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Wind Energy Science The interactive open-access journal of the European Academy of Wind Energy
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This analysis validates the DWM model based on loads and power production measured at an onshore wind farm. Special focus is given to the performance of a version of the DWM model that was previously recalibrated with a lidar system at the site. The results of the recalibrated wake model agree very well with the measurements. Furthermore, lidar measurements of the wind speed deficit and the wake meandering are incorporated in the DWM model definition in order to decrease the uncertainties.
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https://doi.org/10.5194/wes-2020-126
https://doi.org/10.5194/wes-2020-126

  08 Dec 2020

08 Dec 2020

Review status: this preprint is currently under review for the journal WES.

Validation of the dynamic wake meandering model with respect to loads and power production

Inga Reinwardt1, Levin Schilling1, Dirk Steudel2, Nikolay Dimitrov3, Peter Dalhoff1, and Michael Breuer4 Inga Reinwardt et al.
  • 1Dep. Mechanical Engineering & Production, HAW Hamburg, Berliner Tor 21, D-20099 Hamburg, Germany
  • 2Dep. Turbine Load Calculation, Nordex Energy GmbH, Langenhorner Chaussee 600, D-22419 Hamburg, Germany
  • 3Dep. of Wind Energy, DTU, Frederiksborgvej 399, 4000 Roskilde, Denmark
  • 4Dep. of Fluid Mechanics, Helmut-Schmidt University Hamburg, Holstenhofweg 85, D-22043 Hamburg, Germany

Abstract. The outlined analysis validates the dynamic wake meandering (DWM) model based on loads and power production measured at an onshore wind farm with small turbine distances. Special focus is given to the performance of a version of the DWM model that was previously recalibrated at the site. The recalibration is based on measurements from a turbine nacelle-mounted lidar. The different versions of the DWM model are compared to the commonly used Frandsen turbulence model. The results of the recalibrated wake model agree very well with the measurements, whereas the Frandsen model overestimates the loads drastically for short turbine distances. Furthermore, lidar measurements of the wind speed deficit as well as the wake meandering are incorporated in the DWM model definition in order to decrease the uncertainties.

Inga Reinwardt et al.

 
Status: final response (author comments only)
Status: final response (author comments only)
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

Inga Reinwardt et al.

Inga Reinwardt et al.

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Short summary
This analysis validates the DWM model based on loads and power production measured at an onshore wind farm. Special focus is given to the performance of a version of the DWM model that was previously recalibrated with a lidar system at the site. The results of the recalibrated wake model agree very well with the measurements. Furthermore, lidar measurements of the wind speed deficit and the wake meandering are incorporated in the DWM model definition in order to decrease the uncertainties.
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