Stabiliser Fault Emergency Control using Reconfiguration to Preserve Power System Stability

Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2014

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Stabiliser faults in multi-machine power systems are examined in this paper where fault-masking and system reconguration of the nonlinear system is obtained using a virtual actuator approach. Phasor Measurement Units, which can be integrated in wide-area transmission grids to improve the performance of power system stabilisers, are utilised when reconguring remaining stabilisers after one has been inoperable by a local failure. A stabilitypreserving reconguration is designed using absolute stability results for Lure type systems: The calculation of the virtual actuator that relies on a solution of a linear matrix inequality (LMI) is detailed in the paper. Simulation results of a benchmark transmission system show the ability of the fault-tolerant reconguration strategy to maintain wide-area stability of a power system despite failure in a stabiliser.
Original languageEnglish
Title of host publicationProceedings of the 19th IFAC World Congress
Number of pages7
PublisherInternational Federation of Automatic Control
Publication date2014
ISBN (print)978-3-902823-62-5
StatePublished - 2014
Event19th World Congress of the International Federation of Automatic Control (IFAC 2014) - Cape Town, South Africa

Conference

Conference19th World Congress of the International Federation of Automatic Control (IFAC 2014)
CountrySouth Africa
CityCape Town
Period24/08/201429/08/2014
OtherThe theme of the congress: “Promoting automatic control for the benefit of humankind”
Internet address
SeriesI F A C Workshop Series
Number1
Volume19
ISSN1474-6670

    Keywords

  • Power-system stabilisers, Fault-tolerant systems, System failure and recovery, Absolute stability
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