新一代地面自动过分相在市域铁路工程的应用探讨

Discussion on Application of a New Generation of Ground Automatic Phase Separation in Commuter Rail

市域铁路采用传统的交流25 kV供电制式,接触网上存在电分相即中性无电区,列车运行通过电分相时出现速度损失、带电闯分相引起弓网拉弧使弓网设备受损以及过电压等问题。本文提出一种地面电子开关自动过分相装置,该装置具有响应速度快、断电时间短、无暂态过程等特点,可有效解决列车过分相问题,且实施性强,具有一定的工程应用推广价值。

The commuter rail adopts the traditional 25 kV AC power supply system,and there are neutral zones in the catenary,which causes speed loss,pantograph-catenary arcing,pantograph-catenary equipment damage and overvoltage when the train with power runs through the neutral zone.This paper presents a new generation of ground electronic switch automatic phase separation device,which has the characteristics of fast response,short power-off time and no transient process.It can effectively solve all problems caused by the train’s passage of the catenary,and has a strong engineering application.It is able to solve effectively the problems occurred when the train is passing through the phase separation,and it is applicable and has a certain value of engineering application.