
第31卷增刊2 2011年12月
核科学与工程
Chinese Journal of Nuclear Science and Engineering
Vol.31Suppl.2
Dec.
2011
基于概率论方法的汽轮机保护
系统硬件失效分析郭智武,孙伟,李悠然,张焕欣(深圳中广核工程设计有限公司,广东深圳518045)
摘要,岭澳核电站二期采用电渡调节方式对汽轮机进行控制和保护,本文基于概率论,采用故障树方法对汽轮机保护系统硬件可靠性进行定量分析和定性分析,得出汽轮机保护系统硬件失效概率以及最有可能导致其失效的最小割集(满弱环节、,从而为核电厂的概率安全分析以及汽轮机组日常维护等提供量化的数据支持
关键词,概率论,GSE,故障树,跳闸,割集,重要度分析,
中图分类号:TM623
文章标志码;B
文章编号:0258-0918(2011)S2-0186-07
The hardwarefailureanalysis ofturbineprotectionsystem
based onprobabilitytheorymethod
GUO Zhiwu, SUN Wei, LI Youran, ZHANG Huan-xin
(China Nuclear Power Design Co, , Ltd. (Shenzhen), Shenzhen of Guangdong Prov, 518045, China)
Abstract: The electrohydraulic modulation was used to control and protect the turbine in Ling Ao II. In this paper, the fault tree method was introduced to deal with both quantitative and qualitative analysis for hardware reliability of turbine protection system based on probability theory, then failure probability for hardware of turbine protection system will be worked out, and the minimal cut sets which will be the most case leading to hardware failure will be acquired, so as to provide useful quantitative data supports for probabilistic safety analysis and daily maintenance of turbine generator.
Key words: probability theory; GSE; fault tree; trip; cut set; importance analysis
汽轮机是发电厂中将热能转化为机械能驱
动发电机做功的重要设备它的正常启动和安全停机关系到核电厂的安全运行和经济效益汽轮机保护系统可以对汽轮发电机组提供有效
控制和保护,使其在发生某些预定故障时可以提供有效的停机手段(跳闸、,因此,正确,合理的分析和评价汽轮机保护系统可靠性是必要的,它直接关系到汽轮机能否可靠,及时地实现
收日期;2011-10-25;修回日期,2011-11-10
作害简介,郭智武(1980—),男,潮北人,工程师,硕士,现主要从事核电厂数字化仪控系统可靠性研究工作 186