牵引网异相短路时馈线保护装置动作分析  

Analysis of Actions of Feeder Wire Protection Device as Traction Network is being in Wrong-phase Short Circuit

作　　者：董智慧[1] 韩正庆[1] 李攀宏[1] 

机构地区：[1]西南交通大学电气工程学院

出　　处：《电气化铁道》2013年第6期12-15,共4页Electric Railway

摘　　要：交流电气化铁路中,当电力机车不降弓带电通过电分相时可能发生异相短路故障。发生异相短路故障时,传统的馈线保护装置可能动作不正常,使得故障线路不能被及时切除,给铁路运营系统带来了不小的影响。通过Matlab/Simulink建立锚段关节式电分相异相短路模型,分析传统馈线距离保护装置和馈线电流保护装置拒动的原因。Out-of-phase short-circuit fault may occurred when en-energized electric locomotives do not bow down through neutral section in AC electrified railway.Traditional feeder relays may mis-operate in this condition,it makes the fault line can not be resected promptly,and the fault brought huge impact to railway operation system.An out-of-phase short-circuit fault simulation model of overlap-structure neutral section was built in MATLAB/Simulink to analysis reasons why traditional feeder relays cannot protect against out-of-phase short-circuit fault.

关 键 词：异相短路 锚段关节式 馈线保护 拒动 

分 类 号：U225.4[交通运输工程—道路与铁道工程]