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Approximating the loadability surface in the presence of SNB–SLL corner points
KTH Royal Institute of Technology. (Waves signals and systems)ORCID iD: 0000-0003-3111-4820
2013 (English)In: Electric power systems research, ISSN 0378-7796, E-ISSN 1873-2046, Vol. 96, 64-74 p.Article in journal (Refereed) Published
Abstract [en]

Power system voltage security assessment is generally applied by considering the power system loadability surface. For a large power system, the loadability surface is a complicated hyper-surface in parameter space, and local approximations are a necessity for any analysis. Unfortunately, inequality constraints due to for example generator overexitation limiters, and higher codimension bifurcations, make the loadability surface non-smooth. One situation that is particularly difficult to handle is when a saddle-node bifurcation surface intersects a switching loadability limit surface. In this article we intend to investigate how several local approximations can be combined to obtain an adequate approximation of the loadability surface near such intersections.

Place, publisher, year, edition, pages
2013. Vol. 96, 64-74 p.
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Physics, Electrotechnology
Identifiers
URN: urn:nbn:se:lnu:diva-61558DOI: 10.1016/j.epsr.2012.10.016OAI: oai:DiVA.org:lnu-61558DiVA: diva2:1083526
Available from: 2017-03-21 Created: 2017-03-21 Last updated: 2017-04-05Bibliographically approved

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Perninge, Magnus
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