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1.电网防灾减灾全国重点实验室(长沙理工大学),湖南省长沙市 410114
2.湖南工程学院电气与信息工程学院,湖南省湘潭市 411104
Received:26 May 2023,
Revised:2023-11-29,
Published Online:28 March 2024,
Published:25 June 2024
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梁皓澜,刘东奇,曾祥君等.电力高级量测体系网络攻击致损路径图构建及风险评估[J].电力系统自动化,2024,48(12):89-99.
LIANG Haolan,LIU Dongqi,ZENG Xiangjun,et al.Construction of Damage Path Diagram and Risk Assessment of Cyber-attack on Power Advanced Metering Infrastructure[J].Automation of Electric Power Systems,2024,48(12):89-99.
梁皓澜,刘东奇,曾祥君等.电力高级量测体系网络攻击致损路径图构建及风险评估[J].电力系统自动化,2024,48(12):89-99. DOI: 10.7500/AEPS20230526001.
LIANG Haolan,LIU Dongqi,ZENG Xiangjun,et al.Construction of Damage Path Diagram and Risk Assessment of Cyber-attack on Power Advanced Metering Infrastructure[J].Automation of Electric Power Systems,2024,48(12):89-99. DOI: 10.7500/AEPS20230526001.
高级量测体系(AMI)是新型电力系统的重要组成部分,随着大量智能终端和异构通信链路广泛接入,网络攻击的风险与日俱增。因此,提出电力AMI网络攻击致损路径图构建及风险量化评估方法,量化分析网络攻击对系统的影响。首先,考虑AMI中的3种网络攻击场景,构建了各场景攻击致损路径图及贝叶斯攻击图。其次,考虑到漏洞利用的难度和攻击者的技术水平,建立了漏洞平均攻破时间(MTTC)模型,计算各攻击目标的攻破概率。然后,建立了针对AMI虚假数据注入的负荷损失评估模型,求解出负荷削减问题,并结合攻击概率提出了安全风险综合定量评估模型。最后,基于IEEE 39节点系统,对比分析了不同级别攻击者在AMI不同攻击致损路径下的MTTC,计算了网络攻击下系统的安全风险值,验证了所提方法的有效性。
Advanced metering infrastructure (AMI) is a key component of the new power system. With the wide access of a large number of intelligent terminals and heterogeneous communication links
the risk of cyber-attacks is increasing. Therefore
a method of cyber-attack damage path diagram construction and quantitative risk assessment for power AMI is proposed to quantitatively analyze the impact of cyber-attacks on power system. Firstly
considering three kinds of cyber-attack scenarios in AMI
the attack damage path diagram and Bayesian attack diagram of each scenario are constructed. Secondly
considering the difficulty of vulnerability exploitation and the skill level of attackers
the mean time to compromise (MTTC) model of vulnerability is established to calculate the attack probability of each attack target. Then
a load loss evaluation model for false data injection in AMI is established
and the load reduction is solved. Combined with the attack probability
a comprehensive quantitative assessment model of security risk is proposed. Finally
based on the IEEE 39-bus system
the MTTC of different levels of attackers in different attack damage paths of AMI is compared and analyzed
and the security risk value of the system under cyber-attacks is calculated
which verifies the effectiveness of the proposed method.
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