一种新型并联混合有源滤波器的研究

The Research of A Novel Shunt Hybrid Active Power Filter

本文提出了一种新型并联混合型有源渗滤器的拓扑,新型拓扑通过并联谐振抑制流过无源网络的基波无功电流,减小了有源渗滤器承担的基波电流。同时在此拓扑基础上讨论了它的控制策略,在此控制策略下,有源渗滤器不承担基波电压,且只承担很小的基波电流,因此有源滤波器的容量达到了最小。本文分析了并联谐振对无源网络阻抗的影响.并对比分析了控制策略在传统拓扑和新型拓扑下对有源滤波器容量的影响,最后通过仿真证明了结论的正确性。

In the paper,a novel topology of shunt hybrid active power filter was put forward.The novel topology restrain the fundamental reactive current of passive network using paralle resonance,and reduce the fundamental current which afforded by active power filter.Basing on the novel topology ,it＇s control strategy was discussed.In this control strategy,active power filter can＇t afford fundamental voltage,and afford little fundamental current,so minimize the capability of active power filter.In this paper,we analyze the influence on impedance made by parallel resonance,also analyze the influence on the capability of active power filter made by control strategy between conventional topology and novel topology.Finally the conclusion was proved to be right using simulation.