一种改进型谐波与无功电流检测方法的仿真研究

Simulation of an Improved Detecting Method for High Harmonic and Reactive Currents

对基于瞬时无功功率理论的应用高通滤波器检测高次谐波电流的方法进行了简要分析 ,继而提出一种新的改进型检测方法 ,即省去无功电流通道的一个高通滤波器后 ,被检测电流中的高次谐波电流和基波无功电流就能同时被检测出来 利用科学计算软件Matlab对该模型进行计算机仿真研究 。

The method of detecting harmonic currents by applying high pass filters, based on the instantaneous reactive power theory, is briefly discussed. A new and improved detecting method is proposed, which can detect high frequency harmonic and reactive currents simultaneously when the reactive current channel is connected directly without using high pass filter. Form computer simulations by using MATLAB software, it shows that the proposed method is correct and feasible.