Resumen de: EP4477877A1
The invention relates to a method for the maintenance of an floating offshore structure (1), said structure comprising a submersible hull (3), and wherein said method comprises the use of an auxiliary vessel (7) comprising at least one floating element (8) in which the relative operating depth between said submersible hull (3) and the auxiliary vessel (7) is adjusted until the auxiliary vessel (7) is in contact with the hull (3) and is supported or hangs thereon through bearing and/or hanging points (13, 13') resting on/from support points (14), the auxiliary vessel (7) and the hull (3) being integrally coupled. Advantageously, said integral coupling allows performing maintenance, installation and/or repair operations of the offshore structure (1) safely and efficiently, both for maintenance personnel and for the systems themselves involved in the mentioned operations.
Resumen de: EP4477524A1
The present invention provides a floating-type offshore wind power mooring system capable of reducing a yaw motion, the system comprising: a floating body comprising three columns, disposed at the vertices of a triangle, respectively, and three pontoon units, disposed in a triangular shape to connect the multiple columns; and a wind power generation unit disposed in any one of the three columns and comprising a mooring unit, wherein: the mooring unit comprises a first mooring line, a second mooring line, a third mooring line, and a connection unit; the first mooring line has one end connected to any one of the three columns; the second mooring line has one end connected to another of the three columns; the third mooring line has one end connected to the seabed; and the connection unit connects the other end of the first mooring line, the other end of the second mooring line, and the other end of the third mooring line so that the first mooring line, the second mooring line, and the third mooring line are arranged in a Y-shape when viewed from above.
Resumen de: CN118715158A
The invention relates to a device (1) for monitoring at least one anchor line (3) of a floating support, characterized in that it comprises:-at least one anchor line (3) connected to a floating support (2a, 2b, 2c, 2d),-at least one acoustic system (6) connected to the at least one anchor line (3), the at least one acoustic system is fixed to the at least one anchor line (3) and comprises an element, referred to as an oscillating element, which can be moved between two end positions and can be brought into contact with the resonating element in at least one of the two end positions. The at least one anchor wire (3) has an oscillating element and a resonating element, in order to generate sound waves when the oscillating element is in contact with the resonating element, and a system for processing the generated sound waves, capable of characterizing the normal operation of the at least one anchor wire (3) or the faulty operation of the at least one anchor wire (3) as a function of the generated sound waves.
Resumen de: EP4477878A1
The present invention may provide a floating type offshore wind structure having improved structural strength and reduced weight, the structure comprising: a floating body having buoyancy in the seat; and a wind power generation unit fixed to the floating body, wherein the floating body includes a plurality of columns disposed at the vertex positions of a triangle, respectively, and a plurality of pontoon units disposed in the form of a triangle, so as to connect the plurality of columns, the wind power generation unit is placed at any one of the plurality of columns, each of the plurality of columns includes a first side in contact with a first pontoon unit which is any one of the plurality of pontoon units, and a second side in contact with a second pontoon unit which is another one of the plurality of pontoon units, and each of the first side and the second side is a planar surface.
Resumen de: US2024409188A1
Anchoring system for floating platform (100) that eliminates pitching and rolling movements of the floating platform (100), by means of several anchoring lines (200) attached to the seabed (5), which are supported by several rotary fixing means (2, 3) or pulleys of the floating platform (100) and are all joined together in a common counterweight (1) hanging from the platform (100). Each anchoring line (200) comprises sublines (200d, 200c) (direct, crossover or diagonal), which keep the counterweight (1) always in correspondence with the central axis (300) of the floating platform (100). It also eliminates the pendulum movement of the counterweight (1) and is valid for floating platforms (100) with an odd number of protruding structural arms (12). The system is applicable to any type of floating platform (100), although it is particularly suitable for floating platforms that support offshore wind turbines and marine leisure platforms.
Resumen de: WO2024251514A1
The invention relates to a system for generating energy in open water, in which an offshore wind turbine WEA is releasably connected to a marine vehicle FPSO, which comprises a transformer device TR for converting into lower and/or higher electrical voltage, an electrolysis device ES for generating hydrogen H2, and a tank T for storing the hydrogen. The invention advantageously provides for dynamic changes between the operating modes of storage and transmission, redundancy and maintainability.
