Correlated Failures of Power Systems: Analysis of the Nordic Grid

Correlated Failures of Power Systems : Analysis of the Nordic Grid

QC 20120412
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.

Amin, SaurabhTRUST Center, University of California, Berkeley(Swepub:kth)u1xbagso (author)
Schwartz, Galina (author)
Johansson, Karl HenrikKTH,Reglerteknik,ACCESS Linnaeus Centre(Swepub:kth)u1h0d9k2 (author)
Sandberg, HenrikKTH,Reglerteknik,ACCESS Linnaeus Centre(Swepub:kth)u1i9irki (author)
Sastry, ShankarTRUST Center, University of California, Berkeley(Swepub:kth)u1wpka3o (author)
KTHReglerteknik (creator_code:org_t)

In:Preprints of Workshop on Foundations of Dependable and Secure Cyber-Physical Systems

By the author/editor: Andreasson, Mart ...; Amin, Saurabh; Schwartz, Galina; Johansson, Karl ...; Sandberg, Henrik; Sastry, Shankar

About the subject

ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Electrical Engin ...; and Control Engineer ...

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