| 高铁牵引电流分布及贯通地线工程配置研究 |
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| 引用本文： | 张硕,刘倡,陈炳均,杨世武.高铁牵引电流分布及贯通地线工程配置研究[J].铁道建筑技术,2020(4):120-124. |
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| 作者姓名： | 张硕 刘倡 陈炳均 杨世武 |
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| 作者单位： | 北京中铁建电气化设计研究院有限公司;北京交通大学电子信息工程学院;中铁二院工程集团有限责任公司 |
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| 基金项目： | 中国铁路总公司技术标准编制项目(16CR066)。 |
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| 摘 要： | 我国正在规划400 km/h高速铁路,在更高速度下信号系统和接地系统的适应性有待于全面分析和评估。本文结合中国高速铁路背景,关注牵引供电系统中的主要设计参数,对比连续模型与节点模型,针对AT供电复线条件,搭建其参数可变的节点电压模型并进行仿真计算;对贯通地线截面积及其正常条件下的载流量、暂态条件下的熔断电流等特性对牵引电流分布的影响进行研究,并得出TJ-70型贯通地线能满足400 km/h条件下绝大部分情况泄流要求的结论。
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| 关 键 词： | 高速铁路 贯通地线 综合接地 牵引电流 建模仿真 |
Study on Distribution of Traction Current and Integrated Earthing System Under High-speed Railway |
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| ZHANG Shuo,LIU Chang,CHEN Bingjun,YANG Shiwu.Study on Distribution of Traction Current and Integrated Earthing System Under High-speed Railway[J].Railway Construction Technology,2020(4):120-124. |
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| Authors: | ZHANG Shuo LIU Chang CHEN Bingjun YANG Shiwu |
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| Institution: | (Beijing China Railway Construction Eletrifeation Design&Research Institute Co.Ld,Beijjig 100043,China;School of Electronie and Information Engineering,Bejjing Jiaotong Univerity,Beijing 0004,China;China Railway Eryuan Engineering Group Co.Ltd,Chengdu Sichuan 610031,China) |
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| Abstract: | China is working on the 400 km/h High-speed Railway(HSR).The compatibility of integrated earthing system and railway signalling system under higher speed is not yet comprehensively analyzed and evaluated.Firstly,with the background of China's high-speed railway,this paper combined main design parameters with relevant theories of Traction Power Supply System(TPSS),compared system node model with continuous mathematical model and established a double-line Auto-Transformer(AT)power supply node model with variable parameters.Moreover。retwm current distribution scale of tracetion network lines was calculated and compared with railway field data.Lastly,the model discused diferent railway through-ground wire(GW)diameters along with its impact on traction current distribution,wire current-carrying capacity under normal condition and wire fusing current under transient condition.The results show the type of TJ-70 through-ground wire meets the urrent-carrying requirements of 400 km/h HSR in most simulation cases. |
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| Keywords: | high-speed railway through-ground wire integrated grounding traction current simulation model |
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