Abruptness of cascade failures in power grids

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dc.contributor.author Pahwa, Sakshi
dc.contributor.author Scoglio, Caterina M.
dc.contributor.author Scala, Antonio
dc.date.accessioned 2014-02-24T21:13:44Z
dc.date.available 2014-02-24T21:13:44Z
dc.date.issued 2014-02-24
dc.identifier.uri http://hdl.handle.net/2097/17182
dc.description.abstract Electric power-systems are one of the most important critical infrastructures. In recent years, they have been exposed to extreme stress due to the increasing demand, the introduction of distributed renewable energy sources, and the development of extensive interconnections. We investigate the phenomenon of abrupt breakdown of an electric power-system under two scenarios: load growth (mimicking the ever-increasing customer demand) and power fluctuations (mimicking the effects of renewable sources). Our results on real, realistic and synthetic networks indicate that increasing the system size causes breakdowns to become more abrupt; in fact, mapping the system to a solvable statistical-physics model indicates the occurrence of a first order transition in the large size limit. Such an enhancement for the systemic risk failures (black-outs) with increasing network size is an effect that should be considered in the current projects aiming to integrate national power-grids into “super-grids”. en_US
dc.language.iso en_US en_US
dc.relation.uri http://www.nature.com/srep/2014/140115/srep03694/full/srep03694.html en_US
dc.rights This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0/ en_US
dc.subject Cascade failures en_US
dc.subject Power grids en_US
dc.subject Load growth en_US
dc.subject Power fluctuations en_US
dc.title Abruptness of cascade failures in power grids en_US
dc.type Article (publisher version) en_US
dc.date.published 2014 en_US
dc.citation.doi doi:10.1038/srep03694 en_US
dc.citation.epage 9 en_US
dc.citation.issue 3694 en_US
dc.citation.jtitle Scientific Reports en_US
dc.citation.spage 1 en_US
dc.citation.volume 4 en_US
dc.contributor.authoreid sakship en_US
dc.contributor.authoreid caterina en_US

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