Research on harmonic resonance suppression scheme of traction power supply system for high speed railway
ZHANG Wenren
Abstract：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 reducing the harmonic percentaeges of the system.The mathematical model of traction power supply 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 theory.Through 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 purpose of suppressing system harmonic.
Keywords：traction power supply systemharmonic resonancemodal theoryresonance sensitivityharmonic suppression
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：8( 106-113 )