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123
results.
Updated on
20/08/2026 [07:49:00]
Absstract of: US20260233807A1
A marine structure with improved stability including maneuvering and navigation apparatus and including at least one aerial platform; at least three adjustable-height masts; at least one underwater float equipped with at least one lateral thruster and at least one longitudinal thruster, the platform being lashed to the float(s) by the masts; static ballasting apparatus inside the float(s); servo-controlled dynamic ballasting apparatus located inside the masts; and position and trim control apparatus including at least one sensor and at least one servo-control apparatus for the dynamic ballasting apparatus in order to control, in real time, the position and stability of the marine structure based on swell and wind.
Absstract of: US20260235105A1
0000 A method of operating a downwind floating wind turbine comprising the downwind floating wind turbine floating in a body of water assuming mean heel angle within a range, the mean heel angle defined by a mean pitch angle of a central axis Y of a tower of the downwind floating wind turbine in a direction of wind; and the downwind floating wind turbine operating with a maximum rotor misalignment from a horizontal axis that is perpendicular to gravity while assuming the mean heel angle. The tower includes a turbine with a nacelle, hub and a plurality of blades extending from the hub, the plurality of blades configured to rotate about a rotor axis R, the rotor axis R having rotor tilt angle defined by an angle of rotor axis R relative to a perpendicular axis to the central axis Y.
Absstract of: US20260235108A1
0000 A semi-submersible float has four columns including a central column intended to receive a wind turbine mast, and at least three external columns that are connected to the central column by branches forming lower pontoons. The float is devoid of upper branches connecting the central column to the external columns and the external columns and the lower pontoons are each formed by an assembly of planar panels and each have a polyhedral cross-section. A method is provided for constructing such a float.
Absstract of: US20260233823A1
0000 A mooring system and monitoring system for a floating offshore wind turbine platform, including a static mooring system and a dynamic mooring system. The static mooring system includes three mooring cable bundles, with the center of the pillars (1) and the center of the mooring cable bundles being coincided. The dynamic mooring system includes power units, thruster units (4), and control units. Below each of the pillars of the wind turbine platform, a set of thruster units (4) is installed, with each set including 1 to 4 thruster units (4). The platform monitoring system implements real-time monitoring of the platform, obtaining the motion state and mooring tension of the platform. Based on the real-time motion state, the system calculates the required power for the thruster units (4) to meet the tilt and mooring tension requirements of the platform, the power is then executed by the thruster units (4).
Absstract of: WO2026167344A1
There is disclosed a support apparatus (105), a mooring tensioner (110), and a method of mooring an (offshore/floating/buoyant) structure (122) such as a Floating Offshore Wind Turbine (FOWT) using one or more anchors (120). The support apparatus (105) comprises a first arrangement for pivotally attaching/retaining the support apparatus (105) to an anchor (120), and a second arrangement for pivotally attaching/retaining the mooring tensioner (110) to the support apparatus (105). The support apparatus (105) comprises a drop-in arrangement (126) to drop the mooring tensioner (110) into the second arrangement. The support apparatus (105) can provide an increased range of azimuth offset angles between the mooring tensioner (110) and the anchor (120) to be moored, e.g., +/- 60°. The first arrangement allows for partial rotational motion of the support apparatus (105) relative to the anchor (120) around a first (substantially vertical) axis (X). The second arrangement allows for partial rotational motion of the mooring tensioner (110) relative to the support apparatus (105) around a second (substantially horizontal) axis (Y), the first axis and the second axis (X, Y) being substantially orthogonal to one another.
Absstract of: WO2026167342A1
There is disclosed a support apparatus (105) for a mooring device (110), and a method of mooring an (offshore/floating/buoyant) structure (120), such as a floating offshore wind turbine (FOWT). The support apparatus (105) comprises a first arrangement for pivotally attaching/retaining the support apparatus (105) to the structure (120) to be moored, and a second arrangement for pivotally attaching/retaining the mooring device (110) to the support apparatus (105). The support apparatus (105) comprises a pull-in arrangement (125) to pull the mooring device (110) into the second arrangement. The support apparatus (105) can provide an increased range of azimuth offset angles between the mooring device (110) and the structure (120) to be moored, e.g., +/- 120°. The first arrangement allows for partial rotational motion of the support apparatus (105) relative to the structure (120) along a first (substantially vertical) axis (X). The second arrangement allows for partial rotational motion of the mooring device (110) relative to the support apparatus (105) around a second (substantially horizontal) axis (Y), the first axis and the second axis (X, Y) being substantially orthogonal to one another.
