摘要
基于全桥移相(PSFB)控制技术,提出一种可实现交流输入与直流输出隔离的三相四线AC/DC变换器。对基本结构进行了理论分析和实验验证。理论和实验表明该变换器有效提高功率因数,明显改善滞后臂的软开关。
Based on the phase shift full bridge(PSFB)technique for a full-bridge converter, a three-phase four-wire AC/DC converter is presented. In this converter, the isolation of the DC output from the AC input is obtained. The FB has two functions: chopping line voltages and inverting rectified voltage. The input inductors can both track line voltages and improve soft-switching of the lagging arm. Analysis is given for the basic converter. It is shown this converter has a good power factor corrector(PFC)effect and soft-switching enhancement of the lagging arm is obvious. Experimental results are given to confirm the theory.
出处
《电工技术学报》
EI
CSCD
北大核心
2004年第4期70-75,共6页
Transactions of China Electrotechnical Society
