第30卷第4期
12月
2010年
核科学与工程
Chinese Journal of Nuclear Science and Engineering 适于风险监测系统的零压缩
二元决策图基本事件排序方法汪进1,2，王芳1,2，王家群1,2，顾晓慧1,2，殿园3，
Vol.30No.4 Dec.
2010
袁润1.2，李亚洲1.2，胡丽琴1.2，吴宜灿1,2,FDS团队1,2
（1.中国科学技术大学核科学技术学院，安徽合肥230027；
2.中国科学院等离子体物理研究所，安徽合肥230031;3.深圳大学理学院，广东深圳518000）
摘要：风险监测系统需要对核电站风险水平进行实时分析计算，固而快速计算引擎发展是风险监测系统研发成功关键。零压缩二元决策图算法是近年出现的一种概率安全评价中快速求解最小割集方法，而基本事件排序将直接影响到零压缩二元决策图的规模，并最终影响分析计算速度。本文提出一种适用于风险监测系统的基本事件排序方法，该方法充分利用基准风险模型分析结果，并程序实现上述方法，最后通过实际例题说明了其正确性和有效性
关键词：风险监测系统；零压缩二元决策图；故障树：基本事件排序
中图分类号：TL364
文献标志码：A
文章编号：0258-0918(2010)04-0360-05
A variable ordering heuristic for risk monitors based on
zero-suppressed binary decision diagram
WANG Jin'-2, WANG Fangl-2,WANG Jia-qun-,GU Xiao-hui-2,YIN Yuan", YUAN Run'-2,LI Ya-zhoul-,HU Li-qin'?, WU Yi-can'-2,FDS Team'-2
(1. School of Nuclesr Science and Technology, University of Science snd
Technology of China, Hefei of Anhui Prov. 230027, China;
2. Institute of Plasma Physies, Chinese Academy of Sciences, Hefei of Anhui Prov. 230031, China;
3. School of Physics, Shenzhen University, Shenzhen of Guangdong Prov, 518000, China)
Abstract: The probabilistic safety assessment model using for determining the instantaneous risk in a risk monitor are much more complex than the operational model using for determining the average risk. Therefore the development of a fast calculation engine is indispensable and challengeable. the scale of zero-suppressed binary decision diagram. In this paper an optimized method of variables ordering, which fully utilized that features of operational model, was proposed. Not only the theoretical demonstration but also the applications were also brought out.
Key words: risk monitor;ZBDD; fault tree; variables ordering 收稿日期：2010-10-25：修回日期：2010-11-25
作者简介：汪进（1987--），男，期北成宁人，硕士研究生，主要从事核电站概率安全评价研究工作 360