Absstract of: WO2026167343A1
There is disclosed a support apparatus (105) for a mooring device (110), and a method of mooring an (offshore/floating/buoyant) structure (122) such as a Floating Offshore Wind Turbine (FOWT) using one or more anchors (120). The support apparatus (105) comprises a first arrangement for pivotally attaching/retaining the support apparatus (105) to an anchor (120), and a second arrangement for pivotally attaching/retaining the mooring device (110) to the support apparatus (105). The support apparatus (105) comprises a drop-in arrangement (126) to drop the mooring device (110) into the second arrangement. The support apparatus (105) can provide an increased range of azimuth offset angles between the mooring device (110) and the anchor (120) to be moored, e.g., +/- 60°. The first arrangement allows for partial rotational motion of the support apparatus (105) relative to the anchor (120) around a first (substantially vertical) axis (X). The second arrangement allows for partial rotational motion of the mooring device (110) relative to the support apparatus (105) around a second (substantially horizontal) axis (Y), the first axis and the second axis (X, Y) being substantially orthogonal to one another.
Absstract of: EP4789961A1
An anchor monitoring system for a marine wind turbine held in an operating position by an anchor includes a sensor assembly including a subsea housing fixedly attached to the anchor and positionable at an operating location on a seabed. A tilt sensor is positioned within the subsea housing and operates to measure an angle of the anchor. In addition, a second sensor selected from one of a pressure sensor, a temperature sensor, and a vibration sensor, and a third sensor selected from one of a pressure sensor, a temperature sensor, and a vibration sensor are positioned within the subsea housing. A controller operates to detect a change in an operating condition of the anchor in response to the receipt of a measured angle from the tilt sensor, a second measured value from the second sensor, and a third measured value from the third sensor.
Absstract of: GB2634235A
A subsea foundation 16 for anchoring a mooring line 14 comprises a mooring base 20, such as a chain that is simply laid upon the seabed in a straight, curved or looped configuration, hence extending across the seabed 18 substantially parallel to the seabed. The mooring base is then anchored by one or more deadman anchors 22 that are embedded in the seabed soil. For this purpose, one or more links 24 extend through the soil to couple the mooring base to the or each deadman anchor. One or more mooring lines can then be coupled to the mooring base.
Absstract of: WO2026162435A1
The invention relates to a method and a system for balancing a floating platform provided with an active ballast system. The platform comprises at least three floats (Nb ≥ 3) and three or more actuators which are configured to adjust the mass of liquid inside the floats. The method involves measuring parameters such as roll angle (φ), pitch angle (θ) and optionally altitude (z), each corresponding to one degree of freedom. These parameters are filtered by a low-pass filter, and a filtered-error vector (E) is calculated. An intermediate-command vector (U) is calculated, with the intermediate commands being proportional to the filtered errors, and is used with a distribution function (Z) in order to determine an actuator vector (A). The actuators are controlled to adjust the liquid masses, thereby stabilising the platform. This method is applicable in marine environments where the stability of the platform is important, such as in offshore wind turbines or floating production systems.
Absstract of: US20260225689A1
A mooring arrangement comprises at least two outer anchors, a reaction anchor disposed between the outer anchors and at least two anchor legs that extend outwardly from the reaction anchor to the outer anchors. The reaction anchor has multi-directional effect, being configured to react against outward forces applied by tension in the mutually-opposed anchor legs. Each anchor leg comprises a tensioner, an inner line extending from the reaction anchor to the tensioner, and an outer line extending from the tensioner to the outer anchor. A tensioner line, which may be the inner line or the outer line, is fixed to the tensioner whereas a mooring line extends through the tensioner. An upper section of the mooring line extends from the tensioner to a moored floating body. A lower section of the mooring line forms part of the anchor leg, as either the inner line or the outer line.
Absstract of: US20260225695A1
0000 A set is provided comprising a floating marine platform and an assembly tool for the assembly of the floating marine platform. The floating marine platform comprises a central column, multiple peripheral columns circumferentially around the central column, radially extending outriggers that connect the peripheral columns with the central column, and tendons spanning between each adjacent pair of peripheral columns. The peripheral columns comprise a tendon receptacle with a tool dock, a shim chamber and a tendon passage. The assembly tool comprises a tool connector, a tendon tensioner and a tensioning shim installer. The tendon tensioner comprises a tendon puller.
