Calculation of the High Frequency-Dependent Impedance of Rail Using a Equivalent Tubular Conductor Model

被引：0
|
作者：
Peng T. [1 ]
Chen J. [1 ]
机构：
[1] School of Electrical and Automation Engineering, East China Jiaotong University, Nanchang
来源：
Tiedao Xuebao/Journal of the China Railway Society | 2019年 / 41卷 / 08期
关键词：
Dispersion; Frequency-dependent impedance; Rail; Traveling-wave; Tubular conductor model;
D O I：
10.3969/j.issn.1001-8360.2019.08.006
中图分类号：
学科分类号：
摘要：
In traction power supply system, the existence of frequency-dependent impedance in rails and other transmission lines may result in dispersion generated during the propagation of fault traveling wave and affect the accuracy of traveling wave fault location.To ensure the accuracy of fault location, a full account of the dispersion characteristics of transmission line must be provided.In order to study the dispersion characteristics of traveling wave in the rail communication process, a simplified tubular conductor model for calculating the frequency-dependent impedance of high frequency traveling waves was presented, based on the existing equivalent tubular conductor model.The detailed determination method of each parameter in the calculation process was given.The simplified model was used to conduct a case study of the P50 rail.The calculation results show that the frequency-dependent impedance of rail parameters is significant, and the fault traveling wave will produce serious dispersion in the process of transmission, which can provide reference value for the follow-up study of the dispersion problem within traveling-wave fault location of traction power supply system. © 2019, Department of Journal of the China Railway Society. All right reserved.
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页码：45 / 49
页数：4
相关论文
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