Resumen de: US2019367136A1

A floating device for supporting an offshore wind turbine, comprising a central floating pillar for fixedly receiving a tower of the wind turbine, at least three peripheral floaters, and one leg per floater, each leg extending in a longitudinal direction that runs radially in relation to the central pillar; each leg has a proximal end that is secured to the central pillar, and a distal end that is secured to the floater; the legs include an outer tubular element, which extends in the longitudinal direction of the leg 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 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 the device and a wind turbine.

Resumen de: WO2019224535A1

A wind turbine for deployment offshore. The wind turbine including: a tower-float assembly having a tower (3) for supporting a nacelle (13a) and a rotor (13b), and a float (5) arranged to maintain at least part of the tower above a surface of a body of water; a keel assembly (7) including at least one keel module (25) and at least one rod (9) connecting the keel module to the tower-float assembly, wherein the at least one rod is arranged to move relative to the tower-float assembly to deploy the keel module, and the keel module is movable relative to the tower-float assembly, in response to movement of the at least one rod, between a non-deployed position proximal the tower-float assembly and a deployed position which is distal from the tower-float assembly in a downwardly direction, thereby increasing an effective length of the wind turbine; and the at least one rod is arranged to transfer bending moments to the tower-float assembly.

Resumen de: WO2019201705A1

The present invention relates to a floating wind turbine (10) comprising a floating platform (14) which supports a turbomachine comprising two vertical-axis turbines (30). The turbines are borne by a vertical median pylon (20) that is mounted so as to be able to rotate with respect to the floating platform, and by connecting members (41, 43) that connect and maintain a distance between the rotation shafts of the turbines and the pylon. The wind turbine comprises: - a single generator (70) whose axis of rotation (G) is parallel to the axes of rotation (A, A') of the turbines and is distinct from the pivoting axis of the pylon and the axes of rotation (A, A') of the turbines, and - at least one flexible link (60) that connects and synchronises the rotation of the rotation shaft of the generator and the rotation shafts of the turbines by making said flexible link move linearly in a closed-circuit path such that the rotation shaft of the generator is driven by the movement of the two turbines (30). The field of the invention is in particular that of wind turbines in the marine environment.

Resumen de: WO2019201703A1

The invention relates to a floating turbine (10) comprising a floating platform (14) on which a turbomachine comprising two vertical-axis turbines (30) stands.The turbines are carried by a vertical median tower (20) which is mounted rotatably in relation to the floating platform, and by connecting members (41, 43) connecting the rotating shafts of the turbines to the tower and maintaining them at a distance therefrom. The wind turbine comprises: a device for detecting the direction of the wind; and an actuating device (50) for active yaw control of the tower acting on the pivoting shaft of the tower, the actuating device being arranged and designed such that, in the event of activation, it moves the tower so as to position a plane (P2) containing the axes of rotation (A, A') of the first and second turbines substantially perpendicularly to the direction of the wind. The field of the invention is particularly that of wind turbines in a marine environment.

Resumen de: PH12019500045A1

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: US2019316567A1

A wind-driven power generating system with a hybrid wind turbine mounted on a floating platform that heels relative to horizontal in the presence of a prevailing wind. The hybrid turbine has a turbine rotor with at least two rotor blades, each mounted to a turbine shaft by at least one strut, and the system is configured so that the shaft forms a predetermined non-zero operating heel angle relative to vertical in the presence of a prevailing wind at a predetermined velocity. The blades and struts are airfoils with predetermined aerodynamic characteristics that generate lift forces with components in the direction of rotation around the shaft of the blades and struts at the operating heel angle to drive an electrical generator carried by the platform. The system can be designed to generate maximum power at the predetermined heel angle or essentially constant power over a range of heel angles.

Resumen de: WO2018101833A1

A method of controlling a turbine of a floating wind turbine structure to reduce fatigue of its moorings comprises curtailing the turbine based on a pitching motion of the wind turbine structure and on a wind direction at the wind turbine structure relative to the orientation of moorings of the wind turbine structure. Optionally, the curtailment may be further based on the degree of displacement of the wind turbine structure from a reference location.

Resumen de: WO2019190387A1

The present invention relates to a floating vertical axis wind turbine, VAWT, with a central column which at its lower end is connected to a mooring system. The VAWT comprises at least one rigid peripheral power generating unit comprising a blade, a peripheral buoyancy element and a water turbine assembly. The peripheral buoyancy element extends from the lower end of the blade and connects the water turbine assembly to the blade, and wherein the peripheral buoyancy element at least partly supports the rigid peripheral power generating unit by buoyancy. A bearing assembly is rotatably attached to the central column and at least one first strut connects the rigid peripheral power generating unit with the bearing assembly.

