DCS电源供电系统的可靠性定量分析  

Quantitative Analysis of Reliability for DCS Power Supply System

作　　者：白会贤[1] 牛玉广[1] 刘吉臻[1] 

机构地区：[1]华北电力大学控制科学与工程学院,北京102206

出　　处：《自动化仪表》2009年第7期19-21,共3页Process Automation Instrumentation

基　　金：国家"863"计划资助项目(编号:2007AA041104)

摘　　要：根据DCS电源系统的现状,对目前几种不同的电源设计方案进行可靠性定量分析。通过建立不同DCS电源系统可靠性框图并估算相关的可靠性指标,比较了不同方案下的平均无故障工作时间(MTBF),给出了系统可靠性的分析结果和改进措施,定量分析了改进后的方案。结果表明电源系统的MTBF有了明显的改善。In accordance with current status of DCS power supply systems, quantitative analysis of reliability is conducted for several different design schemes of the power supply. Through establishing the reliability block diagram and estimating related indexes of reliability, the MTBF obtained from different schemes is compared. The analyzing result of systematic reliability and the improving measures are given ; and the reliability of the improved scheme is also analyzed quantitatively. The result indicates that the MTBF is obviously getting better.

关 键 词：可靠性 平均无故障工作时间 电源 定量分析 方案 

分 类 号：TP202.1[自动化与计算机技术—检测技术与自动化装置]