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Autor(en): Lemmer, Frank
Schlipf, David
Cheng, Po Wen
Titel: Control design methods for floating wind turbines for optimal disturbance rejection
Erscheinungsdatum: 2016
Dokumentart: Zeitschriftenartikel
Erschienen in: Journal of physics, conference series 753 (2016), no. 092006
URI: http://elib.uni-stuttgart.de/handle/11682/8923
http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-ds-89234
http://dx.doi.org/10.18419/opus-8906
ISSN: 1742-6588
Bemerkungen: Revised version #1 from Journal of Physics
Zusammenfassung: An analysis of the floating wind turbine as a multi-input-multi-output system investigating the effect of the control inputs on the system outputs is shown. These effects are compared to the ones of the disturbances from wind and waves in order to give insights for the selection of the control layout. The frequencies with the largest impact on the outputs due to the limited effect of the controlled variables are identified. Finally, an optimal controller is designed as a benchmark and compared to a conventional~PI-controller using only the rotor speed as input. Here, the previously found system properties, especially the difficulties to damp responses to wave excitation, are confirmed and verified through a spectral analysis with realistic environmental conditions. This comparison also assesses the quality of the employed simplified linear simulation model compared to the nonlinear model and shows that such an efficient frequency-domain evaluation for control design is feasible.
Enthalten in den Sammlungen:06 Fakultät Luft- und Raumfahrttechnik und Geodäsie

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