三相并联有源电力滤波器的控制方法研究

在介绍并联有源电力滤波器的结构与工作原理的基础上，本文分析了基于三相瞬时无功功率理论的指令电流计算方法和滞环电流控制策略。利用Matlab软件的电力系统工具箱，建立了有源滤波器的仿真模型。通过仿真结果表明，所给出的控制算法正确，所设计的有源滤波器能够有效地抑制谐波电流并且提高了电能质量。

Study on Control Strategy for three-phase Shunt Active Power Filter

On the basis of introducing the structure and the working principle of a shunt active power fiher, the reference current calculating method based on three-phase instantaneous reactive power theory and the hysteresis loop current tracking control strategy are analyzed in this paper. The simulation model of APF is established by making use of the power system tool kit of Matlab software. The simulation result shows that the provided control algorithm is correct and the designed APF can effectively restrain the harmonic current, and improve the power quality as well.