Non-parametric multi-linear frequency-domain modelling of a wave energy device from experimental data

Autores
Farajvand, Mahdiyeh; García Violini, Diego Demián; Ringwood, John V.
Año de publicación
2025
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In experimental wave tank tests of wave energy converter devices, uncertainty sources arising from the inherent nature of the dynamical system or from external factors are inevitable. It is essential to employ proper signal processing techniques to mitigate these effects and establish realistic WEC models. Careful estimation of a range of representative linearised models, or determination of a nominal model and associated uncertainty region, overcomes the limitations of a single linear model by covering the complete dynamic operational space of the device. In pursuit of this goal, the current study analyses physical wave tank data using force-input experiments for a scale Wavestar prototype. Non-parametric, multi-linear hydrodynamic WEC models are characterised, serving as a starting point for model-based linear WEC robust controller synthesis. Specific focus is directed towards the quantification of uncertainty and external disturbance, specifically tailored to the wave tank under study. Effective data pre- and post-processing steps, adopted for chirp-type signals, are applied to mitigate disturbances while preserving the underlying physical system behaviour. Moreover, as an application example of WEC models obtained from this study, a single nominal model and uncertainty bound are determined that could provide the basis for (linear) robust WEC control.
Fil: Farajvand, Mahdiyeh. Maynooth University; Irlanda
Fil: García Violini, Diego Demián. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Quilmes. Departamento de Ciencia y Tecnología; Argentina
Fil: Ringwood, John V.. Maynooth University; Irlanda
Materia
WAVE ENERGY CONVERTER
EXPERIMENTAL WEC MODEL
UNCERTAINTY QUANTIFICATION
MULTI-LINEAR WEC MODELS
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/264725

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spelling Non-parametric multi-linear frequency-domain modelling of a wave energy device from experimental dataFarajvand, MahdiyehGarcía Violini, Diego DemiánRingwood, John V.WAVE ENERGY CONVERTEREXPERIMENTAL WEC MODELUNCERTAINTY QUANTIFICATIONMULTI-LINEAR WEC MODELShttps://purl.org/becyt/ford/2.2https://purl.org/becyt/ford/2In experimental wave tank tests of wave energy converter devices, uncertainty sources arising from the inherent nature of the dynamical system or from external factors are inevitable. It is essential to employ proper signal processing techniques to mitigate these effects and establish realistic WEC models. Careful estimation of a range of representative linearised models, or determination of a nominal model and associated uncertainty region, overcomes the limitations of a single linear model by covering the complete dynamic operational space of the device. In pursuit of this goal, the current study analyses physical wave tank data using force-input experiments for a scale Wavestar prototype. Non-parametric, multi-linear hydrodynamic WEC models are characterised, serving as a starting point for model-based linear WEC robust controller synthesis. Specific focus is directed towards the quantification of uncertainty and external disturbance, specifically tailored to the wave tank under study. Effective data pre- and post-processing steps, adopted for chirp-type signals, are applied to mitigate disturbances while preserving the underlying physical system behaviour. Moreover, as an application example of WEC models obtained from this study, a single nominal model and uncertainty bound are determined that could provide the basis for (linear) robust WEC control.Fil: Farajvand, Mahdiyeh. Maynooth University; IrlandaFil: García Violini, Diego Demián. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Quilmes. Departamento de Ciencia y Tecnología; ArgentinaFil: Ringwood, John V.. Maynooth University; IrlandaPergamon-Elsevier Science Ltd2025-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/264725Farajvand, Mahdiyeh; García Violini, Diego Demián; Ringwood, John V.; Non-parametric multi-linear frequency-domain modelling of a wave energy device from experimental data; Pergamon-Elsevier Science Ltd; Ocean Engineering; 326; 3-2025; 1-150029-8018CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.oceaneng.2025.120903info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:46:10Zoai:ri.conicet.gov.ar:11336/264725instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:46:11.232CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Non-parametric multi-linear frequency-domain modelling of a wave energy device from experimental data
title Non-parametric multi-linear frequency-domain modelling of a wave energy device from experimental data
spellingShingle Non-parametric multi-linear frequency-domain modelling of a wave energy device from experimental data
Farajvand, Mahdiyeh
WAVE ENERGY CONVERTER
EXPERIMENTAL WEC MODEL
UNCERTAINTY QUANTIFICATION
MULTI-LINEAR WEC MODELS
title_short Non-parametric multi-linear frequency-domain modelling of a wave energy device from experimental data
title_full Non-parametric multi-linear frequency-domain modelling of a wave energy device from experimental data
title_fullStr Non-parametric multi-linear frequency-domain modelling of a wave energy device from experimental data
title_full_unstemmed Non-parametric multi-linear frequency-domain modelling of a wave energy device from experimental data
title_sort Non-parametric multi-linear frequency-domain modelling of a wave energy device from experimental data
dc.creator.none.fl_str_mv Farajvand, Mahdiyeh
García Violini, Diego Demián
Ringwood, John V.
