A μ-Synthesis Approach to Robust Control of a Wind Turbine

Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2011

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The problem of robust control of a wind turbine is considered in this paper. A set of controllers are designed based on a 2 degrees of freedom linearized model of a wind turbine. An extended Kalman filter is used to estimate effective wind speed and the estimated wind speed is used to find the operating point of the wind turbine. Due to imprecise wind speed estimation, uncertainty in the obtained linear model is considered. Uncertainties in the drivetrain stiffness and damping parameters are also considered as these values are lumped parameters of a distributed system and therefore they include inherent uncertainties. We include these uncertainties as parametric uncertainties in the model and design robust controllers using the DK-iteration method. Based on estimated wind speed a pair of controllers are chosen and convex combination of their outputs is applied to the plant. The resulting set of controllers is applied on a full complexity simulation model and simulations are performed for stochastic wind speed according to relevant IEC standard.
Original languageEnglish
Title of host publication2011 50th IEEE Conference on Decision and Control and European Control Conference (CDC-ECC)
PublisherIEEE
Publication date2011
Pages645-650
ISBN (print)978-1-61284-800-6
ISBN (electronic)978-1-61284-799-3
DOIs
StatePublished

Conference

Conference50th IEEE Conference on Decision and Control and European Control Conference
Number50
CountryUnited States
CityOrlando, Florida
Period12/12/1115/12/11
SponsorSociety for Industrial and Applied Mathematics
Internet addresshttp://control.disp.uniroma2.it/cdcecc2011/

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