高速铁路弓网离线在线识别及应对策略  

Identification and response strategy for pantograph-catenary contact loss in high-speed railway

作　　者：刘洋 李水昌 王永翔 殷振环 马驰 程龙 LIU Yang;LI Shuichang;WANG Yongxiang;YIN Zhenhuan;MA Chi;CHENG Long(Locomotive&Car Research Institute,China Academy of Railway Sciences Corporation Limited,Beijing 100081,China;Beijing Zongheng Electro-Mechanical Technology Co.,Ltd.,Beijing 100094,China)

机构地区：[1]中国铁道科学研究院集团有限公司机车车辆研究所,北京100081 [2]北京纵横机电科技有限公司,北京100094

出　　处：《机车电传动》2024年第2期171-177,共7页Electric Drive for Locomotives

基　　金：中国国家铁路集团有限公司科技研究开发计划项目(J2022J004);中国铁道科学研究院集团有限公司重点项目(2023YJ018)。

摘　　要：电气化铁路车辆运行过程中,受电弓与接触网之间的短暂分离(即弓网离线)易引发过电流问题,产生安全隐患、影响铁路运营秩序。文章基于既有动车组牵引电传动系统,介绍其主电路结构及网侧整流器的控制方法,分析弓网离线对系统的影响,着重研究弓网离线后恢复接触时产生过电流问题的原因,提出弓网离线在线快速识别及应对策略。文章搭建了包含电弧模型的牵引电传动系统全数字实时仿真模型,首先通过与实测波形对比证明模型的准确性,然后基于该模型验证文中提出的弓网离线在线识别及应对策略。Transient disconnection between pantographs and catenaries during train operation on electrified railways,known as pantograph-catenary contact loss,can cause issues like over-current,creating safety hazards and consequential disruptions to operational order.This paper introduces the main circuit structure and control method of grid-side rectifiers of the prevailing traction electric drive systems for EMU.The analysis investigated the system impacts of pantograph-catenary contact loss,emphasizing the reasons for over-current occurrences during contact recovery,leading to the establishment of a rapid online identification method and a response strategy.Following developing a full-digital real-time simulation model of the electric drive systems for traction,which includes an arc model,accuracy verification was conducted firstly through waveform comparisons with actual measurements.This model was subsequently used to verify the proposed identification method and response strategy for pantograph-catenary contact loss.

关 键 词：高速铁路 弓网离线 牵引系统 电弧 四象限 高速动车组 

分 类 号：U292.914[交通运输工程—交通运输规划与管理] U225.3[交通运输工程—道路与铁道工程]