电子开关过分相装置控制策略研究

Study on Control Strategy for Device of Electronic Switch Type for Passing of Phase Break

在高速、重载铁路以及一些长大坡道铁路,列车过分相时由于机车断电造成牵引力和速度损失较大,制约铁路运输能力提升及铁路供电的稳定性。电子开关地面自动过分相装置采用晶闸管器件,通过控制晶闸管的开断实现两供电臂与中性区之间的供电切换,具有断电时间极短、使用寿命长、供电可靠性高等特点,实现列车过分相时牵引力和速度几乎无损失,显著提高了铁路运输能力,提升了牵引供电技术水平。本文研究电气化铁路电子开关地面自动过分相装置的应用及控制方法。

On some high speed and heavy haul railways with long and steep gradient,the great loss of traction force and running speed due to the electric locomotive is deenergized while passing through the phase break will constraint the railway transportation capability and stability of railway power supply.The power supply switching between one of the two power feeding sections and the neutral section is realized by switching off the thyristor equipped on the wayside device of electronic switch type for passing of the phase break,the device enables the short time of power-cut with more longer service life and more higher power supply reliability.It enables little loss of the traction force and running speed when the locomotive is passing of the phase break,improves dramatically the railway transportation capability,heightens greatly the traction power supply technological level.The paper also studies the application and control methods for the wayside device of electronic switch type device for passing of phase break on electrified railway.