一种拓扑不对称的三相电力有源滤波器研究

doi:10.12052/gdutxb.210144

Abstract

Abstract: An asymmetric topology suitable for three-phase active power filter is proposed. The topology combines a passive filter with a low-power active filter to decrease the capacity and system losses of the voltage inverter (VSI) . It consists of a three-phase bridge, a two-phase dual-resonant LC passive filter and a phase coupled inductor. By reducing the number of devices, the topology design scheme explores the impact of the changes of APF device parameters, which will affect the compensation effect of APF. Finally, a control strategy based on virtual capacitor voltage compensation is proposed to control the system effectively. Simulation and experiments show that the topology and control strategy proposed are feasible.The scheme of this topology and its control strategy can reduce the number of devices and be used in combination with traditional symmetric control strategies, which is easy to be implemented in engineering.

Key words: active power filter, asymmetric topological structure, harmonic compensation, specific subharmonic, virtual capacitor

CLC Number:

TM761

Wang Jiang-qi, Zhang Miao, Li Yue, Su Teng. An Asymmetric Topology of Three-phase Active Power Filter[J].Journal of Guangdong University of Technology, 2023, 40(01): 100-106.

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