电力系统自动化Issue(22)：83-89,103,8.DOI:10.7500/AEPS20141230006
五项最大旁瓣衰减窗插值电力谐波分析
Power Harmonic Analysis Based on 5-term Maximum-sidelobe-decay Window Interpolation
摘要
Abstract
A simple windowed interpolation fast Fourier transform (FFT) algorithm is proposed for power harmonic analysis under asynchronous sampling.The time and frequency domain characteristics of 5-term maximum-sidelobe-decay (MSD) window are analyzed first.Then an interpolation approach based on 5-term MSD window FFT is given and the formula of harmonics amplitude,initial phase and frequency are deduced.The approach presented is finally verified by simulations and experimental testing.Results show that the 5-term MSD window has satisfactory sidelobe characteristics for fully suppressing spectral leakage and the 5-term MSD window based interpolation method is easy to realize in embedded systems for its simple interpolated correction formula,closed form expression,highly accurate power harmonic analysis,and low computational burden.关键词
频谱泄漏/插值/快速傅里叶变换/谐波分析/电力系统Key words
spectral leakage/interpolation/fast Fourier transform (FFT)/harmonic analysis/power systems引用本文复制引用
宋树平,马宏忠,徐刚,王付宗,王洁..五项最大旁瓣衰减窗插值电力谐波分析[J].电力系统自动化,2015,(22):83-89,103,8.基金项目
国家自然科学基金资助项目(51177039)。This work is supported by National Natural Science Foundation of China(No.51177039) （51177039）
