WO2019106283A1 - Structure de support flottant pour éolienne offshore et procédé d'installation d'une éolienne munie d'une telle structure de support - Google Patents
Structure de support flottant pour éolienne offshore et procédé d'installation d'une éolienne munie d'une telle structure de support Download PDFInfo
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- WO2019106283A1 WO2019106283A1 PCT/FR2018/053006 FR2018053006W WO2019106283A1 WO 2019106283 A1 WO2019106283 A1 WO 2019106283A1 FR 2018053006 W FR2018053006 W FR 2018053006W WO 2019106283 A1 WO2019106283 A1 WO 2019106283A1
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- WIPO (PCT)
- Prior art keywords
- basket
- float
- counterweight
- wind turbine
- ballast
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
- B63B1/02—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement
- B63B1/10—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls
- B63B1/107—Semi-submersibles; Small waterline area multiple hull vessels and the like, e.g. SWATH
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B77/00—Transporting or installing offshore structures on site using buoyancy forces, e.g. using semi-submersible barges, ballasting the structure or transporting of oil-and-gas platforms
- B63B77/10—Transporting or installing offshore structures on site using buoyancy forces, e.g. using semi-submersible barges, ballasting the structure or transporting of oil-and-gas platforms specially adapted for electric power plants, e.g. wind turbines or tidal turbine generators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
- F03D13/10—Assembly of wind motors; Arrangements for erecting wind motors
- F03D13/126—Offshore
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
- F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
- F03D13/25—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors specially adapted for offshore installation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
- F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
- F03D13/25—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors specially adapted for offshore installation
- F03D13/256—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors specially adapted for offshore installation on a floating support, i.e. floating wind motors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
- F03D13/40—Arrangements or methods specially adapted for transporting wind motor components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
- B63B1/02—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement
- B63B1/10—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls
- B63B1/12—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls the hulls being interconnected rigidly
- B63B1/125—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls the hulls being interconnected rigidly comprising more than two hulls
- B63B2001/126—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls the hulls being interconnected rigidly comprising more than two hulls comprising more than three hulls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
- B63B2035/4433—Floating structures carrying electric power plants
- B63B2035/446—Floating structures carrying electric power plants for converting wind energy into electric energy
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B2241/00—Design characteristics
- B63B2241/02—Design characterised by particular shapes
- B63B2241/10—Design characterised by particular shapes by particular three dimensional shapes
- B63B2241/12—Design characterised by particular shapes by particular three dimensional shapes annular or toroidal
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2230/00—Manufacture
- F05B2230/60—Assembly methods
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2230/00—Manufacture
- F05B2230/60—Assembly methods
- F05B2230/61—Assembly methods using auxiliary equipment for lifting or holding
- F05B2230/6102—Assembly methods using auxiliary equipment for lifting or holding carried on a floating platform
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2240/00—Components
- F05B2240/90—Mounting on supporting structures or systems
- F05B2240/93—Mounting on supporting structures or systems on a structure floating on a liquid surface
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2240/00—Components
- F05B2240/90—Mounting on supporting structures or systems
- F05B2240/95—Mounting on supporting structures or systems offshore
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2240/00—Components
- F05B2240/90—Mounting on supporting structures or systems
- F05B2240/97—Mounting on supporting structures or systems on a submerged structure
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/727—Offshore wind turbines
Definitions
- the present invention relates to the general field of offshore wind turbines, that is to say located offshore, and more particularly to floating support structures for floating offshore wind turbines.
- the invention also relates to a method of installing an offshore wind turbine provided with such a support structure.
- An offshore wind turbine aims to use wind energy to produce electricity through a turbine and an electric generator.
- Floating turbines comprise a turbine generally formed by a motor with several rotating blades with horizontal axis and an electric generator coupled to the engine, the engine and the generator being attached to an upper end of a mast (or pylon) vertical.
- the lower end of the mast is mounted on a floating support structure.
- the “spar” platforms nevertheless have a certain number of drawbacks which severely limit their capacity of use in the field of offshore wind.
- For a high-power wind turbine it is necessary to install the wind turbine to have a minimum depth of the order of a hundred meters to deploy a platform "spar". More generally, it is necessary to have a deep zone and with relatively calm sea conditions to manage the critical phases of turning the platform from the horizontal position to the vertical position, the ballasting of the platform, and the assembly of the turbine over the platform.
- the use of “spar” platforms requires the use of high capacity crane vessels, which are rare and costly for installing wind turbines on offshore platforms.
- "spar" platforms have a large drag in the water which limits the speeds of displacement of these platforms in the case of their towing.
- the stability of a floating wind turbine can be broken down into a static stability problem and a dynamic stability problem.
- the problem of dynamic stability comes from non-constant forces in time exerting a destabilizing couple for the structure, inducing movements. These are related to fluctuations in wind speed on the wind turbine or waves.
- the wave energy is mainly concentrated in the first meters of sea below the free surface.
- Floating support structures mainly located near the free surface such as barges or semi-submersible platforms are highly subject to waves, so that these structures are generally concerned with dynamic stability problems.
- the present invention therefore has the main purpose of providing a floating support structure for offshore wind which does not have the aforementioned drawbacks.
