Vis enkel innførsel

dc.contributor.authorSjolte, Jonas
dc.contributor.authorSandvik, Christian Mclisky
dc.contributor.authorTedeschi, Elisabetta
dc.contributor.authorMolinas Cabrera, Maria Marta
dc.date.accessioned2015-09-30T07:46:15Z
dc.date.accessioned2015-11-19T10:07:18Z
dc.date.available2015-09-30T07:46:15Z
dc.date.available2015-11-19T10:07:18Z
dc.date.issued2013
dc.identifier.citationEnergies 2013, 6(8): 3706-3733nb_NO
dc.identifier.issn1996-1073
dc.identifier.urihttp://hdl.handle.net/11250/2364726
dc.description.abstractFred Olsen is currently testing their latest wave energy converter (WEC), Lifesaver, outside of Falmouth Bay in England, preparing it for commercial operation at the Wavehub test site. Previous studies, mostly focusing on hydrodynamics and peak to average power reduction, have shown that this device has potential for increased power extraction using reactive control. This article extends those analyses, adding a detailed model of the all-electric power take-off (PTO) system, consisting of a permanent magnet synchronous generator, inverter and DC-link. Time domain simulations are performed to evaluate the PTO capabilities of the modeled WEC. However, when tuned towards reactive control, the generator losses become large, giving a very low overall system efficiency. Optimal control with respect to electrical output power is found to occur with low added mass, and when compared to pure passive loading, a 1% increase in annual energy production is estimated. The main factor reducing the effect of reactive control is found to be the minimum load-force constraint of the device. These results suggest that the Lifesaver has limited potential for increased production by reactive control. This analysis is nevertheless valuable, as it demonstrates how a wave-to-wire model can be used for investigation of PTO potential, annual energy production estimations and evaluations of different control techniques for a given WEC device.nb_NO
dc.language.isoengnb_NO
dc.publisherMDPInb_NO
dc.titleExploring the Potential for Increased Production from the Wave Energy Converter Lifesaver by Reactive Controlnb_NO
dc.typeJournal articlenb_NO
dc.typePeer revieweden_GB
dc.date.updated2015-09-30T07:46:15Z
dc.source.pagenumber3706-3733nb_NO
dc.source.volume6nb_NO
dc.source.journalEnergiesnb_NO
dc.source.issue8nb_NO
dc.identifier.doi10.3390/en6083706
dc.identifier.cristin1047324
dc.relation.projectNorges forskningsråd: 212184nb_NO
dc.description.localcodeThis is an open access article distributed under the Creative Commons Attribution License (CC BY) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.nb_NO


Tilhørende fil(er)

Thumbnail

Denne innførselen finnes i følgende samling(er)

Vis enkel innførsel