Resumen de: EP3546337A1

In a floating structure 1 with a plurality of columns 2 as vertically extending columnar buoyancy bodies and a connecting body for connecting the columns 2 horizontally deployed, an upper structure (a wind turbine) 4 is connected to an upper portion of at least one (a main column 2a) of the columns 2 and the whole is supported on water. Construction is such that buoyancy on the main column 2a becomes larger than that on each of the other columns 2 (side columns 2b).

Resumen de: SE1850355A1

The present invention relates to a floating vertical axis wind turbine, VAWT, with a central column which at its lower end is connected to a mooring system. The VAWT comprises at least one rigid peripheral power generating unit comprising a blade, a peripheral buoyancy element and a water turbine assembly. The peripheral buoyancy element extends from the lower end of the blade and connects the water turbine assembly to the blade, and wherein the peripheral buoyancy element at least partly supports the rigid peripheral power generating unit by buoyancy. A bearing assembly is rotatably attached to the central column and at least one first strut connects the rigid peripheral power generating unit with the bearing assembly.

Resumen de: WO2019179881A1

The invention relates to a semi-submersible floater (12) defining an operating state and a non-operating state, and comprising at least two outer columns (24), a central column (22) for receiving a payload, and, for each outer column (24), an arm in the form of a pontoon (30) connecting said outer column to the central column and defining an arm axis (A) oriented from the central column (22) towards said outer column (24). Each arm (30) is formed from a first portion (42) and a second portion (44) which extend successively along the corresponding arm axis (A), each one over at least 10% of the total area (E) of said arm (30), along said arm axis. In the operating state of the floater (12), the second portion (44) of each arm (30) is at least partially filled with a ballast material (66), and the first portion (42) does not contain any ballast material.

Resumen de: US2019277255A1

A method of controlling a turbine of a floating wind turbine structure to reduce fatigue of its moorings comprises curtailing the turbine based on a pitching motion of the wind turbine structure and on a wind direction at the wind turbine structure relative to the orientation of moorings of the wind turbine structure. Optionally, the curtailment may be further based on the degree of displacement of the wind turbine structure from a reference location.

Resumen de: WO2019169742A1

Disclosed is a floating breakwater and wind energy integrated system for deep-sea farming, the system comprising a wind-driven power generation system, a floating breakwater system and a deep-sea farming system. The wind-driven power generation system comprises a wind-driven power generator (1), a tower (2) and a power transmission system. The floating breakwater system comprises a plurality of boxes (3) for a floating breakwater and steel connection ropes (4) between the boxes. The deep-sea farming system comprises a circular farming cage (6), a mooring buoy (7), a vertical anchor chain (8) with a weight block, a vertical anchor chain (9) and a positioning anchor chain (10). The system has a high practical value and a simple structure by means of the wind-driven power generator, the floating breakwater system and the deep-sea farming system being combined.

Resumen de: WO2019172773A1

There is disclosed a construction of a wind turbine comprising a frame (10) on a floating pontoon (1,2,3) wherein the frame is constructed as a lattice rig (10) upright on the pontoon (1,2,3) forming a plurality of rectangular or square openings in the rig (10) for receiving respective interchangeable wind turbine generators (12) with associated drive propellers (14) driven by incoming wind (40), and each wind turbine generator (12) being arranged to travel up the rear of the rig ( 10) and through the openings towards the front of the rig (11). The wind power plant is characterized in that each turbine generator (12, 14) comprises one or more pairs of propeller blades (14a, b) forming a propeller set (14) having a blade diameter defining the turbine rotational plane (30), each propeller set (14) is arranged at a distance from the front side (11) of the rig (10), to be rotated by the incoming wind (40) towards the rig (10). There is also described a method for mounting turbines with associated propeller sets and openings in the rig, respectively.

Resumen de: WO2019169741A1

The present invention relates to the technical field of marine renewable energy application, and particularly relates to a deep sea energy integration system based on a floating fan and a tidal current energy apparatus, being of a power generation structure having fans with a Spar platform as a foundation and integrating vertical axis tidal current energy, and comprising a Spar floating type wind power generation system and a tidal current energy power generation system. The Spar floating type wind power generation system of the present invention is simple in structure and high in stability, is suitable for middle and far sea areas, and is simple and convenient to mount and wide in application water depth. By combining an offshore wind power generation apparatus with the tidal current energy power generation apparatus to share the Spar platform, an anchor mooring line, a voltage transformation device, and a power transmission device, the power generation performance of the system is improved, the total power generation capacity is increased, marine renewable energy sources are effectively utilized, the investment costs are reduced, and the commercial application is accelerated. An external support of the tidal current energy power generation system of the present invention is of a cylindrical shape, thereby reducing wave loads, utilizing the tide current energy to the maximum extent, and moreover, ensuring the stability of the structure.

