摘要
提出一种基于新型CLC倍压单元与耦合电感结合的准Z源高电压增益DC-DC变换器。通过倍压单元的改进,无需极限占空比即可实现变换器高升压增益特性。相比于传统准Z源变换器,该变换器具有的低应力特性可以在电路设计中选用电压等级更低、导通电阻更小的MOSSFET以减小导通损耗,从而实现更高的转换效率。在PSIM中搭建一个500 W的仿真模型,验证了拓扑和理论分析的正确性。
A quasi-Z source high voltage gain DC-DC converter based on a new CLC voltage doubling unit combined with a coupled inductor is proposed.Through the improvement of the voltage doubling unit,the high boost gain characteristic of the converter can be realized without the limit duty ratio.Compared with the conventional quasi-Z source converter,the low stress characteristic of the converter proposed in this paper can select a lower voltage grade,smaller on-resistance MOSSFET in the circuit design to reduce conduction losses for higher conversion efficiency.A 500W simulation model is built in PSIM to verify the correctness of topology and theoretical analysis.
作者
卫科
周雪松
马幼捷
李微
Wei Ke;Zhou Xuesong;Ma Youjie;Li Wei(State Grid Jincheng Power Supply Company,Jincheng 048000,Shanxi,China;School of Electrical and Electronic Engineering,Tianjin University of Technology,Tianjin 300384,China)
出处
《计算机应用与软件》
北大核心
2021年第12期42-49,共8页
Computer Applications and Software
基金
国家自然科学基金面上项目(51877152)
天津市自然科学基金项目(18JCZDJC97300)。
关键词
倍压单元
准Z源
耦合电感
高电压增益
Double voltage unit
Quasi-Z source
Coupled inductor
High voltage gain
