基于结构重用的事件树复杂边界条件处理方法

事件树分析是核电厂概率安全分析中最常用的方法之一,在运用该方法进行定性定量分析时首先需要将模型中的序列/后果链接形成相应的序列/后果故障树,该过程中一般通过边界条件和成功分支处理准则等设置来保证最终故障树达到指定要求。为解决由于复杂边界条件设置导致的最终故障树结构冗余问题,本文提出了一种基于结构重用的事件树复杂边界条件处理方法。经大量实例验证,该方法完全正确,可显著提高概率安全分析软件事件树分析速度,并为核电厂的实时风险分析提供了技术基础。...

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Bibliographic Details
Published in核技术 Vol. 39; no. 7; pp. 83 - 87
Main Author 许银龙 陈珊琦 王家群 汪进 王芳
Format Journal Article
LanguageChinese
Published 中国科学院核能安全技术研究所中子输运理论与辐射安全重点实验室 合肥230031 2016
中国科学技术大学 合肥230027%中国科学院核能安全技术研究所中子输运理论与辐射安全重点实验室 合肥230031
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ISSN0253-3219
DOI10.11889/j.0253-3219.2016.hjs.39.070602

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Summary:事件树分析是核电厂概率安全分析中最常用的方法之一,在运用该方法进行定性定量分析时首先需要将模型中的序列/后果链接形成相应的序列/后果故障树,该过程中一般通过边界条件和成功分支处理准则等设置来保证最终故障树达到指定要求。为解决由于复杂边界条件设置导致的最终故障树结构冗余问题,本文提出了一种基于结构重用的事件树复杂边界条件处理方法。经大量实例验证,该方法完全正确,可显著提高概率安全分析软件事件树分析速度,并为核电厂的实时风险分析提供了技术基础。
Bibliography:XU Yinlong, CHEN Shanqi, WANG Jiaqun, WANG Jin, WANG Fang (1Key Laboratory of Neutronies and Radiation Safety, Institute of Nuclear Energy Safety Technology, Chinese Academy of Sciences, Hefei 230031, China; 2University of Science and Technology of China, Hefei 230027, China)
31-1342/TL
Probabilistic safety analysis, Event-tree, Boundary condition, RiskA
Background: Classical fault-tree link method is usually used in event-tree analysis to convert sequence/consequence into final sequence/consequence fault-tree models, during which boundary condition and success branch treatment are set to ensure the final model satisfying certain requirement. Purpose: This study aims to solve the structure redundancy problem caused by complex boundary setting in the final fault trees. Methods: Based on structure reuse, a processing method of complex boundary condition in event-tree is proposed. Results: Processing speed of this method is significantly improved for event tree analysis under the condition that the qualitative and
ISSN:0253-3219
DOI:10.11889/j.0253-3219.2016.hjs.39.070602