电力机车过关节式电分相过电压抑制方案分析

摘要

当机车过锚段关节式电分相的时侯,可能会产生过电压,严重时会危及牵引变电所中的设备安全,同时也会威胁牵引变电所和接触网的安全运行.列出两种治理过分相过电压方案,即加入RC保护装置和金属氧化物(MOA)避雷器保护装置,并利用Matlab/Sim Power Sys-tems仿真软件对加入两种保护方案后的过渡过程进行仿真,根据仿真结果对两种过电压治理方案进行比较分析,结合实际情况找出较优的治理方案.%Over-voltages frequently happen when the electric locomotive passes the articulated phase insulator,which causes tripping of substations and serious influence on safe operations of the overhead contact system and traction substations.In this paper,two kinds of over voltage control schemes are listed.These two kinds of protective devices are RC protection device and MOA protection device.The Matlab/Sim Power Systems are used to simulate the process of the electric locomotive passing the articulated phase insulator which are added two kinds of protection schemes.Based on the simulation results,the best treatment plan is found according to the actual situation.