一种新型单级PFC拓扑及控制方式研究

Research on a Bridge Inverter based Single-Stage PFC Topology and Control Stage

提出了一种基于桥式逆变电路的新型单级功率因数校正变换器的电路拓扑。详细分析了其工作原理及控制方式;研究了该电路拓扑的输入、输出性能指标及其与控制参数之间的关系。通过对实验样机的设计和仿真分析表明,运用该电路拓扑的实验装置,其功率因数较高,输入电流的总谐波畸变较低,输出电压纹波小。

This paper introduces a novel topology about single-stage PFC converter based on bridge inverter and analyzes its theory of operation.With the analysis of prototype,the paper presents the input and output performance about this topology.As a result of simulation, the topology can make the device get to high PF, low THD of input current, and low ripple of output voltage,and high efficiency.