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Wind Energy Science The interactive open-access journal of the European Academy of Wind Energy
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https://doi.org/10.5194/wes-2020-21
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/wes-2020-21
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

  11 Mar 2020

11 Mar 2020

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This preprint is currently under review for the journal WES.

Field test of an active flap system on a full scale wind turbine

Alejandro Gomez Gonzalez1, Peder B. Enevoldsen1, Athanasios Barlas2, and Helge A. Madsen2 Alejandro Gomez Gonzalez et al.
  • 1Siemens Gamesa Renewable Energy A/S, Brande, DK
  • 2Technical University of Denmark DTU, Dept. of Wind Energy, Roskilde, DK

Abstract. This article describes a series of validation tests of an active flap system (AFS) on a multi-MW wind turbine. A single blade of a 4 MW turbine with 130 m rotor diameter (SWT-4.0-130) is retrofitted in the outer 15–20 m with the AFS. The AFS is controlled remotely with a pneumatic pressure supply system located in the hub of the turbine. The measurements are performed between October 2017 and June 2019 using two different AFS configurations on the blade. A description of the system setup is given, as well as comparisons of measurements and aeroelastic simulations. The measurements quantify the static load control authority of the AFS in atmospheric conditions, providing a preliminary estimate of load impact potential for the concept. The article presents furthermore a new method for the characterization of the load impact of the system and its dynamic response based on a blade-to-blade load comparison.

Alejandro Gomez Gonzalez et al.

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Alejandro Gomez Gonzalez et al.

Alejandro Gomez Gonzalez et al.

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Latest update: 08 Aug 2020
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Short summary
This work describes a series of tests of active flaps on a large wind turbine. The measurements are performed between October 2017 and June 2019 using two different flap configurations on the blade of the turbine showing a potential to manipulate the loading of the turbine between 5% and 10 %. This project is performed with the aim of demonstrating a technology with the potential of reducing the levelized cost of energy for wind power.
This work describes a series of tests of active flaps on a large wind turbine. The measurements...
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