开关的约束条件,得出了满足软开关条件的高频变压器漏感参数设计方法与死区时间限制条件;根据变换器稳态运行各阶段电路状态数学模型的分析,实现了通过对电路参数的优化设计降低变换器开关损耗,从而提高双有源桥直流变换器的效率.最后,根据理论推导结果设计变压器漏感并试验,试验结果表明所提出的设计方法对增加软开关实现范围和提高变换器效率的有效性.

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