- a floating support structure for offshore wind comprising a float intended to be partially immersed and on which is intended to be assembled a wind turbine mast, and a counterweight connected to the float and intended to be immersed under the float
- the float comprises a main structure of toric or polygonal shape with at least five sides which is formed by at least one tube intended to be immersed, a central tubular structure having a suitable diameter for receiving the mast of the wind turbine and comprising a section adapted to be ballasted in order to adjust the float waterline, a first series of horizontal struts regularly distributed around a vertical axis and connecting the main structure to the central structure , and a second series of oblique strokes evenly distributed around a vertical axis and connecting the main structure to the central structure forming an angle between 15 ° and 60 ° with the horizontal struts; and the counterweight comprises a basket adapted to receive a ballast material and ballast links connecting the basket to the main
- the invention thus consists of two elements (the float and the counterweight) which are interconnected by ballast links: the floating element is easy to transport, its draft during construction and installation is low, and it is compact and installable by conventional offshore industry solutions, the wind turbine mast and the nacelle can be installed during the construction of the float.
- the floating support structure according to the invention is remarkable in particular by the minimal structure of the float which has a bicycle wheel shape carried horizontally in which the thrust of Archimedes which is exerted on it would be provided in part by the central tubular structure (corresponding to the hub of the wheel) and partly by the ring-shaped or polygonal structure (corresponding to the tire of the wheel).
- the particular shape of the main structure of the float makes it possible to obtain a thrust which is distributed continuously around the vertical axis, and not a punctual push. In the same way, this continuity of shape makes it possible to avoid that the forces of the swell on the float do not vary with the variations of incidence, unlike a float which would be in point distribution.
- such a structure allows to use a float immersion depth which is typically between 15 and 30 m. At such a depth, because of the continuity of shape of the main structure of the float, the floating support structure is almost transparent to the effects of waves and surface currents, which allows the wind to overcome maximum dynamic stability problems. More generally, the wind turbine using such a floating support structure can be installed in economically accessible areas because a minimum water depth of about 70m will suffice.
- the floating support structure according to the invention allows the exploitation of wind energy for the purpose of producing electricity by water depths greater than 70 m, without a high water depth limit.
- the wind turbine using such a floating support structure can therefore be implanted in economically accessible areas.
- the floating support structure according to the invention makes it possible to obtain increased stability in rotation at the level of the wind turbine, both in motion and in acceleration.
- the mass of materials for the manufacture of this support structure is relatively small, which reduces manufacturing costs.
- This floating support structure is also compatible with all current floating wind turbine designs up to 9.5 MW.
- the structure remains compatible with future wind turbines with a capacity of 10 to 15 MW and more which should come into production in the coming years.
- the structure according to the invention provides great stability to the wind turbine supported both in amplitude in rotational movements and in angular accelerations. This stability relative to the wave, wind and current conditions encountered in different regions of the world remains compatible with the technical specifications of wind turbines in the offshore wind industry.
- the structure according to the invention requires minimized voltage levels in the anchor lines holding the wind turbine. Moreover, she is Compatible with industry standard electrical export cable designs. It minimizes the surface area of the free surface, does not physically interfere with the navigation of small vessels in the immediate vicinity, and minimizes the mass of structural materials used by floating support structures of wind turbines.
- the manufacture of the structure according to the invention can be carried out in the various structural materials. It preferably uses metallic materials and standard manufacturing processes of the offshore structure construction industry.
- the structure according to the invention can further implement non-metallic materials at the level of the tendons and the anchoring system which are in the range of current standard capabilities of the industry.
- the dimensions, weight and draft of the floating support structure are compatible with most industrial ports and allow the assembly of the wind turbine elements on the docked mooring support structure.
- the assembly of the support structure and the wind turbine can be floated by sea conditions compatible with most regions of the globe. These operations can be done safely with acceptable operational risk conditions using industry standard means of installation. Alternatively, the assembly of the floating support structure and the wind turbine can be done at sea.
- the point of action of the Archimedes thrust should be located above its center of gravity.
- the center of gravity of a wind turbine is located high enough at the mast, because of the weight of the nacelle and blades, it is appropriate to add a counterweight in the bottom of the support structure. This counterweight will apply a resistant torque at the support structure.
- the counterweight comprises a plurality of baskets each adapted to receive a ballast material and positioned vertically below each other being regularly spaced.
- the oblique braces form an angle of
- the float further comprises an additional buoyancy structure formed by an assembly of additional floats mounted on the tube of the main structure.
- the main structure of the float is formed by an assembly of a plurality of tubes, they are connected to each other via junction plates welded to the ends of the tubes.
- the invention also relates to a first embodiment of a method of installing an offshore wind turbine provided with a floating support structure as defined above, comprising the steps of:
- the method comprises the successive steps of:
- preferably temporary buoys may be connected to the basket of the counterweight to reduce the weight during detachment of the seabed.
- the basket of the counterweight can be placed on the seabed through a raising system on which the basket rests.
- the method comprises the successive steps of:
- the method comprises the successive steps of:
- the method comprises the successive steps of:
- the method comprises the successive steps of:
- connection of the ballast links to the basket of the counterweight progressively filling the submersible floating support structure to lose buoyancy until the ballast links come into tension and the submersible floating support structure disengages completely from the counterweight basket;
- Sea transport of the counterweight basket can be realized with a basket previously filled with ballast material.
- the offshore transport of the counterweight basket can be accomplished with a basket of lightly filled ballast material, with the remainder of the ballast material filling the basket once the wind turbine and its counterweight have been towed over the area of the ballast. implantation.
- FIG. 1 is a side view of an offshore wind turbine mounted on a floating support structure according to the invention
- FIG. 2 is a perspective view of the float of the floating support structure of FIG. 1;
- FIG. 3 is a perspective and torn view of a basket of the floating support structure of FIG. 1;
- FIG. 4 is a top view of the basket of Figure 4.
- FIG. 5 is a sectional view along V-V of Figure 4.
