Cyber-Physical Vulnerability Assessment in Smart Grids Based on Multilayer Complex Networks

Alonso Martínez, Mónica; Turanzas, Jaime; Amarís Duarte, Hortensia Elena; Ledo, Angel T.

Publication:
Cyber-Physical Vulnerability Assessment in Smart Grids Based on Multilayer Complex Networks

dc.affiliation.dpto	UC3M. Departamento de Ingeniería Eléctrica	es
dc.affiliation.grupoinv	UC3M. Grupo de Investigación: Redes y Sistemas de Energía Eléctrica (REDES)	es
dc.contributor.author	Alonso Martínez, Mónica
dc.contributor.author	Turanzas, Jaime
dc.contributor.author	Amarís Duarte, Hortensia Elena
dc.contributor.author	Ledo, Angel T.
dc.date.accessioned	2021-09-22T08:11:14Z
dc.date.available	2021-09-22T08:11:14Z
dc.date.issued	2021-09-01
dc.description	This article belongs to the Special Issue Cybersecurity and Privacy-Preserving in Modern Smart Grid	en
dc.description.abstract	In the last decade, the main attacks against smart grids have occurred in communication networks (ITs) causing the disconnection of physical equipment from power networks (OTs) and leading to electricity supply interruptions. To deal with the deficiencies presented in past studies, this paper addresses smart grids vulnerability assessment considering the smart grid as a cyber-physical heterogeneous interconnected system. The model of the cyber-physical system is composed of a physical power network model and the information and communication technology network model (ICT) both are interconnected and are interrelated by means of the communication and control equipment installed in the smart grid. This model highlights the hidden interdependencies between power and ICT networks and contains the interaction between both systems. To mimic the real nature of smart grids, the interconnected heterogeneous model is based on multilayer complex network theory and scale-free graph, where there is a one-to-many relationship between cyber and physical assets. Multilayer complex network theory centrality indexes are used to determine the interconnected heterogeneous system set of nodes criticality. The proposed methodology, which includes measurement, communication, and control equipment, has been tested on a standardized power network that is interconnected to the ICT network. Results demonstrate the model’s effectiveness in detecting vulnerabilities in the interdependent cyber-physical system compared to traditional vulnerability assessments applied to power networks (OT).	en
dc.description.sponsorship	This research was funded by Fundación Iberdrola España, within the 2020 research support scholarship program.	en
dc.format.extent	18
dc.identifier.bibliographicCitation	Alonso, M., Turanzas, J., Amaris, H. & Ledo, A. T. (2021). Cyber-Physical Vulnerability Assessment in Smart Grids Based on Multilayer Complex Networks. Sensors, 21(17), 5826	en
dc.identifier.doi	https://doi.org/10.3390/s21175826
dc.identifier.issn	1424-8220
dc.identifier.publicationfirstpage	5826
dc.identifier.publicationissue	17
dc.identifier.publicationtitle	Sensors	en
dc.identifier.publicationvolume	21
dc.identifier.uri	https://hdl.handle.net/10016/33299
dc.identifier.uxxi	AR/0000028394
dc.language.iso	eng
dc.publisher	MDPI
dc.rights	© 2021 by the authors.	en
dc.rights	Atribución 3.0 España
dc.rights.accessRights	open access
dc.rights.uri	http://creativecommons.org/licenses/by/3.0/es/
dc.subject.eciencia	Electrónica	es
dc.subject.other	Vulnerability	en
dc.subject.other	Complex networks	en
dc.subject.other	Smart grids	en
dc.subject.other	Cyber-physical systems	en
dc.subject.other	Robustness	en
dc.subject.other	Scale-free graph	en
dc.subject.other	Multilayer networks	en
dc.title	Cyber-Physical Vulnerability Assessment in Smart Grids Based on Multilayer Complex Networks	en
dc.type	research article	*
dc.type.hasVersion	VoR	*
dspace.entity.type	Publication