29 David Janke Beuth Hochschule für Technik Berlin University of applied sciences Luxemburger Str. 10 13353 Berlin Germany djanke@beuth-hochschule.de www.beuth-hochschule.de
Experimental Investigation and Modeling of Noise
of Airborne Wind Energy Converters
David Janke
Beuth Hochschule für Technik Berlin / University of applied sciences
As a next generation of Wind Turbines, Airborne Wind Energy Converters (AWECs) use flying devices to harvest the wind in high altitudes. A Kite, flying fast in crosswind direction, reels out a tether which is connected to a gener-ator winch on a ground station. By reeling out, the winch is turned and produces electrical energy.
Similar to conventional wind turbines, AWECs have to deal with environmental regulations in terms of noise emission,
which could become a limiting factor concerning flight operation and kite design.
This paper describes the development of a modeling tool for aerodynamically induced noise with further investigation of the noise emitted by the tethers. Free field test measure-ments were performed to validate the model. The results for a 30kW Kite-Tether System are presented.