- FIGS. 6A to 6Q illustrate the various steps of a method of installing an offshore wind turbine provided with a floating support structure according to a first embodiment of the invention
- FIGS. 7A to 7K illustrate the various steps of a method of installing an offshore wind turbine provided with a floating support structure according to a second embodiment of the invention.
- FIGS. 8A to 8H illustrate the various steps of a method of installing an offshore wind turbine provided with a floating support structure according to a third embodiment of the invention
- FIGS. 9A to 10C illustrate the various steps of a method of installing an offshore wind turbine provided with a floating support structure according to a fourth embodiment of the invention
- FIGS. 10A to 10D illustrate the various steps of a method of installing an offshore wind turbine provided with a floating support structure according to a fifth embodiment of the invention.
- FIGS. 11A to 11F illustrate the various steps of a method of installing an offshore wind turbine provided with a floating support structure according to a sixth embodiment of the invention.
- Figure 1 shows, in side view, a floating offshore wind turbine 2 located offshore offshore.
- such a wind turbine 2 comprises a turbine 4 generally formed by a motor with several rotary blades with a substantially horizontal axis XX, and an electric generator 6 coupled to the motor, the motor and the generator being fixed at an upper end of a mast 8 (or pylon) vertical.
- the lower end of the mast 8 is mounted on a floating support structure 10 according to the invention.
- the floating support structure 10 consists of a float 12 which is intended to be partially immersed (the sea level is symbolized in FIG. 1 by line 14) and of a counterweight 16 which is connected to the float 12 and which is intended to be immersed under it.
- the lower end of the mast 8 of the wind turbine is assembled on the float 12 of the floating support structure.
- the float 12 comprises a main structure 18 having a polygonal shape with at least five sides, this polygonal main structure being formed by an assembly of circular section tubes 20 intended to be immersed.
- the main structure has a toric shape. In this variant, it is formed by a single circular section tube.
- the main structure 18 of the float has a polygonal shape with six sides.
- Such a hexagonal shape represents the preferred embodiment. Indeed, this form offers the best compromise in terms of structure and hydrodynamic behavior.
- the tubes 20 of the main structure of the float are circular in section and are interconnected by means of connecting plates 22 which are welded to the ends of the tubes. These tubes 20 are stiffened by a system of crossed stiffeners (not shown in the figures) for optimizing the weight of the structure subjected to the hydrostatic pressure.
- the tubes are compartmentalized so that the stability of the system is not called into question if one of these compartments fills with seawater.
- the main structure 18 of the float further comprises an additional buoyancy structure formed by an assembly of additional floats 24 which are mounted on the tubes 20 and which make it possible to raise the freeboard of the float and wind turbine assembly in towing phases to improve stability.
- additional floats can be recovered after the towing phase or left on the float after immersion.
- the float 12 also comprises a central tubular structure 26 centered on a vertical axis Y-Y and having a diameter adapted to receive the mast 8 of the wind turbine.
- This central structure 26 comprises a section (not shown in the figures) which is adapted to be ballasted with seawater in order to adjust the float water line to the desired immersion depth.
- the float 12 further comprises a first series of horizontal bracons 28 which are regularly distributed around the vertical axis YY and which connect each end of the tubes 20 of the main structure to the central structure 26, and more particularly to the lower part of the -this. There are as many horizontal struts 28 as tubes 20 forming the main structure.
- This structure of horizontal struts 28, of cross-linked type although very simple, makes it possible to reduce the bending moments in the tubes 20 of the main structure at secondary moments. This optimizes the working mode of the tubes in tension-compression.
- the float 12 further comprises a second series of oblique bracons 30 which are also regularly distributed around the vertical axis YY and which connect each end of the tubes 20 of the main structure to the central structure, and more particularly to the upper part of the at an angle ⁇ of between 15 ° and 60 ° and preferably equal to 30 ° with the horizontal braces 28.
- the horizontal bracons there are as many oblique braces 30 as tubes 20 forming the structure main.
- the horizontal and oblique struts 30 are in the form of tubes.
- the connection between the struts and the main structure of the float is at the junction plates 22. This assembly technique facilitates the adjustment and welding of large bracons.
- the counterweight 16 of the floating support structure comprises a basket 32 which is able to receive a ballast material 34.
- ballast material 34 In order to provide a substantial mass counterweight while reducing costs, it is necessary to use a weighty material that is both economical and compatible with the marine environment.
- the best compromise for the ballast material 34 is found with heavy ballast materials.
- this ballast material may be chemically stabilized magnetite to be made compatible with the environment.
- this ballast material may be backfill material, sand, cast iron or recovery metal.
- the diameter of the basket varies, depending on the application, typically between 8m and 22m and its height between 6m and 10m.
- the basket 32 of the counterweight consists of a cylindrical envelope 32a terminated by a bottom 32b convex or frustoconical in its lower part.
- the weight is taken up by ballast links 36 (or tendons) - preferably six in number - connecting the basket to each end of the tubes 20 of the main structure. More specifically, these ballast links 36 are assembled on a cylindrical central connector 38 which is located in the center of the cylindrical envelope 32a of the basket in its upper part.
- the central connector 38 makes it possible to concentrate the weight of the counterweight at a central point situated in the axis of the central structure 26 of the float. This concentration of weight at one point is a major factor in the effectiveness of the counterweight system, it allows the ballast to remain stationary relative to the float regardless of the angle of inclination as the ballast links 36 remain all tense .
- the ballast links 36 connecting the basket 32 to each end of the tubes 20 of the main structure form an angle b between 15 ° and 45 ° with the vertical axis Y-Y.
