原子能科学技术Issue(7)：1237-1242,6.DOI:10.7538/yzk.2015.49.07.1237
核电站最佳估算安全分析中的不确定度评估方法分析
Analysis on Uncertainty Evaluation Method in Best Estimate Safety Analysis of Nuclear Power Plant
摘要
Abstract
The uncertainty evaluation is a key step of best estimate safety analysis for nuclear power plant .The origins of the uncertainty and the uncertainty evaluation meth‐ods were described .The methods could be categorized into statistical type and determin‐istic type ,and the general procedure of statistical evaluation method was summarized . Various uncertainty evaluation methods were analyzed and compared from the aspect of computational cost and accuracy .The analysis result shows that the method coupling the nonparametric sampling with a sophisticated high‐fidelity thermal‐hydraulic model may be the best choice for the uncertainty evaluation in best estimate analysis at pres‐ent .Under the condition that the “95/95 criteria” is satisfied ,such a method is easy to implement and the cost is relatively low .关键词
最佳估算/不确定度/统计方法/CSAUKey words
best estimate/uncertainty/statistical method/CSAU分类
能源科技引用本文复制引用
陈炼,房芳芳,邓程程,崔成鑫..核电站最佳估算安全分析中的不确定度评估方法分析[J].原子能科学技术,2015,(7):1237-1242,6.基金项目
大型先进压水堆及高温气冷堆核电站重大专项资助项目 （）
