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Correlated Failures of Power Systems: Analysis of the Nordic Grid
KTH, School of Electrical Engineering (EES), Automatic Control. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.
TRUST Center, University of California, Berkeley.
KTH, School of Electrical Engineering (EES), Automatic Control. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.ORCID iD: 0000-0001-9940-5929
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2011 (English)In: Preprints of Workshop on Foundations of Dependable and Secure Cyber-Physical Systems, 2011Conference paper, Published paper (Refereed)
Abstract [en]

In this work we have analyzed the effectsof correlated failures of power lines on the total systemload shed. The total system load shed is determined bysolving the optimal load shedding problem, which is thesystem operator’s best response to a system failure.We haveintroduced a Monte Carlo based simulation framework forestimating the statistics of the system load shed as a functionof stochastic network parameters, and provide explicitguarantees on the sampling accuracy. This framework hasbeen applied to a 470 bus model of the Nordic power systemand a correlated Bernoulli failure model. It has been foundthat increased correlations between Bernoulli failures ofpower lines can dramatically increase the expected valueas well as the variance of the system load shed.

Place, publisher, year, edition, pages
2011.
National Category
Control Engineering
Identifiers
URN: urn:nbn:se:kth:diva-74469OAI: oai:DiVA.org:kth-74469DiVA: diva2:489680
Conference
Workshop on Foundations of Dependable and Secure Cyber-Physical Systems (FDSCPS). Chicago, Illinois. April 11, 2011
Funder
ICT - The Next Generation
Note
QC 20120412Available from: 2012-02-03 Created: 2012-02-03 Last updated: 2012-06-13Bibliographically approved

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Johansson, Karl HenrikSandberg, Henrik

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