高功率因数软开关三相AC/DC变换器  

A Three-Phase Soft-Switching Converter with PFC

作　　者：赵涛[1] 王相綦[1] 董晓莉[1] 尚雷[1] 金正方[1] 张海燕[1] 

机构地区：[1]中国科学技术大学国家同步辐射实验室,230029

出　　处：《电工技术学报》2002年第6期59-61,共3页Transactions of China Electrotechnical Society

摘　　要：把移相控制全桥变换技术用于三相AC/DC变换器的功率因数调整 ,将中线接至变换器 ,得到一种新型主电路拓扑结构 ,各功率管实现了软开关。利用Pspice对该结构进行了仿真 ,系统的功率因数约 0 98。The neutral wire is introduced and connected to a full bridge three phase AC/DC converter to get a novel topology for PFC In this topology,isolation of the DC output from AC input is achieved because of the full bridge Softswitching is obtained with phase shift technique The PFC principle is analyzed and the power factor is about 0 98 Pspice is used to simulate the topology It is shown that the higher the rectified voltage is,the higher the power factor is Some experimental results are given

关 键 词：高功率因数 软开关 三相AC/DC变换器 仿真 主电路拓扑结构 

分 类 号：TN624[电子电信—电路与系统]