Applying Complex Network Theory to the Vulnerability Assessment of Interdependent Energy Infrastructures

Jesus Beyza, Eduardo Garcia-Paricio and Jose M. Yusta
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Jesus Beyza: Department of Electrical Engineering, University of Zaragoza, C/ Maria de Luna 3, 50018 Zaragoza, Spain
Eduardo Garcia-Paricio: Department of Electrical Engineering, University of Zaragoza, C/ Maria de Luna 3, 50018 Zaragoza, Spain
Jose M. Yusta: Department of Electrical Engineering, University of Zaragoza, C/ Maria de Luna 3, 50018 Zaragoza, Spain

Energies, 2019, vol. 12, issue 3, 1-16

Abstract: In this paper, we evaluate the use of statistical indexes from graph theory as a possible alternative to power-flow techniques for analyzing cascading failures in coupled electric power and natural gas transmission systems. Both methodologies are applied comparatively to coupled IEEE and natural gas test networks. The cascading failure events are simulated through two strategies of network decomposition: Deliberate attacks on highly connected nodes and random faults. The analysis is performed by simulating successive N- k contingencies in a coupled network, where the network structure changes with the elimination of each node. The suitability of graph-theoretic techniques for assessing the vulnerability of interdependent electric power and natural gas infrastructures is demonstrated.

Keywords: electrical grid protection; natural gas transmission networks; graph theory; cascading failures; interdependent critical infrastructure (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (6)

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