Assessment of fatigue load alleviation potential through blade trailing edge morphing

The possibility of alleviating wind turbine loads through blade trailing edge shape morphing is investigated in the present paper. Emphasis is put on analyzing the effect of the trailing edge flap geometry on load reduction levels. The choice of the shape deformation of the camber line as well as th...

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Bibliographic Details
Published in:Journal of physics. Conference series 2016-09, Vol.753 (4), p.42020
Main Authors: Tsiantas, Theofanis, Manolas, Dimitris I., Machairas, Theodore, Karakalas, Anargyros, Riziotis, Vasilis A., Saravanos, Dimitrios, Voutsinas, Spyros G.
Format: Article
Language:English
Subjects:
Camber
Controllers
Load alleviation
Morphing
Physics
Pitch (inclination)
Reduction
Trailing edge flaps
Wind speed
Wind turbines
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Summary:The possibility of alleviating wind turbine loads through blade trailing edge shape morphing is investigated in the present paper. Emphasis is put on analyzing the effect of the trailing edge flap geometry on load reduction levels. The choice of the shape deformation of the camber line as well as the chordwise and spanwise dimensions of the trailing edge flap are addressed. The analysis concerns the conceptual DTU 10 MW RWT. Aeroelastic control of loads is materialized through a standard individual flap controller. Furthermore, a comb ined individual pitch-flap controller is evaluated and found to present advantages compared to the flap only controller. Flapwise fatigue load reduction ranging from 10% to 20%, depending on wind velocity and configuration considered, is obtained. Better performance is achieved by the combined pitch-flap controller.
ISSN:1742-6588
1742-6596
1742-6596
DOI:10.1088/1742-6596/753/4/042020