大众捷运车站供电可用度及可靠度分析

Availability and Reliability Analysis of MRT Station Power Supply System

首先建立大众捷运车站供电系统可用度模式,其次探讨供电到车站非必要负载(NEL)、必要负载(EL)以及维生负载(VL)的可用度和可靠度。当可用度不考虑维修能量时退化成可靠度。通过计算机仿真数值分析,结果表明:车站VL负载之可用度/可靠度最高,EL负载可用度/可靠度次之,NEL负载可用度/可靠度最低。

There are two folds of purpose in this technical paper. The first purpose is to establish an availability model of MRT station power supply system. The second one is to study the power supply availability / reliability behaviors of station with Non-Essential Load（ NEL）,Essential Load（ EL） and Vital Load（ VL） respectively. Without supplying maintenance capability,availability degrades into reliability. Computer simulations numerically confirm the design of power supply system that VL receiving power is the most available / reliable but NEL the most unavailable / unreliable,and availability / reliability of EL is higher than that of NEL and lower than that of VL.