Resumen de: WO2019113177A1

System and methods for controlling the oscillation of floating ground stations in aerial wind turbine systems are disclosed. Thrusters on the ground station or on one or more aerial vehicles associated with the ground station apply a compensatory force to the oscillating ground station to reduce and/or substantially eliminate wave-induced oscillations. Submerged thrusters may also rotate the ground station to a preferred alignment direction with the waves. Additionally, control systems use environmental and/or positional sensor data to develop a predictive force profile that maps desired compensatory force magnitude versus time. The control systems use that predictive force profile to direct the thrusters to apply a varying compensatory force over time.

Resumen de: US2019178228A1

System and methods for controlling the oscillation of floating ground stations in aerial wind turbine systems are disclosed. Thrusters on the ground station or on one or more aerial vehicles associated with the ground station apply a compensatory force to the oscillating ground station to reduce and/or substantially eliminate wave-induced oscillations. Submerged thrusters may also rotate the ground station to a preferred alignment direction with the waves. Additionally, control systems use environmental and/or positional sensor data to develop a predictive force profile that maps desired compensatory force magnitude versus time. The control systems use that predictive force profile to direct the thrusters to apply a varying compensatory force over time.

Resumen de: WO2019106283A1

The invention concerns a floating support structure (10) for an offshore wind turbine, comprising a float (12) intended to be partially submerged and on which a wind turbine mast is intended to be assembled, and a counterweight linked to the float and intended to be submerged under the float, the float comprising a main structure (18), the shape of which is toroidal or polygonal with at least five sides, a central tubular structure (26) having a diameter suitable for receiving the wind turbine mast and comprising a section suitable for being ballasted in order to adjust the waterline of the float, a first series of horizontal struts (28) distributed around a vertical axis and linking the main structure to the central structure, and a second series of oblique struts (30) distributed around a vertical axis (Y-Y) and linking the main structure to the central structure, forming an angle of between 15° and 60° with the horizontal struts (28).

Resumen de: WO2019102434A1

A self-aligning to the incoming wind floating platform supporting multiple wind turbines(17, 18) forms a wind power generation unit. Under horizontal wind, the wind load resultant passes the center of geometry of the wind load receiving areas (hereafter C.Geo) of the floating platform, but not the turning axis (15), resulting a yaw moment about the turning axis (15) to turn the floating platform until the wind load resultant passes through the C.Geo and the turning axis (15) simultaneously. A wind park or wind farm comprises at least one floating platforms capable of self-aligning to the incoming wind for electric power generation. The floating platform helps to reduce the mileage of the submarine power cable (44), hence reducing the electric resistance and subsequently heat loss, and reducing the cost of submarine power cables (44).

Resumen de: WO2019095487A1

An integrated device for an offshore floating wind turbine and fish cage farming. The device comprises, from top to bottom, a wind turbine (1), a turbine column (2), a living platform (3), a frustum-shaped steel floating turbine base (4), and a mooring device (9). The wind turbine (1) is mounted at an upper end of the turbine column (2), a lower end of the turbine column (2) is fixed on the floating turbine base (4). The living platform (3) surrounds the bottom of the turbine column (2). The mooring device (9) is connected to the floating turbine base (4) and moors the integrated device to the seabed. The integrated device also comprises side netting (71), bottom netting (72), and a lifting device. The side netting (71) is tensioned, and surrounds and is fixed to a side surface of the floating turbine base (4). The lifting device is provided in the floating turbine base (4) and is connected to the bottom netting (72) to raise or lower the bottom netting (72). A large fish farming cage is formed inside the floating turbine base (4), is not prone to deformation, and is highly automated. The invention combines power generation and fish farming, is stable and resistant to the action of waves, and is applicable to medium-deep water not deeper than 200 meters.