Resumen de: US2024410333A1
A method of damping motion of a wind turbine, the wind turbine comprising a rotor and a floating platform. A motion signal is generated which is indicative of a motion of the wind turbine. A wind direction signal is generated which is indicative of a wind direction relative to the floating platform. A damping signal is generated on the basis of the motion signal and the wind direction signal, and the motion of the wind turbine is damped on the basis of the damping signal, for instance by adjusting the pitch of the rotor blades. A phase of the damping signal may be controlled on the basis of the wind direction signal.
Resumen de: US2024410337A1
The invention relates to a floating foundation for wind turbine generators and a method for installing a wind turbine generator on top of and performing maintenance on said foundation. The floating foundation includes a tower and two support legs pivotally connected to the tower, forming a tripod-like structure. The floating foundation may include hydrodynamic damping elements and a single point mooring system leaving the foundation free to weathervane. The invention also relates to a method for using the structure as a crane, lowering and raising the turbine platform against and from e.g. a service barge during maintenance or assembly.
Resumen de: EP4474641A1
A ballast device includes guide rails (21, 22) arranged inside a floating platform (1) and along the circumferential direction of the floating platform; ballast blocks (31,32) moving along the guide raisl to adjust the position of gravity center of the floating platform. By arranging guide rails in the floating platform and ballast blocks moving along the guide rails, the distribution of the gravity center of the floating platform is changed, and the shaking of the platform is reduced, thus improving the stability of the fan, reducing the flutter of blades, prolonging the service life of the fan and increasing the power generation. A floating wind turbine and a control method for the ballast device is also provided.
Resumen de: FR3149292A1
Flotteur semi-submersible à contrepoids pendulaire pour éolienne offshore et son procédé d’installation L’invention concerne un flotteur (2a) semi-submersible à contrepoids pendulaire pour éolienne offshore et son procédé d’installation. Le flotteur comprend deux structures tubulaires (4) qui comprennent chacune trois branches tubulaires formant un triangle rectangle avec une branche horizontale (6), une branche verticale (8) et une branche en diagonale (10), les structures tubulaires étant assemblées entre elles par leur branche verticale (8) respective pour former un pylône destiné à être aligné avec un axe (X-X) d’un mât (12) de l’éolienne avec les sommets des structures tubulaires opposés au pylône étant espacés d’un angle (α) compris entre 25° et 80°, un tube de connexion (14), et un contrepoids (16) fixé aux structures tubulaires, d’une part au niveau du pylône, et d’autre part au niveau de leurs sommets opposés au pylône, la longueur du tendon (18-1) fixé au pylône étant supérieure à la longueur des deux autres tendons (18-2). Figure pour l’abrégé : Fig. 1.
Resumen de: WO2024245185A1
A transportation, in-place and disassembly method for an offshore large facility, relating to the field of ocean engineering. The method comprises: injecting air into a plurality of main floating boxes (101) to construct and form a heavy object bearing platform (1), and fixing a large facility (2) onto the heavy object bearing platform (1) in the form of an assembly or in the form of parts of the large facility (2); transporting the large facility (2) and the heavy object bearing platform (1) to a target location on the sea; placing the large facility (2) in place at a preset position in the target location; and when the large facility (2) is disassembled, fixing the large facility (2) on the heavy object bearing platform (1), and dragging the large facility (2) and the heavy object bearing platform (1) away from a bearing member at the preset position. The large facility (2) is assembled and fixed on the heavy object bearing platform (1) which is constructed by using the main floating boxes (101), and the large facility can be directly transported after installation is complete; and when the large facility (2) is disassembled, the large facility (2) is prevented from being transported in a disassembled and separated manner.
Resumen de: AU2023270109A1
A floating wind turbine installation comprises an asymmetric floating wind turbine structure that is tethered to the floor of a body of water by a mooring system. The floating wind turbine structure comprises a wind turbine mounted on a semi- submersible floating platform, and is oriented such that the wind turbine is positioned on an upwind side of the centre of mass of the floating wind turbine structure when the wind approaches the wind turbine structure in the direction of the prevailing wind at the location of the wind turbine installation.
Resumen de: WO2024248628A1
It is disclosed a system and a method for assisting in towing operations of a floating object A floating object is provided with a wireless communication system and at least one position sensor for measuring a position of the floating object in at least three degrees of freedom. A master tow vessel is connected to the floating object by a towline. The master tow vessel comprising a winch, a DP system, a two-way wireless communication system. A tow assist system/module/controller may be integrated with the DP system. An assisting tow vessel(s) is connected to the floating object by a towline. The assisting tow vessel(s) is provided with a two-way wireless communication system. The tow assist system/module/controller calculates set points (force and direction) for all the towing vessels based on input parameter(s) from the floating object, and input parameter(s) from each assisting towing vessel and input parameter(s) from the master tow vessel.
