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Edwin Terink
Effect of design parameters on the flight dynamics of a Kiteplane
Terink, E.J., Breukels, J., Schmehl, R., Ockels, W.J.
Realizing the potential of the pumping kite power system as a concept for airborne wind energy generation requires a kite that is not only agile and aerodynamically efficient to maximize the power output, but also stable to minimize the control effort. In addition, a low lift mode – in kite terminology called depower – is necessary to implement a swift low power consuming downstroke. A kite that may fulfill these needs is the Kiteplane, an airplane-shaped kite constructed with inflatable beams and canopy surfaces. This lightweight airframe is connected to the ground station with a single-line tether and supported by lateral bridle lines. The lateral bridle couples the roll and yaw motion as a function of the pitch attitude with respect to the tether.
Simulating the 5-DOF model of the single-line single-kite system reveals that the amount and distribution of lateral aerodynamic surface area is decisive for flight dynamic stability. Furthermore, a power cycle of the geometrically optimized Kiteplane, with elevator and rudder control, yields an average power output of 1 kW/m2 and a capacity factor of 0.6 at a constant wind velocity of 10 m/s.
All content © Copyright 2013 by Airborne Wind Energy Conference 2011, Leuven, Belgium.
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