author Farajvand, Mahdiyeh
author_facet Farajvand, Mahdiyeh
García Violini, Diego Demián
Ringwood, John V.
author_role author
author2 García Violini, Diego Demián
Ringwood, John V.
author2_role author
author
dc.subject.none.fl_str_mv WAVE ENERGY CONVERTER
EXPERIMENTAL WEC MODEL
UNCERTAINTY QUANTIFICATION
MULTI-LINEAR WEC MODELS
topic WAVE ENERGY CONVERTER
EXPERIMENTAL WEC MODEL
UNCERTAINTY QUANTIFICATION
MULTI-LINEAR WEC MODELS
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.2
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv In experimental wave tank tests of wave energy converter devices, uncertainty sources arising from the inherent nature of the dynamical system or from external factors are inevitable. It is essential to employ proper signal processing techniques to mitigate these effects and establish realistic WEC models. Careful estimation of a range of representative linearised models, or determination of a nominal model and associated uncertainty region, overcomes the limitations of a single linear model by covering the complete dynamic operational space of the device. In pursuit of this goal, the current study analyses physical wave tank data using force-input experiments for a scale Wavestar prototype. Non-parametric, multi-linear hydrodynamic WEC models are characterised, serving as a starting point for model-based linear WEC robust controller synthesis. Specific focus is directed towards the quantification of uncertainty and external disturbance, specifically tailored to the wave tank under study. Effective data pre- and post-processing steps, adopted for chirp-type signals, are applied to mitigate disturbances while preserving the underlying physical system behaviour. Moreover, as an application example of WEC models obtained from this study, a single nominal model and uncertainty bound are determined that could provide the basis for (linear) robust WEC control.
Fil: Farajvand, Mahdiyeh. Maynooth University; Irlanda
Fil: García Violini, Diego Demián. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Quilmes. Departamento de Ciencia y Tecnología; Argentina
Fil: Ringwood, John V.. Maynooth University; Irlanda
description In experimental wave tank tests of wave energy converter devices, uncertainty sources arising from the inherent nature of the dynamical system or from external factors are inevitable. It is essential to employ proper signal processing techniques to mitigate these effects and establish realistic WEC models. Careful estimation of a range of representative linearised models, or determination of a nominal model and associated uncertainty region, overcomes the limitations of a single linear model by covering the complete dynamic operational space of the device. In pursuit of this goal, the current study analyses physical wave tank data using force-input experiments for a scale Wavestar prototype. Non-parametric, multi-linear hydrodynamic WEC models are characterised, serving as a starting point for model-based linear WEC robust controller synthesis. Specific focus is directed towards the quantification of uncertainty and external disturbance, specifically tailored to the wave tank under study. Effective data pre- and post-processing steps, adopted for chirp-type signals, are applied to mitigate disturbances while preserving the underlying physical system behaviour. Moreover, as an application example of WEC models obtained from this study, a single nominal model and uncertainty bound are determined that could provide the basis for (linear) robust WEC control.
publishDate 2025
dc.date.none.fl_str_mv 2025-03
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/264725
Farajvand, Mahdiyeh; García Violini, Diego Demián; Ringwood, John V.; Non-parametric multi-linear frequency-domain modelling of a wave energy device from experimental data; Pergamon-Elsevier Science Ltd; Ocean Engineering; 326; 3-2025; 1-15
0029-8018
CONICET Digital
CONICET
url http://hdl.handle.net/11336/264725
identifier_str_mv Farajvand, Mahdiyeh; García Violini, Diego Demián; Ringwood, John V.; Non-parametric multi-linear frequency-domain modelling of a wave energy device from experimental data; Pergamon-Elsevier Science Ltd; Ocean Engineering; 326; 3-2025; 1-15
0029-8018
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.oceaneng.2025.120903
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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