Determination of Critical Parameters and Interdependencies of Infrastructure Elements in Smart Grids

Vrtal, Matej; Fujdiak, Radek; Benedikt, Jan; Topolánek, David; Ptacek, Michal; Toman, Petr; Misurec, Jiri; Běloch, Michal; Praks, Pavel

doi:10.1109/epe58302.2023.10149250

2023 23rd International Scientific Conference on Electric Power Engineering (EPE) 2023

DOI: 10.1109/epe58302.2023.10149250

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Determination of Critical Parameters and Interdependencies of Infrastructure Elements in Smart Grids

Matej Vrtal

Radek Fujdiak

Jan Benedikt

et al.

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2023

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“…The interconnected infrastructure is based on the real system located in the Czech Republic and covers two distinct infrastructures: the power grid and the communication network. For illustrative purposes, the paper introduces a novel version of an interconnected infrastructure test network proposed in [27]. Further, in the realm of time-dependent reliability analysis using AG, pertinent algorithms for discrete maintenance optimization of intricate multi-component systems have been presented in [26].…”

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Time-Dependent Unavailability Exploration of Interconnected Urban Power Grid and Communication Network

Vrtal,

Fujdiak,

Benedikt

et al. 2023

Algorithms

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This paper presents a time-dependent reliability analysis created for a critical energy infrastructure use case, which consists of an interconnected urban power grid and a communication network. By utilizing expert knowledge from the energy and communication sectors and integrating the renewal theory of multi-component systems, a representative reliability model of this interconnected energy infrastructure, based on real network located in the Czech Republic, is established. This model assumes reparable and non-reparable components and captures the topology of the interconnected infrastructure and reliability characteristics of both the power grid and the communication network. Moreover, a time-dependent reliability assessment of the interconnected system is provided. One of the significant outputs of this research is the identification of the critical components of the interconnected network and their interdependencies by the directed acyclic graph. Numerical results indicate that the original design has an unacceptable large unavailability. Thus, to improve the reliability of the interconnected system, a slightly modified design, in which only a limited number of components in the system are modified to keep the additional costs of the improved design limited, is proposed. Consequently, numerical results indicate reducing the unavailability of the improved interconnected system in comparison with the initial reliability design. The proposed unavailability exploration strategy is general and can bring a valuable reliability improvement in the power and communication sectors.

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mentioning

confidence: 99%

Time-Dependent Unavailability Exploration of Interconnected Urban Power Grid and Communication Network

Vrtal,

Fujdiak,

Benedikt

et al. 2023

Algorithms

Self Cite

View full text Add to dashboard Cite

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Determination of Critical Parameters and Interdependencies of Infrastructure Elements in Smart Grids

Cited by 1 publication

References 11 publications

Time-Dependent Unavailability Exploration of Interconnected Urban Power Grid and Communication Network

Time-Dependent Unavailability Exploration of Interconnected Urban Power Grid and Communication Network

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