Research of Problem of Spectrum Leakage in Harmonics Detectio
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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。Abstract: 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.
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Key words:
- power system /
- harmonics detection /
- spectrum leakage /
- window functions /
- FFT
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