EPS应急电源装置改造

Modification of EPS Emergency Power Supply Device

在地铁特殊的工作环境和较高的安全要求下,EPS采用热后备式工作方式更能实现后备电源的功能,保障人员疏散的应急照明。冷后备式EPS改造成热后备式工作方式,以修改控制原理和更换关键元器件(如逆变器、控制板件)为切入点,在原设备参数显示、数据上传功能基础上增加市电/蓄电池电源切换功能和逆变器热后备式启动功能。

Considering special operational environment and high security demand of the metro,the hot backup type of EPS can perform better function and guarantee emergency lighting for evaluation of people. The cold backup type of EPS can be transformed into the hot backup type through modification of its control principle and replacement of key elements（such as inverter and control board） so that the function of switching between commercial power and battery as well as the hot backup start of the inverter can be added to parameter display and data upload already available with the original equipment.