高可靠性集中热备份UPS供电系统

为解决现代化工装置中DCS系统供电的可靠性问题 ,提出了一种可靠性非常高的集中热备份UPS(Un interruptiblePowerSystem)供电系统方案 ,它解决了UPS单机运行时自身故障造成的停电问题和并机运行时输出电源质量下降的问题。它由n台常用UPS和 1台集中备用UPS0 组成 ,当常用UPS中有 1台发生故障或有几台同时发生故障时 ,自动不间断地切换到集中备用UPS0 上 ,由UPS0 对负载供电。在UPS品牌、负载功率、负载性质和使用环境相同的条件下 ,集中热备份UPS供电系统与常见的双机并联冗余UPS供电系统相比较 ,它具有高可靠性、高质量的输出电源、良好的故障隔离功能和优良的抗超载抗短路能力等特点 ,是DCS系统实用的理想的供电系统 ,是大型石化企业首选的供电方案

Centralized hot-backup UPS power supply system with high reliability

To solve the power supply reliability of DCS system in modern chemical plant, a centralized hot backup UPS power supply system with extra high reliability was put forward, which solves the power failure due to self fault when single UPS operates and quality declining of output power supply when UPS parallel with others operates. The system is composed of n UPS and one centralized and standing by UPS 0. When one normal UPS or several UPS at same time bring trouble, the system automatically and uninterruptedly switches to the UPS 0, so the power supply to the load is supplied by the USP 0. In the same conditions of UPS brand, load power, load quality and applied environment, the centralized hot backup UPS power supply system comparing with common redundant paralleled double UPS power supply has the performances of high reliability, output power supply with high quality, fine isolating function from fault, fine anti overload and anti short circuit.So the centralized hot backup UPS power supply system is the first choice of power supply solution in large scale petrochemical enterprises.