An analysis of the potential benefits of centralised predictive control for optimal electrical power generation from wave energy arrays

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dc.contributor.authorO'Sullivan, Adrian C. M.
dc.contributor.authorSheng, Wanan
dc.contributor.authorLightbody, Gordon
dc.contributor.funderScience Foundation Irelanden
dc.date.accessioned2018-05-21T11:28:59Z
dc.date.available2018-05-21T11:28:59Z
dc.date.issued2018
dc.date.updated2018-04-25T13:46:38Z
dc.description.abstractThis work focuses on an array of point absorbers, with linear permanent magnet generators (LPMG) connected to the grid via back to back voltage source converters, controlled using economic model predictive control (MPC) that produces optimal electrical power generation. The main contribution of this paper is the comparison of the performance provided by using either a centralised or decentralised MPC scheme. In this study, it is shown how the inclusion of viscosity and system constraints limits the benefits to be obtained by the use of a centralised control scheme. Indeed, it was shown that a decentralised MPC scheme was sufficient for the provision of close to optimum electrical power extraction from the array when there was a reasonable separation between WEC devices. It was shown that the introduction of power constraints, either locally at each device or globally for the entire array, improved the quality of the power exported to the grid. Importantly, it was shown that from the viewpoint of power quality, that global predictive control of the wave energy array offered significant benefits over local decentralised control in increasing the average to peak power ratio of power exported to the grid.en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationO’Sullivan, A. C. M., Sheng, W. and Lightbody, G. (2018) 'An analysis of the potential benefits of centralised predictive control for optimal electrical power generation from wave energy arrays', IEEE Transactions on Sustainable Energy [In Press] DOI: 10.1109/TSTE.2018.2812749en
dc.identifier.doi10.1109/TSTE.2018.2812749
dc.identifier.endpage10en
dc.identifier.issn1949-3029
dc.identifier.journaltitleIEEE Transactions on Sustainable Energyen
dc.identifier.startpage1en
dc.identifier.urihttps://hdl.handle.net/10468/6155
dc.language.isoenen
dc.publisherIEEEen
dc.relation.projectinfo:eu-repo/grantAgreement/SFI/SFI Research Centres/12/RC/2302/IE/Marine Renewable Energy Ireland (MaREI) - The SFI Centre for Marine Renewable Energy Research/en
dc.relation.urihttps://ieeexplore.ieee.org/document/8307106/
dc.rights© 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.en
dc.subjectDecentralized controlen
dc.subjectForceen
dc.subjectHydrodynamicsen
dc.subjectOptimizationen
dc.subjectPredictive controlen
dc.subjectViscosityen
dc.subjectVoltage controlen
dc.subjectAverage power maximisationen
dc.subjectCentralised controlen
dc.subjectDecentralised controlen
dc.subjectModel predictive controlen
dc.subjectPower qualityen
dc.subjectWave energy arraysen
dc.subjectWave to wireen
dc.titleAn analysis of the potential benefits of centralised predictive control for optimal electrical power generation from wave energy arraysen
dc.typeArticle (peer-reviewed)en
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