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:	Publisher
Use Licence:	This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

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