Robust Model Predictive Control of a Nonlinear System with Known Scheduling Variable and Uncertain Gain

Mahmood Mirzaei, Niels Kjølstad Poulsen, Hans Henrik Niemann

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    Abstract

    Robust model predictive control (RMPC) of a class of nonlinear systems is considered in this paper. We will use Linear Parameter Varying (LPV) model of the nonlinear system. By taking the advantage of having future values of the scheduling variable, we will simplify state prediction. Because of the special structure of the problem, uncertainty is only in the B matrix (gain) of the state space model. Therefore by taking advantage of this structure, we formulate a tractable minimax optimization problem to solve robust model predictive control problem. Wind turbine is chosen as the case study and we choose wind speed as the scheduling variable. Wind speed is measurable ahead of the turbine, therefore the scheduling variable is known for the entire prediction horizon.
    Original languageEnglish
    Title of host publicationRobust Control Design
    Volume7
    PublisherInternational Federation of Automatic Control
    Publication date2012
    Pages616-621
    ISBN (Print)978-3-902823-03-8
    DOIs
    Publication statusPublished - 2012
    Event7th IFAC Symposium on Robust Control Design (ROCOND) - Aalborg Congress & Culture Centre, Aalborg, Denmark
    Duration: 20 Jun 201222 Jun 2012
    http://www.rocond12.org/

    Conference

    Conference7th IFAC Symposium on Robust Control Design (ROCOND)
    LocationAalborg Congress & Culture Centre
    Country/TerritoryDenmark
    CityAalborg
    Period20/06/201222/06/2012
    Internet address
    SeriesIFAC Proceedings Volumes (IFAC-PapersOnline)

    Keywords

    • Control
    • Nonlinear systems
    • Optical radar
    • Scheduling
    • State space methods
    • Wind effects
    • Wind turbines
    • Robust control
    • LIDAR measurements
    • Linear parameter varying
    • Robust model predictive control
    • Lidar measurements
    • Linear parameter varying models
    • Minimax optimization
    • Prediction horizon
    • Scheduling variable
    • Special structure
    • State prediction
    • State space model
    • Wind speed

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