Detection of wind evolution and lidar trajectory optimization for lidar-assisted wind turbine control

dc.contributor.authorSchlipf, Davidde
dc.contributor.authorHaizmann, Floriande
dc.contributor.authorCosack, Nicolaide
dc.contributor.authorSiebers, Tomde
dc.contributor.authorCheng, Po Wende
dc.date.accessioned2015-11-30de
dc.date.accessioned2016-03-31T11:46:22Z
dc.date.available2015-11-30de
dc.date.available2016-03-31T11:46:22Z
dc.date.issued2015de
dc.description.abstractIn this work a collective pitch feedforward controller for floating wind turbines is presented. The feedforward controller provides a pitch rate update to a conventional feedback controller based on a wind speed preview. The controller is designed similar to the one for onshore turbines, which has proven its capability to improve wind turbine control performance in field tests. In a first design step, perfect wind preview and a calm sea is assumed. Under these assumptions the feedforward controller is able to compensate almost perfectly the effect of changing wind speed to the rotor speed of a full nonlinear model over the entire full load region. In a second step, a nacelle-based lidar is simulated scanning the same wind field which is used also for the aero-hydro-servo-elastic simulation. With model-based wind field reconstruction methods, the rotor effective wind speed is estimated from the raw lidar data and is used in the feedforward controller after filtering out the uncorrelated frequencies. Simulation results show that even with a more realistic wind preview, the feedforward controller is able to significantly reduce rotor speed and power variations. Furthermore, structural loads on the tower, rotor shaft, and blades are decreased. A comparison to a theoretical investigation shows that the reduction in rotor speed regulation is close to the optimum.en
dc.identifier.other452684528de
dc.identifier.urihttp://nbn-resolving.de/urn:nbn:de:bsz:93-opus-102409de
dc.identifier.urihttp://elib.uni-stuttgart.de/handle/11682/8434
dc.identifier.urihttp://dx.doi.org/10.18419/opus-8417
dc.language.isoende
dc.rightsinfo:eu-repo/semantics/openAccessde
dc.subject.classificationLidar , Windenergie , Vorsteuerungde
dc.subject.ddc333.7de
dc.subject.otherwind evolution , Longitudinal Spectral Coherence , lidar-assisted controlen
dc.titleDetection of wind evolution and lidar trajectory optimization for lidar-assisted wind turbine controlen
dc.typearticlede
ubs.fakultaetFakultätsübergreifend / Sonstige Einrichtungde
ubs.fakultaetFakultät Luft- und Raumfahrttechnik und Geodäsiede
ubs.institutSonstige Einrichtungde
ubs.institutInstitut für Flugzeugbaude
ubs.opusid10240de
ubs.publikation.sourceMeteorologische Zeitschrift 24 (2015), S. 565-579. URL http://dx.doi.org./10.1127/metz/2015/0634de
ubs.publikation.typZeitschriftenartikelde

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