- the angle b formed by the ballast links 36 with the vertical axis is preferably given by the following equation:
- b arctan [(Dc / 2 + Lh + Df) / (P - Te - Ep - Gp)] in which: P is the water depth; Te is the draft measured at the bottom of the main structure; Ep is the thickness of the basket; Gp is the distance from the bottom of the basket to the seabed; De is the diameter of the central structure; Lh is the length of the horizontal bracons; and Df is the diameter of the tubes of the main structure.
- the bottom of the float 12 of the floating support structure according to the invention is located at an immersion depth typically of 25 m.
- the minimum structure for resuming traction forces are the ballast links 36.
- the counterweight is therefore attached to the float by as many ballast links that the main structure of the float has sides. At this level, the ballast links 36 are connected to the connecting plates 22.
- the ballast links 36 may be as light as possible because their mass plays only a marginal role in the stability of the floating support structure. They must also be able to take the efforts generated by the weight of the counterweight and have a minimum elasticity and deformation over time.
- these ballast links are ropes made of synthetic materials having a low elongation (typically high density polyethylene). These materials combine good mechanical properties with negative weight in water (material density less than 1).
- these ballast links may be cables, chains or metal tubes.
- the spacing of the attachment points of the ballast links 36 on the main structure 18 of the float is chosen so that when the inclination of the direction of the mast 8 of the wind turbine with the vertical axis YY is maximum, all Ballast links remain in tension.
- the efforts to which the system is subjected are increased by a safety factor depending on the application case.
- the inclination of the wind turbine under the action of the resultant drag of the force of the wind and the weight of the wind turbine causes a transfer of tension of the ballast links located in the direction opposite to the wind towards those located in the direction of the wind.
- the counterweight then remains in the axis of the mast of the wind turbine and this flexible structure behaves mechanically as a rigid structure, the ballast remaining fixed relative to the float.
- this pendulum structure performs the counterweight function of a "spar" platform, while having a lighter structure, transparent to the swell and installable with the turbine attached to the float port.
- the floating support structure according to the invention is designed to be stable without anchoring system.
- the anchoring system therefore does not participate in the stability of the floating support structure. This results in much lower tension levels in anchor lines and less geometric constraints on anchors.
- FIGS. 6A to 6Q there will be described a method of installation according to a first embodiment of the invention of an offshore wind turbine provided with a floating support structure as described above.
- FIGS. 6A to 6H illustrate the different stages of preparation and installation at the bottom of the sea of the counterweight of the floating support structure according to the invention.
- a barge 100 carrying in particular the basket 32 of the counterweight of the floating support structure and a dead body 104 is brought to sea on site.
- the dead body 104 is then lowered at sea to the vertical of the barge 100 by a crane 106 ( Figure 6B) and then deposited on the seabed ( Figure 6C).
- a remotely operated underwater vehicle 108 also called ROV for
- the orin 110 is a rope connected to a temporary buoy on the one hand and to a dead body 104 on the other hand, in order to provide a point of attachment to the dead body above the bottom of the sea and to below the final depth of the ballast basket.
- the basket 32 (empty) of the counterweight of the floating support structure is also lowered by the crane 106 of the barge towards the bottom of the sea to be connected to the orin 110 under the control of ROV 108 (FIG. 6F).
- Flotation modules 112 (three in number in the figures) previously filled with air are then lowered to sea from the barge and fixed on the basket 32 of the counterweight ( Figure 6G).
- this hitch is disconnected from the barge 100 and the ROV 108 is reassembled on board it ( Figure 6H).
- the float 12 of the floating support structure on which the mast 8 of a wind turbine 2 has been previously mounted is then towed by a tug 114 to the vertical of the basket 32 of the counterweight moored to the body.
- This towing may be carried out by means of a tug connected to the main structure 18 of the float by one or more towing cables 116.
- the air present inside the floatation modules 112 is then released (and replaced by seawater).
- the ROV 108 can then be piloted to come detach one after the other each flotation module emptied of its air to go up in the barge 100 by means of a wire 118 of the crane 106 ( Figure 6L).
- the basket 32 of the counterweight acts on the ballast links 36 for tender and the orin 110 is relaxed (Figure 6M).
- the orin 110 can thus be easily disconnected from the basket of the counterweight by the ROV 108 (FIG. 6N).
- the float 12 and the wind turbine with the basket 32 of the counterweight connected by the ballast links are then towed by the tug 114 to the area where the wind turbine is installed at sea (FIG. 60).
- a barge 120 fills the basket 32 of the counterweight with the ballast material 34. This operation can be carried out by means of a tube 122 connecting the basket to the barge 120 ( Figure 6P).
- the filling of the basket 32 of the counterweight by the ballast material 34 has the consequence of immersing the float 12, this immersion being controlled to allow the bottom of the float 12 of the floating support structure to be located. at its depth of immersion (typically 25 m).
- the counterweight may comprise a plurality of baskets each receiving a ballast material and which are positioned vertically below each other being regularly spaced (for example every 10m).
- a barge 200 prepares the temporary area of the seabed to allow it to bear the weight of the baskets filled with ballast counterweight of several floating support structures. This preparation consists in dumping on the seabed a backfill material allowing the seabed to bear the weight of the baskets loaded with ballast material while maintaining an acceptable stability of attitude.
- a set of empty counterweight baskets 32 are lowered to sea from the barge 200 and deposited on the seabed by means of a crane 202 (FIG. 7B).
- the counterbalance baskets are deposited one after another as the barge moves forward, their number depending on the number of offshore wind turbines in the field to be installed ( Figure 7C).
