自动调压型不对称高压脉冲轨道电路研究

Research on Asymmetrical High-voltage Pulse Track Circuit with Automatic Voltage Regulation

不对称高压脉冲轨道电路作为目前轨道电路分路不良问题的最主要解决方案,需要根据现场钢轨不同生锈程度,通过选择不同的扼流变压器变比以及发码器的电压档位以满足轨道电路的调整以及分路要求,并且由于车站进路的实时调整,固定的调整方法并不能一成不变,需要进行动态管理。分析不对称高压脉冲轨道电路传输线路,明确不同的扼流变压器变比对轨道电路分路的影响,获得最优的调整方案,并通过对受电端继电器电压的采集分析,实现送电端发码器电压的自动调整,从而实现不对称高压脉冲轨道电路的免维护管理。

As one of the main solutions to poor shunting of track circuit,asymmetric impulse track circuit,by selecting different ratios of choke transformer and sending device to satisfy the requirements of track circuit,often changes as the station route changes,so it needs dynamic management.This paper,by analysing the transmission line of asymmetric impulse track circuit and defi ning different ratios of choke transformer to the infl uences of shunting of track circuit,propuses a best adjustment alternative.Also,it realizes the automatic adjustment of sending device and free maintenance-free management of asymmetric impulse track by collecting and and anlysing the voltage of the rlay in the receiving end.