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On the persistence of dominant inter-area oscillation paths in large-scale power networks
KTH, School of Electrical Engineering (EES), Electric Power Systems.ORCID iD: 0000-0002-4867-0797
KTH, School of Electrical Engineering (EES), Electric Power Systems.ORCID iD: 0000-0002-4125-1055
2012 (English)In: IFAC Proceedings Volumes (IFAC-PapersOnline) Volume 8, Issue PART 1, 2012, 2012, 150-155 p.Conference paper, Published paper (Refereed)
Abstract [en]

This article discusses the degree of persistence of dominant inter-area oscillation paths: the passageways containing the highest content of inter-area oscillations in large-scale power networks. To this aim, a number of contingency studies are carried out: faults being imposed on the lines connecting to the dominant inter-area path. The path persistence is then examined using the relationship between sensitivities of network variables (i.e. voltages and current, magnitude and angle), and mode shapes describing the contribution of the oscillations among the generators variables (e.g. speed and angle). This relationship is termed network modeshape. The larger in magnitude and the lesser the variation the network modeshape is, the more observable and the more robust the signals measured from the dominant path becomes. The outcome is a proposed signal combination to be used as inputs to the damping controller for mitigation of inter-area oscillations in large-scale power systems.

Place, publisher, year, edition, pages
2012. 150-155 p.
Series
IFAC Proceedings Volumes (IFAC-PapersOnline), ISSN 1474-6670 ; 8
Keyword [en]
Inter-area oscillations, power systems, large-scale power networks, sensitivity analysis
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-70448Scopus ID: 2-s2.0-84880911604ISBN: 978-390282324-3 (print)OAI: oai:DiVA.org:kth-70448DiVA: diva2:486305
Conference
8th Power Plant and Power System Control Symposium, PPPSC 2012; Toulouse; France; 2 September 2012 through 5 September 2012
Funder
Swedish Research Council, 76131StandUp, 76106
Note

QC 20131007

Available from: 2012-09-27 Created: 2012-01-30 Last updated: 2013-10-07Bibliographically approved

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