一种新型交错式反激变换器分析与设计  

Analysis and design of a new interleaved flyback converter

作　　者：赵晋斌[1] 刘金彪[1] 梁晓霞[1] 屈克庆[1] 

机构地区：[1]上海电力学院电气工程学院,上海200090

出　　处：《电力系统保护与控制》2015年第18期129-137,共9页Power System Protection and Control

基　　金：上海市教委科研创新重点项目(13ZZ132);上海市人才发展资金项目(2012024);上海绿色能源并网工程技术研究中心(13DZ2251900)

摘　　要：提出了一种新型交错式反激变换器拓扑。利用变压器漏感与开关管并联电容、钳位电容间的谐振,实现了开关管的零电压导通(ZVS),并消除了开关管关断时所产生的电压尖峰,减小了电压应力。该变换器具有拓扑简单、实现软开关动作、输出电流纹波小以及控制简单等优点。详细分析了该变换器的稳态工作原理以及实现软开关的条件,并通过仿真和实验对上述分析进行了验证。A new interleaved flyback converter topology is proposed. The converter utilizes the resonance between the leakage inductance of transformer, parallel capacitance of switches and clamp capacitor to realize Zero Voltage Switching （ZVS）. The voltage spike is eliminated and the voltage stress can be reduced when the switch is turned off. The converter has the advantages of simple topology, soft-switching, small output current ripple and simple control. The detailed operation principle and the condition of soft switching are presented. Finally, the analysis above is verified by simulation and experiment.

关 键 词：交错式 反激变换器 软开关 拓扑 谐振 

分 类 号：TM46[电气工程—电器]