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On uncontrolled system separation in power system restoration
KTH, School of Electrical Engineering (EES), Electric Power Systems.
KTH, School of Electrical Engineering (EES), Electric Power Systems.ORCID iD: 0000-0002-8189-2420
2011 (English)In: NAPS 2011 - 43rd North American Power Symposium, IEEE , 2011Conference paper (Refereed)
Abstract [en]

Since extended power outages causes severe stress on society and the restoration following a black out is a complex and time consuming task, efficient restoration strategies are needed. During the restoration, the power system undergoes continual changes and therefore it is subject to desired and undesired operations and failures which might be devastating. The main contribution of this paper is a new method to estimate the risk of an uncontrolled system separation in case of a loss of a transmission line or a transformer during a restoration process. The method in this paper assigns failure rates to the transformers and the transmission lines. Further, a graph theoretical method are used to find probability bounds for an uncontrolled system separation for a whole restoration sequence. In a numerical example are three restoration strategies applied to an IEEE 14 bus test system and evaluated. It is shown in the numerical example that the restoration strategy has an high impact on the probability for a system separation. © 2011 IEEE.

Place, publisher, year, edition, pages
IEEE , 2011.
Keyword [en]
Black out, Graph Theory, Restoration, Uncontrolled System Separation, Black-out, Efficient restoration, Failure rate, High impact, Numerical example, Power outage, Power system restoration, Probability bound, Restoration process, System separation, Test systems, Time-consuming tasks, Transmission line, Uncontrolled systems, Bandpass filters, Electric lines, Image reconstruction, Optical communication, Outages, Power transmission, Risk perception, Separation, Transmission line theory
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
URN: urn:nbn:se:kth:diva-52321DOI: 10.1109/NAPS.2011.6025092ScopusID: 2-s2.0-80053640068ISBN: 9781457704192 (ISBN)OAI: diva2:466285
NAPS 2011
Sponsors: Power and Energy Society (IEEE PES); Northeastern University College of Engineering © 2011 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. QC 20120117Available from: 2012-01-17 Created: 2011-12-15 Last updated: 2012-01-17Bibliographically approved

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