串联谐振注入式有源电力滤波器复合控制算法

摘要

The traditional hysteresis current control switch frequency is not fixed, wide range of output spectrum, filter more difficult, based on active power filter with series resonance injection (SRIHAPF). In the traditional hysteresis control, and on the basis of introducing proportion integral control algorithm resonance, this paper puts forward a compound control algorithm as the filter of the current tracking control algorithm. To avoid the traditional hysteresis control switch frequency is not fixed and proportion integral achieve system stable resonance delay long weakness. The proposed algorithm has high accuracy and good tracking performance. The simulation and experimental results prove that the compound control algorithm can improve the current tracking performance of the filter and harmonic compensation effect.%　　传统滞环电流控制开关频率不固定，输出频谱范围宽，滤波较困难，以串联谐振注入式混合有源电力滤波器(SRIHAPF)为例，在传统滞环控制的基础上加以改进，并结合比例谐振积分控制算法，提出一种复合控制算法作为该滤波器的电流跟踪控制算法。避免了传统滞环控制开关频率不固定和比例谐振积分达到系统稳定延时长的缺点。该算法准确性高，跟踪效果好，运用 Matlab 进行了仿真和实验验证。仿真和实验结果证明，该复合控制算法能够提高滤波器的电流跟踪性能和谐波补偿效果。