WO2014187977A1 - Fondation flottante à grand tirant d'eau pour éolienne à coque composée de plusieurs éléments et à section ballast compartimentée et procédé d'installation d'une unité pivotante et auto-dépliable - Google Patents

Fondation flottante à grand tirant d'eau pour éolienne à coque composée de plusieurs éléments et à section ballast compartimentée et procédé d'installation d'une unité pivotante et auto-dépliable Download PDF

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Publication number
WO2014187977A1
WO2014187977A1 PCT/EP2014/060706 EP2014060706W WO2014187977A1 WO 2014187977 A1 WO2014187977 A1 WO 2014187977A1 EP 2014060706 W EP2014060706 W EP 2014060706W WO 2014187977 A1 WO2014187977 A1 WO 2014187977A1
Authority
WO
WIPO (PCT)
Prior art keywords
arrangement
wind turbine
offshore wind
compartments
ballast
Prior art date
Application number
PCT/EP2014/060706
Other languages
English (en)
Inventor
Matteo Elia STAGNARO
Original Assignee
Offshore Engineering Services Llc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Offshore Engineering Services Llc filed Critical Offshore Engineering Services Llc
Publication of WO2014187977A1 publication Critical patent/WO2014187977A1/fr

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Classifications

    • 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
    • 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 
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B63B21/50—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers
    • B63B2021/505—Methods for installation or mooring of floating offshore platforms on site
    • 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
    • B63B2035/442—Spar-type semi-submersible structures, i.e. shaped as single slender, e.g. substantially cylindrical or trussed vertical bodies
    • 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
    • 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
    • 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 deep-draft buoy or spar buoy concept is a well-known solution in the oil & gas industry and also known for supporting offshore wind turbines. Its main characteristic is to remain normally vertical with light oscillations.
  • the physical principle is the self-righting effect resulting from the distance between the center of gravity, close to the deep-draft ballast compartment placed at the lowest end of the buoy, and the center of buoyancy which, due to the buoyancy concentrated in the hull at the upper end of the buoy, is close to the sea surface.
  • floating foundations based on such principle can be damaged by collisions and cannot be repaired unless brought back to shore with high costs.
  • the invention claimed here solves this problem.
  • the spar buoy made of a single buoyant element with no possibility of replacement of damaged elements, normally transported unballasted or only partially ballasted, which is installed at site first by adding water and/or solid ballast, with expensive crane vessels
  • ballast compartment configuration doesn't permit to transport the complete system of support structure, tower, turbine and rotor already ballasted, instead the normal procedure is to install first the floating support structure at sea and subsequently to erect the wind turbine upon the support structure.
  • the invention solves in an economic way, the maintenance, launching, transport and Installation problems of offshore wind energy devices in certain water depths areas, typically more than 8o meters.
  • the invention allows for a safe, simple and economic installation process and maintenance in operation with a simple and economic self-erecting process in one shot without any heavy crane equipment.
  • the present invention relates to a deep-draft floating foundation for wind turbine units which, for its characteristics, solves the various problems deriving from today's state of the art having a clustered hull made of several buoyant elements which are easily and economically replaceable an spot, making the repair an site possible after damage due to collision or corrosion, while protecting the structural central spar from any risk of collision.
  • the compartmented ballast section is dimensioned to have enough internal volume to be buoyant when the compartments are empty, allowing for easy and economical transport in horizontal or semi-horizontal position, even with tower and turbine already installed at the construction site.
  • the compartments are flooded at the installation site to let the structure assume its upright working position, but they can be emptied to remove the unit at decommissioning or for major overhaul, to transport it back to shore in the same configuration used for its transport for installation.
  • Another aspect of the invention solves in an economic way, the launching, transport and installation problems of offshore wind energy devices in certain water depths areas, typically more than 80 meters. This aspect of the invention allows to construct an offshore wind energy system, i.e.
