中文说明：
对ip-iq算法电流谐波检测搭建三相四线制电流谐波检测simulink模型，参数已经调节好可直接运行，输出波形。
English Description：
For the IP IQ algorithm current harmonic detection, a three-phase four wire system current harmonic detection Simulink model is built. The parameters have been adjusted and can be operated directly, and the output waveform is obtained.