交直流双制式列车过分相暂态过程仿真研究  

Research on Transient Process of AC/DCDual-system Locomotive Passing Electric Phase Separation by Simulation

作　　者：刘卫东[1] 胥伟[1] 刘飞 谢崇豪 LIU Weidong;XU Wei;LIU Fei;XIE Chonghao(China Railway Eryuan Engineering Group Co.,Ltd.,610031,Chengdu,China;不详)

机构地区：[1]中铁二院工程集团有限责任公司,成都610031 [2]西南交通大学电气工程学院,成都610031

出　　处：《城市轨道交通研究》2022年第7期85-89,共5页Urban Mass Transit

基　　金：中铁二院工程集团有限责任公司科技研究开发项目(KYY2018022(18-20))。

摘　　要：交直流双制式牵引供电系统可满足铁路线路与城市轨道交通线路互联互通的需求。以国内首条交直流双制式线路(重庆市郊铁路跳磴至江津线)为例,建立了双制式列车通过锚段关节式电分相过程的等值电路模型及双制式列车过分相过程仿真模型,分析了列车通过锚段关节式电分相时的暂态特性,并提出了抑制过电压的具体方案。对江跳线进行仿真,结果表明:列车通过锚段关节式电分相时在交流和直流接触网分别产生了64.11 kV和13.83 kV的过电压,该过电压大小与交流接触网的电压相位角和谐波有关。加装阻容保护器能够有效抑制列车通过关节式电分相时产生的过电压。The AC/DC dual-system traction power supply system can meet the needs of interoperation between railways and urban rail transit.Equivalent model of AC/DC dual-system locomotive passing through the anchor joint articulation phase separation process is established.The simulation model of dual-system locomotive passing electric phase separation is established,and the transient characteristics of the locomotive passing through the anchor joint articulation phase is analyzed.Specific scheme of overvoltage suppression is proposed.Taking the first domestic AC/DC dual-system line(Chongqing Jiangtiao Railway)as example case for simulation,results show that the locomotive will cause an overvoltage of 64.11 kV in AC contact grid and 13.83 kV in DC contact grid through the anchor joint electric phase separation.The magnitude of overvoltage is related to the phase angle and harmonics of the AC contact network voltage.Installing RC protector can effectively suppress overvoltage when locomotive passing through joint electric phase separation.

关 键 词：市郊铁路 牵引供电系统 交直流双制式 电分相 暂态过程 过电压 

分 类 号：U239.5[交通运输工程—道路与铁道工程] U264.231[机械工程—车辆工程]