- FIG. 7D the counterweight baskets 32 deposited on the seabed are then filled one after the other with ballast material 34 from the barge.
- temporary buoys 204 are connected to these baskets by means of the crane 202 of the barge and the help of a ROV 206 (Figure 7E).
- Figure 7F shows the set of counterbalance baskets each provided with several temporary buoys 204.
- the float 12 of the floating support structure on which the mast 8 of a wind turbine was previously mounted is then towed by a tug 208 to the vertical of a basket 32. counterweight.
- the main structure of the float is then connected to the counterweight basket by means of the ballast links 36 (FIG. 7G).
- the barge 200 is brought in to disconnect the temporary buoys 204 from the basket 32 one after the other. This operation is carried out by means of ROV 206 which disconnects each temporary buoy and back on board the barge with a rope 210 ( Figure 7J).
- this second embodiment (not shown in the figures), it is provided, instead of the step of preparing the temporary zone of the seabed to enable it to support the weight of the baskets filled with ballast counterweight, to deposit on the seabed a system of descent of the counterweight.
- the raising system can thus completely or partially replace the effect of the rising tide on the relative position of the basket relative to the bottom.
- the filling of the basket with ballast material can be done entirely or partially on the basket placed on the raising system.
- a complement of ballast material is made once the basket off the raising system.
- This lowering system of the counterweight comprises a wide base allowing the seabed to support the weight of the system and the empty basket of the counterweight of the floating support structure according to the invention. Once the empty basket is lowered and placed on the base, the steps of the installation method similarly to those described above in connection with Figures 7D to 7K.
- This variant embodiment may be preferred because it has the advantage of being free of the tide.
- FIGS. 8A to 8H a third embodiment of the method of installation according to the invention of an offshore wind turbine provided with a floating support structure as described above will be described.
- This variant embodiment is particularly advantageous for the dynamic behavior of the counterweight during the descent by binding the basket thereof to the float by means of several catenary chains, which makes it possible to decouple the movements of the one and the other. In addition, no preparation of the sea floor is required.
- a first tug 300 is used to tow off the float 12 of the floating support structure on which the mast of a wind turbine 2 has previously been mounted.
- the empty basket 32 of the counterweight the floating support structure is independently towed by a second tug 302.
- the counterweight basket may be provided with temporary buoys 304. It will also be noted that the two tugs 300, 302 are each equipped with a dynamic positioning system.
- the tugs 300, 302 maneuver to bring the float 12 of the basket 32 to allow the establishment of connections between these two elements ( Figure 8B).
- ballast links 36 connecting the basket 32 to each end of the tubes of the main structure of the float.
- This operation can be performed using a dynamic positioning boat 306.
- weighting chains 308 are also connected between different points of the basket 32 and the main structure of the float 12. These weighting chains are, for example, three in number.
- other restraining links can be connected between the basket and the float to limit the distance of the float relative to the basket.
- the basket 32 of the counterweight is moved away from the float 12 and then gradually immersed by reducing the buoyancy of the temporary buoys 304 or by adding weight to the basket (FIG. 8E).
- the immersion of the basket is continued to a first equilibrium position under the float (FIG. 8F).
- Basket 32 of the counterweight is further lowered by continuously reducing or by palliating the buoyancy of temporary buoys (or by adding ballast). It will be noted that the descent of the basket results in a reduction of the catenary of the ballast chains 308 under the basket and therefore the weight that must be compensated for by floating. It is envisaged a process in which the descent of the basket would automatically cause the lowering of its flotation and also a decrease of the ballast with an offset such that the speed of descent of the basket would be sufficiently low.
- the descent of the basket ends at the moment when the ballast links 36 are stretched (FIG. 8G). If necessary, it can be envisaged that the descent will automatically stop at desired depths (for example, slightly before the ballast links are tense to ensure that their configuration is acceptable) by ensuring that the loss of ballast is caught up by the loss of flotation to the desired depth.
- the basket 32 of the counterweight is filled with the ballast material 34, for example from a ballast boat 310 discharging the ballast material into the basket using a gutter or filling tube 312 (FIG. 8H).
- ballast chains 308 may be used to serve to carry out, if necessary, an anchoring system for the floating support structure.
- FIGS. 9A to 9C there will be described a fourth embodiment of the installation method according to the invention of an offshore wind turbine provided with a floating support structure as described above.
- the basket 32 is then lowered by a lifting system 402 installed at the platform of the wind turbine 2 until the ballast links are taut (Figure 9B).
- the float 12 connected to the counterweight is then towed to the area of implantation of the wind turbine and the basket 32 can then be filled with ballast material from a ballast boat 404 as previously described (this is ie by means of a tube 406 connecting the basket to the ballast boat - see Figure 9C).
- FIGS. 10A to 10D there will now be described a fifth embodiment of the installation method according to the invention of an offshore wind turbine provided with a floating support structure as defined above.
- the method comprises in a first step illustrated in FIG. 10A, the connection of ballast links 36 and weighting chains 500 between the basket 32 of the counterweight and the float 12. Once this operation has been performed, the float connected to the counterweight is towed at sea using a tug 502 to the area where the wind turbine is installed ( Figure 10B).
- the basket is immersed by ballasting in a progressive manner and the position of the basket is controlled by the catenary effect of the weighting chains to descend into a position of equilibrium under the float (Figure 10C).
- the basket 32 is then lowered below the float until the ballast links 36 are stretched, then filled with a ballast material to immerse the float ( Figure 10D).
- the float connected to the counterweight is towed to the area where the wind turbine is installed.
