新型混合有源滤波器的研究

In this paper a new topology of Hybrid Active Power Filter(HAPF) was proposed for high-voltage distribution grid. The Passive Power Filter(PPF) of this topology consists of capacitors and three-phase transformer(YnYn), Magnetizing inductances and capacitors are used to tune off 5th harmonic order frequency.The Active Power Filter(APF) is connected in siries to transformer and capcacitors,which greatly reduces the voltage rating of APF.Because of this advantage,this topology is effective to be used in the high-voltage distribution grid.