摘要
基于ACPR1000核电机组仪控系统故障导致机组降级运行的设计基准事故,提出5类特定共因故障,并根据连接鲁棒性指标总结出安全级集散控制系统(DCS)环网节点布置改进的方法,将存在共因故障的网络节点制作出共因故障表,按照共因故障概率关系进行相邻排序并布置环网结构,以提高网络连接鲁棒性指标。采用该方法对核电厂安全级DCS网络布置进行调整,提升了该网络结构的健壮性,对核电机组运行的安全性和可靠性具有重要贡献。
Based on the design basis accident of degraded operation of ACPR1000 nuclear power unit caused by instrument and control system fault,five kinds of specific common cause faults are proposed.According to the connection robustness indicator,the improved method of the arrangement of the ring network nodes in the safety level DCS is summarized,and the common cause failure table is made for the network nodes with common cause faults,the adjacent sequencing is carried out according to the probability of common cause faults and the ring network structure is arranged to improve the connection robustness indicator of the network.The method is used to adjust the distribution of safety level DCS network in nuclear power plant,which improves the robustness of the network structure and contributes to the safety and reliability of nuclear power unit operation.
作者
赵建
刘东亮
马志昕
Zhao Jian;Liu Dongliang;Ma Zhixin(State Key Laboratory of Nuclear Power Safety Monitoring Technology and Equipment,China Nuclear Power Engineering Co.,Ltd.,Shenzhen,Guangdong,518172,China)
出处
《核动力工程》
EI
CAS
CSCD
北大核心
2021年第6期148-154,共7页
Nuclear Power Engineering
