零电流软开关全桥直流变换器性能研究  

Study of Zero Current Soft Switching Full-bridge DC-DC Converter

作　　者：张世伟 ZHANG Shi-wei(School of Electrical Engineering, Xuchang University, Xuchang 461000 China)

机构地区：[1]许昌学院电气工程学院,河南许昌461000

出　　处：《科技创新与生产力》2018年第2期72-74,共3页Sci-tech Innovation and Productivity

基　　金：许昌学院校内科研基金项目(2017YB012)

摘　　要：笔者提出了一种零电流软开关全桥直流变换器,阐述了其电路结构和8个工作阶段的工作原理。试制了一台功率为3 k W的实验样机,分析了样机主开关管的电压波形及电流波形,指出零电流软开关全桥直流变换器有效地实现了前后两桥臂开关管零电流关断,明显减少了变换器工作损耗,在高电压大电流应用场合具有良好的性能和效率。This paper proposes a zero current soft switching full bridge DC converter,expounds its circuit structure and working principle in eight stages,and an experimental prototype is made.It analyses the voltage waveform and current waveform of prototype main switch,points out that the zero current soft switching full bridge DC converter effectively realizes the zero current shutdown of the^ont and back bridge arms switch,reduces the work loss of the converter,and it shows good performance and efficiency in high power application.

关 键 词：变换器 全桥直流变换器 软开关 低功耗 

分 类 号：TM46[电气工程—电器]