摘要
运用MATLAB对传统全波傅氏算法和2种改进算法进行仿真,通过对3种算法频谱图的比较分析,说明2种改进傅氏算法能够有效滤掉故障电流中衰减的直流分量,从而获得更为精确的基波和谐波的幅值.
This article make use of MATLAB to emulate traditional full-cycle Fourier algorithm and two kinds of improved Fourier algorithm, then analyze the spectnan picture of these algorithm. The result demonstrate that the improved Fourier algorithm can filter decaying DC component effectively. We can obtain the magnitude of fundamental wave and harmonic wave more accurate than traditional full-cycle Fourier algorithm.
出处
《华东交通大学学报》
2006年第1期113-116,共4页
Journal of East China Jiaotong University
关键词
傅氏算法
衰减直流分量
MATLAB
fourier algorithm
the decaying DC component
MATLAB（Matrix Laboratory）
