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Performance assessment of a wind energy conversion system using a hierarchical controller structure

2015-03-15Journal article Restricted access
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dc.contributor.authorViveiros, Carla
dc.contributor.authorMelício, Rui
dc.contributor.authorIgreja, José
dc.contributor.authorMendes, Victor
dc.date.accessioned2016-02-24T15:22:24Z
dc.date.available2016-02-24T15:22:24Z
dc.date.issued2015-03-15
dc.description.abstractThis paper deals with a hierarchical structure composed by an event-based supervisor in a higher level and two distinct proportional integral (PI) controllers in a lower level. The controllers are applied to a variable speed wind energy conversion system with doubly-fed induction generator, namely, the fuzzy PI control and the fractional-order PI control. The event-based supervisor analyses the operation state of the wind energy conversion system among four possible operational states: park, start-up, generating or brake and sends the operation state to the controllers in the lower level. In start-up state, the controllers only act on electric torque while pitch angle is equal to zero. In generating state, the controllers must act on the pitch angle of the blades in order to maintain the electric power around the nominal value, thus ensuring that the safety conditions required for integration in the electric grid are met. Comparisons between fuzzy PI and fractional-order PI pitch controllers applied to a wind turbine benchmark model are given and simulation results by Matlab/Simulink are shown. From the results regarding the closed loop point of view, fuzzy PI controller allows a smoother response at the expense of larger number of variations of the pitch angle, implying frequent switches between operational states. On the other hand fractional-order PI controller allows an oscillatory response with less control effort, reducing switches between operational states. (C) 2015 Elsevier Ltd. All rights reserved.pt_PT
dc.identifier.citationVIVEIROS, Carla Solange Pires; [et al.] - Performance assessment of a wind energy conversion system using a hierarchical controller structure. Energy Conversion and Management. ISSN. 0196-8904. Vol. 93 (2015), pp. 40-48pt_PT
dc.identifier.doi10.1016/j.enconman.2015.01.002pt_PT
dc.identifier.issn0196-8904
dc.identifier.issn1879-2227
dc.identifier.urihttp://hdl.handle.net/10400.21/5730
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherPergamon-Elsevier Science LTDpt_PT
dc.relation.publisherversionhttp://www.sciencedirect.com/science/article/pii/S0196890415000060pt_PT
dc.subjectWind turbinept_PT
dc.subjectFractional-orderpt_PT
dc.subjectFuzzy proportional-integralpt_PT
dc.subjectController performancept_PT
dc.subjectEvent-based supervisorpt_PT
dc.titlePerformance assessment of a wind energy conversion system using a hierarchical controller structurept_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage48pt_PT
oaire.citation.startPage40pt_PT
oaire.citation.volume93pt_PT
person.familyNameViveiros
person.familyNameIgreja
person.familyNameMendes
person.givenNameCarla
person.givenNameJosé
person.givenNameVictor
person.identifier.ciencia-idAB14-98BC-18C0
person.identifier.ciencia-id2A1F-EABF-BE5D
person.identifier.orcid0000-0001-5096-1633
person.identifier.orcid0000-0002-8196-2935
person.identifier.orcid0000-0002-4599-477X
person.identifier.ridAAH-7730-2020
person.identifier.ridD-2332-2012
person.identifier.scopus-author-id56125867800
person.identifier.scopus-author-id15925332300
person.identifier.scopus-author-id55138675600
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
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relation.isAuthorOfPublicationa86b9291-f23c-4f09-83d7-9ee691696705
relation.isAuthorOfPublication.latestForDiscoverya86b9291-f23c-4f09-83d7-9ee691696705

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