摘要
目前,核电厂已经广泛采用基于网络和软件的数字化仪表和控制系统(简称“仪控系统”)。数字化仪控系统作为核电厂的神经中枢,一旦遭受网络攻击,将对核电厂的安全性、可用性造成风险。因此,应采用适当的方法对核电厂数字化仪控系统的网络安全风险进行分析评估,以进一步提高核电厂数字化仪控系统防范风险的能力。首先,将网络安全风险分析方法分为基于公式的方法、基于非图形模型的方法、基于图形模型的方法这三类进行文献综述;然后,从动态分析、风险量化、数据来源、核安全与网络安全四个方面进行了适用性分析。该研究为核电厂数字化仪控系统选择适当的网络安全风险分析方法提供了参考。
Nowadays,digital instrument and control systems based on networks and software(referred to as“I&C systems”)are widely adopted in the nuclear power plants.As the central nervous systems of a nuclear power plant,the digital I&C system will cause risks to the safety and availability of the nuclear power plant once it suffers cyber attacks.Therefore,appropriate analysis methods should be used to analyze and evaluate the cyber security risks to further improve the ability of the digital I&C systems of the nuclear power plant to prevent risks.Finstly,the cyber security risk analysis methods are devided into three categories:formula-based methods,non-graphical model-based methods,and graphical model-based methods for literature review.Then,the applicability analysis is carried out from four aspects:dynamic analysis,risk quantification,data sources,nuclear safety and cyber security.The research provides a reference for choosing an appropriate cyber security risk analysis method for the digital I&C systems of nuclear power plants.
作者
黄晓津
田宇琨
李江海
HUANG Xiaojin;TIAN Yukun;LI Jianghai(Institute of Nuclear and New Energy Technology,Tsinghua University,Beijing 100084,China;Key Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education,Beijing 100084,China)
出处
《自动化仪表》
CAS
2022年第5期1-7,共7页
Process Automation Instrumentation
关键词
核电厂
数字化仪表与控制系统
信息物理系统
网络安全
风险分析
网络安全标准
Nuclear power plant
Digital instrument and control system
Cyber physical system(CPS)
Cyber security
Risk analysis
Cyber security standard
