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    Nonlinear Model Reduction by Moment-Matching for a Point Absorber Wave Energy Conversion System


    Papini, Guglielmo and Dores Piuma, Francisco Javier Dores and Faedo, Nicolás and Ringwood, John and Mattiazzo, Giuliana (2022) Nonlinear Model Reduction by Moment-Matching for a Point Absorber Wave Energy Conversion System. Journal of Marine Science and Engineering, 10 (5). p. 656. ISSN 2077-1312

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    Abstract

    This paper presents a data-driven model reduction by moment-matching approach to construct control-oriented models for a point absorber device. The methodology chosen and developed generates models which are input-to-state linear, with any nonlinear behaviour confined to the output map. Such a map is the result of a data-driven approximation procedure, where the so-called moment of the point absorber system is estimated via a least-squares procedure. The resulting control-oriented model can inherently preserve steady-state properties of the target WEC system for a user-defined class of input signals of interest, with the computation only dependent upon a suitably defined set of input-output data.

    Item Type: Article
    Keywords: model reduction; moment-matching; wave energy converters; optimal control;
    Academic Unit: Faculty of Science and Engineering > Electronic Engineering
    Faculty of Science and Engineering > Research Institutes > Centre for Ocean Energy Research
    Item ID: 16107
    Identification Number: https://doi.org/10.3390/jmse10050656
    Depositing User: Professor John Ringwood
    Date Deposited: 16 Jun 2022 10:47
    Journal or Publication Title: Journal of Marine Science and Engineering
    Refereed: Yes
    URI:

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