Research Cluster "Airborne Wind Energy Systems"
The usage of wind energy is one of the oldest energy harvesting technologies of human kind and wind turbines are known for over 5000 years. The research group Airborne Wind Energy Systems TU Berlin works on bringing wind energy to the next level.
The oldest wind turbines with a supposed age of 3000 years has been found near Alexandria, Egypt and was designed to create mechanical energy for milling. Roughly 5000 years later, wind energy produces a more than 35% of the renewable energy within the electric sector in Germany in 2018. But the further expansion stagnates due to a limit of profitable and available sites for conventional 3-bladed wind turbines in Germany. It is time to bring wind energy to the next level.
The new technology of flying wind turbines, the so-called Airborne Wind Energy System, promises to reach stronger and more consistent winds in high altitudes of 300-1000 m. Without the need of heavy and costly concrete foundations, steel towers and composite material rotor blades, Airborne Wind Energy Systems thereby generate renewable energy at lower electrical production costs.
The flying Airborne Wind Energy Systems potentially open new sites for renewable energy production, save a high percentage of the capital costs and visually less disturbing than conventional 3-bladed wind turbines.
Among multiple other private companies and public research institutions, TU Berlin’s research group Airborne Wind Energy Systems works on software development and experimental investigations to push this promising technology of Airborne Wind Energy to a commercial level.
The research group has experience in
• Power analysis and AEP estimation of Airborne Wind Energy Systems
• Stability Analysis (Lifting Line Theory/Vortex Lattice Method/3D Panel Code)
• Flight Performance Analysis (In-house Lifting Line Panel Method Code)
• Wind tunnel experiments with wind speeds up to 70 m/s (6 component force balance, pressure distribution measurement static and rotating systems)
• Under water experiments in Europe’ 2nd largest 250m long towing tank for high Reynolds numbers investigations (force measurement, PIV)
Dr.-Ing. C. N. Nayeri
 Airborne Wind Energy, Ahrens, Diehl, Schmehl, Springer-Verlag 2013
 Airborne Wind Energy Systems - A review of technologies, ELSEVIER Vol 51. November 2015