铁道标准设计2016，Vol.60Issue(11)：130-134,135,6.DOI:10.13238/j.issn.1004-2954.2016.11.029
电气化铁道牵引供电系统加窗插值法的谐波分析
Harmonic Analysis of Adding Window Interpolation Method in Electrified Railway Traction Power Supply System
陈佳兴 1杨剑锋1
作者信息
- 1. 兰州交通大学自动化与电气工程学院，兰州 730070
- 折叠
摘要
Abstract
The traditional harmonic analysis method is influenced by frequency spectrum leakage and fails to obtain accurately the harmonic related parameters in the electrified railway traction power supply system . This paper proposes an approach for power network harmonic analysis with six optimization cosine combined self-convolution window and four-spectrum-line interpolation. The algorithm is firstly employed to analyze the harmonic components near the fundamental wave frequency with zoom fourier transform, the residual signals are processed with window and the discrete fourier transform is used to find out the corresponding four peak spectral lines of the discrete frequency spectrum near the harmonic frequency. The frequency of the related parameters of the power network harmonic, the amplitude and phase are weighted and corrected by means of interpolation algorithm to deduce calculation formula so as to improve the accuracy of analysis results.关键词
电气化铁道/谐波分析/余弦组合自卷积窗/四谱线插值/离散傅里叶变换/复调制细化法Key words
Electrified railway/Harmonic analysis/Cosine self-convolution window/Four-spectrum-line interpolation/FFT/ZFFT分类
交通工程引用本文复制引用
陈佳兴,杨剑锋..电气化铁道牵引供电系统加窗插值法的谐波分析[J].铁道标准设计,2016,60(11):130-134,135,6.