  • the support structure and the wind turbine on top of the support structure in one shot on a slipway or on a quay and to launch the entire system into the water with or without aid of submersible barges according to the characteristics of the construction site, subsequently to tow it out with simple tug boats and to install it at the site without the need of any heavy, expensive crane equipment as it is the state of the art today.
  • This aspect of the present invention relates to a pivoting submersible, self- erecting floating offshore wind turbine unit, launched horizontally completely assembled and able to be installed by itself without a crane vessel.
  • this aspect solves the problem by creating one system to be manufactured, launched, transported and installed without any costly heavy crane equipment, using appropriate ballasting and de-ballasting of parts of the system.
  • a first embodiment of the invention provides an arrangement of a wind turbine and a floating support structure, comprising a rotor, a turbine, a tower, a central buoyant element providing buoyancy a spacer, a bottom ballast compartment further being divided into smaller compartments and having an internal volume to be buoyant, wherein the turbine and the rotor are arranged on top of the tower, wherein the tower is arranged on top of the central buoyant element and wherein the spacer is arranged in between the bottom ballast compartment and the central buoyant compartment and wherein the bottom ballast compartment is adapted to be flooded, thereby moving the arrangement into a vertical position and wherein the bottom ballast compartment is further adapted to be emptied, thereby moving the arrangement into a horizontal or semi-horizontal position.
  • the compartments of the bottom ballast compartment are equipped with valves.
  • the bottom compartments of the ballast compartment are at least partially filled with solid ballast.
  • any of the preceding embodiments further comprising mooring lines connected to attachment points of the arrangement, wherein the mooring lines are adapted to be secured to the sea bottom.
  • the central buoyant element is made of steel, concrete or a composite material.
  • the bottom ballast compartment is made of steel or concrete.
  • a clearance between the sea level and the turbine can be increased with temporary floaters.
  • the turbine is a two-bladed turbine.
  • the turbine in any of the preceding embodiments, is a three-bladed turbine.
  • the lowest compartments of the bottom ballast section are filled with solid ballast.
  • the spacer creates an appropriate distance between the central buoyant element and the bottom ballast section.
  • each external buoyant element has a volume lower than half the reserve of the buoyancy of the central buoyant element.
  • the external buoyant elements are made of steel or a composite material. According to the sixteenth embodiment of the invention, in any of the preceding embodiments, further comprising inspection hatches.
  • a seventeenth embodiment of the invention provides a method for a self-erecting pivoting installation for a floating offshore wind turbine unit, comprising the steps of constructing the offshore wind turbine unit on a quay, launching, the offshore wind turbine unit in a horizontal position into the sea, wherein smaller compartments of a bottom part of the offshore wind turbine unit are mostly empty with solid ballast added to some compartments for obtaining an inclined position in the water, transporting the offshore wind turbine unit to an installation site, flooding at least some of the empty compartments of the bottom part of the offshore wind turbine unit, thus moving the offshore wind turbine unit into a vertical position and securing the offshore wind turbine unit with mooring lines.
  • a floater is attached to the offshore wind turbine unit.
  • the step of launching the offshore wind turbine unit is performed directly through a slipway.
  • the step of launching is performed by attaching skids to the offshore wind turbine unit and by moving the skid onto a semi-submergible barge and by moving the skid onto a smaller submergible barge.
  • the semi-submergible barge is sunk and removed together with the skid and second the smaller submergible barge is sunk and removed.
  • Fig. l shows a front view of a wind turbine installed onto a floating support structure according to an embodiment of the invention.
  • Fig. 2 shows a side view of the wind turbine according to an embodiment of the invention.
  • Fig. 3 is an isometric view of the wind turbine, which represents the distribution of the hull elements and of the ballast compartment according to an embodiment of the invention.
  • Fig. 4 shows the transport phase of the wind turbine with the unit inclined on the water level according to an embodiment of the invention.
  • Figs. 5 to 21 show a self-erecting pivoting installation process of a wind turbine according to an embodiment of the invention.
  • Figs. 22 to 30 show another example of the self-erecting pivoting installation process of a wind turbine according to an embodiment of the invention.
