A kite system for the extraction of energy from the wind includes a kite connected to a base unit using a tether. The kite system comprises an anhedral wing 100 having wing tips (103 fig 3) and and may comprise a rigid wing, a flexible wing (eg parafoil) or a hybrid wing. A frame 300 is coupled to the wing by plural bridle lines 201. A pitch actuator 501 is connected to the frame and is connected to a tether attachment mechanism 400 for attaching the kite frame to a tether 402 at a tether attachment position. The tether is connected to a base unit where it is wound on a drum. The pitch actuator is configured to move the tether attachment mechanism relative to the frame in the fore and aft direction with respect to a forward flying direction of the kite system to adjust the pitch of the kite. The kite is intended to extract energy during a power stroke when the kite is generating lift and the tether is in tension causing rotation of the drum. In a retraction stage the drum is reversed to wind in the tether.
KITE SYSTEMS
DRACHENSYSTEME
SYSTÈMES DE CERF-VOLANT
08.01.2020
Patent
Elektronische Ressource
Englisch