Vulnerability Analysis of Power Systems Under Physical Deliberate Attacks Considering Geographic-Cyber Interdependence of the Power System and Communication Network

Zeraati, Mehdi; Aref, Zahra; Latify, Mohammad Amin

doi:10.1109/jsyst.2017.2761844

Cited by 33 publications

(20 citation statements)

References 22 publications

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“…On the other hand, OPF strategies to redispatch generator and branch power flow is employed by defenders. Therefore, the mathematical model of microgrid confrontation in accordance with References [24][25][26][27][28][29] is formulated as follows:…”

Section: Confrontation With Symmetric Informationmentioning

confidence: 99%

Asymmetric Information in Military Microgrid Confrontations—Evaluation Metric and Influence Analysis

2020

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Due to the wide integration of information technology in equipment and weapons, a stable and reliable power supply has become one of the pivotal factors in modern warfare to achieve victory. As a critical infrastructure to provide continuous energy supply during long-duration electrical outage, military microgrid always suffers fierce attacks from the enemy. In order to improve the defense effect, a lot of investigation has been made into resource allocation, Distributed Generator (DG) distribution, network reconfiguration, and so forth. Nevertheless, the information gap between defender and attacker has not been considered in the literature. Therefore, this paper is intended to highlight this information mismatch to appeal for community attention and evaluate its capability to improve defensive performance. Firstly, a novel assessment metric is proposed to identify the level of asymmetric information. Then, an Attacker-Defender (AD) model is developed to describe the zero-sum game between two opposite agents, which is subsequently tackled with dual theory and big-M method. Finally, three cases ranging from 6-bus to 57-bus are utilized for numerical experiments to analyze the influence of asymmetric information on military microgrid confrontation. Results on various levels of attack strength validated the effectiveness and significance of asymmetric information in eliminating the attack damage and improving the defensive performance.

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Section: Confrontation With Symmetric Informationmentioning

confidence: 99%

Asymmetric Information in Military Microgrid Confrontations—Evaluation Metric and Influence Analysis

2020

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“…Derive an optimal solution x k + 1 and (η k + 1 , P 1 , …, P k , δ 1 , …, δ k ). Then, update LB = c T x k + 1 + η k + 1 step 3 fix x k + 1 and solve sub-problem (14), yield an optimal value Q(x k + 1 ) and contingency ŷ In contrast, for the proposed model, the load at bus 6 is likely to be shed due to the disconnection made by the possible contingencies, resulting in only 56.12 MW LS. This shedding is not the worst, but the probability is relatively large (i.e.…”

Section: Comparison Of Two Models On Decision Makingmentioning

confidence: 99%

“…In [11], a Q-learning-based simulation method is employed to analyse system vulnerability with consideration of physical system behaviours and to harden the entire system's performance. Manshadi and Khodayar [12], Sayyadipour et al [13] and Zeraati et al [14] find system weak links through a bi-level model (i.e. the power grid interdicting problem).…”

Section: Introductionmentioning

confidence: 99%

“…On the basis of the prior probabilistic information, we propose an RA-based tri-level optimisation model for transmission system hardening, which makes the fundamental difference from the traditional bi-level [12][13][14] and tri-level [16][17][18][19][20][21][22] optimisation models. The proposed model in this paper is to hedge the transmission system to improve the level of reliability.…”

Section: Introductionmentioning

confidence: 99%

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Risk assessment‐based long‐term transmission system hardening under prior probabilistic information

Ding

Chen³

et al. 2018

IET Generation, Transmission & Distribution

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“…A new model based on binary optimization was proposed to assess the vulnerability of the power system, which was a geographical network interdependent with the communication network. The numerical results showed that the power system vulnerability might increase considering the physical network dependencies, and the location of the dispatch center can mitigate the impact of certain attacks [9]. [9] lacked an accurate description of the information network and used two weighting coefficients to describe the delay for possible communication delays.…”

Section: Introductionmentioning

confidence: 99%

Modeling and Analysis of Cascading Failures in Cyber-Physical Power Systems Under Different Coupling Strategies

Pan

et al. 2022

IEEE Access

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The cyber-physical power systems(CPPS) may experience cascading failures due to damage to power transmission lines. This paper focuses on modeling and analysis of CPPS with grid-line random failure under different coupling strategies to reveal the coupling mechanisms between the power grid and the information network. The CPPS mainly includes the power grid, information network, and the coupling connections between them. An uncertain failure mechanism is introduced in the cascading failures model to determine the failed power lines. The DC optimal power flow calculates and distributes the power flows to determine the tripping rates of power lines. A new comprehensive metric is proposed to assess the critical nodes, which considers both topology and state information of the power grid. According to some assessment metrics, the nodes in the power grid and information network are ranked. The CPPS model is constructed by coupling the power and information nodes in specific sequences. The cascading failures of CPPS are simulated when the power lines suffer random attacks to obtain the most robust coupling method for typical coupled CPPSs.INDEX TERMS Critical nodes assessment metrics, cyber-physical power systems(CPPS), information network, power grid, robustness, stochastic cascading failures.

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Vulnerability Analysis of Power Systems Under Physical Deliberate Attacks Considering Geographic-Cyber Interdependence of the Power System and Communication Network

Cited by 33 publications

References 22 publications

Asymmetric Information in Military Microgrid Confrontations—Evaluation Metric and Influence Analysis

Asymmetric Information in Military Microgrid Confrontations—Evaluation Metric and Influence Analysis

Risk assessment‐based long‐term transmission system hardening under prior probabilistic information

Modeling and Analysis of Cascading Failures in Cyber-Physical Power Systems Under Different Coupling Strategies

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