基于推挽拓扑的输入并联输出串联变换器研究与设计  

Research and Design of Parallel-Output Series Converter Based on Push-Pull Topology

作　　者：宋安然 赵宏顺[1] 周德廉[1] SONG Anran;ZHAO Hongshun;ZHOU Delian(School of Mechanical and Electrical Engineering,Suqian College,Suqian Jiangsu 223800,China)

机构地区：[1]宿迁学院机电工程学院,江苏宿迁223800

出　　处：《电子器件》2020年第4期783-788,共6页Chinese Journal of Electron Devices

基　　金：国家自然科学基金项目(61873121)。

摘　　要：在输出高电压场合,由于存在高压存在,使得输出端器件承受较大的输出高电压和高电压应力。为解决输出端电压应力高等问题,提出以推挽变换器为基本单元,采用多个基本单元在输入端并联且在输出端并联,以此构成以推挽变换器为单元的输入串联输出并联组合式变换。给出了组合式变换器系统的小信号模型以及均压稳定条件。根据建立系统小信号模型以及实验样机参数要求,给出变换器驱动电路、变压器磁参数以及逐周期保护电路设计方式,最后经试验验证了理论分析的正确性。In order to solve the problem of low input voltage and high voltage,high voltage stress at the output end,a parallel converter with push-pull converter as the basic unit and multiple basic units push-pull converter is proposed,and the small signal model and stability condition of the system are given.According to the requirements of establishing the small signal model of the system and the parameters of the experimental prototype,the driving circuit of the converter,the magnetic parameters of the transformer and the design mode of the periodic protection circuit are given.finally,the correctness of the theoretical analysis is verified by experiments.

关 键 词：推挽变换器 输入并联 逐周期过流 输出均压控制 

分 类 号：TM464[电气工程—电器]