基于RISMC分析方法的全厂断电叠加汽动辅助给水失效事故研究  

Study on the Accident of SBO Superimposed by Steam-driven Auxiliary Feedwater Failure Based on RISMC Analysis Method

作　　者：王照 李琼哲 郭建兵[1] Wang Zhao;Li Qiongzhe;Guo Jianbing(Nuclear Safety and Operation Technology Center,Suzhou Nuclear Power Research Institute Co.,Ltd.,Suzhou,Jiangsu,215000,China)

机构地区：[1]苏州热工研究院有限公司核安全与运行技术中心,江苏苏州215000

出　　处：《核动力工程》2023年第6期186-192,共7页Nuclear Power Engineering

基　　金：国家重点研发计划(2018YFB1900304)。

摘　　要：为研究某在运CPR1000核电机组在全厂断电(SBO)叠加汽动辅助给水失效事故下的安全性能,采用风险指引的安全裕度特性(RISMC)分析方法,结合事故情景分析、系统可靠性分析、人因工程分析、热工水力学分析,使用CARS软件耦合RELAP5程序对机组在事故情况下的安全裕度进行了量化。研究得到了核电机组在事故情景下的安全性能和机组运行的安全边界。研究结果表明,RISMC分析方法可以有效分析机组的安全特性,为核电厂的运维和决策提供支持。In order to study the safety performance of an in-service CPR1000 nuclear power unit under station blackout(SBO)accident superimposed by steam-driven auxiliary feed water failure,the risk-informed safety margin characterization(RISMC)analysis method is adopted;combining with accident scenario analysis,system reliability analysis,human factor engineering analysis and thermal hydraulic analysis,CARS software coupled with RELAP5 code is used to quantify the safety margin of the unit under accident.The safety performance and safety boundary of the unit under accident scenario is studied.The results show that the RISMC analysis method can effectively analyze the safety characteristics of units,and provide support for the operation and maintenance decision-making of nuclear power plants.

关 键 词：风险指引的安全裕度特性(RISMC) 燃料包壳峰值温度(PCT) 全厂断电(SBO) 安全分析 

分 类 号：TL364[核科学技术—核技术及应用]