Airborne wind energy: Airfoil-airmass interaction
Paper i proceeding, 2014

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.

Författare

M. Zanon

Sébastien Gros

Signaler och system, System- och reglerteknik, Reglerteknik

J. Meyers

M. Diehl

19th IFAC World Congress on International Federation of Automatic Control, IFAC 2014, Cape Town, South Africa, 24-29 August 2014

1474-6670 (ISSN)

Vol. 19 5814-5819

Ämneskategorier

Energisystem

Reglerteknik

ISBN

978-390282362-5