Validation of Numerical Models of the Offshore Wind Turbine From the Alpha Ventus Wind Farm Against Full-Scale Measurements Within OC5 Phase III
- Fraunhofer Institute for Wind Energy Systems, Bremerhaven (Germany)
- National Renewable Energy Lab. (NREL), Golden, CO (United States)
- Univ. of Stuttgart (Germany)
- OWEC Tower AS, Oslo (Norway)
- Technical Univ. of Denmark, Roskilde (Denmark)
- Electricitéde France, Palaiseau (France)
- IFP Energies Nouvelles, Rueil-Malmaison Cedex (France)
- Principia, La Ciotat (France)
- Nippon Kaiji Kyokai (ClassNK), Tokyo (Japan)
- 4Subsea, Hvalstad (Norway)
- Norwegian Univ. of Science and Technology, Trondheim (Norway)
- Simis AS, Malm (Norway)
- Univ. of Ulsan (South Korea)
- Polytechnic Univ. of Catalonia, Barcelona (Spain)
- Siemens Industry Software, Barcelona (Spain)
- Envision Energy Limited, Shanghai (China)
- China General Certification Center, Beijing (China)
- DNV GL, Bristol (United Kingdom)
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.
- Research Organization:
- National Renewable Energy Laboratory (NREL), Golden, CO (United States)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Wind Energy Technologies Office
- Grant/Contract Number:
- AC36-08GO28308; AC02-06CH11357
- OSTI ID:
- 1660135
- Report Number(s):
- NREL/JA--5000-76342; MainId:6356; UUID:68bade85-0e63-ea11-9c31-ac162d87dfe5; MainAdminID:15175
- Journal Information:
- Journal of Offshore Mechanics and Arctic Engineering, Journal Name: Journal of Offshore Mechanics and Arctic Engineering Journal Issue: 1 Vol. 143; ISSN 0892-7219
- Publisher:
- ASMECopyright Statement
- Country of Publication:
- United States
- Language:
- English
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journal | September 2016 |
OC5 Project Phase II: Validation of Global Loads of the DeepCwind Floating Semisubmersible Wind Turbine
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journal | October 2017 |
Verification of a Numerical Model of the Offshore Wind Turbine From the Alpha Ventus Wind Farm Within OC5 Phase III
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conference | September 2018 |
Comparison of Measured and Simulated Structural Loads of an Offshore Wind Turbine at Alpha Ventus
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journal | September 2016 |
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