高速铁路牵引供电系统谐波谐振抑制方案研究  

Research on harmonic resonance suppression scheme of traction power supply system for high speed railway

作　　者：张文仁 

机构地区：[1]中铁第一勘察设计院集团兰州铁道设计院有限公司,兰州730000

出　　处：《北京交通大学学报》2017年第5期106-113,共8页JOURNAL OF BEIJING JIAOTONG UNIVERSITY

基　　金：国家自然科学基金项目(51178026)~~

摘　　要：由于牵引供电系统对谐振频率附近的谐波有放大作用,且输入系统的谐波与系统谐振频率越近,系统对谐波的放大作用越大.若通过合理优化牵引供电系统结构,使系统谐振频率避开输入系统的谐波频率范围,则能有效抑制谐波谐振,进而达到降低系统谐波含有率的目的.基于该思路,本文建立了牵引供电系统数学模型,利用模态分析理论研究牵引供电系统主要组成元件的谐振灵敏度,并通过实例计算,证明优化牵引供电系统结构后,牵引供电系统谐波含有率明显降低,可达到抑制系统谐波含有率的目的.The traction power supply system amplifies the harmonic in the vicinity of the resonance frequency. Therefore, with the harmonic frequency approaching the system resonant frequency, the amplification of the system improves accordingly. If the structure of the traction power supply system is optimized reasonably,the harmonic frequency of the system can be set out of the range of the input system. By so doing the harmonic resonance can be effectively suppressed, thus re-ducing the harmonic percentaeges of the system. The mathematical model of traction power sup-ply system is established based on this idea. Then resonance sensitivity, tested from the main components of the traction power supply system, is studied through modal analysis theoThrough examples？ this paper prove that harmonic ratio in traction power supply system decrease significantly after the optimization of the power supply system structure,which achieve the pu- pose of suppressing system harmonic.

关 键 词：牵引供电系统 谐波谐振 模态理论 谐振灵敏度 谐波抑制 

分 类 号：U223.6[交通运输工程—道路与铁道工程]