有源电力滤波器滞环电流跟踪控制策略仿真研究

本文介绍了三相并联型有源电力滤波器的构成,分析了基于三相瞬时功率理论的i-iq谐波检测算法,并且采用PI调节实现直流侧电容电压的有效控制.为了克服电流跟踪控制策略中传统滞环控制的环宽设置对开关频率和响应速度的影响,本文采用一种基于电压空间矢量的滞环控制,有效的降低谐波电流含量及开关频率的同时保证了直流侧电压的响应速度,MATLAB仿真实验结果证明了该控制策略的可行性及良好的补偿性能.

Simulation of Hysteresis Current Tracking Control Strategy for Active Power Filter Based on Voltage Space Vector

This article describes the composition of the three-phase shunt active power filter, analyzes ip-iq harmonic detection algorithm based on three-phase instantaneous power theory, and uses PI regulator to achieve effective control of DC capacitor voltage. In order to overcome the current tracking control strategy of traditional hysteresis control＇s loop width setting effect on the switching frequency and speed of response, this paper uses a hysteresis control based on voltage space vector, effectively reducing the harmonic current content and ensuring the response speed of DC voltage. MATLAB simulation results prove the feasibility of the control strategy and better compensation performance.