The present invention refers to an airborne system (100′) and in particular to an airborne power generation system (100). The airborne power generation system (100) comprises an airborne unit (10) configured (i) as an aerial vehicle (10′), in particular as a kite or a multicopter, and (ii) to harvest and convert wind power into electrical power, a ground unit (50) configured to send and/or receive electrical power to and from the airborne unit (10), respectively, and a coupling and tether unit (30) for mechanically and electrically coupling the airborne unit (10) to the ground unit (50) and configured to transmit electrical power between the airborne unit (10) and the ground unit (50). The airborne unit (10) comprises a plurality of motor/generator units (12) each of which having a wind harvesting/propelling rotor (14) mechanically coupled thereto and groups (16) of motor/generator units (12) and their assigned electrical transmission paths are electrically and/or galvanically uncoupled, insulated, isolated and/or separated with respect to each other at least in the airborne unit (10) and the coupling and tether unit (30).

Self-enabled means of sustainable energies generation and storage. Self-sufficiency in conversion of propulsion energies. Decarbonization of the global shipping industry. Empowering the blue ocean fleet of merchant liners with self-created propulsion power. Backed up by grid energy storage systems; and low carbon bunkers. To break free from the shackles of dirty energies; from being slaves of energy poverty. To achieve energy independence! Including: sustainable energies generation systems using wind-sails; pontoons; pliable; flexible semi-solid shrouds; made of plastics; polymers; etc. to capture fluids; channelling it through constricted tunnels to drive wind turbines; tidal turbines; etc. integrated with drones; robotic technologies for conversion into renewable electricity. An extremely scalable system, apparatus, equipment, techniques and ecosystem configured to produce renewable green energy with high productivity and efficiency.

The exemplary embodiments herein provide an airborne power generation assembly comprising an airborne power generation unit, a submersible platform, an electrified tether winch attached to the submersible platform, an electrified tether connecting between the electrified tether winch and the airborne power generation unit, and a power output exiting from the submersible platform. Embodiments include an underwater docking station with a docking station tether connecting the submersible platform to the underwater docking station. The submersible platform or the underwater docking station may be anchored to the sea bed. Other embodiments include winches for the sea bed anchor tethers and docking station tether.

A fluidic structure configured to be mounted onto the hub of a fluidic turbine comprising a hub that rotates about a center axis, aligned to a main shaft that contributes torque to the main shaft of the turbine via the principle of lift and/or drag. The fluidic structure is mounted onto the hub of a primary turbine that contributes torque to the main shaft through increasing at least one of lift and drag, and the fluidic structure includes two or more curved fluidic elements that extend from an upstream tip that aligns to the center axis of rotation, to a downstream end at a radial position away from the center axis, and rotates about the center axis to contribute torque to the primary turbine; and a sensor positioned at or proximate to an upstream tip of the fluidic structure for determining environmental and turbine conditions and transmits information to a supervisory control and data acquisition system of the primary turbine.

Unmanned aircraft, comprising a first wing (11) and a second wing (12), wherein at least one of the first and second wings (11, 12) are made with a multiple element configuration comprising a set of wing profiles (21, 22, 23, 24) which are arranged at least partially in a condition of mutual proximity, said set of wing profiles comprising at least a first wing profile (21) and a second wing profile (22) which are mutually positioned one after the other and which define a leading edge and a trailing edge, respectively, wherein said first wing (11) and said second wing (12) are spaced with respect to each other; said aircraft further comprising interconnection supports (13, 14) between said first wing (11) and said second wing (12), holding said first and second wing (11, 12) at a given distance, said unmanned aircraft further comprising at least one aerodynamic container (40) positioned between said first wing (11) and said second wing (12), said aerodynamic container (40) comprising an inner compartment and a casing enclosing said inner compartment and being adapted and configured to carry a load and/or a central motor (50c).

The exemplary embodiments herein provide a tether for use with an airborne device, where the tether contains an elongate member having a first end for attaching to a ground attachment point and an opposing second end for attaching to the airborne device where the elongate member has a cross-sectional area which varies across the member. In some embodiments, the tether contains one or more electrically conductive elements, an optional strength element, insulation separating any adjacent electrically conductive elements, and a jacket which surrounds and protects each of the tether components.

The invention relates to a method for controlling the operation of a number of airborne wind energy systems arranged in a wind energy park, where each airborne wind energy system comprising a wind engaging member being coupled to a ground station via a cable. The method comprises the determination of an operational parameter of each of the airborne wind energy systems, such as the flight trajectory, the cable tension, or the power production. A first airborne wind energy system is controlled according to a fault control mode if its operational parameter deviates more than a predetermined threshold parameter from the operation parameters of the other airborne wind energy system. The method further comprises operating one or more neighbouring airborne wind energy systems according to a safe control mode.

The invention relates to a method for controlling the operation of a number of airborne wind energy systems arranged in a wind energy park, where each airborne wind energy system comprising a wind engaging member being coupled to a ground station via a cable. The method comprises the determination of an operational parameter of each of the airborne wind energy systems, such as the flight trajectory, the cable tension, or the power production. A first airborne wind energy system is controlled according to a fault control mode if its operational parameter deviates more than a predetermined threshold parameter from the operation parameters of the other airborne wind energy system. The method further comprises operating one or more neighbouring airborne wind energy systems according to a safe control mode.

A fluidic structure configured to be mounted onto the hub of a fluidic turbine comprising a hub that rotates about a center axis, aligned to a main shaft that contributes torque to the main shaft of the turbine via the principle of lift and/or drag. The fluidic structure can be rigid or have some flexibility. The structure has two or more curved fluidic elements that extend from an upstream tip that aligns to the center axis of rotation, to a downstream end at some further radial position away from the center axis, and rotates about the center axis, wherein the two or more curved fluidic elements contain chord sections that are generally more wide at the upstream position and general more narrow at the downstream position.

In a system of the disclosure, power generation devices installed at separate places include a kite-shaped flying object staying in the air, a generator installed on a ground and a tether operatively connecting the two to each other. The tether, which is pulled when the kite-shaped flying object rises, rotates a rotor of a generator to generate power. A power supply controller controls power supply such that, when power suppliable from a power generation device meets a target power needed by a power receiving facility, power is supplied from the power generation device to the power receiving facility, and when the target power of the power receiving facility exceeds the power suppliable from the power generation device, power from another power generation device is supplied to the power receiving facility.