Absstract of: WO2025072519A1
Systems and methods for assembling, launching, retrieving, and maintaining floating wind foundations including tower, nacelle, and blades with two-way operability are disclosed. The systems include a dock having a lift platform and a first plurality of chain jacks configured to lift and lower the lift platform. The lift platform has a width and length with a span sufficient to receive, lower, and lift a floating wind foundation. The lift platform includes an upper deck and a plurality of box truss girders supporting the upper deck. The box truss girders extend across the span of the width of the lift platform and are of sufficient strength to support a floating wind foundation.
Absstract of: WO2025068658A1
The invention relates to a method for the active and centralised ballasting of a semi-submersible float (2) for an offshore wind turbine, the float comprising at least four columns, including a central column (4) and three outer columns (6), which are connected to the central column by lower arms forming pontoons (8), wherein the method comprises the controlled and centralised displacement of a ballast fluid between sealed compartments (14) formed inside each pontoon (8), so as to modify the inclination thereof. The invention also relates to a semi-submersible float for an offshore wind turbine with active and centralised ballasting.
Absstract of: WO2025068659A1
The invention relates to a method for the active and individualised ballasting of a semi-submersible float (2) for an offshore wind turbine, the float comprising at least four columns, including a central column (4) and three outer columns (6), which are connected to the central column by lower arms forming pontoons (8), wherein the method comprises, for each pontoon, the individualised and controlled displacement of a ballast fluid between at least two separate sealed compartments (14, 16) located inside an assembly formed by the pontoon and the associated outer column, so as to modify the inclination of the float. The invention also relates to a semi-submersible float for an offshore wind turbine with active and individualised ballasting.
Absstract of: US20260217342A1
A floatable renewable energy platform is provided and comprises a superstructure including one or more generally horizontal, above-wave structural support members. The superstructure is supported by a plurality of floats interconnected by the structural members, and the platform is configured to provide an air gap between still water surface and the structural members in the range 10 m to 30 m.
Absstract of: WO2026157078A1
A method for integrated planning and control of the dynamic stability of a floating wind turbine. In the method, an integrated planner is externally connected to a controller, so as to coordinately and dynamically adjust core control parameters of three control sub-systems, namely, a blade pitch control sub-system, a generator torque control sub-system and a nacelle yaw control sub-system; and a planner based on a nonlinear dynamic mathematical model may be used to dynamically adjust controller parameters, so as to realize comprehensive optimization of the dynamic stability objective. Without changing the architecture of an existing industrial controller of a floating wind turbine, and by means of dynamically adjusting a series of core control parameters of the industrial controller, the method realizes a comprehensive improvement in the operational dynamic stability of the floating wind turbine, suppresses the motion of a floating platform-support structure, reduces fluctuations in rotor speed and active power, and improves the operational stability and energy efficiency of the floating wind turbine, thereby having significant engineering application value.
Absstract of: US20260218678A1
To provide high stability at low cost, a ring-based floatation system for a floating vertical-axis wind turbine is proposed. The system uses a buoyancy torus with a finite shell thickness, which can be sealed to prevent water from leaking inside the torus. This torus shape has an outside and inside diameter on a horizontal plane while having a circular cross-section in a vertical plane. This buoyancy torus serves as a floatation tube to provide buoyancy at a large maximum radial extent to enhance platform stability in terms of both inertia and metacentric height. The torus shape (or a similar faceted shape made of several cylindrical tubes connected in a circle) also provides high radial asymmetry and high structural robustness. This buoyancy torus supports rotating wind turbine blades which are affixed to a rotation ring, where the torus and the rotation ring have the same axis of revolution and where the blades and the rotation ring rotate about this axis of revolution. One or more electrical generators can be placed between the rotation ring and the buoyancy torus (or a foundation for an onshore wind turbine) to convert the rotational power of the blades (communicated to the rotation ring) into electrical power. This ring-based buoyancy platform can be ballasted by a variety of methods and can also be used to support offshore oil and gas drilling platforms.
