摘要:
A flying apparatus is provided that comprises a airfoil (1) with a streamlined profile for generating an aerodynamic lift force vector (L) acting on the flying apparatus when being exposed to an apparent air flow. The flying apparatus also comprises at least three drive units (4, 42; 5, 51; 6, 61) being adapted to generate a resulting thrust force vector acting on the flying apparatus, the thrust force vector being alignable essentially in parallel with the aerodynamic lift force vector (L). For controlling the aerodynamic pitch of the flying apparatus, the flying apparatus comprises at least one control surface (31, 11). Furthermore, the flying apparatus has an aerodynamic neutral point (NP) that lies, along the longitudinal centre axis (10) and in the direction from the leading edge (17) to the trailing edge (18) of the airfoil (1), behind the centre of gravity (CG) of the flying apparatus.
摘要:
A wind power system comprising a vertical tower defining a vertical travel path; a carriage mounted to the tower and configured to move along the travel path; and wind turbine mounted to the carriage and having rotatable blades to convert wind energy into electrical energy. The system may include one or more gear racks secured to the outside diameter of the tower upon which the carriage moves. The system may include a locking mechanism configured to lock the carriage in a working position at a top of the travel path, a maintenance position at a bottom of the travel path, and/or a storm position at a midpoint of the travel path. The turbine may be configured to hold the blades in a vertical alignment parallel to the tower, when the carriage is in the storm position.
摘要:
A flying apparatus is provided that comprises a airfoil (1) with a streamlined profile for generating an aerodynamic lift force vector (L) acting on the flying apparatus when being exposed to an apparent air flow. The flying apparatus also comprises at least three drive units (4, 42; 5, 51; 6, 61) being adapted to generate a resulting thrust force vector acting on the flying apparatus, the thrust force vector being alignable essentially in parallel with the aerodynamic lift force vector (L). For controlling the aerodynamic pitch of the flying apparatus, the flying apparatus comprises at least one control surface (31, 11). Furthermore, the flying apparatus has an aerodynamic neutral point (NP) that lies, along the longitudinal centre axis (10) and in the direction from the leading edge (17) to the trailing edge (18) of the airfoil (1), behind the centre of gravity (CG) of the flying apparatus.
摘要:
Eine Offshore-Höhenwindkraftanlage wird zur Energieerzeugung durch Höhenwinde verwendet. Dazu ist ein Fluggerät über ein Zugseil mit einer schwimmfähigen Basisstation verbunden. Die Basisstation ist wiederum über eine Verbindungsleitung mit einer Sammelleitung am Meeresboden verbunden. Die Basisstation weist ein Generatorsystem mit einem Generator mit einer Winde auf. Die Winde ist dazu eingerichtet ein Zugseil aufzurollen und durch ihre Drehung beim Abrollen des Zugsteils den Generator anzutreiben. Der Generator wiederum wandelt die Drehbewegung der Winde in eine andere Energieform um. Das mit dem Zugseil verbundene Fluggerät ist in einem ersten Betriebsmodus dazu eingerichtet geschlossene Flugmuster zu fliegen. Während des Steigflugs des Flugmusters wickelt das Fluggerät das Zugseil von der Winde des Generatorsystems ab. Während des Sinkflugs des Fluggeräts wird das abgerollte Seil von dem Generatorsystem wieder aufgerollt. Die gewonnene Energie ist die Differenz aus der beim Abrollen der Winde freigewordene Energie und beim Aufrollen der Winde geringeren benötigten Energiemenge. In einem zweiten Betriebsmodus ist das Fluggerät dazu eingerichtet vom Zugseil abgekoppelt eine von der Basisstation räumlich getrennte Wartungsstation zu Wartungszwecken anzufliegen.
摘要:
A rotor for use with an airborne wind turbine, wherein the rotor comprises a front flange, a can, a rear flange, and a rigid insert comprising a propeller mount, wherein the front flange, can, and rear flange comprise one of carbon fiber and spun aluminum, wherein a rear end of the front flange is attached to a front end of the can, and the rear flange is mounted to a rear end of the can, wherein the rigid insert is bonded to the front flange; and wherein the rigid insert comprises a tube that axially extends within the rotor to allow for the positioning of a driveshaft therethrough.
摘要:
A method may involve transmitting power between a tethered aerial vehicle equipped with wind turbines for generating power and a ground station configured to interconnect the generated power to an electrical distribution network. The power may be transmitted using high voltage, high frequency AC electrical signals, and transformers at the ground station and the aerial vehicle can scale the AC voltage for use at the respective locations. Converters at the ground station and the aerial vehicle can then convert the transformed voltage to DC. The AC voltage may be transmitted through the tether at a resonant frequency of the tether based in part on an internal capacitance between multiple conductive paths on the tether.