Resumen de: US2019141963A1

A floating offshore wind turbine integrated with a steel fish farming cage mainly includes a wind turbine, a wind turbine tower, a living quarter, a floating wind turbine foundation in a conic steel structure, a mooring system, a lateral net encircling the floating wind turbine foundation, a bottom net, and lifting systems. The upper end of the wind turbine tower hosts a wind turbine, and the lower end of the wind turbine tower is fixed on the floating wind turbine foundation. In the present invention, the inner space of the floating wind turbine foundation is used to form a huge farming cage, which functions for the objectives of “power exploitation on the top and fish farming at the bottom”. The foundation has excellent stability and seakeeping performance, and is applicable to deep waters.

Resumen de: WO2019094433A1

A rotor blade assembly for a wind turbine is disclosed with a first blade segment having a female structural member defining an internal cavity, and a second blade segment connected to the first blade segment at a chord-wise extending joint. The second blade segment has a male structural member that is received within the internal cavity of the female structural member of the first blade segment. At least one floating connector, for joining the first and second blade segments, is positioned in at least one of a generally chord-wise direction and a generally span-wise direction. The floating connector has a biasing element configured to restrain bi-directional movement of a floating pin within the floating connector.

Resumen de: US2019136828A1

A rotor blade assembly for a wind turbine is disclosed with a first blade segment having a female structural member defining an internal cavity, and a second blade segment connected to the first blade segment at a chord-wise extending joint. The second blade segment has a male structural member that is received within the internal cavity of the female structural member of the first blade segment. At least one floating connector, for joining the first and second blade segments, is positioned in at least one of a generally chord-wise direction and a generally span-wise direction. The floating connector has a biasing element configured to restrain bi-directional movement of a floating pin within the floating connector.

Resumen de: WO2019089834A1

This invention relates to devices that stabilize a floating wind turbines assembly. Previously, floating off shore wind turbines were subject to vibrations from water waves and even wind loads due to the lack of a fixed anchor. Embodiments of the present invention use a hollow moving mass, arranged around a beam shaft joined to a beam anchor, such that the hollow moving mass can be moved up or down the beam shaft. The hollow moving mass has a pump with a pump first end connected to the water with a first pump hose and a pump second end arranged within the hollow moving mass with a second pump hose. A plurality of sensors is arranged proximate the turbine shaft. A controller receives a movement data from the plurality of sensors and the adjusts the hollow moving mass to stabilize the floating wind turbine assembly.

Resumen de: US2019136830A1

A lift-driven wind turbine has a turbine rotor with blades mounted to the turbine shaft by two struts hinged to the shaft and each blade to form a four-bar linkage. The blades' airfoil cross section generates lift that rotates the blades around the axis in the presence of a prevailing wind. The airfoil chord forms a geometric angle of attack αG relative to the tangent of the blade path and the struts orient the blades with an outward tilt angle γ. The turbine is designed with values of αG and γ that cause the lift generated by each blade to have an upward component that supports the blade against the force of gravity and a mean radially inward component that substantially balances centrifugal forces on the blade. Wind turbines designed according to the principles disclosed herein facilitate the construction of free-floating utility scale wind turbines for deep water installations.

Resumen de: US2019127032A1

A floating wind turbine assembly, configured to self-stabilize in water without a fixed anchor. The floating wind turbine assembly has a wind turbine, joined to a turbine shaft. A beam anchor is joined to the turbine shaft. A hollow moving mass, arranged around the beam anchor, such that the hollow moving mass can be moved up or down the beam anchor. The hollow moving mass includes a pump, having a pump first end connected to the water with a first pump hose and a pump second end arranged within the hollow moving mass with a second pump hose.

Resumen de: US2019128241A1

Disclosed is a floating wind turbine including a floating platform and a turbomachine resting on the platform, the turbomachine including: —first and second transverse flow turbines disposed symmetrically with respect to a first plane, each turbine including blades including central parts that are extended at the ends by arms, connected to shaft elements by pivoting connections, each turbine also including upper and lower fairings; and—a structure for holding the turbines including a vertical median pylon between the turbines and upstream of a second plane containing the axes of rotation of the blades of the turbines.

