关于城市轨道交通站台屏蔽门系统后备电源必要性的分析探讨

Analysis on Necessity of Standby Power Supply in Subway Shield Door System

城市轨道交通站台屏蔽门系统后备电源[UPS(uninterrupted power supply,不间断电源)及其备用蓄电池]由于在应急状态下才使用,使用频率较低,所以有人提出取消后备电源以减少投资。本文通过有无后备电源设计方案的比较,对取消后备电源可能存在的问题进行了分析探讨,提出了不应取消的观点,供同行参考。

It is proposed that the uninterrupted power supply （UPS） and its backup battery of shield door system in urban rail transit platform should be cancelled to reduce investment because they are only used in the emergency state, presenting a low application frequency. Through comparing the design proposal with and without UPS, this paper analyzes and discusses the issues in case of canceling UPS and proposes that UPS should not be canceled.