- the method comprises, in a first step illustrated in FIG. 11A, the sea transport by a tug 600 of the basket 32 of the counterweight removably positioned inside a submersible floating support structure 602. to the area where the wind turbine is installed.
- the basket 32 of the counterweight is pre-filled with ballast material and the submersible floating support structure 602 is filled with air at atmospheric pressure prior to departure in order to have the buoyancy necessary to maintain the floatation on board. counterweight basket.
- ballast chain system 604. hooked to the submersible floating support structure until reaching the desired depth.
- the ballast chains 604 have a predefined linear weight and are hooked to the submersible floating support structure with the aid of a second tug 600 '.
- Anchors 606 may be hooked to the ballast chains 604 to stabilize the counterweight basket (Fig. 11C).
- the wind turbine with its float 12 is then towed to the implantation zone of the wind turbine and positioned vertically of the counterweight basket 32 (FIG. 11D).
- the ballast links 36 previously connected to the float 12 are then lowered and connected one by one to the counterweight basket 32 by means for example of a remotely operated underwater vehicle 108 (FIG. 11E).
- the submersible floating support structure 602 is progressively filled with water (replacing the air) to lose buoyancy. During this filling, she down with the counterweight basket until the ballast links 36 come into tension. The descent of the basket is then stopped and the weight of the basket is progressively transferred to the float 12 of the wind turbine which sees the ballast links 36 stretching under the weight of the basket of the counterweight (FIG. 11F).
- the submersible floating support structure 602 When the entire weight of the basket is transferred to the float of the wind turbine, the submersible floating support structure 602 continues its descent to completely disengage the basket 32 counterweight. When it is filled with water, it is then above the seabed at a distance of a few meters under the basket, the ballast chains 604 ensuring its maintenance in this position. The wind turbine and its counterweight can then be towed by the tug 600 to their area of implantation.
- the counterweight basket is only partially partially filled with ballast material. After the wind turbine and its counterweight have been towed to the settlement area, a vessel carrying the remaining ballast material is positioned around the wind turbine and fills the counterbalance basket with flexible piping. until the wind turbine reaches the required draft.
- the counterweight basket is provided with ballast compartments. air.
- This basket is previously poured into the port and the float of the wind turbine is positioned vertically to the basket to connect the ballast links by divers.
- Other temporary links shorter (about 5 meters) are connected between the float and the basket.
- the basket is then "déballasté" in order to stick to the float of the wind turbine.
- the whole is towed to a sheltered water site about 20m deep water where the basket is ballasted until it becomes heavy and is resumed by the temporary links.
- the assembly is then towed to the location of the wind turbine where the wind turbine is moored.
- the temporary links are disconnected and the basket descends into the water column until it is resumed in tension by the ballast links.
- a vessel carrying the remainder of the ballast material is positioned around the wind turbine and fills the counterbalance basket with flexible piping until the turbine reaches the draft. required.
- this seventh embodiment can be implemented with a counterweight basket that is previously completely or only partially filled with ballast material.
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- Engineering & Computer Science (AREA)
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- Sustainable Development (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Energy (AREA)
- General Engineering & Computer Science (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
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Abstract
Description
Claims
Priority Applications (15)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP21162733.6A EP3854670B1 (fr) | 2017-11-29 | 2018-11-27 | Procédé d'installation d'une éolienne offshore munie d'une structure de support flottant |
| EP21162736.9A EP3854671B1 (fr) | 2017-11-29 | 2018-11-27 | Procédé d'installation d'une éolienne offshore munie d'une structure de support flottant |
| ES18827192T ES2929103T3 (es) | 2017-11-29 | 2018-11-27 | Estructura de soporte flotante para aerogenerador offshore y procedimiento de instalación de un aerogenerador provisto de dicha estructura de soporte |
| EP21162740.1A EP3854672B1 (fr) | 2017-11-29 | 2018-11-27 | Procédé d'installation d'une éolienne offshore munie d'une structure de support flottant |
| EP21162744.3A EP3854673B1 (fr) | 2017-11-29 | 2018-11-27 | Procédé d'installation d'une éolienne offshore munie d'une structure de support flottant |