Resumen de: WO2019075655A1

A single pile platform-based vertical axis wind turbine and vertical-horizontal bidirectional wave energy power generation integrated structure comprises a vertical axis wind turbine (1), a bidirectional wave energy power generation device (2), a bidirectional hydraulic power generation system located in the bidirectional wave energy power generation device, a tower structure (3), a single pile supporting platform structure (4), and an auxiliary power transmission system. The bidirectional wave power generation device can generate power by using bidirectional motion driving hydraulic transmission systems that are relatively vertical and horizontal to the tower structure, the wave energy utilization efficiency is effectively improved, and the unit wave energy power generation cost is reduced. By arranging the relatively-horizontal motion wave energy hydraulic power generation system, the horizontal action load of a wave energy floating body on the single pile foundation tower structure can be effectively reduced, and the building cost of the tower structure can be reduced.

Resumen de: WO2017220878A1

The invention relates to a floating device (2) for supporting an offshore wind turbine (1), comprising a central floating pillar (21) for fixedly receiving a tower (12) of the wind turbine (1), at least three peripheral floaters (22), and one leg (23) per floater, each leg (23) extending in a longitudinal direction that runs radially in relation to the central pillar (21); each leg (23) has a proximal end that is secured to the central pillar (21), and a distal end that is secured to the floater (22); the legs (23) include an outer tubular element, which extends in the longitudinal direction of the leg (23) and has a curved cross-section perpendicularly to the longitudinal direction, and an inner tubular element, which extends in the longitudinal direction of the leg (23) and has a polygonal cross-section perpendicularly to the longitudinal direction, the polygonal cross-section being inscribed in the curved cross-section. The invention also relates to a floating wind turbine unit comprising said device and a wind turbine.

Resumen de: WO2019074364A1

A system for placing a wind turbine assembly on a support surface of a support structure being supported on a seabed with a lifting crane provided on a floating vessel, said system can be changed from a first operation mode into a second operation mode to compensate a vertical reciprocal crane movement of the crane relative to the support structure.

Resumen de: WO2019073189A1

Apparatus (1) for harvesting wind energy on a large scale consists of an annular support structure (4), floating on a body of water (2), which can rotate about its hub (3). Multiple vertical aerofoil units (6, 76, 206), mounted at equal intervals around the support structure (4), can pivot independently about a vertical axis (17, 217). The aerofoil units (6, 76, 206) are each held at a suitable angle of attack relative to the ambient wind (7) by vertical canard aerofoils (13, 213) mounted to a boom (12, 212) extending forwards from a leading edge (10) of the main aerofoil (8, 208) of each aerofoil unit (6, 76, 206). A cam follower mechanism (21) in the pivot mounting of each aerofoil unit (6, 76, 206) directs the angle of attack of the canard aerofoils (13, 213), so that the angle of attack of the respective main aerofoil (8, 208) is optimised for the current position of the aerofoil unit (6, 76, 206) around the rotating support structure (4). The main aerofoils (8, 208) thus generate a torque causing the apparatus (1) to rotate. Electrical power is generated from the rotation of the apparatus (1), for example by generators at the hub (3).

Resumen de: EP3470667A1

Horizontal axis wind turbine with rotor of radial reticular trusses of square metal hollow bars, in lattice, welded and braced, with aerodynamic blades at its ends and a power regulator spring and wind thrusts. Cable-stayed pillar, placed on a base platform, which rotates by a cylinder inside another embedded in the holder, as a thermal accumulator and support, ground-steady or as a floating system. Transmission belt of rotor torque, sling type, between perimeter knots of the rotor and pulleys of receiving devices, on a base platform for direct use or production of water vapor heated by the multi-disc friction converters in a closed circuit with an accumulator and distribution of thermal energy, with networks of steam water pipes under pressure or their transformation into mechanical endothermic turbines, according to needs. All models are similar and the needed materials are conventional.

