TY  - JOUR
ID  - eprints4025
EP  - 1222
VL  - 21
AV  - public
TI  - Airborne Wind Energy Based on Dual Airfoils
Y1  - 2013///
UR  - http://doi.org/10.1109/TCST.2013.2257781
JF  - IEEE Transactions on Control Systems Technology
IS  - 4
A1  - Zanon, Mario
A1  - Gros, Sebastien
A1  - Andersson, Joel
A1  - Diehl, Moritz
SN  - 1063-6536
PB  - IEEE
SP  - 1215
N2  - The airborne wind energy (AWE) paradigm proposes to generate energy by flying a tethered airfoil across the wind flow at a high velocity. Although AWE enables flight in higher altitude and 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. Although this technique may improve the efficiency of AWE systems, such improvement can only be achieved through properly balancing the system trajectories and parameters. This brief tackles that problem using optimal control. A generic procedure for modeling multiple-airfoil systems with equations of minimal complexity is proposed. A parametric study shows that at small and medium scales, dual-airfoil systems are significantly more efficient than single-airfoil systems, but they are less advantageous at very large scales.
ER  -