This paper improved the harmonic current detection method based on UPF (unity power factor), using the slipped window integral to replace the LPF (lowpassfilter).
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。
2
The former method is simpler in algorithm and implement, and the latter has lower requirement of lowpassfilter(LPF).
前者算法简单,后者对低通滤波器(LPF)的要求相对较低。
3
The lowpassfilter (LPF) and the double second rank filter (DSF) are tested to reduce the mechanical oscillation of FSM.