Research on Railway Harmonic Suppression Based on High-Pass Filter

doi:10.11985/2017.02.001

Abstract

Abstract:

With the extensive uses of electric multiple units (EMU) in electrified railway, harmonic resonance problem of traction network resulted from high frequency harmonics generated by electric multiple units becomes more serious. To solve this problem, the equivalent circuit model of traction network is built in the paper to analysis harmonic resonance and amplification characteristics theoretically, and the characteristics by simulations are verified. Thus, a harmonic resonance suppression method is introduced by installing high-pass filter in the locomotive traction transformer secondary winding. A method is presented to select filter element parameters, and the effectiveness of harmonic suppression method are verified through theoretical calculations and simulations, which has reference value for harmonic resonance hazard prevention.

Key words: Traction power supply system, harmonic transmission characteristics, high-pass filter, Matlab simulation

CLC Number:

TM464

Qizhi Ma,Xuqin Xie,Zhuohui Deng,Baishui Ruan,Gang Zhang. Research on Railway Harmonic Suppression Based on High-Pass Filter[J]. Journal of Electrical Engineering, 2017, 12(2): 1-7.

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组别	电感/μH	电容/μF	电阻/Ω
1	300	21.11	20
2	200	31.66	15