有源滤波器的谐波电流检测及仿真

The detecting of harmonic current and simulation in active power filter

文章利用瞬时无功功率理论的p、q运算方式对有源滤波器的谐波电流进行了检测。该方法成本低,检测精度高,特别适用三相平衡系统的谐波电流实时检测,经实验和仿真验证了该方法的准确性和实时性。

A harmonic current detecting method is presented on the base of p, q calculating modes of instantaneous reactive power in active power filter （APF）. Its character is that low cost and high detecting sensitivity. This method can precisely detect harmonic current in the system of balance. The experiment and simulation results demonstrate the veracity and precise of this method.