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

被引：4
|
作者：
Papini, Guglielmo [1 ]
Piuma, Francisco Javier Dores Dores [2 ]
Faedo, Nicolas [1 ]
Ringwood, John, V [3 ]
Mattiazzo, Giuliana [1 ]
机构：
[1] Politecn Torino, Marine Offshore Renewable Energy Lab, Dept Mech & Aerosp Engn, I-10128 Turin, Italy
[2] Univ Nacl Quilmes, Dept Ciencia & Tecnol, B1876BXD, Buenos Aires, DF, Argentina
[3] Maynooth Univ, Ctr Ocean Energy Res, Maynooth W23 F2K8, Kildare, Ireland
来源：
JOURNAL OF MARINE SCIENCE AND ENGINEERING | 2022年 / 10卷 / 05期
基金：
欧盟地平线“2020”;
关键词：
model reduction; moment-matching; wave energy converters; optimal control; CONVERTERS;
D O I：
10.3390/jmse10050656
中图分类号：
U6 [水路运输]; P75 [海洋工程];
学科分类号：
0814 ; 081505 ; 0824 ; 082401 ;
摘要：
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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页数：16
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