全电子执行单元冗余供电研究

针对高原铁路全电子执行单元系统供电问题,该文提出2种高可靠性的供电方案。第一种方案是在电源屏上新增一路直流转换模块,为执行单元提供独立的额外供电,即直流双路直供方案。第二种方案是在保持电源屏供电方式不变的基础上,将执行机柜的单断路器升级为双断路器,通过2台执行机柜的互环连接,实现用电的冗余,即执行机柜互环供电方案。这2种方案的目标都是提升全电子执行单元用电的可靠性和稳定性。综合比较,执行机柜互环供电方案在高原铁路执行单元电源改造中更加具备可行性。该文的研究对高原铁路全线全电子执行单元供电方式的改造具有指导意义。

In order to solve the problem of power supply of all-electronic execution unit system of plateau railway,two power supply schemes with high reliability are proposed in this paper.The first scheme is to add a DC conversion module to the power supply screen to provide independent additional power supply for the execution unit,that is,the DC dual direct power supply scheme.The second scheme is to upgrade the single circuit breaker of the executive cabinet to a double circuit breaker on the basis of keeping the power supply mode unchanged,and realize the redundancy of power consumption through the interring connection of the two executive cabinets,that is,to implement the cabinet interloop power supply scheme.The goal of both schemes is to improve the reliability and stability of power consumption in all-electronic execution units.By comprehensive comparison,the implementation of cabinet interloop power supply scheme is more feasible in the transformation of plateau railway executive unit power supply.The study of this paper is of guiding significance for the transformation of the power supply mode of the all-electronic executive unit of the plateau railway.