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.

Nonlinear Model Reduction by Moment-Matching for a Point Absorber Wave Energy Conversion System / Papini, G.; Piuma, F. J. D.; Faedo, N.; Ringwood, J. V.; Mattiazzo, G.. - In: JOURNAL OF MARINE SCIENCE AND ENGINEERING. - ISSN 2077-1312. - 10:5(2022), p. 656. [10.3390/jmse10050656]

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

Papini G.;Faedo N.;Mattiazzo G.
2022

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.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2970197