移相PWM控制直流变换器的研究  

Research on Design of Shift-phased PWM DC/DC Converter

作　　者：黄麒元 王致杰[1] 朱俊[1] 杜彬[1] 王东伟[1] 王浩清[1] 吕金都 

机构地区：[1]上海电机学院电气学院,上海200240

出　　处：《电力学报》2015年第4期305-309,共5页Journal of Electric Power

基　　金：上海自然科学基金(No.14ZR1417200;No.15ZR1417300;No.12ZR1411600);上海市教委创新基金项目(No.14YZ157;No.ZZ106);闵行区科技项目(2014MH166)

摘　　要：介绍了移相PWM技术在DC-DC变换器的应用,对移相全桥零电压PWM DC/DC变换器进行了工作原理的研究,将移相控制全桥零电压开关变换器作为DC/DC变换电路,采取集成PWM芯片UC3875作为主要控制芯片,以实现对逆变电源的PWM控制。最后利用Matlab/Simulink建立其仿真模型,并以此为基础建立逆变电源的仿真电路,验证了该系统的有效性。The shift--phased PWM technology of DC-DC converter is introduced. The theory of Phase-shif- ted full-bridge ZVS PWM DC/DC converter is studied. The Phase-shifted full-bridge ZVS PWM DC/DC converter circuit was selected as DC/DC converter topology in this inverter power. And the control of PWM inverter was realized with the UC3875 of the integrated PWM controller in order to realize the PWM control of the inverter power supply. The simulation modeling was created by MATLAB/simulink, where the experiment circuit of the inverter power supply was established, the effectiveness of the proposed con- verter was verified.

关 键 词：直流变换 移相PWM 全桥 UC3875 

分 类 号：TM46[电气工程—电器]