钢轨断裂对分路电流影响的研究

doi:10.16182/j.issn1004731x.joss.201808046

系统仿真学报 ›› 2018, Vol. 30 ›› Issue (8): 3198-3205.doi: 10.16182/j.issn1004731x.joss.201808046

钢轨断裂对分路电流影响的研究

张友鹏, 赵建, 赵斌

兰州交通大学自动化与电气工程学院,甘肃兰州 730070

收稿日期:2016-11-02 出版日期:2018-08-10 发布日期:2019-01-08
作者简介:张友鹏(1965-),男,甘肃庆阳,硕士,教授,研究方向为无绝缘轨道电路故障诊断与检测。
基金资助:
中国铁路总公司科技研究开发计划(2015X007-H),兰州交通大学青年基金(2015039)

Effect of Rail Fracture on Train Shunt-Circuit Current Envelope

Zhang Youpeng, Zhao Jian, Zhao Bin

School of Automation and Electrical Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China

Received:2016-11-02 Online:2018-08-10 Published:2019-01-08

摘要/Abstract

摘要： 为了分析轨道电路断裂态下机车分路电流幅值的变化规律,通过分布参数模型法建立了ZPW-2000A轨道电路断裂态等效数学模型,利用MATLAB软件仿真分析了不同道砟电阻、断裂点位置及断裂点等效阻抗变化对机车分路电流幅值包络的影响。仿真结果表明道砟电阻、断裂点位置和断裂点等效阻抗主要对断裂点之前的分路电流幅值包络影响较大,且分路电流幅值包络曲线在断裂点处总存在突变点,该模型可区分补偿电容断线和补偿电容处钢轨断裂。该数学模型可以为钢轨断裂的检测提供新的思路和理论依据。

关键词: ZPW-2000A轨道电路, 断裂态, 分路电流幅值包络, 分布参数模型

Abstract: To analyze change rules of train shunt-circuit current amplitude envelope under the track circuit crack state, a distributed parameter equivalent mathematic model of ZPW-2000A track circuit crack state was constructed based on the transmission theory; and the effect of ballast resistances, the crack points and the crack equivalent impedances on train shunt-circuit currents amplitude envelope were studied using MATLAB. Experiment results show that the ballast resistance, the crack point and the crack equivalent impedance have great influence on train shunt-circuit current amplitude envelope before crack point; and the train shunt-circuit current amplitude envelope occurs discontinuity at the crack point regardless of any case. This mathematic model provides a new thought and theoretical basis for testing crack of rail line.

Key words: ZPW-2000A track circuit, crack state, shunt-circuit current amplitude envelope, distributed parameter model

中图分类号:

U284.23

张友鹏, 赵建, 赵斌. 钢轨断裂对分路电流影响的研究[J]. 系统仿真学报, 2018, 30(8): 3198-3205.

Zhang Youpeng, Zhao Jian, Zhao Bin. Effect of Rail Fracture on Train Shunt-Circuit Current Envelope[J]. Journal of System Simulation, 2018, 30(8): 3198-3205.

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钢轨断裂对分路电流影响的研究

Effect of Rail Fracture on Train Shunt-Circuit Current Envelope

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