摘要
电力系统谐波和间谐波的实时精确检测是谐波评估和治理的前提和基础。结合国内外谐波检测技术的发展现状,从检测信号模型出发,对基于加窗、加窗插值、谱估计和希尔伯特—黄变换(HHT)的谐波检测算法进行了分类和总结,指出了各种算法在谐波检测中的优缺点。最后,对电力系统谐波检测中需要关注的问题和研究方向进行了探讨。
Accurate harmonics and inter-harmonics measurement in the electrical power system is the precondition and foundation of harmonic mitigation.Bearing in mind the development status of harmonic detection technologies worldwide,starting with detection signal model,various methods and their characteristics for the harmonic analysis with different signal models,such as discrete Fourier transform（DFT）,spectrum estimation and Hilbert-Huang transform（HHT） are discussed in details,and some research points in the future are proposed.
出处
《电力系统自动化》
EI
CSCD
北大核心
2013年第11期125-133,共9页
Automation of Electric Power Systems
基金
江苏高校优势学科建设工程资助项目~~
关键词
稳态谐波
稳态间谐波
随机谐波
谐波检测
加窗插值
谱估计
希尔伯特—黄变换
小波分析
stationary harmonic
stationary interharmonic
random harmonic
harmonic measurement
windowed interpolation
spectrum estimation
Hilbert-Huang transform
wavelet analysis
