中文说明：
有源滤波器的matlab仿真程序，使用了ip-iq电流检测法，中间使用滞环控制产生了控制脉冲，进而实现了谐波电流的补偿。
English Description：
In the MATLAB simulation program of active power filter, IP IQ current detection method is used, and hysteresis control is used in the middle to generate control pulse, so as to realize the compensation of harmonic current.