Stabiliser Fault Emergency Control using Reconfiguration to Preserve Power System Stability

Andreas Søndergaard Pedersen, Jan H. Richter, Mojtaba Tabatabaeipour, Hjörtur Jóhannsson, Mogens Blanke

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Abstract

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
Publication statusPublished - 2014
Event19th World Congress of the International Federation of Automatic Control (IFAC 2014) - Cape Town, South Africa
Duration: 24 Aug 201429 Aug 2014
http://www.ifac2014.org/

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

Projects

SOSPO: Secure Operation of Sustainable Power Systems

Østergaard, J., Jóhannsson, H., Nielsen, A. H., Garcia-Valle, R., Yang, G., Lind, M., Blanke, M., Weckesser, J. T. G., Wittrock, M. L., Møller, J. G., Perez, A., Pedersen, A. S. & Zhang, X.

01/01/201231/03/2016

Project: Research

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Cite this

Pedersen, A. S., Richter, J. H., Tabatabaeipour, M., Jóhannsson, H., & Blanke, M. (2014). Stabiliser Fault Emergency Control using Reconfiguration to Preserve Power System Stability. In Proceedings of the 19th IFAC World Congress International Federation of Automatic Control. I F A C Workshop Series, No. 1, Vol.. 19