第1期
第36卷 2016年
2月
核科学与工程
Nuclear Science and Engineering
HFETR供电系统概率安全评价
Vol.36No.1
Feb.2016
周春林，张江云，郑大吉，王文龙，邹德光，李子彦，陈启兵
（中国核动力研究设计院一所，四川成都610005）
摘要：反应堆供电系统失效可导致堆芯熔毁等严重事故后果。本工作应用RiskSpectrum软件，对高通量工程试验堆（简称HFETR)供电系统开展概率安全评价(PSA)工作。通过整合部分法考虑共因故障，建立了以全场断电（SBO)为顶事件的系统故障树模型，并定量给出HFETR发生SBO概率为7.49X 10-*，证明HFETR现役供电系统安全可靠。同时，以供电系统模型及运行可靠性数据为基础，进行了割集、重要度、敏感度等分析，较全面地分析了现役供电系统的风险水平，为HFETR供电系统变更、升级和改造提供了重要参考。
关键调：高通量工程试验堆；概率安全评价；供电系统；全场断电
中图分类号：TL364
文章标志码：A
文章编号：0258-0918(2016)01-0027-08
PSAforthePowerSupplySystemofHFETR
ZHOU Chun-lin, ZHANG Jiang-yun,ZHENG Da-ji, WANG Wen-long,
ZOU De-guang,LI Zi-yan, CHEN Qi-bing
(Nuclear Power Institute of China, Chengdu, Sichuan Prov, 610005)
Abstract: The failure of reactor power supply system could cause severe consequence like core damage. Employing the RiskSpectrum software,HFETR power supply system is analyzed by using probability safety assessment （PSA） methodology. Considering the common cause failures (CCF) by employing unified partial method(UPM), the power supply system PSA model is built via constructing the fault trees with the SBO as the top event. Meanwhile, the consequentially quantity failure probability is presented as 7. 49 X 10-8, which proves that the power supply system is safe and reliable By input the reliability data from the HFETR operation, and the unavailability of power supply system is presented. Furthermore, the analysis also involves in the minimal cut set (MCS) analysis, importance measures and sensitivity calculations. Those analyses present an overview of the current power supply system risk level, and provide a considerable reference for the system change and update issues.
修回日期：2014-12-29
作者简介：周春林（1982—），男，四川仪陇人，工程师（助理研究员），2012年7月及12月分别毕业于法国卡昂大学GANIL-CIMAP 实验室及兰州大学核学院现代物理系，获理学博士学位，现主要从事研究堆概率安全评价
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