一种新型混合有源电力滤波器的研究

Research on Novel Hybrid Active Power Filter

本文提出了一种新型的混合滤波拓扑,其有源部分的安装容量相对目前常见的电路有很大程度的降低,理论分析与仿真验证证明了该电路不仅能改善系统波形,而且能抑制无源滤波器与电网之间的谐振。同时,本文中有源滤波器的控制采用了电压空间矢量的方法,它具有很高的直流电压利用率,便于微机实现及减小开关损耗。

A novel topology of hybrid power filter is introduced in this paper. With such filter, not only the system waveform could be improved, but also the resonance between passive filter and power net could be suppressed. The voltage space vector Modulation is ap- plied in the control of active filter, so the utilization ratio of DC voltage could be high and the switching loss could be reduced evidently.