  • the deep-draft buoy as shown in Fig. 1, is comprised of the following elements:
  • the central buoyant element 1 of the hull is surrounded by other elements 2, linked to it by reversible mechanical constraints, and crosses the sea level 3.
  • the spacer 4 has the function to create an appropriate distance between the hull and the bottom ballast compartment 5.
  • the bottom ballast section 5 is filled in its lowest compartments with solid ballast 6 as visible in the cross section.
  • Fig. l shows the front view of the wind turbine installed onto the floating support structure.
  • a two bladed turbine as shown is the best for being used with this invention, because its linear rotor can be oriented with the blades axis parallel to the tower axis during transportation thus minimizing the risk of side overturning or touching the water with the blade tips as well as minimizing the space necessary during the launching operations.
  • Fig. 2 shows a side view of the unit
  • Fig. 3 is an isometric view, which represents the distribution of the hull elements and of the ballast compartment.
  • Fig. 4 shows the transport phase with the unit inclined on the water level 3.
  • the clearance between the latter and the sea can be increased by temporary floaters placed under the central buoyant element 1 close to the junction with the tower 7.
  • the hull is composed of a central buoyant element 1, made of steel, concrete or composite materials which supports the turbine tower 7 and is linked to the lower ballast 5 through the spacer 4. This central element crosses the water plane 3 and has enough reserve of buoyancy.
  • buoyant elements 2 made of steel or composite materials, are arranged around the central element 1, each having a volume lower than half the reserve of buoyancy of the latter, corresponding to the section normally above the water plane. In case of damage of one or two elements, the buoyancy is granted by the other elements and the damaged elements can be replaced without moving the structure back to shore.
  • the external buoyant elements 2, arranged around the central element 1 of the spar buoy are bolted or generally mechanically linked to the central element to permit their easy removal and replacement. Inspection hatches are provided to check the integrity of the structure from inside and eventually call for
  • the replacement of an external buoyant element 2 can be done with the assistance of a relatively small vessel with the aid of a ROV or divers to unscrew and remove the damaged element, to replace it and to reattach it.
  • the time for the Operation is much shorter that that necessary to tow the unit back to shore for repair, thus reducing also the loss of production.
  • the bottom ballast section 5 is made of a shell of steel or concrete that is partially filled already at launch with solid ballast 6 necessary in Operation and has empty chambers which provide the necessary buoyancy during transport and
  • the bottom ballast section 5 is divided in compartments, which are equipped with valves to be opened in launching phase and in installation phase for ballasting during the self- installing process at site.
  • the buoyance section works as a hinge around which the whole system turns.
  • the mono-tower 12 with its upper extension 7 is a support structure of the offshore wind turbine made of the nacelle 8 and the rotor 9.
  • the pivoting submersible self-erecting wind turbine floating mono-tower concept allows the self-installation of the entire system at the offshore site as well as its launching and transport by only towing to a site by a tug boat without any heavy crane equipment.
  • the mono-tower 12 is steel or a hybrid structure having three or more parts.
  • the bottom section 5 of the mono-tower is made of steel, concrete or other material and has internal compartments, which are equipped with valves to be opened for ballasting by water some in the launching phase and others in the installation phase.
  • the mono-tower upper part 1 is a lighter substructure, made of steel or composite materials, which supports the nacelle since the launching phase and, in case of a two-bladed turbine, also the rotor, as in the case of a two-bladed rotor there is no issue with the width of the entire structure during launching.
  • An intermediate section 4 - which can be tubular, with free water entrance to prevent buckling or latticed - links the bottom and the upper part connecting the upper and the lower part in order to secure correct operating conditions for the wind turbine.
  • the upper part 1 generates the necessary buoyancy for launching, for a floating transport of the system and for operation after installation.
  • the bottom compartments of the bottom section 5 are filled prior to or during the launching phase with solid ballast to provide the necessary final operational weight. This section is therefore much heavier than the other parts of the unit.
