抑制单级功率因数校正变换器中电容电压的方法  

Research of Alleviating The Capacitor Voltage Stress in Single Stage PFC Converter

作　　者：周志强[1] 蔡丽娟[1] 鄢毅之[1] 

机构地区：[1]华南理工大学电力学院雅达电源实验室,广州510640

出　　处：《电源世界》2004年第10期58-61,共4页The World of Power Supply

摘　　要：本文分析了单级功率因数校正变换器存在储能电容电压过高的内在原因,提出了抑制电容电压应力的几种方案,并进行了电路分析和仿真试验。根据实验和电路分析结果,串联充电、并联放电方案和电感电流临界工作模式方案,在抑制储能电容电压方面是两种最优的解决方案。The inherent reason of the high capacitor voltage stress of single stage power factor correction converter is analyzed, and then, several possible resolving schemes is discussed, finally some of practical implementation circuit topologies are givea Theoretical analysis and simulation results show that the both series—charging, parallel-discharging capacitors scheme and a novel boundary working mode are deemed to be more viable than the others methods.

关 键 词：单级功率因数校正 储能电容电压 临界工作模式 

分 类 号：TM92[电气工程—电力电子与电力传动]