Using H∞ to design robust POD controllers for wind power plants

Jasmin Mehmedalic, Thyge Knüppel, Jacob Østergaard

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

Large wind power plants (WPPs) can help to improve small signal stability by increasing the damping of electromechanical modes of oscillation. This can be done by adding a power system oscillation damping (POD) controller to the wind power plants, similar to power system stabilizer (PSS) controllers on conventional generation. Here two different design methods are evaluated for their suitability in producing a robust power system oscillation damping controller for wind power plants with full-load converter wind turbine generators (WTGs). Controllers are designed using classic PSS design and H∞ methods and the designed controllers evaluated on both performance and robustness. It is found that the choice of control signal has a large influence on the robustness of the controllers, and the best performance and robustness is found when the converter active power command is used as control signal. It is found that the classically designed controllers have fairly good robustness, but that H∞ controllers can provide better robustness.
Original languageEnglish
Title of host publicationProceedings of the 47th Universities Power Engineering Conference, UPEC'2012
Number of pages6
PublisherIEEE
Publication date2012
ISBN (Print)978-1-4673-2854-8
ISBN (Electronic)978-1-4673-2855-5
DOIs
Publication statusPublished - 2012
Event47th Universities' Power Engineering Conference - Brunel University, London, United Kingdom
Duration: 4 Sep 20127 Sep 2012

Conference

Conference47th Universities' Power Engineering Conference
LocationBrunel University
CountryUnited Kingdom
CityLondon
Period04/09/201207/09/2012

Keywords

  • H-infinity control
  • Power oscillation damping
  • Robustness
  • Wind power plant
  • Wind turbine

Cite this

Mehmedalic, J., Knüppel, T., & Østergaard, J. (2012). Using H∞ to design robust POD controllers for wind power plants. In Proceedings of the 47th Universities Power Engineering Conference, UPEC'2012 IEEE. https://doi.org/10.1109/UPEC.2012.6398414