摘要
核电堆芯水位监测系统是对核反应堆进行水位实时精准测量的专用工具,不仅对于技术的要求比较高,其可靠性对核反应堆的运行也有重要影响。但是目前的可靠性分析多数采用滞后的估算方法,文中针对水位监测系统多状态的特点,提出一种将Markov模型和GO法结合的方法。首先通过Markov状态空间法对水位监测系统的可靠性进行分析建模,求得系统处于各个运行状态下的概率,然后根据系统原理构建GO图,用GO法实现了多状态下的水位监测系统可靠性分析。最后以某核电站水位监测系统为算例,验证了该方法,为水位监测系统可靠性的分析提供了有效的手段。
Nuclear reactor core water level monitoring system is a special tool for real-time and accurate measurement of nuclear reactor water level,which not only requires high technology,but also has an important impact on the operation of nuclear reactor.However,the current reliability analysis mostly adopts the lag estimation method.In view of the multi-state characteristics of water level monitoring system,a method combining Markov model with GO method is proposed.Firstly,analysis and modeling of reliability of water level monitoring system by Markov method,and the probability of the system in each operation state is obtained.Then GO method is constructed according to the system principle,and the reliability analysis of multi-state water level monitoring system is realized by GO method.Finally,the accuracy of this method is proved by taking a water level monitoring system of a nuclear power plant as an example.It provides an effective means for reliability analysis of water level monitoring system.
作者
孙凌宇
刘策
朱丽莉
SUN Ling-yu;LIU Ce;ZHU Li-li(School of Mechanical Engineering,Hebei University of Technology,Tianjin 300131)
出处
《机械设计》
CSCD
北大核心
2019年第S02期165-170,共6页
Journal of Machine Design
基金
国家重点研发计划“重大科学仪器设备开发”重点资助专项(2017YFF0109005).
作者简介
孙凌宇(1978—),男,副教授,博士,研究方向:工业测控技术。E-mail:Sunly78@126.com;通信作者:刘策(1994—),男,硕士研究生,研究方向:工业测控技术。E-mail:liuceok@126.com