Absstract of: WO2025061959A1
The invention describes a floating support structure (1) for supporting an off shore wind turbine comprising a first, second and third main section (10a, 10b, 10c) each comprising a horizontal part and a vertical part (12a, b, c) directly or indirectly connected to the radial end of the horizontal part and the central ends of the horizontal parts (11a, b, c) are joined in a central region thus creating a coupling space (7) underneath the horizontal parts and between the vertical parts. The floating support structure further comprises a transition piece (15) comprising a connecting flange (16) for connecting a coupling end of the wind turbine tower (101) to the support structure. The transition piece further comprises a reinforcement body (17) welded onto the first, second and third horizontal parts.
Absstract of: US20260210338A1
0000 A guiding system for exchanging a wind turbine blade, which uses an internal lifting and lowering system fixed to a rotor. The guiding system comprises semi-rigid passive retaining lines that form a safe catenary or track for lowering the blades without same hitting the tower or the ground as a result of incident winds of up to 15 m/s. A clip fastened to the end part of the blade slides along the retaining lines with the horizontal movement of the blade. The catenary may optionally have intermediate points, and the tension thereof is dependent on the incident wind: the greater the wind, the greater tension. The guiding system can be used for onshore wind turbines, floating offshore wind turbines connected to a spring, and boat-assisted offshore wind turbines on the high seas.
Absstract of: EP4778823A2
0001 A floating structure (1) having three buoyant bodies (3,5,7) for supporting a horizontal axis wind turbine (6) and wind turbine tower (27). The floating structure (1) is provided with a geostationary mooring system that permits it to weathervane in order to head the wind turbine (6) into the wind and has a wind turbine tower mount (29) for supporting the wind turbine tower (27). A central buoyant body (3) is located partially above water during assembly and tow out from port and is ballasted so that it is underwater when moored offshore, such that the floating structure (1) becomes a semi-submersible. The three buoyant bodies (3,5,7) are ship-shaped in form which reduces loads in the mooring system, and are made from stiffened flat plates, which are easier for many yards and fabrication shops to make, compared to cylindrical hulls.
Absstract of: US20260200561A1
Floating intervention vessel intended to temporarily moor itself on an offshore wind turbine platform, associated intervention assembly and facility The invention relates to a vessel comprising a float (80) and a wind turbine intervention assembly, carried by the float (80) The float (80) comprises a buoyant body (86) and a fastening baseplate (88) protruding from the buoyant body (86) along a fastening axis (A-A′) on a lower surface of the offshore wind turbine platform. The buoyant body (86) defines a ballast-receiving volume, the vessel comprising a ballast controller configured to control the amount of ballast received in the ballast-receiving volume to raise an upper contact surface (94) of the baseplate (88) to place it in contact with a lower surface of the offshore wind turbine platform, the float (80) being monohull.
Absstract of: US20260200554A1
0000 Mooring systems for mooring a structure floating on a surface of a body of water. In some embodiments, the mooring system can include a base structure configured to be disposed on a seabed and a plurality of mooring assemblies. Each mooring assembly can include a yoke and a tether. The yoke can include a first end and a second end. The first end of the yoke can be configured to be connected to the base structure such that the yoke can be partially rotatable about an axis relative to the base structure. The tether can include a first end and a second end. The first end of the tether can be configured to be connected to the yoke toward the second end of the yoke. The second end of the tether can be configured to be connected to the structure floating on the surface of the body of water.
Absstract of: US20260200556A1
A method (100) for transporting hydrogen from a floating wind turbine (10) to a watercraft (11) is proposed in order to transport environmentally friendly energy generated by an offshore wind turbine from the offshore wind turbine to land in a simple and safe manner, wherein hydrogen is provided in a holding tank (31) of a floating wind turbine (10), wherein a watercraft (11) with a transportation tank (36) is positioned at the floating wind turbine (10), wherein the hydrogen is conveyed from the holding tank (31) to the transportation tank (36) by means of a line (35) configured to convey the hydrogen.
Nº publicación: US20260200559A1 16/07/2026
Applicant:
CHEVRON U S A INC [US]
CHEVRON U.S.A. INC.
Absstract of: US20260200559A1
A tank is secured under the keel of a floating structure for offshore energy development. The tank is filled with ballast material that supplements or replaces the ballast already present on the floating structure, thereby gaining larger topsides payload capacity for the floating structure or increasing stability and motion performance of the floating structure.
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