摘要
传统意义上核电厂数字化仪控系统主要依靠提升设备的可靠性来满足电厂安全目标。随着监管要求的逐步提高,在提升设备可靠性基础上,基于概率论技术的设计手段逐步成为核电厂安全设计新的研究方向。本文应用概率安全评价(PSA)技术,对典型电厂始发事件进行分析及研究,之后对仪控设计方案整体进行PSA建模,再将其置于电厂PSA模型中,通过定量评估分析,识别薄弱环节,给出优化改进措施。在此基础上提出了一套确保核电厂仪控系统满足整体安全目标的可靠性设计流程。
Traditionally,the NPP Digital I&C mainly relies on improving the reliability to meet the safety objectives of the plant.With the improvement of regulatory requirements,based on the improvement of equipment reliability,the design method based on probability theory technology has gradually become a new research direction of the safety design for nuclear power plants.Based on the analysis and research of typical power plant initial events,this paper applied the probabilistic safety assessment(PSA)technology to carry out PSA analysis and modeling,and integrate it in the PSA model of the power plant.Through the quantity analysis results,the weak points are identified,and the optimization modification is given.On this basis,a set of reliability design process for realizing the overall safety objective of NPP Digital I&C is proposed to enhance the overall safety of nuclear power plants.
作者
江国进
李富
孙伟
孙永滨
莫昌瑜
Jiang Guojin;Li Fu;Sun Wei;Sun Yongbin;Mo Changyu(Tsinghua University,Beijing 100084,China;Shenzhen China Nuclear Power Design Co.,Ltd.,Shenzhen,Guangdong,518045,China;CTEC,Beijing,100094,China)
出处
《核动力工程》
EI
CAS
CSCD
北大核心
2019年第2期99-104,共6页
Nuclear Power Engineering
基金
国家科技重大专项(2011ZX06004-030)
