摘要
研究了基于FFT的电力系统谐波检测中的频谱泄漏现象,分析了产生频谱泄漏的原因,提出了利用窗函数来解决频谱泄漏现象的方法。仿真结果表明,汉宁窗可以很好地减小频谱泄漏,满足谐波检测的精度要求。
The paper investigated the problem of spectrum leakage in harmonics detection of power system based on FFT,analyzed the causation of spectrum leakage and put forward a solution method of spectrum leakage with window functions.The simulation result showed that Hann windows can reduce spectrum leakage commendably and satisfy accuracy of harmonic detection.
出处
《工矿自动化》
2010年第2期53-56,共4页
Journal Of Mine Automation
关键词
电力系统
谐波检测
频谱泄漏
窗函数
FFT
power system
harmonics detection
spectrum leakage
window functions
FFT
