doi:10.1109/ROPEC48299.2019.9057090engBeyza, J.Ruiz, H.F.Artal-Sevil, J.S.Yusta, J.M.Improved graph model for interdependent gas and electricity critical infrastructuresART-2019-122928Interdependence between gas and electricity transmission networks is a subject of concern due to the expanding use of gas for electricity generation in combined-cycle power plants around the world. This paper proposes a novel and much more accurate representation of natural gas and electrical networks based on graph theory, which includes all the assets of both systems and their couplings and offers a more realistic topological model of the two coupled networks. The representation is proposed as a scale-free graph and is mathematically validated in test networks, finding that the representations maintain the same characteristics of traditional graphs, but with more topological detail of the infrastructures.2019http://zaguan.unizar.es/record/10117710.1109/ROPEC48299.2019.9057090http://zaguan.unizar.es/record/101177oai:zaguan.unizar.es:101177info:eu-repo/grantAgreement/ES/DGA/T28-17R-Building Aragon from Europeinfo:eu-repo/grantAgreement/ES/MINECO/ENE2016-77172-Rinfo:eu-repo/grantAgreement/ES/MINECO/RTC-2015-3358-5IEEE International Autumn Meeting on Power, Electronics and Computing 19510508 (2019), [6 pp]All rights reservedhttp://www.europeana.eu/rights/rr-f/info:eu-repo/semantics/openAccess