电流连续型三相PFC

Three-Phase PFC With the Continuous Current Type

本文指出并分析了三相PFC不尽人意的根本原因,为三相电路间的工作状态的相互制约。提出一种各相可独立控制的电流连续型三相PFC的主电路拓扑,通过电路的等效变换和深化,分析了电路原理及控制方式,使PF>0.99,THD<5%

Three-phase PFC is put forward and analyzed, and the real reason of making people dissatisfy researched, which is the restriction among three phases' circuits, in this paper. And what's more, the main circuit topology controlled with continuous current type, the circuit principium and the controlling mode are pointed out though the equivalent transform and deepening lo the circuit are illustrated in the paper.