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Journal Articles Journal of Offshore Mechanics and Arctic Engineering Year : 2021

Validation of Numerical Models of the Offshore Wind Turbine From the Alpha Ventus Wind Farm Against Full-Scale Measurements Within OC5 Phase III

Wojciech Popko

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Amy Robertson
  • Function : Author
  • PersonId : 1092735
Jason Jonkman
  • Function : Author
  • PersonId : 1092736
Fabian Wendt
  • Function : Author
  • PersonId : 1092737
Kolja Müller
  • Function : Author
  • PersonId : 1092738
Matthias Kretschmer
  • Function : Author
  • PersonId : 1092739
Jean-Baptiste Le Dreff
  • Function : Author
EDF
Sho Oh
  • Function : Author
Jacob Qvist
  • Function : Author
Loup Suja-Thauvin
  • Function : Author
Kai Wang
Armando Alexandre
  • Function : Author
Robert Harries
  • Function : Author

Abstract

The main objective of the Offshore Code Comparison Collaboration Continuation, with Correlation (OC5) project is validation of aero-hydro-servo-elastic simulation tools for offshore wind turbines (OWTs) through comparison of simulated results to the response data of physical systems. Phase III of the OC5 project validates OWT models against the measurements recorded on a Senvion 5M wind turbine supported by the OWEC Quattropod from the alpha ventus offshore wind farm. The following operating conditions of the wind turbine were chosen for the validation: (1) idling below the cut-in wind speed, (2) rotor-nacelle assembly (RNA) rotation maneuver below the cut-in wind speed, (3) power production below and above the rated wind speed, and (4) shutdown. A number of validation load cases were defined based on these operating conditions. The following measurements were used for validation: (1) strains and accelerations recorded on the support structure and (2) pitch, yaw, and azimuth angles, generator speed, and electrical power recorded from the RNA. Strains were not directly available from the majority of the OWT simulation tools; therefore, strains were calculated based on out-of-plane bending moments, axial forces, and cross-sectional properties of the structural members. The simulation results and measurements were compared in terms of time series, discrete Fourier transforms, power spectral densities, and probability density functions of strains and accelerometers. A good match was achieved between the measurements and models setup by OC5 Phase III participants.
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Dates and versions

hal-03161184 , version 1 (05-03-2021)

Licence

Attribution - CC BY 4.0

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Cite

Wojciech Popko, Amy Robertson, Jason Jonkman, Fabian Wendt, Philipp Thomas, et al.. Validation of Numerical Models of the Offshore Wind Turbine From the Alpha Ventus Wind Farm Against Full-Scale Measurements Within OC5 Phase III. Journal of Offshore Mechanics and Arctic Engineering, 2021, 143 (1), pp.012002. ⟨10.1115/1.4047378]⟩. ⟨hal-03161184⟩

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