弓网电弧对AT供电系统的影响及抑制措施  

Influences to AT Power Supply System Caused by Pantograph-catenary Arc and its Compression Measures

作　　者：陈宇[1] 陈晨旭 王晓阳 CHEN Yu;CHEN Chenxu;WANG Xiaoyang

机构地区：[1]西南交通大学电气工程学院 [2]中国铁路北京局集团有限公司天津供电段

出　　处：《电气化铁道》2019年第4期15-19,共5页Electric Railway

摘　　要：基于修正的弓网电弧动态模型研究弓网电弧对供电系统的影响,研究表明,电弧熄灭时刻会对系统产生明显的冲击,阻容吸收模块可有效抑制弓网电弧产生的过电压,并缩短燃弧时间,对提高弓网受流质量、保证牵引供电系统稳定运行具有积极意义。On the basis of the modified pantograph-catenary model, researches are made for the influences to the power supply system caused by the arc generated by the pantograph-catenary, and it shows the arc will impose apparent impact to the system when it is in the moment of extinguishing, the resistance-capacitance absorption module may suppress the overvoltage generated by the pantograph-catenary arc. and shorten the arcing time, it has positive significance to the quality of pantograph-catenaries’ power collection and guarantee of reliable operation of traction power supply system.

关 键 词：弓网离线 动态电弧模型 过电压 AT供电 电弧抑制 

分 类 号：U225.4[交通运输工程—道路与铁道工程]