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Structured Power System Model Reduction of Non-Coherent Areas
KTH, School of Electrical Engineering (EES), Automatic Control. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.
KTH, School of Electrical Engineering (EES), Electric Power Systems. (SmarTS Lab)ORCID iD: 0000-0002-4125-1055
KTH, School of Electrical Engineering (EES), Electric Power Systems. (SmarTS Lab)ORCID iD: 0000-0002-4867-0797
KTH, School of Electrical Engineering (EES), Automatic Control. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.ORCID iD: 0000-0003-1835-2963
2012 (English)In: Power and Energy Society General Meeting, 2012 IEEE, IEEE , 2012, 6344913- p.Conference paper, Published paper (Refereed)
Abstract [en]

This paper demonstrates how structured model reduction can be used to reduce the order of power systems without the need to identify coherent groups of generators. To this end the Klein-Rogers-Kundur 2-area system is studied in detail. It is shown how different modes of the system are captured as the model order is varied, which is of interest in e.g. distributed controller design, where the objective is to damp these oscillations. The power system is divided into a study area and an external area and the proposed algorithm is used to reduce the external area to a low order linear system, while retaining the nonlinear description of the study area. It is shown that this approach permits greater deviations from the steady-state than if a reduced system that is entirely linear is used, while still yielding accurate simulation results.

Place, publisher, year, edition, pages
IEEE , 2012. 6344913- p.
Series
IEEE Power & Energy Society General Meeting : [proceedings], ISSN 1944-9925
Keyword [en]
Model reduction of power systems, internal systems, structured model reduction, dynamic equivalents
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
SRA - Energy
Identifiers
URN: urn:nbn:se:kth:diva-93615DOI: 10.1109/PESGM.2012.6344913ISI: 000312493702078Scopus ID: 2-s2.0-84870615238ISBN: 978-146732727-5 (print)OAI: oai:DiVA.org:kth-93615DiVA: diva2:517161
Conference
2012 IEEE Power and Energy Society General Meeting, PES 2012; San Diego, CA;22 July 2012 through 26 July 2012
Funder
StandUp, 76106ICT - The Next Generation
Note

QC 20120730

Available from: 2012-07-30 Created: 2012-04-21 Last updated: 2013-09-03Bibliographically approved

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Vanfretti, LuigiChompoobutrgool, YuwaSandberg, Henrik

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