How to glue a robust smart-grid? A "finite-network" theory for interdependent network robustness

Gyan Ranjan, Zhi-Li Zhang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations

Abstract

Smart-grids are made up of two interdependent constituents: a power production and distribution network catering to a geographic area and a communication network that helps regulate and control the power-grid from which it derives its electricity. Thus, failures in one of the two networks can lead to failures in the other and in some cases cause a cascade or domino effect, bringing down the entire system completely. In this work, we present a theoretical framework to model and study the structural properties of such interdependent networks based on a topological interpretation [4] of the Moore-Penrose pseudo-inverse of the graph Laplacians (L +). Using this framework, we study how the way in which node pairs in two networks are coupled or "glued" together (thereby introducing interdependence) affects the overall robustness of the resulting interdependent networks. Our study leads to some surprising (and somewhat counter-intuitive) results.

Original languageEnglish (US)
Title of host publication7th Annual Cyber Security and Information Intelligence Research Workshop
Subtitle of host publicationEnergy Infrastructure Cyber Protection, CSIIRW11
DOIs
StatePublished - Dec 1 2011
Event7th Annual Cyber Security and Information Intelligence Research Workshop: Energy Infrastructure Cyber Protection, CSIIRW11 - Oak Ridge, TN, United States
Duration: Oct 12 2011Oct 14 2011

Publication series

NameACM International Conference Proceeding Series

Other

Other7th Annual Cyber Security and Information Intelligence Research Workshop: Energy Infrastructure Cyber Protection, CSIIRW11
Country/TerritoryUnited States
CityOak Ridge, TN
Period10/12/1110/14/11

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