氢能发电机移相全桥零电压PWM DC/DC变换器研究  

Research on Phase-Shifted Full-Bridge ZVS PWM DC/DC Converter of PEMFC Generator

作　　者：王巍[1] 王金全[1] 陈向锋[1] 付尚琛[1] 

机构地区：[1]中国人民解放军理工大学工程兵工程学院,江苏南京210007

出　　处：《电工电气》2011年第5期13-16,共4页Electrotechnics Electric

摘　　要：介绍了移相全桥零电压PWM软开关电路的组成、工作原理及软开关的工作过程,阐述了超前桥臂和滞后桥臂的实现条件,依据能量交换守恒原理对电感和电容的选择进行了探讨,并对PWM软开关电路特有的占空比丢失现象进行了分析,仿真验证了适应于质子交换膜燃料电池发电机输出特性的移相全桥零电压PWM软开关电路的合理性。Introduction was made to the composition of phase-shifted full-bridge ZVS PWM soft switch circuit,the working principle and the soft switch working process,realization conditions for surpassing bridge arm and delaying bridge arm described.According to the principle of energy constant,the selection of inductors and capacitors was discussed.Analysis was made to duty cycle loss characteristics which is special to the PWM soft switch.Simulation verifies the rationality of phase-shifted full-bridge ZVS PWM soft switch circuit adaptable to output characteristics of proton exchange membrane fuel cells（PEMFC） generator.

关 键 词：质子交换膜燃料电池 移相控制 DC/DC变换器 软开关 

分 类 号：TM46[电气工程—电器]