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: 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: 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: WO2017207934A1

The invention relates to a system 1 comprising a wind turbine 2 mounted on a floating platform 8 that comprises three floats 10 comprising: - a lower segment 21; - an intermediate segment 22 of smaller cross section than the lower segment - an upper segment 23 of cross section greater than the intermediate segment 22: - a first connection 26 connecting the intermediate segment to the lower segment, the cross section of this connection reducing in the upward direction; and - a second connection 27 connecting the intermediate segment to the upper segment 23, the cross section of this connection reducing in the downward direction, the second connection being arranged above the waterline N.

Resumen de: WO2017206976A1

The invention relates to a wind turbine (10) comprising a floating base (20) designed as a semi-submersible, a tower (30) arranged on the floating base (20), at least two arms (40) extending from the tower (30), a respective energy conversion unit (50) arranged at the free end of each arm (40), and a cable system (60) connecting the base (20) to the energy conversion units (50) and connecting the energy conversion units (50) to one another in order to introduce the thrust forces acting on the tower (30), the arms (40) and the energy conversion units (50) into the base (20), wherein the cable system (60) has a pre-tensioning, the value of which is greater than the loads to be expected during the operation of the wind turbine (10) and acting against the pre-tensioning.

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: 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: 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: 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.

Resumen de: AU2017277083A1

The invention relates to a horizontal axis wind turbine having a rotor of radial reticular trusses formed by latticed, welded and braced, hollow, square metal bars, with aerodynamic blades at the ends thereof, and a spring that regulates power and wind thrust. The unit comprises a tautened support disposed on a base platform rotated by means of a cylinder contained within another cylinder embedded in the foundation, such as a thermal accumulator and a fixed or floating foundation. The unit further comprises a sling transmission belt for transmitting the drive torque of the rotor, which is disposed between peripheral nodes of the rotor and pulleys for receptor devices on the base platform for direct use or producing hot steam by means of multi-disc friction converters, in a closed circuit with an accumulator and thermal energy distribution, with networks of pipes for pressurised steam or the transformation said thermal energy into mechanical energy by means of endothermic turbines, as required. All of the models are similar and the materials are conventional.

Resumen de: US2019024635A1

An offshore wind farm with a plurality of foundation elements which are arranged so as to form the corners of a plurality of parquetted hexagons and with a plurality of floating offshore wind turbines. Each floating offshore wind turbine within a hexagon is connected to the foundation elements which form the hexagon. The invention is characterized in that the floating offshore wind turbines are connected to the foundation elements by means of connection means designed as a chain and/or a cable or a combination of a chain and a cable. The connection means have a length which allows the offshore wind turbines to drift within a circular area with a radius of up to 10% of the hexagon circumradii about the respective hexagon center.

Resumen de: WO2017157399A1

A floating wind turbine comprising a hull (1), a wind turbine (2) mounted on top of the hull (1) and a counterweight (3) suspended below the hull (1) by means of counterweight suspension means (18) is described. Also a method for the installation is described. The counterweight (3) comprises one or more counterweight buoyancy tanks (17). When the internal volume of the buoyancy tanks (17) is filled with air, the total buoyancy of the counterweight (3) 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 (1) 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. When the buoyancy tanks (17) are partly or completely flooded with water, the counterweight (3) will sink to an installed position at a level determined by the counter- weight suspension means (18). In this position the counterweight acts as a keel, stabilizing the foundation. The counterweight suspension means (18) are separately or jointly capable of transfer- ring both forces and moments to the hull (1), thereby enabling the counterweight (3) to stabilize the hull (1) when the counterweight (3) is in its installed position.

Resumen de: WO2019010947A1

A floating barrel, a manufacturing method for the floating barrel, and a wind turbine generator using the floating barrel. The floating barrel comprises a cylindrical barrel body (11); the barrel wall of the barrel body (11) is of a concrete structure (12), graphene and basalt fibers are evenly scattered inside the concrete structure (12), and stainless steel reinforcing steel bars are also wrapped inside the concrete structure (12); the stainless steel reinforcing steel bars comprise a plurality of carrying steel bars (13) and a plurality of stirrups (14); the carrying steel bars (13) are distributed in the circumferential direction of the barrel body (11) at intervals, and the stirrups (14) are distributed annularly at intervals in a manner of being vertical to the axial direction of the barrel body (11). The floating barrel and the wind turbine generator have better corrosion resistance, durability and structural strength, and are suitable for the working environment with complex sea stress condition, high humidity and high salt mist.

Resumen de: WO2017153676A1

The invention relates to a floating wind turbine (10) comprising a floating platform (14) and a turbomachine (12) resting on the platform, the turbomachine comprising: -first and second transverse flow turbines (24) disposed symmetrically with respect to a first plane, each turbine comprising blades (32) comprising central parts (33) that are extended at the ends by arms, connected to shaft elements (52, 56) by pivoting connections (74, 76), each turbine also comprising upper and lower fairings (42, 44); and - a structure (26) for holding the turbines comprising a vertical median pylon (28) between the turbines and upstream of a second plane containing the axes (A, A') of rotation of the blades of the turbines.

Resumen de: WO2019009747A1

The invention relates to hydroelectric engineering, particularly to wave power units, and can be used for supplying power to populated areas and to businesses, and can also be used in shipbuilding as a power unit for floating devices. A wave power unit comprises a rotor with a vertical turning shaft, said rotor being equipped with vertical blades and horizontal blades, the plane of symmetry of said blades being the plane of the undisturbed surface of the water, wherein the rotor shaft is connected via its upper end to a turning shaft of a wind power unit. It is also possible to connect the lower ends of vertical blades of the rotor of the wind power unit to the upper ends of the vertical blades of the rotor of the wave power unit. The invention allows for simultaneously converting the kinetic energy of waves and of the wind into the kinetic energy of a rotating shaft.

Resumen de: WO2018234986A1

A floating offshore horizontal axis wind turbine structure (1) comprising an anchored part (3) to a sea bed, and a rotatable part (4), the structure being supported by at least three means of floatation (6, 9) including a pivot buoy, wherein the pivot buoy (6) comprises a lower body (7) anchored to the seabed (13) and an upper body (8) fixed to the rotatable part (4); an electrical connection between the lower body (7) and the upper body (8) of the pivot buoy (6); and a yaw system connecting the upper body (8) with the lower body (7) wherein the yaw system comprises means of rotation (17) including an inner ring (19) and an outer ring (18) configured to rotate with respect to each other around a vertical yaw axis (2) and wherein the yaw system further comprising an inner centering means (20) and an outer centering means (21).

Resumen de: WO2018228809A1

The invention describes an offshore wind turbine installation arrangement (1, 2, 3, 4), comprising a lifting assembly (1) realized to hoist a suspended load (L) between a floating installation vessel (3) and a wind turbine assembly (5), which lifting assembly (1) comprises a crane (10) supported by the floating installation vessel (3); a sensor arrangement (2) realized to sense at least a motion (RX, RY, RZ; V) of the floating installation vessel (3); and a controller (4) realized to control elements (12A, 13A, 151A, 152A) of the lifting assembly (1) on the basis of the sensed installation vessel motion (RX, RY, RZ; V) to adjust the position of the suspended load (L) relative to the wind turbine assembly (5). The invention further describes a method of hoisting a load (L) between a floating installation vessel (3) and an offshore wind turbine assembly (5).