基于风险指引的秦山第三核电厂大修优化分析

Risk-informed Optimization Analysis of Outage for Third Qinshan Nuclear Power Plant

秦山第三核电厂低功率和停堆工况一级概率安全评价可以对秦山第三核电厂停堆大修期间的堆芯损坏频率进行定量化的分析,本文使用基于风险指引的秦山第三核电厂低功率和停堆工况一级概率安全评价的模型对该厂1号机组第九次停堆大修期间不同的电厂配置和各类维修活动的不同组合下的风险进行分析比较,对高风险的维修活动给于特别的关注和限制,根据风险大小优化大修计划。

The level 1 probabilistic safety assessment of low power and shutdown conditions for Third Qinshan Nuclear Power Plant can quantitatively analyze the core damage frequency during the shutdown outage of Third Qinshan Nuclear Power Plant.This paper uses the model of the level 1 probabilistic safety assessment of low power and shutdown conditions for Third Qinshan Nuclear Power Plant based on risk-informed technology to analyze and compare the risks of different plant configurations and different combinations of maintenance activities during the ninth shutdown outage of unit 1 in the plant,Give special attention and restrictions to high risk maintenance activities,and optimize the outage plan based on risk.