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Vulnerability Assessment of Distributed Load Shedding Algorithm for Active Distribution Power System Under Denial of Service Attack

查看全文 作　　者：Weiwei [1,2]Xu;Jiaming [1]Weng;Boliang [3]Lou;Xiaoming [3]Huang;Hongyang [3]Huang;Jun [1]Wu;Dan [4]Zhou 高影响力作者 机构地区：[1]the School of Electronic Information and Electrical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;[2]State Grid Zhejiang Electric Power Research Institute,Hangzhou 310014,China;[3]the State Grid Zhejiang Electric Power Research Institute,Hangzhou 310014,China;[4]the College of Information Engineering,Zhejiang University of Technology,Hangzhou 310023,China高影响力机构 出　　处：《CSEE Journal of Power and Energy Systems》索引2023年第9卷第6期,共10页高影响力期刊 基　　金：the National Key Research and Development Program of China(2017YFB0903000);the National Natural Science Foundation of China(No.51677116);Key Research and Development Program of Zhejiang Province under Grant 2019C01149,in part by the Science and Technology Project of State Grid Corporation of China under Grant 5211DS180031. 摘　　要：In order to deal with frequency deviation andsupply-demand imbalance in active distribution power system, inthis paper a distributed under frequency load shedding (UFLS)strategy is proposed. Different from conventional centralizedUFLS schemes, no centralized master station gathering all thebuses’ information is required. Instead, each bus decides itsown load shedding amount by only relying on limited peer-topeer communication. However, such UFLS strategy may sufferfrom some unexpected cyber-attacks such as integrity attacksand denial of service (DoS) attack. The latter DoS attack aimsto degrade the system performance by jamming or breakingthe communication, which is of high probability to happen inpractical power system. To assess the vulnerability of proposeddistributed UFLS algorithm, the effect of DoS attack on distributed average consensus algorithm is theoretically derived,which indicates that the final consensus value can be estimatedby a given attack probability. It is also investigated that such DoSattack does harm to the load shedding amount and finally affectsthe system frequency performance in the active distributionpower system. Several case studies implemented on an IEEE33-bus active distribution power system are conducted to verifythe effectiveness of the theoretical findings and investigate thevulnerability of the considered power system. 关 键 词：Active distribution power system cyber security denial of service attack distributed average consensus load shedding
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