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Airborne Wind Energy: Airfoil-Airmass Interaction

Zanon, Mario and Gros, Sébastien and Meyers, Johan and Diehl, Moritz Airborne Wind Energy: Airfoil-Airmass Interaction. IFAC Proceedings Volumes, 47 (3). pp. 5814-5819. ISSN 14746670 (2014)

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The Airborne Wind Energy paradigm proposes to generate energy by flying a tethered airfoil across the wind flow at a high velocity. While Airborne Wind Energy enables flight in higher-altitude, stronger wind layers, the extra drag generated by the tether motion imposes a significant limit to the overall system efficiency. To address this issue, two airfoils with a shared tether can reduce overall system drag. A study proposed in Zanon et al. (2013) confirms this claim by showing that, in the considered scenario, the dual-airfoil system is more advantageous than the single-airfoil one. The results computed in Zanon et al. (2013) however, do not model the interaction between the airfoils and the airmass. In this paper, the impact of the airfoil-airmass interaction on the extracted power is studied. As this phenomenon is complex to model, a blade element-momentum approach is proposed and the problem is solved by means of optimal control techniques.

Item Type: Article
Identification Number: 10.3182/20140824-6-ZA-1003.00258
Additional Information: Proceedings of the 19th World Congress The International Federation of Automatic Control Cape Town, South Africa. August 24-29, 2014
Subjects: T Technology > T Technology (General)
Research Area: Computer Science and Applications
Depositing User: Mario Zanon
Date Deposited: 12 Mar 2018 10:59
Last Modified: 12 Mar 2018 10:59
URI: http://eprints.imtlucca.it/id/eprint/4029

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