Reliability Assessment of Cyber–Physical Distribution Systems Considering Cyber Disturbances

Zhou, Bo; Cai, Yating; Zang, Tianlei; Wu, Jiale; Sun, Baoqing; Chen, Shi

doi:10.3390/app13063452

Cited by 7 publications

(2 citation statements)

References 30 publications

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“…In functional assessment criteria, the load loss of the system [93] is currently the commonly used criterion for functional assessment, since the main function of the system is to provide electrical energy to the users. For instance, the generalized system average interruption frequency index, generalized system average interruption duration index, generalized expectation of energy not supply, and generalized average service availability index were proposed in [94] to describe the power supply capability of cyber-physical power from the perspective of functional assessment criteria after being subjected to network disturbances.…”

Section: Ermentioning

confidence: 99%

Current Status and Perspective of Vulnerability Assessment of Cyber-Physical Power Systems Based on Complex Network Theory

Zang,

Wang,

Wei

et al. 2023

Energies

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The increasing factors of uncertainty faced by the system are due to the deep coupling of the electric power cyber network and the physical network. Consequently, ensuring the efficient, secure, and stable operation of the cyber–physical power system (CPPS) has become a key concern. To achieve this, vulnerability assessment plays a crucial role, as it identifies and protects the vulnerable points of the system. The application of complex network theory to assess the vulnerability of CPPSs has garnered significant attention from scholars. This paper delves into the research connotation of vulnerability assessment for CPPSs, starting with the origin, definition, and classification of vulnerability. Subsequently, the assessment framework of vulnerability based on complex network theory is presented, and the status of current domestic and international research in this field is summarized. Furthermore, the interrelationship between system vulnerability and cascading failures is analyzed from the perspective of complex network theory. In conclusion, the ideas of CPPS coupling modeling in vulnerability assessment are summarized, the concept of situation awareness is introduced, and a prospective approach for dynamic vulnerability assessment is proposed. This approach is based on situation awareness combined with complex network theory. Security protection and optimal operation of CPPSs based on vulnerability assessment are also discussed, along with the assessment of vulnerability within integrated energy cyber–physical systems (IECPSs).

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Section: Ermentioning

confidence: 99%

Current Status and Perspective of Vulnerability Assessment of Cyber-Physical Power Systems Based on Complex Network Theory

Zang,

Wang,

Wei

et al. 2023

Energies

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“…Reliability assessment allows systematic analysis of system failure modes, potential risks and system availability and reliability in the face of various scenarios. Our previous research proposed a reliability assessment method for cyber-physical distribution systems considering cyber-interference and defined reliability indices [9]. This Reference fully considered the influence of cyberphysical interactions on system reliability and established reliability assessment indices for cyber-physical distribution systems, but it was only applicable to distribution systems and could not assess the reliability of multi-energy systems.…”

Section: Introductionmentioning

confidence: 99%

Reliability Optimization Method for Gas–Electric Integrated Energy Systems Considering Cyber–Physical Interactions

et al. 2023

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With the development in the field of energy and the growing demand for sustainable energy, gas–electric integrated energy systems are attracting attention as an emerging energy supply method. At the same time, with the deep application of information technology, the cyber–physical interactions of gas–electric integrated energy systems are increasingly enhanced. To this end, first, the reliability assessment indices of a gas–electric integrated energy system, which comprehensively considers the interactions between cyber–physical and different energy sources, are established in this paper to quantitatively assess the reliability level of the system under different fault and failure conditions. Second, to solve the reliability optimization problem, a comprehensive reliability enhancement optimization model is constructed in this paper, which targets the sum of the total penalties of the failure rate and average repair time modification. The impact of the cyber systems on the gas–electric integrated energy systems is transformed into a modification of the failure rate and the average repair time, and the model is solved by an adaptive Gaussian particle swarm optimization algorithm. Finally, the applicability and superiority of the adaptive Gaussian particle swarm optimization algorithm to the reliability optimization of the gas–electricity integrated energy system are verified by conducting simulation tests on the gas–electricity integrated energy system coupled with an 8-node distribution system and the 11-node natural gas system in Belgium. Furthermore, the effects of cyber systems and cyber-attacks on system reliability optimization are also analyzed to verify the effectiveness of the proposed method and the rationality of the newly defined reliability indices.

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Optimal Load Shedding for Smart Power Grid Resilience Enhancement Considering Cyber-Physical Constraints

Hosseinpour

Martins

2023

IFIP Advances in Information and Communication Technology

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Reliability Assessment of Cyber–Physical Distribution Systems Considering Cyber Disturbances

Cited by 7 publications

References 30 publications

Current Status and Perspective of Vulnerability Assessment of Cyber-Physical Power Systems Based on Complex Network Theory

Current Status and Perspective of Vulnerability Assessment of Cyber-Physical Power Systems Based on Complex Network Theory

Reliability Optimization Method for Gas–Electric Integrated Energy Systems Considering Cyber–Physical Interactions

Optimal Load Shedding for Smart Power Grid Resilience Enhancement Considering Cyber-Physical Constraints

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