摘要
本文分析了采用半控双三相12脉冲整流器的高速磁悬浮列车牵引供电系统及其产生的谐波。它是一种新型的谐波源,所产生的高频谐波对磁悬浮列车的安全稳定运行产生了很大的危害。采用小波包变换对高速磁悬浮列车牵引供电系统所产生的高频谐波信号进行了仿真分析,结果表明:小波包变换应用于高速磁悬浮牵引供电系统的谐波分析,可将信号中的高频成分逐步分离,减少高频谐波成分对电力系统的污染,对实现高速磁悬浮牵引供电系统谐波信号的高分辨率检测具有很好的应用价值。
Traction power system of high speed maglev, which adopts the semi-control double three-phase 12-pulse rectifier, and its harmonics were analyzed. Traction power system of high speed maglev is a new harmonics resource and its harmonics do great harm to the movement of high speed maglev safely and stably. Wavelet packet transform was used to analyze the high-frequency harmonics of traction power system of high speed maglev and simulation was carried on. Simulation results indicated that the high-frequency harmonics of signal could be separated and its pollution could be decreased while wavelet packet transform was used. It's of great value to realize high-distinction measure on traction power system of high speed maglev.
出处
《仪器仪表学报》
EI
CAS
CSCD
北大核心
2006年第z2期1374-1376,共3页
Chinese Journal of Scientific Instrument
关键词
高速磁悬浮列车
牵引供电系统
谐波
小波包变换
高频
high speed maglev traction power system harmonic wavelet packet transform high frequency
