Validation of numerical models of the offshore wind turbine from the alpha ventus wind farm against full-scale measurements within OC5 phase III: preprint / Wojciech Popko, Amy Robertson, Jason Jonkman, Fabian Wendt, Philipp Thomas, Kolja Müller, Matthias Kretschmer, Torbjørn Ruud Hagen, Christos Galinos, Jean-Baptiste Le Dreff, Philippe Gilbert, Bertrand Auriac, Sho Oh, Jacob Qvist, Stian Høegh Sørum, Loup Suja-Thauvin, Hyunkyoung Shin, Climent Molins, Pau Trubat, Paul Bonnet, Roger Bergua, Kai Wang, Pengcheng Fu, Jifeng Cai, Zhisong Cai, Armando Alexandre, and Robert Harries.

Format:

Book

Government document

Author/Creator:

Popko, Wojciech, author.

Robertson, Amy N., author.

Jonkman, J. M. (Jason Mark), author.

Wendt, Fabian (Fabian F.), author.

Thomas, Philipp (Engineer), author.

Müller, Kolja, 1987- author.

Kretschmer, Matthias (Of the Universit̃t Stuttgart), author.

Hagen, Torbjørn Ruud, author.

Galinos, Christos, author.

Le Dreff, Jean-Baptiste, author.

Gilbert, Philippe, author.

Auriac, Bertrand, author.

Oh, Sho, author.

Qvist, Jacob, author.

Sørum, Stian Høegh, author.

Suja-Thauvin, Loup, author.

Shin, Hyunkyoung, author.

Molins, Climent, author.

Trubat, Pau, author.

Bonnet, Paul A., author.

Bergua, Roger, author.

Wang, Kai (Of Envision Energy Limited), author.

Fu, Pengcheng (Of the China General Certification Center), author.

Cai, Jifeng, author.

Cai, Zhisong, author.

Alexandre, Armando, author.

Harries, Robert, author.

Contributor:

National Renewable Energy Laboratory (U.S.), issuing body.

Series:

Conference paper (National Renewable Energy Laboratory (U.S.)) ; 5000-73191.

NREL/CP ; 5000-73191

Language:

English

Subjects (All):

American Society of Mechanical Engineers. Ocean, Offshore, and Arctic Engineering Division.

American Society of Mechanical Engineers.

Wind turbines--United States.

Wind turbines.

Offshore wind power plants--United States.

Offshore wind power plants.

United States.

Genre:

Conference papers and proceedings.

Physical Description:

1 online resource (14 pages) : color illustrations

Place of Publication:

Golden, CO : National Renewable Energy Laboratory, 2019.

Summary:

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 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) Rotornacelle assembly (RNA) rotation maneuver below the cut-in wind speed; (3) Power production below and above the rated wind speed; and (4) Shut-down. 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; (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 geometrical properties of the structural members. Also, a number of issues arose during the validation: (1) The need for a thorough quality check of sensor measurements; (2) The sensitivity of the turbine loads to the controller and airfoil properties, which were only approximated in the modeling approach; (3) The importance of estimating and applying an appropriate damping value for the structure; and (4) The importance of wind characteristics beyond turbulence on the loads. The simulation results and measurements were compared in terms of time series, discrete Fourier transforms (DFTs), power spectral densities (PSDs), probability density functions (PDFs) of strains and accelerometers. A good match was achieved between the measurements and models set up by OC5 Phase III participants.

Notes:

"May 2019."

"Presented at the ASME 2019 38th Annual Conference on Ocean, Offshore, and Arctic Engineering, Glasgow, Scotland, June 9-14, 2019

Includes bibliographical references (page 14).

Online resource; title from PDF title screen (NREL, viewed on July 30, 2019).

OCLC:

1110618871

Publisher Number:

0000-0001-7448-4632 orcid

0000-0003-2990-7362 orcid

0000-0003-0219-8703 orcid

1514827 OSTI ID

Access Restriction:

Publicly released