专设安全设施驱动可靠性分析  

Analysis of Engineered Safety Feature Actuation Functions Availability

作　　者：陈银萍 田苗 Chen Yinping;Tian Miao(CNNC China Nuclear Power Engineering Co.,LTD.,Beijing,100840,China)

机构地区：[1]中国核电工程有限公司,北京100840

出　　处：《仪器仪表用户》2022年第3期45-48,共4页Instrumentation

摘　　要：保护和安全监测系统(PMS)是核电厂重要的安全级仪控系统。以PMS专设安全设施(ESF)驱动功能为对象,采用马尔可夫(Markov)分析方法,对ESF驱动功能的可用性及PMS设备故障导致电厂误停堆的概率进行分析和计算,找出ESF驱动功能中相对"薄弱"环节,并从运行维护角度给出应对策略和建议,为电厂运行后专设安全设施的可靠运行提供支持。同时,为华龙后续机组等三代核电可靠性分析提供了一种思路。Protection and Safety Monitoring System(PMS) is the safety I&C system. In this paper, the Markov method is applied to analysis both the system-level ESF actuation functions availability and the frequency of spurious plant shutdown caused by random failures of PMS components supporting ESF functions. The “vulnerable” components have been found and some useful suggestions are provided to improve the reliability of PMS ESF functions in this article. This paper provides a method for the reliability analysis of HPR1000 unit.

关 键 词：专设安全设施 可用性 误停堆 

分 类 号：TL362.1[核科学技术—核技术及应用]