Pressure-based lift estimation and its application to feedforward load control employing trailing-edge flaps

dc.contributor.authorBartholomay, Sirko
dc.contributor.authorWester, Tom T. B.
dc.contributor.authorPerez-Becker, Sebastian
dc.contributor.authorKonze, Simon
dc.contributor.authorMenzel, Christian
dc.contributor.authorHölling, Michael
dc.contributor.authorSpickenheuer, Axel
dc.contributor.authorPeinke, Joachim
dc.contributor.authorNayeri, Christian N.
dc.contributor.authorPaschereit, Christian Oliver
dc.contributor.authorOberleithner, Kilian
dc.date.accessioned2021-12-17T13:33:05Z
dc.date.available2021-12-17T13:33:05Z
dc.date.issued2021-02-05
dc.description.abstractThis experimental load control study presents results of an active trailing-edge flap feedforward controller for wind turbine applications. The controller input is derived from pressure-based lift estimation methods that rely either on a quasi-steady method, based on a three-hole probe, or on an unsteady method that is based on three selected surface pressure ports. Furthermore, a standard feedback controller, based on force balance measurements, is compared to the feedforward control. A Clark-Y airfoil is employed for the wing that is equipped with a trailing-edge flap of x/c=30% chordwise extension. Inflow disturbances are created by a two-dimensional active grid. The Reynolds number is Re=290 000, and reduced frequencies of k=0.07 up to k=0.32 are analyzed. Within the first part of the paper, the lift estimation methods are compared. The surface-pressure-based method shows generally more accurate results, whereas the three-hole probe estimate overpredicts the lift amplitudes with increasing frequencies. Nonetheless, employing the latter as input to the feedforward controller is more promising as a beneficial phase lead is introduced by this method. A successful load alleviation was achieved up to reduced frequencies of k=0.192.en
dc.description.sponsorshipDFG, 218736457, Experimentelle Untersuchung von Strömungskontrollmethoden zur Lastkontrolle an Windkraftanlagen mittels einer Forschungswindkraftanlage im Windkanalen
dc.description.sponsorshipDFG, 414044773, Open Access Publizieren 2021 - 2022 / Technische Universität Berlinde
dc.identifier.eissn2366-7621
dc.identifier.urihttps://depositonce.tu-berlin.de/handle/11303/15981
dc.identifier.urihttp://dx.doi.org/10.14279/depositonce-14754
dc.language.isoenen
dc.relation.ispartof10.14279/depositonce-18865
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en
dc.subject.ddc620 Ingenieurwissenschaften und zugeordnete Tätigkeitende
dc.subject.otherwind energyen
dc.subject.otheraeroelastic simulationen
dc.subject.otherwind turbine controlen
dc.subject.otherload reduction controlen
dc.subject.otheractive trailing edge flapen
dc.subject.otherWindenergiede
dc.subject.otheraeroelastische Simulationde
dc.subject.otherLastreduktionsregelungde
dc.subject.otherWindturbinenregelungde
dc.subject.otheraktive Hinterkantenklappede
dc.titlePressure-based lift estimation and its application to feedforward load control employing trailing-edge flapsen
dc.typeArticleen
dc.type.versionpublishedVersionen
dcterms.bibliographicCitation.doi10.5194/wes-6-221-2021en
dcterms.bibliographicCitation.issue1en
dcterms.bibliographicCitation.journaltitleWind Energy Science Discussionsen
dcterms.bibliographicCitation.originalpublishernameCopernicusen
dcterms.bibliographicCitation.originalpublisherplaceGöttingenen
dcterms.bibliographicCitation.pageend245en
dcterms.bibliographicCitation.pagestart221en
dcterms.bibliographicCitation.volume6en
tub.accessrights.dnbfreeen
tub.affiliationFak. 5 Verkehrs- und Maschinensysteme::Inst. Strömungsmechanik und Technische Akustik (ISTA)::FG Experimentelle Strömungsmechanikde
tub.affiliation.facultyFak. 5 Verkehrs- und Maschinensystemede
tub.affiliation.groupFG Experimentelle Strömungsmechanikde
tub.affiliation.instituteInst. Strömungsmechanik und Technische Akustik (ISTA)de
tub.publisher.universityorinstitutionTechnische Universität Berlinen

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