三相功率因数校正拓扑结构及软开关技术

Three-Phase Power Factor Correction Circuits and Soft Switching Techniques

单相功率因数校正技术已进入应用阶段 ,而三相功率因数校正技术仍处于发展探索时期。本文从拓扑、应用方面系统地论述了三相功率因数校正技术近期内的发展 ,阐述了各类开关变换器的特点及用途。同时 ,介绍了用于功率因数校正的具有代表性的软开关技术及其优缺点。

The power factor correction techniques of single phase switching converter have put into the practice, while the power factor correction techniques of three phase switching converter are just in the stage of research. This paper reviews recent progress in topologies, applications of three phase PFC techniques and illustrates the advantage of various converter. At the same time, merits and limitations of the representative soft switching techniques are discussed.