| KR1020207013413A KR102317990B1 (ko) | 2017-11-29 | 2018-11-27 | 해상 풍력 터빈 용 플로트 지지 구조물 및 이와 같은 지지 구조물을 구비한 풍력 터빈을 설치하기 위한 방법 |
| EP21162730.2A EP3854669B1 (fr) | 2017-11-29 | 2018-11-27 | Procédé d'installation d'une éolienne offshore munie d'une structure de support flottant |
| EP18827192.8A EP3717343B1 (fr) | 2017-11-29 | 2018-11-27 | Structure de support flottant pour éolienne offshore et procédé d'installation d'une éolienne munie d'une telle structure de support |
| BR112020008842-0A BR112020008842B1 (pt) | 2017-11-29 | 2018-11-27 | Estrutura de suporte flutuante para turbina de vento offshore e método para instalar uma turbina de vento provida com tal estrutura de suporte |
| MX2020005541A MX2020005541A (es) | 2017-11-29 | 2018-11-27 | Estructura de soporte flotante para turbina eolica en alta mar y metodo de instalacion de turbina eolica proporcionada con esta estructura de soporte. |
| AU2018376719A AU2018376719B2 (en) | 2017-11-29 | 2018-11-27 | Floating support structure for offshore wind turbine and method for installing a wind turbine provided with such a support structure |
| US16/767,474 US11383799B2 (en) | 2017-11-29 | 2018-12-27 | Floating support structure for offshore wind turbine and method for installing a wind turbine provided with such a support structure |
| ZA2020/02483A ZA202002483B (en) | 2017-11-29 | 2020-05-06 | Floating support structure for offshore wind turbine and method for installing a wind turbine provided with such a support structure |
| PH12020550612A PH12020550612A1 (en) | 2017-11-29 | 2020-05-11 | Floating support structure for offshore wind turbine and method for installing a wind turbine provided with such a support structure |
| SA520412052A SA520412052B1 (ar) | 2017-11-29 | 2020-05-27 | بنية حاملة عائمة من أجل توربين هوائي في البحر وطريقة تركيب توربين هوائي مزود بهذه البنية الحاملة |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1761342A FR3074138B1 (fr) | 2017-11-29 | 2017-11-29 | Structure de support flottant pour eolienne offshore et procede d'installation d'une eolienne munie d'une telle structure de support |
| FR1761342 | 2017-11-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2019106283A1 true WO2019106283A1 (fr) | 2019-06-06 |
Family
ID=61027965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2018/053006 Ceased WO2019106283A1 (fr) | 2017-11-29 | 2018-11-27 | Structure de support flottant pour éolienne offshore et procédé d'installation d'une éolienne munie d'une telle structure de support |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US11383799B2 (fr) |
| EP (6) | EP3854669B1 (fr) |
| KR (1) | KR102317990B1 (fr) |
| AU (1) | AU2018376719B2 (fr) |
| ES (4) | ES2993885T3 (fr) |
| FR (1) | FR3074138B1 (fr) |
| MX (1) | MX2020005541A (fr) |
| PH (1) | PH12020550612A1 (fr) |
| PT (2) | PT3717343T (fr) |
| SA (1) | SA520412052B1 (fr) |
| WO (1) | WO2019106283A1 (fr) |
| ZA (1) | ZA202002483B (fr) |
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-
2017
- 2017-11-29 FR FR1761342A patent/FR3074138B1/fr active Active
-
2018
- 2018-11-27 PT PT188271928T patent/PT3717343T/pt unknown
- 2018-11-27 EP EP21162730.2A patent/EP3854669B1/fr active Active
- 2018-11-27 EP EP21162733.6A patent/EP3854670B1/fr active Active
- 2018-11-27 ES ES21162736T patent/ES2993885T3/es active Active
- 2018-11-27 MX MX2020005541A patent/MX2020005541A/es unknown
- 2018-11-27 ES ES18827192T patent/ES2929103T3/es active Active
- 2018-11-27 KR KR1020207013413A patent/KR102317990B1/ko active Active
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| DE102019122110A1 (de) * | 2019-08-16 | 2021-02-18 | EnBW Energie Baden-Württemberg AG | Schwimmende Windenergieanlage mit integriertem Umspannwerk |
| WO2021032422A1 (fr) | 2019-08-16 | 2021-02-25 | EnBW Energie Baden-Württemberg AG | Éolienne flottante comprenant une sous-station électrique intégrée |
| US12173686B2 (en) | 2019-08-16 | 2024-12-24 | EnBW Energie Baden-Württemberg AG | Floating wind turbine comprising an integrated electrical substation |
| NO20200815A1 (en) * | 2019-09-25 | 2021-03-26 | Clovers As | Floating Wind Turbine Platform |
| NO345641B1 (en) * | 2019-09-25 | 2021-05-25 | Clovers As | Floating Wind Turbine Platform |
| US12187391B2 (en) | 2019-09-25 | 2025-01-07 | Clovers As | Floating metal platform |
| KR102144423B1 (ko) * | 2020-03-11 | 2020-08-12 | (주)삼원밀레니어 | 반잠수식 풍력발전기 및 이의 설치 및 해체 방법 |
| EP4136021A4 (fr) * | 2020-04-16 | 2024-03-27 | University of Maine System Board of Trustees | Procédé d'assemblage et de déploiement d'une plateforme flottante d'éolienne en mer |
| WO2021211121A1 (fr) | 2020-04-16 | 2021-10-21 | University Of Maine System Board Of Trustees | Procédé d'assemblage et de déploiement d'une plateforme flottante d'éolienne en mer |
| US12384500B2 (en) | 2020-04-16 | 2025-08-12 | University Of Maine System Board Of Trustees | Method of assembling and deploying a floating offshore wind turbine platform |
| FR3110540A1 (fr) | 2020-05-25 | 2021-11-26 | Saipem S.A. | Procédé et système de mise en tension d’un système hyperstatique |
