基于PSCAD的机车过分相过电压及抑制方法仿真研究  

Simulation Research of Over-voltages of the Locomotive during Passing Phase Insulator Based on PSCAD

作　　者：仇龙刚 周福林[1] 张永岚 赵元哲[1] 

机构地区：[1]西南交通大学电气工程学院,成都610031

出　　处：《电力学报》2014年第1期1-5,76,共6页Journal of Electric Power

基　　金：铁道部科技研究开发计划项目(2012J012-A)~~

摘　　要：针对电力机车过关节式电分相时产生过电压,导致击穿保护间隙、损坏电气设备,牵引变电所跳闸等问题,对电力机车过关节式电分相全过程进行了理论分析,并利用EMTDC/PSCAD进行了建模仿真。模拟仿真了机车进出分相过程,研究了电弧重燃引起的二次重合闸过电压这一随机过程,得出电弧重燃条件下的过电压幅值要比无电弧重燃情况下的过电压幅值高的结论。并提出了抑制过电压的两种方案,结合仿真对两种方案的效果进行了对比。That the electric locomotive passes the articulated phase insulator may cause the problems of insulation breakdown, electrical equipment damaging and tripping of the traction substation. This paper analyzes the whole process of electric locomotive passing the articulated phase insulator from theory and uses EMTDC/PSCAD to model and simulate the process of locomotive passing the phase insulator. By the simulation, this paper researches into the random process of secondary reclosing over-voltages caused by the arc reignition and comes to the con- clusion that the over voltage amplitude is much higher in this situation than the situation without the arc. Two schemes for suppressing over-voltages are put forward, and the two schemes＇ effects are compared based on the simulation results.

关 键 词：电气化铁道 电力机车 过分相 过电压 电弧重燃 二次重合闸 抑制 仿真 

分 类 号：TM410[电气工程—电器]