Publication detail

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

VRTAL, M. FUJDIAK, R. BENEDIKT, J. PRAKS, P. BRIŠ, R. PTÁČEK, M. TOMAN, P.

Original Title

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

Type

journal article in Web of Science

Language

English

Original Abstract

This paper presents a time-dependent reliability analysis created for a critical energy infrastructure use case, which consists of interconnected urban power grid and communication network. By utilising 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, has been established. This model assumes reparable and non-reparable components and captures the topology of the interconnected infrastructure and reliability characteristics of both power grid and 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 were 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.

Keywords

smart grid; power grid; distribution network; communication network; interconnection; reliability parameters; incident parameters; unavailability quantification; acyclic graph

Authors

VRTAL, M.; FUJDIAK, R.; BENEDIKT, J.; PRAKS, P.; BRIŠ, R.; PTÁČEK, M.; TOMAN, P.

Released

10. 12. 2023

Publisher

MDPI

Location

Basel, Switzerland

ISBN

1999-4893

Periodical

Algorithms

Year of study

16

Number

12

State

Swiss Confederation

Pages from

1

Pages to

21

Pages count

21

URL

https://www.mdpi.com/1999-4893/16/12/561

Full text in the Digital Library

http://hdl.handle.net/11012/245186

BibTex

@article{BUT185698,
  author="Matěj {Vrtal} and Radek {Fujdiak} and Jan {Benedikt} and Pavel {Praks} and Radim {Briš} and Michal {Ptáček} and Petr {Toman}",
  title="Time-Dependent Unavailability Exploration of Interconnected Urban Power Grid and Communications Network",
  journal="Algorithms",
  year="2023",
  volume="16",
  number="12",
  pages="1--21",
  doi="10.3390/a16120561",
  issn="1999-4893",
  url="https://www.mdpi.com/1999-4893/16/12/561"
}