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A Small-Signal Stability Index for Power System Dynamic Impact Assessment using Time-domain Simulations
KTH, School of Electrical Engineering (EES), Electric Power Systems.
KTH, School of Electrical Engineering (EES), Electric Power Systems.ORCID iD: 0000-0002-4125-1055
2014 (English)In: 2014 IEEE PES General Meeting - Conference & Exposition, IEEE Computer Society, 2014, Vol. 2014-October, 6938842Conference paper, Published paper (Refereed)
Abstract [en]

In this paper, a three layer small-signal stability index to assess power system dynamic simulations is presented. The index is calculated from an estimate of the eigenvalues of the system, which are determined using time-series from dynamic simulations. The methodology assumes that no other information about the system (model) is available. In the first layer, which is the main future of the index, a scalar (positive or negative) indicates if any of the modes have a damping ratio less than a pre-defined value. In the second layer, a vector is used to specify which pre-defined damping ratios were violated and finally, in the third layer a matrix is used to retrieve precise information about which mode has violated the pre-defined damping requirements of the system. The proposed index is first illustrated using synthetic data and then the index is validated using simulation data from the KTH-Nordic32 system.

Place, publisher, year, edition, pages
IEEE Computer Society, 2014. Vol. 2014-October, 6938842
Series
IEEE Power and Energy Society General Meeting PESGM, ISSN 1944-9925
Keyword [en]
ringdown, severity index, small-signal stability, time-domain simulations
National Category
Energy Systems
Identifiers
URN: urn:nbn:se:kth:diva-164508DOI: 10.1109/PESGM.2014.6938842ISI: 000349551500040Scopus ID: 2-s2.0-84930999689ISBN: 978-1-4799-6415-4 (print)OAI: oai:DiVA.org:kth-164508DiVA: diva2:806007
Conference
2014 IEEE Power and Energy Society General Meeting, National Harbor, United States, 27 July 2014 through 31 July 2014
Note

QC 20150417

Available from: 2015-04-17 Created: 2015-04-17 Last updated: 2017-01-16Bibliographically approved

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Vanfretti, Luigi

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
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  • asciidoc
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