Print Email Facebook Twitter A topological investigation of phase transitions of cascading failures in power grids Title A topological investigation of phase transitions of cascading failures in power grids Author Koç, Y. Warnier, M. van Mieghem, P. Kooij, R.E. Brazier, F.M.T. Publication year 2014 Abstract Cascading failures are one of the main reasons for blackouts in electric power transmission grids. The economic cost of such failures is in the order of tens of billion dollars annually. The loading level of power system is a key aspect to determine the amount of the damage caused by cascading failures. Existing studies show that the blackout size exhibits phase transitions as the loading level increases. This paper investigates the impact of the topology of a power grid on phase transitions in its robustness. Three spectral graph metrics are considered: spectral radius, effective graph resistance and algebraic connectivity. Experimental results from a model of cascading failures in power grids on the IEEE power systems demonstrate the applicability of these metrics to design/optimise a power grid topology for an enhanced phase transition behaviour of the system. © 2014 Elsevier B.V. All rights reserved. Subject Communication & InformationPNS - Performance of Networks & ServicesTS - Technical SciencesInfrastructuresInformaticsInformation SocietyCascading failuresComplex networksMetricsPhase transitionsPower gridRobustnessElectric fault currentsElectric power distributionElectric power transmissionTopologyAlgebraic connectivityEconomic costsElectric power transmission gridsSpectral radiiLoading To reference this document use: http://resolver.tudelft.nl/uuid:4da41456-f8b8-4a12-bd2c-5b0ecf446e66 DOI https://doi.org/10.1016/j.physa.2014.07.083 TNO identifier 516540 Source Physica A: Statistical Mechanics and its Applications, 415, 273-284 Document type article Files To receive the publication files, please send an e-mail request to TNO Library.