Resumen de: US2019263477A1

A method of assembling a floating wind turbine platform includes forming a base assembly of the floating wind turbine platform in either a cofferdam or a graving dock built in water having a first depth. The base assembly includes a keystone and a plurality of buoyant bottom beams extending radially outward of the keystone, wherein longitudinal axes of each of the plurality of bottom beams are coplanar. The cofferdam or the graving dock is flooded and the assembled base assembly is floated to an assembly area in water having a second depth. A center column and a plurality of outer columns are assembled or formed on the base assembly, a tower is assembled or formed on the center column, and a wind turbine is assembled on the tower, thereby defining the floating wind turbine platform.

Resumen de: WO2019162102A1

The invention relates to a floating base (2) for a floating off-shore system (1), in particular an off-shore wind turbine, comprising a base body (4) surrounding a hollow space (3) and consisting at least partially of concrete. The base body (4) comprises a plurality of concrete finished parts (5), which are clamped to one another by means of clamping elements (6) to form the base body (4), wherein a join (7) is formed between two respective adjacent concrete finished parts (5). The concrete finished parts (5) are clamped to one another without the arrangement of a bonding means in the join (7). An off-shore system (1), in particular a wind turbine, has a floating base (2) of this type.

Resumen de: US2019264656A1

The floating structure (20) for supporting a marine wind turbine comprises a tower (21), a float (23), and a transition element (22) between the tower (21) and the float (23). The tower (21) has a tower tubular wall (31) having a tower axisymmetric outer surface about a central axis (5) defined by a tower generatrix, the float (23) has a float tubular wall (33) and a float lower end closing wall (34), the float tubular wall (33) has a float axisymmetric outer surface about the central axis (5) defined by a float generatrix, and the transition tubular wall (32) has a transition axisymmetric outer surface about the central axis (5) defined by a curved concave transition generatrix which is tangent to the tower generatrix. The transition axisymmetric outer surface of the transition element (22) has a transition upper diameter equal than a tower lower diameter (D1) and a transition lower diameter equal than a float upper diameter (D2). At least the float tubular wall (33), the float lower end closing wall (34) and the transition tubular wall (32) are made of reinforced concrete forming together a reinforced concrete monolithic body.

Resumen de: US2019257291A1

Provided is a wind power generation system using a jet stream. The wind power generation system is implemented to include a flight vehicle configured to produce power through wind power generation while floating in the air and autonomously flying without a winch and configured to transmit the produced power to the ground, and a ground reception unit configured to receive a power signal transmitted from the flight vehicle and convert the power signal to electricity, wherein the flight vehicle enters a power generation location or escapes from the power generation location through buoyancy adjustment, the flight vehicle produces power through wind power generation while staying at the top of the troposphere or in the vicinity of the stratosphere where the jet stream is generated, and the flight vehicle includes a propeller configured to rotate in one direction due to the jet stream, a power generator configured to produce power by converting mechanical energy due to a rotational force of the propeller to electrical energy, a power generation control unit configured to control entry or escape into or from the power generation location, a buoyancy adjustment unit configured to increase or decrease buoyancy according to control of the power generation control unit, a laser conversion unit configured to convert power produced by the power generator to a laser, and a laser shooting unit configured to transmit the laser converted by the laser conversion unit to the ground.

Resumen de: WO2019156191A2

Provided is a power generation device which, by causing a rotating member to rotate using the flow of a plurality of fluids, is able to stabilize the rotation of the rotating member and perform stable power generation.　The power generation device is equipped with a floating base 10 that is provided with a flow passage 11 through which a fluid flows, a rotating member 20 that is rotatably supported by a support part 1 provided upon the floating base 10 and rotates about an axis by means of the flow of the fluid through the flow passage 11, and a rotation transmitting mechanism 60 that transmits the rotation of the rotating member 20 to a power generation part 50 installed upon the floating base 10. On the inlet opening 11a side of the flow passage 11 in the floating base 10, a fluid introduction part 30 is formed that takes in wind and water as fluids from an intake opening 31 formed to have a larger opening area than the inlet opening 11a and causes the fluids to flow into the inlet opening 11a.