Resumen de: WO2024245910A1
An offshore power production installation (10) comprising: - at least one platform (12) adapted for floating on body of water (14), and comprising a hull (16), and at least one connector (18) having a connection member (20) forming a hook protruding from the hull (16), - a wind turbine (22) mounted on the platform, - at least one mooring line (24) adapted for connecting the platform (12) and a seabed (26), and comprising a rope (28) having an upper portion (30) forming an eye (32), the rope including a material having a Young's modulus larger than 50 GPa, the material being a polymer material or carbon fibers, and the rope being mobile with respect to the hull between: - a disconnected position in which the eye is away from the connector, and - a connected position in which the eye surrounds the connection member and the mooring line is intended to apply a traction (T) on the connection member.
Resumen de: WO2024246151A1
A buoyant offshore renewable energy system mounting platform is provided for use in supporting a renewable energy system in a body of water. The platform comprises a buoyant spar having a top end and a bottom end, the spar arranged to support a renewable energy system thereon; and a plurality of mooring lines arranged to tether the spar to a bed of a body of water such that the buoyant spar is positioned in the body of water at an operating depth. The plurality of mooring lines comprise: one or more first mooring lines affixed to a bottom end of the spar, the bottom end distal to the top end, and arranged to engage the bed of the body of water; and at least three further mooring lines, a first end of each of the further mooring lines being in communication with the spar between the top end and the bottom end thereof, and a second end of each further mooring line being arranged to engage the bed of the body of water such that said further mooring line is oriented diagonally relative to the spar at the operating depth; wherein at the operating depth, the first end of the spar is positioned above a surface of the body of water and the second end is positioned below the surface of the body of water. The described platform aims to provide a simple and stable offshore renewable energy system mounting solution having a simpler manufacture, assembly and deployment procedure along with easier ongoing access for deployment and maintenance vessels to minimise damage during deployment an
Resumen de: WO2024248625A1
It is disclosed a system (1) and a method for hook-up and tensioning of a floating wind turbine to the seabed. The floating wind turbine comprising at least one mooring line (3) adapted for mooring the floating wind turbine to the seabed. An installation vessel is provided with a dynamic positioning (DP) system and a winch (6), wherein the winch (6) is adapted for controlling a mooring line (3)/installation line (18). A tensioner is adapted for the mooring line/installation line. Controlling at least one of the winch and the dynamic positioning system on the installation vessel based on at least one input parameter for hook-up and tensioning of the at least one mooring line of the floating wind turbine to the seabed.
Resumen de: WO2024248627A1
It is disclosed a system and a method for assisting in towing operations of a floating wind turbine (FWT) An FWT is provided with a wireless communication system and at least one position sensor for measuring a position of the FWT in at least three degrees of freedom. A master tow vessel is connected to the floating wind turbine by a towline. The master tow vessel comprising a winch, a DP system, a two-way wireless communication system. A tow assist system/module/controller may be integrated with the DP system. An assisting tow vessel(s) is connected to the floating wind turbine by a towline. The assisting tow vessel(s) is provided with a two-way wireless communication system. The tow assist system/module/controller calculates set points (force and direction) for all the towing vessels based on input parameter(s) from the floating wind turbine, and input parameter(s) from each assisting towing vessel and input parameter(s) from the master tow vessel.
Resumen de: WO2024246460A1
The invention relates to a system (2) forming an anchor point for floaters of offshore wind turbines, comprising at least one containment enclosure (6) having an open bottom (8) and an open top (10), the containment enclosure being at least partially filled with a solid granular material (12) capable of withstanding shear with the seabed (4) on which the containment enclosure is intended to rest, the containment enclosure further comprising at least one attachment (14) for securing a mooring line (16) of the floater.
Resumen de: WO2024240966A1
The invention relates to a method for assembling an offshore wind turbine that is separated into two parts that are pre-assembled in a port: a jacket-type lattice substructure (15) anchored to the seabed with a foundation and a superstructure that includes a transition piece (4), a tower (1), a nacelle (2) and blades (3) transported floating in a vertical position. Tripod supports (5) are anchored on board the double-pontoon vessel (8) that is braced (9) at the bow and stern, and a triangle (7) supporting the superstructure is disposed on the tripod supports. During the transport phase, the hydraulics (14) included inside the tripod supports (5) are retracted, the movable parts are connected by a bolted joint, and the vessel (8) is ballasted. Once the positioning on the jacket (15) has been carried out, both parts are fastened by moorings (16), movement limiters (18) and impact limiters (18'), the load is transferred with the lowering of the hydraulic cylinders (14), and contact occurs between the upper portion of the jacket (15) and the receiver of the passive coupling system (23). Once the assembly is complete, the passive coupling system (23) arranged on the transition piece is recovered, the triangle (7) is dismantled, and the bracing (9) of the stern is folded down or removed to release the vessel (8).