Resumen de: WO2019070140A1

The present invention relates to a floatable offshore wind turbine foundation having a suction anchoring system. The foundation makes it possible to support a wind turbine (13), the principal function of which is to produce electricity from wind energy. The foundation is composed of three main components: the float/anchor unit (1), the metallic support (2) and a transition piece (3). Each float/anchor unit (1) is formed from a plurality of buoyant anchoring columns (8) and a plurality of connection beams (9). The buoyant anchoring columns (8) confer buoyancy and stability on the foundation during transportation, and also allow the foundation to be fixed to the seabed during installation. The metallic support (2) connects the float/anchor unit (1) to the transition piece (3). The transition piece (3) connects the metallic support (2) to the wind turbine mast (12) and prevents larger waves from reaching the wind turbine mast (12).

Resumen de: WO2019047194A1

A floating wind energy-wave energy combined power generation system based on a support-column-free semi-submersible oscillating water column type wave energy integrated power generation platform, comprising an offshore wind power device, and an oscillating water column type wave energy generating device (5). The wave energy generating device converts the up-and-down reciprocating motion of a water column (6) into a reciprocating motion of air, and then completes the wave energy generation by means of an air turbine generator (10). The system uses a support-column-free structure, thus simplifying construction process, avoiding the structural fatigue problem caused by support columns, increasing the area of a waterplane and improving the overall stability of a floating foundation.

Resumen de: WO2019050289A1

The present invention relates to a floating-type power generation system comprising: a main body disposed above the surface of water in a state in which the main body is spaced apart from the surface of the water at a predetermined distance; a plurality of buoyant tanks capable of generating buoyancy and arranged to be spaced from each other at the lower part of the main body; a plurality of supporting columns, which extend along the longitudinal direction, of which the upper end portions are coupled to the main body, and of which the lower end portions are respectively coupled to the buoyant tanks; and a power generation unit coupled to the main body, and capable of producing electric power by using wind power or wave power.

Resumen de: US2019078556A1

Provided is a floating wind turbine including a hull, a wind turbine mounted on top of the hull and a counterweight suspended below the hull by a counterweight suspension is described. Also, a method for the installation is described. The counterweight includes one or more counterweight buoyancy tanks. When the internal volume of the buoyancy tanks is filled with air, the total buoyancy of the counterweight is close to or greater than its weight. Hereby it is capable of floating in a towing/maintenance position with moderate or no support in the vertical direction from the hull or other vessels. During towing, the hull substantially has the character of a barge, substantially relying on a large waterplane area and shallow draft to maintain stability.

Resumen de: US2019055928A1

Multiple horizontal axis type rotors are coaxially attached along the upper section of an elongate torque transmitting tower/driveshaft, The tower/driveshaft projects upward from a cantilevered bearing means, and is bent downwind, until the rotors become sufficiently aligned with the wind to rotate the entire tower/driveshaft, Power is drawn from the shaft at the base. Surface mount, subsurface mount, and marine installations, including a sailboat, are disclosed. Blade-to-blade lashing, and vertical axis rotor blades may also be included. Vertical and horizontal axis type rotor blades may be interconnected along the length of the tower/driveshaft to form a structural lattice, and the central shaft may even be eliminated. Aerodynamic lifting bodies or tails, buoyant lifting bodies, buoyant rotor blades, and methods of influencing the tilt of the rotors, can help elevate the structure. This wind turbine can have as few as one single moving part.

Resumen de: US2019055982A1

A wind power plant which is equipped with novel elastic self-aligning ball bearings. The self-aligning ball bearings can, in principle, be used for the cardanic suspension of a pendulum absorber, preferably in a tower of a wind power plant, as well as for rope attachment of floating off-shore plants at the bottom of a body of water. Correspondingly equipped vibration pendulum absorbers per se and to corresponding installations and pendulum absorbers, which have additional damping devices, are disclosed.