基于Matlab的电力系统谐波分析  

Harmonic Analysis of Power System Based on Matlab

作　　者：张玉华[1] 

机构地区：[1]山西大学工程学院,太原030013

出　　处：《电力学报》2009年第3期229-231,共3页Journal of Electric Power

摘　　要：近年来,电力系统谐波问题日益突出,已严重影响到电能质量。为了提高电能质量,需对电力系统谐波分量进行快速、准确地监测,采用了一种用Matlab软件实现信号显示与频谱分析的方法。借助Matlab仿真得出谐波电流随时间变化的曲线,然后对其谐波进行频谱分析,最终得到系统的各次谐波含量。实例证明,准确测量各次谐波参数,对电力系统谐波分析和抑制具有很大的意义,可确保系统安全、可靠、经济地运行。同时实验结果表明,该法对设备要求不高,易于实现。In recent years,the problem of harmonic in power system is becoming increasingly prominent and has seriously affected the power quality. In order to improve power quality, we must measure harmonic components fast and accurately. Now this article gives a method using Matlab software to display signal and spectral analysis. With Matlab first drawing harmonic current and then analyzing harmonic,in the end we get harmonic components in system. According to the analysis results,we may be appropriate to take measures to limit the waveform distortion in the allowed range, guarantying the power system securely and reliably, At the same time, the experimental results indicate that it doesn＇t need complex equipment and is easy to display spectral analysis and the spectrograph demonstration.

关 键 词：电力系统 MATLAB 谐波分析 

分 类 号：TN911.6[电子电信—通信与信息系统]