一种软开关推挽变换器最优谐振电感设计方法  

A Method of Optimal Resonant Inductance Design Based on Soft Switching Push-pull Converter

作　　者：沈璐璐[1] 王马哲 常天豪 安少亮[2] SHEN Lu-lu;WANG Ma-zhe;CHANG Tian-hao;AN Shao-liang(Shaanxi Energy Institute College,Xianyang 712000,China;不详)

机构地区：[1]陕西能源职业技术学院,人文与教育学院,陕西咸阳712000 [2]西安理工大学,电气工程学院,陕西西安710054

出　　处：《电力电子技术》2024年第3期49-51,共3页Power Electronics

摘　　要：针对储能系统应用,基于推挽DC/DC谐振变换器,提出了一种新型谐振电感设计方法,解决了采用低压电池供电的推挽升压变换器存在输入输出增益比和效率不能兼顾的问题,提高了推挽变换器的整机效率。介绍了软开关推挽变换器基本原理,分析了变换器的正反向增益特性,计算了变换器的各部分损耗,给出了损耗与死区时间的约束曲线,寻找到了最优电感量设计值,并通过仿真数据得到了验证。最后搭建了600W软开关推挽变换器实验样机,验证了该设计方法的有效性和实用性。A new resonant inductance design method based on a push-pull DC/DC resonant converter for energy storage system applications is proposed,which solves the problem of input-output gain ratio and efficiency not being balanced in push-pull boost converters powered by low-voltage batteries,and this improves the overall efficiency of the push-pull converter.The basic principle of soft switching push-pull converter is introduced,the forward and reverse gain characteristics of the converter are analyzed,the losses of each part of the converter are calculated,the constraint curve between losses and dead time is given,and the optimal inductance design value is found,which is verified through simulation data.Finally,a 600 W soft switching push-pull converter experimental prototype is built to verify the effectiveness and practicality of the designed method.

关 键 词：推挽变换器 谐振电感 增益比 

分 类 号：TM46[电气工程—电器]