| WO2021240089A1 (fr) | 2020-05-25 | 2021-12-02 | Saipem S.A. | Procédé et système de mise en tension d'un système hyperstatique |
| US12552499B2 (en) | 2020-05-25 | 2026-02-17 | Saipem S.A. | Method and system for tensioning a hyperstatic system |
| EP4161830A4 (fr) * | 2020-06-04 | 2024-07-17 | Stiesdal Offshore A/S | Positionnement d'une quille d'une structure flottante, notamment pour une éolienne |
| US12168499B2 (en) | 2020-06-04 | 2024-12-17 | Stiesdal Offshore A/S | Positioning of a keel of a floating structure, especially for a wind turbine |
| JP7710467B2 (ja) | 2020-06-04 | 2025-07-18 | スティーズダル オフショアー アクティーゼルスカブ | 浮遊構造体のキール、特に風力タービン用キールの位置決め方法 |
| JP2023528474A (ja) * | 2020-06-04 | 2023-07-04 | スティーズダル オフショアー アクティーゼルスカブ | 浮遊構造体のキール、特に風力タービン用キールの位置決め方法 |
| IT202000015913A1 (it) | 2020-07-01 | 2022-01-01 | Saipem Spa | Gruppo offshore, sistema e metodo di produzione di idrocarburi comprendente tale gruppo offshore |
| US11988075B2 (en) | 2020-07-01 | 2024-05-21 | Saipem S.P.A. | Offshore assembly and oil and gas production system and method comprising such offshore assembly |
| WO2022123130A1 (fr) | 2020-12-10 | 2022-06-16 | Bourbon Offshore Gaia | Procédé d'assemblage d'un parc éolien offshore flottant |
| FR3117553A1 (fr) * | 2020-12-10 | 2022-06-17 | Bourbon Offshore Gaia | Procédé d’assemblage d’un parc éolien offshore flottant |
| US12116978B2 (en) | 2020-12-10 | 2024-10-15 | Bourbon Offshore Gaia | Method for assembling a floating offshore wind farm |
| JP2023552909A (ja) * | 2020-12-10 | 2023-12-19 | ブルボン オフショア ガイア | 浮遊式洋上風力発電所の組立方法 |
| WO2024062177A1 (fr) | 2022-09-21 | 2024-03-28 | Saipem S.A. | Structure de support flottant à multiples colonnes centrales pour éolienne offshore et procédé d'assemblage d'une telle structure |
| FR3139794A1 (fr) | 2022-09-21 | 2024-03-22 | Saipem S.A. | Structure de support flottant à multiples colonnes centrales pour éolienne offshore et procédé d’assemblage d’une telle structure |
| FR3146305A1 (fr) | 2023-03-03 | 2024-09-06 | Saipem S.A. | Procédé de production en série de flotteurs pour éoliennes offshore |
| WO2024184600A1 (fr) | 2023-03-03 | 2024-09-12 | Saipem S.A. | Procédé de production en série de flotteurs pour éoliennes offshore |
| FR3146456A1 (fr) | 2023-03-09 | 2024-09-13 | Saipem S.A. | Contrepoids pour flotteur semi-submersible d’éolienne offshore et son procédé d’installation |
| WO2024184604A1 (fr) | 2023-03-09 | 2024-09-12 | Saipem S.A. | Contrepoids pour flotteur semi-submersible d'éolienne offshore et son procédé d'installation |
| EP4549696A1 (fr) | 2023-11-03 | 2025-05-07 | Saipem S.p.A. | Système de production d'hydrocarbures en mer |
| WO2025093931A1 (fr) | 2023-11-03 | 2025-05-08 | Saipem S.P.A. | Système de production d'hydrocarbures en mer |
| FR3155805A1 (fr) | 2023-11-27 | 2025-05-30 | Saipem S.A. | Procédé de positionnement et d’alignement de blocs de flotteur semi-submersible pour éolienne offshore |
| WO2025114301A1 (fr) | 2023-11-27 | 2025-06-05 | Saipem S.A. | Procédé de positionnement et d'alignement de méga-blocs de flotteur semi-submersible pour éolienne offshore |
| WO2025149356A1 (fr) | 2024-01-11 | 2025-07-17 | Saipem S.A. | Procédé de raccordement de deux blocs d'une structure offshore |
| FR3158305A1 (fr) | 2024-01-11 | 2025-07-18 | Saipem S.A. | Procédé de raccordement de deux blocs d’une structure offshore |
| FR3158700A1 (fr) | 2024-01-30 | 2025-08-01 | Saipem S.A. | Porteur mutualisé pour l’installation d’outils destinés à la production en série de structures métalliques, notamment de fondations fixes ou flottantes pour éoliennes offshore |
| WO2025162942A1 (fr) | 2024-01-30 | 2025-08-07 | Saipem S.A. | Porteur mutualisé pour l'installation d'outils destinés à la production en série de structures métalliques, notamment de fondations fixes ou flottantes pour éoliennes offshore |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3854670A1 (fr) | 2021-07-28 |
| EP3717343B1 (fr) | 2022-08-10 |
| PT3854669T (pt) | 2023-12-05 |
| ES2929103T3 (es) | 2022-11-24 |
| EP3854673A1 (fr) | 2021-07-28 |
| PH12020550612A1 (en) | 2021-02-22 |
| ES2993885T3 (en) | 2025-01-13 |
| US20200391834A1 (en) | 2020-12-17 |
| FR3074138A1 (fr) | 2019-05-31 |
| BR112020008842A2 (pt) | 2020-10-20 |
| EP3854670B1 (fr) | 2023-10-11 |
| AU2018376719B2 (en) | 2021-05-06 |
| EP3717343A1 (fr) | 2020-10-07 |
| EP3854669A1 (fr) | 2021-07-28 |
| EP3854673B1 (fr) | 2023-10-11 |
| EP3854671B1 (fr) | 2024-08-14 |
| ES2965262T3 (es) | 2024-04-11 |
| US11383799B2 (en) | 2022-07-12 |
| EP3854671A1 (fr) | 2021-07-28 |
| EP3854669B1 (fr) | 2023-10-11 |
| ZA202002483B (en) | 2022-09-28 |
| MX2020005541A (es) | 2020-08-20 |
| SA520412052B1 (ar) | 2022-11-03 |
| AU2018376719A1 (en) | 2020-05-14 |
| EP3854672B1 (fr) | 2023-10-11 |
| PT3717343T (pt) | 2022-10-28 |
| KR102317990B1 (ko) | 2021-10-28 |
| KR20200060766A (ko) | 2020-06-01 |
| ES2965223T3 (es) | 2024-04-11 |
| FR3074138B1 (fr) | 2021-08-27 |
| EP3854672A1 (fr) | 2021-07-28 |
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