Resumen de: WO2024240532A1
The invention describes a system and a method for connecting a service vessel (1) and a floating support structure (2) for a wind turbine (3). The service vessel comprises an aft coupling section (5) and vessel contact means (6), that can be lifted by elevation means, positioned on the aft coupling section (5), upward and downward between a higher contact position and a lower free position. The floating support structure (2) comprises a central coupling space (7) capable of receiving the aft coupling section (5) and support structure contact means (8) for interacting with the vessel contact means (6) when the aft coupling section (5) is centrally positioned in the coupling space (7) and the vessel contact means (6) are moved upward. The vessel contact means (6) are positioned at an altitude below the support structure contact means (8) when the vessel contact means (6) are at the lower free position.
Resumen de: EP4467441A1
An offshore power production installation (10) comprising:- at least one platform (12) adapted for floating on body of water (14), and comprising a hull (16), and at least one connector (18) having a connection member (20) forming a hook protruding from the hull (16),- a wind turbine (22) mounted on the platform,- at least one mooring line (24) adapted for connecting the platform (12) and a seabed (26), and comprising a rope (28) having an upper portion (30) forming an eye (32), the rope including a material having a Young's modulus larger than 50 GPa, the material being a polymer material or carbon fibers, and the rope being mobile with respect to the hull between:- a disconnected position in which the eye is away from the connector, and- a connected position in which the eye surrounds the connection member and the mooring line is intended to apply a traction (T) on the connection member.
Resumen de: AU2023208543A1
Techniques are disclosed herein for minimizing movement of a fixed marine structure. Using the technologies described, a wind turbine may be mounted on a fixed marine platform (e.g., a fully restrained platform (FRP)) that is secured by mooring lines that may be maintained at a tension to restrain movement of the platform due to environmental loads (e.g., wind, waves, etc.). The mooring lines may be attached to the platform with assemblies that include a stopper attached to the mooring line and engaged with a mooring porch. The stopper may be positioned and/or repositioned to adjust the tension on the connected mooring line and secured in the adjusted position using the various systems and techniques described herein.
Resumen de: AU2023268045A1
Described herein is an offshore floating platform comprising : a plurality of aeolian generators comprising : an aeolian tower having a longitudinal extension and provided with a first and a second end; a blade-type aeolian generator positioned at the first end; an engagement base positioned at the second end; a connection section, which joins two aeolian generators, comprising at least one connection element; wherein each engagement base is engaged with the connection element in such a way that each aeolian tower can move independently in a direction substantially parallel to the axis of longitudinal development of an aeolian tower.
Resumen de: WO2024236128A1
The floating offshore platform (2) comprises a support structure (4) having a beam (8) configured for extending between first and second structural elements (6, 7), the beam (8) being formed of several tubes (10) connected together and comprising a tank (12) delimited within at least two tubes (10) connected such that the individual internal volumes of said at least two tubes (10) are in fluid communication, and at least three connections (16) each configured for mechanically connecting an end of one tube (10) of the beam (8) to one of the first and second structural elements (7), wherein each connection (16) with the first structural element (6) is a bolted flange connection (16) and/or each connection (16) with the second structural element (7) is a bolted flange connection (16).
Nº publicación: WO2024236111A1 21/11/2024
Solicitante:
TOTALENERGIES ONETECH [FR]
TOTALENERGIES ONETECH
Resumen de: WO2024236111A1
A support structure (4) of the floating offshore platform comprises a beam (8) formed of one or several tubes (10) with a tank (12) delimited inside one or several tubes (10) of the beam (8), and a least one bolted flange connection (16) connecting an end of one tube (10) of the beam (8) to another structural element (6) of the support structure (4), each bolted flange connection (16) comprising a first flange (20) and a second flange (22) bolted together with bolts (24), wherein at least one bolted flange connection (16) is sealed with a sealing assembly (32) comprising at least one sealing member (34) configured for sealing the bolted flange connection (16).