Robust LMI-Based Control of Wind Turbines with Parametric Uncertainties

Christoffer Sloth, Thomas Esbensen, Michael Odgaard Kuch Niss, Jakob Stoustrup, Peter Fogh Odgaard

Research output: Contribution to journalConference article in JournalResearchpeer-review

36 Citations (Scopus)

Abstract

This paper considers the design of robust LMI-based controllers for a wind turbine along its entire nominal operating trajectory. The proposed robust controller design takes into account parametric uncertainties in the model using a structured uncertainty description, which makes the controllers less conservative than controllers designed using unstructured uncertainty descriptions. The LMI-based approach enables additional constraints to be included in the design, which is exploited to include requirements for minimizing fatigue loads and actuator usage. Two different methods are adopted, of which the first method assumes full state information and therefore requires a separate observer. In contrast, the second method relies only on output feedback, but introduces complications in the design procedure in order to achieve feasibility in the solution of the control law. Simulation results are obtained that show improved performance of the robust controllers in a comparison with a controller designed based on classical methods.
Original languageEnglish
JournalI E E E Conference on Control Applications. Proceedings
Volume2009
Pages (from-to)776-781
Number of pages6
ISSN1085-1992
DOIs
Publication statusPublished - 2009
Event2009 IEEE Multi-conference on Systems and Control - St. Petersburg, Russian Federation
Duration: 8 Jul 200910 Jul 2009

Conference

Conference2009 IEEE Multi-conference on Systems and Control
CountryRussian Federation
CitySt. Petersburg
Period08/07/200910/07/2009

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