列车运行速度对弓网电弧电气特性的影响研究  

Study on Influence of Train Speed on Electrical Characteristics of Pantograph-catenary Arc

作　　者：雷栋 张婷婷[2] 段绪伟 高国强[2] 魏文赋[2] 吴广宁[2] LEI Dong;ZHANG Tingting;DUAN Xuwei;GAO Guoqiang;WEI Wenfu;WU Guangning(Institute of Standard Metrology, China Academy of Railway Science, Beijing 100081, China;School of Electric Engineering, Southwest Jiaotong University, Chengdu 610031, China)

机构地区：[1]中国铁道科学研究院标准计量研究所,北京100081 [2]西南交通大学电气工程学院,四川成都610031

出　　处：《铁道学报》2019年第7期50-56,共7页Journal of the China Railway Society

基　　金：国家自然科学基金(U1234202,51577158,51325704);国家轨道电气化与自动化工程技术研究中心开放课题(NEEC-2017-B10)

摘　　要：列车速度的提高加剧弓网电弧的产生,影响高速铁路的安全稳定运行。基于经典的Cassie和Mayr电弧模型,考虑电弧长度、列车速度对电弧横向吹弧耗散功率的影响,对Cassie-Mayr串联电弧模型进行改进;通过模拟实验和仿真结果对比,验证模型的正确性。建立牵引供电系统实际参数模型,分析离线时间和列车运行速度对电弧电压、电流的影响;对比列车速度为100、400km/h时的弓网电弧伏安特性曲线。结果表明,弓网电弧电压随离线时间、列车速度的增大而增大。当燃弧时间0~100ms内、运行速度为100km/h时,起弧电压幅值从35V增大到137V;当速度增大至400km/h,起弧电压从37V增大到386V。The increase of train speed aggravates generation of the pantograph-catenary arc, which seriously affects the safe and stable operation of high-speed railway.In this paper, based on the classical arc models of Cassie and Mayr, the Cassie-Mayr series arc model was improved, considering the influence of arc length and train speed on the dissipated power in the transverse blowing arc.Through the experiment and comparison with the simulation results, the correctness of the improved model was validated.The actual parameter model of traction power supply system was established to analyze the effects of the separation time and the train speed on arc voltage and current.The U-I characteristic curves of pantograph-catenary arc at the trains speeds of100 km/h and400 km/h were compared.The results show that the voltage of pantograph-catenary arc increases with the increase of the separation time and the train speed.During arcing time of 0~100 ms, voltage amplitudes of sparking arc increase from35 V to137 V at the train speed of100 km/h.As the train speed increases to400 km/h, the amplitudes of sparking arc rise from37 V to386 V.

关 键 词：运行速度 电弧模型 电气特性 高速列车 

分 类 号：U266.34[机械工程—车辆工程]