TY  - JOUR
EP  - 5819
N1  - Proceedings of the 19th World Congress
The International Federation of Automatic Control
Cape Town, South Africa. August 24-29, 2014
ID  - eprints4029
UR  - http://doi.org/10.3182/20140824-6-ZA-1003.00258
AV  - public
TI  - Airborne Wind Energy: Airfoil-Airmass Interaction
N2  - 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.
SN  - 14746670
VL  - 47
JF  - IFAC Proceedings Volumes
IS  - 3
Y1  - 2014///
SP  - 5814
A1  - Zanon, Mario
A1  - Gros, Sébastien
A1  - Meyers, Johan
A1  - Diehl, Moritz
PB  - Elsevier
ER  -