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dc.contributor.author
Farajvand, Mahdiyeh
dc.contributor.author
Grazioso, Valerio
dc.contributor.author
García Violini, Diego Demián
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dc.contributor.author
Ringwood, John V.
dc.date.available
2023-06-30T16:42:19Z
dc.date.issued
2022-12
dc.identifier.citation
Farajvand, Mahdiyeh; Grazioso, Valerio; García Violini, Diego Demián; Ringwood, John V.; Uncertainty estimation in wave energy systems with applications in robust energy maximising control; Pergamon-Elsevier Science Ltd; Renewable Energy; 203; 12-2022; 194-204
dc.identifier.issn
0960-1481
dc.identifier.uri
http://hdl.handle.net/11336/201938
dc.description.abstract
Under control action, wave energy devices typically display nonlinear hydrodynamic behaviour, making the design of energy maximising control somewhat onerous. One solution to approach the optimal performance for nonlinear control problem under model mismatches is to employ a linear control strategy, which can be robust to linear model mismatches. However, accurate characterisation of the uncertainty in the linear model is vital, if the controller is to adequately capture the full extent of the uncertainty, while not being overly conservative due to overestimation of the uncertainty. This paper describes a procedure, employing CFD-based numerical tank experiments, to accurately produce a nominal linear empirical transfer function model, along with an accurate estimate of the uncertainty bounds in that linear model, due to hydrodynamic uncertainty. A robust control case study is provided, illustrating the nominal model estimation process, and its corresponding uncertainty set, including the complete procedure, required to generate the robust controller. Robust control results, on the fully nonlinear CFD model, are provided to demonstrate the efficacy of the modelling and control philosophy.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Pergamon-Elsevier Science Ltd
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dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
COMPUTATIONAL FLUID DYNAMICS (CFD)
dc.subject
EMPIRICAL TRANSFER FUNCTION ESTIMATE (ETFE)
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NUMERICAL WAVE TANK (NWT)
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ROBUST CONTROL
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UNCERTAINTY BOUND
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WAVE ENERGY CONVERTER
dc.subject.classification
Sistemas de Automatización y Control
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dc.subject.classification
Ingeniería Eléctrica, Ingeniería Electrónica e Ingeniería de la Información
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dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
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dc.title
Uncertainty estimation in wave energy systems with applications in robust energy maximising control
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2023-06-30T12:40:10Z
dc.journal.volume
203
dc.journal.pagination
194-204
dc.journal.pais
Estados Unidos
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dc.description.fil
Fil: Farajvand, Mahdiyeh. Maynooth University; Irlanda
dc.description.fil
Fil: Grazioso, Valerio. Maynooth University; Irlanda
dc.description.fil
Fil: García Violini, Diego Demián. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Quilmes. Departamento de Ciencia y Tecnología; Argentina
dc.description.fil
Fil: Ringwood, John V.. Maynooth University; Irlanda
dc.journal.title
Renewable Energy
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://linkinghub.elsevier.com/retrieve/pii/S0960148122018390
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.renene.2022.12.054
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