This paper improved the harmonic current detection method based on UPF (unity power factor), using the slipped window integral to replace the LPF (low pass filter).
本文对基于单位功率因数的谐波电流检测方法进行了改进，用移动窗积分法取代检测中常用的低通滤波器。
The test results show that this method is feasible for real time detection of harmonic and reactive current of the active power compensator. The circuits are very simple.
实验结果表明，这种检测方法是可行的，而且电路非常简单，可用于实时检测有源电力补偿器的谐波与无功电流。
The dominant harmonic detecting method is summarized in this paper and a modified technique based on synchronous reference is proposed for accurate harmonic and reactive current detection.
文中总结了当前主流的谐波检测方法，提出了一种用于谐波和无功准确检测的改进同步坐标系法。
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