基于蒙特卡罗方法事故进程分析的CPR1000全厂断电事故PSA  

PSA of CPR1000 SBO Accident Based on Monte Carlo Accident Process Analysis

作　　者：王照 杨建峰[1] 冯丙辰 WANG Zhao;YANG Jianfeng;FENG Bingchen(Suzhou Nuclear Power Research Institute,Suzhou 215000,China)

机构地区：[1]苏州热工研究院有限公司,江苏苏州215000

出　　处：《原子能科学技术》2020年第11期2098-2106,共9页Atomic Energy Science and Technology

基　　金：国家重点研发计划资助项目(2018YFB1900304)。

摘　　要：本文对CPR1000核电厂全厂断电事故下可能出现的事故序列的进程建立数学模型,使用蒙特卡罗方法,编写程序计算了每种事故进程中交流电源及时恢复的可能性。根据计算结果对全厂断电事故进行了概率安全分析(PSA)。结果表明,使用蒙特卡罗方法对全厂断电事故进程进行动态分析,可使PSA更贴近核电厂实际情况,有利于更好地认知核电厂整体风险和全厂断电风险。A mathematical model for the process of possible accident sequence in the CPR1000 nuclear power plant was established,and the Monte Carlo method was used to programming codes to calculate the possibility of timely recovery of AC power in each accident process.According to the calculation results,probabilistic safety analysis(PSA)of the station black out(SBO)was conducted in the paper.The results show that using Monte Carlo method to analyze the process of SBO can make the PSA more in line with the actual situation of the nuclear power plant.And the overall risk of the nuclear power plant and the risk of SBO can be understood better by using the method.

关 键 词：核电厂 概率安全分析 蒙特卡罗方法 全厂断电 

分 类 号：TL364.5[核科学技术—核技术及应用]