Robust LMI-based control of wind turbines with parametric uncertainties

Christoffer Sloth*, Thomas Esbensen, Michael O.K. Niss, Jakob Stoustrup, Peter F. Odgaard

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Abstrakt

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.

OriginalsprogEngelsk
Titel2009 IEEE International Conference on Control Applications, CCA '09
Antal sider6
Publikationsdato2009
Sider776-781
Artikelnummer5281171
ISBN (Trykt)9781424446025
DOI
StatusUdgivet - 2009
Begivenhed2009 IEEE International Conference on Control Applications, CCA '09 - Saint Petersburg, Rusland
Varighed: 8. jul. 200910. jul. 2009

Konference

Konference2009 IEEE International Conference on Control Applications, CCA '09
Land/OmrådeRusland
BySaint Petersburg
Periode08/07/200910/07/2009
SponsorInst. Probl. Mech. Eng. Russian Acad. Sci., IEEE Russia Northwest Sec., Jt. Comput. Intell./Control Syst., IEEE Russia Northwest Sec., Rob. Autom. Chapter, IEEE, Control Systems Society, CSS, xerox

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