Using graph models to analyze the vulnerability of electric power networks
2006 (English)In: Risk Analysis, ISSN 0272-4332, E-ISSN 1539-6924, Vol. 26, no 4, 955-969 p.Article in journal (Refereed) Published
In this article, we model electric power delivery networks as graphs, and conduct studies of two power transmission grids, i.e., the Nordic and the western states (U.S.) transmission grid. We calculate values of topological (structural) characteristics of the networks and compare their error and attack tolerance (structural vulnerability), i.e., their performance when vertices are removed, with two frequently used theoretical reference networks (the Erdos-Renyi random graph and the Barabasi-Albert scale-free network). Further, we perform a structural vulnerability analysis of a fictitious electric power network with simple structure. In this analysis, different strategies to decrease the vulnerability of the system are evaluated. Finally, we present a discussion on the practical applicability of graph modeling.
Place, publisher, year, edition, pages
2006. Vol. 26, no 4, 955-969 p.
electric power system; graph theory; intentional attack; network analysis; random failure; vulnerability
Engineering and Technology
IdentifiersURN: urn:nbn:se:kth:diva-5740DOI: 10.1111/j.1539-6924.2006.00791.xISI: 000239897400009ScopusID: 2-s2.0-33748439665OAI: oai:DiVA.org:kth-5740DiVA: diva2:10211
QC 201008312006-05-172006-05-172010-12-06Bibliographically approved