  • the mono-tower 12 with its extension 7 is a support structure of the offshore wind turbine made of the nacelle 8 and the rotor 9.
  • the pivoting submersible self-erecting floating wind turbine mono-tower concept allows the self-installation of the completely assembled system at the offshore site as well as its launching and transport by easy towing without heavy crane equipment.
  • the mono-tower which can be a hybrid concrete and steel structure, is made of more sections, properly divided in order to allow for a guided process of ballasting and lowering.
  • the bottom section 5 of the floating mono-tower 12 is equipped with
  • compartments which are equipped with valves to be opened some in the launching phase and others in the installation phase for letting water in for ballasting.
  • the upper part 1 is a lighter substructure, made of steel or composite materials, which supports the mono-tower upper extension 7, the nacelle 8 and the rotor 9 and provides the necessary buoyancy for launching, for the floating transport of the system and for the normal operation after installation.
  • An intermediate section 4 tubular or latticed, links the bottom and upper sections.
  • the bottom compartments of the bottom section 5 are filled prior to or during the launching phase with solid ballast to provide the necessary final operational weight.
  • the Invention needs a quay for the construction. Where a slipway is available with sufficient water depth, launching can be done directly, without floatation aids. In other cases launching shall be done with the aid of semi- submergible barges 15 and 18 ( Figures from 6 to 17) which take the complete mono-tower 12 with nacelle 8 and rotor 9 in horizontal position and bring them to deeper sea where the barges are sunk and released, leaving the unit ready to be towed.
  • the system is made of a mono-tower 12, which is ballasted properly in compartments so that the lower section 5 of the mono-tower/turbine system enters into the water.
  • the upper section 1 secures enough buoyancy for the Floating transport of the inclined system to the site.
  • a floater with the role to sustain the nacelle 8 at due distance from the sea 3 is necessary for stability and safety.
  • Ballast is added in the bottom section 5 in order to put the system in a vertical position.
  • the section 1 of the figures covers the role of a hinge around which the structure will turn around into the vertical position.
  • the "hinge" lowers to increase the displacement in water in order to compensate the weight of the added ballast, reaching the final operational draft of the floating support structure.
  • the current systems are made of two pieces, which are installed at the site in two different steps with the help of heavy and expensive crane equipment as if the process would take place on land.
  • the Invention uses the water environment in order to substitute the lifting operations by submersing operations without the need of heavy crane equipment and in one shot.
  • the lower part of the system is configured in a way to create a hinge around which the system will be upraised floating into a vertical position in a stable way.
  • the launching can be done directly through a slipway.
  • a submersible barge 15 is approached to the quay 11 (Fig. 6) and settled onto the foundations 16 and 17 provided at the bottom of the sea 3 to give a stable support (Fig. 7).
  • the unit 12 is moved until the skid 13 is centered onto the barge 15 and secured (Fig. 8).
  • the barge 15 is de-ballasted in order to float, and the unit 12 is pushed out (Fig. 9) while a smaller barge 16 is approached to take the skid 13 (Fig. 10 and Fig. 11).
  • the unit 12, sustained by the barges 15 and 16, is towed to deeper sea (Fig. 12 and 13) where the barge 15 is sunk first and removed along with the skid 13 (Fig. 14 and Fig. 15), then the barge 18 is also sunk (Fig. 16) leaving the floater 14 to support the mono-tower extension 7 so that the nacelle 8 has the necessary clearance from the sea 3 during transport (Fig. 17).
  • the compartments of the bottom section 5 are not occupied by the solid ballast and are initially empty to provide maximum buoyancy. Some of them may be filled with water ballast to provide stability and correct trim.
  • the configuration and the size of the mono-tower 12 is such that, by keeping most of the compartments of the bottom part 5 empty and with all the solid ballast added, at launching, the system, with the nacelle 8 on top (along with the rotor 9 in the case of a two bladed turbine), can reach a stable inclined position in water with its top sufficiently above the sea level and the bottom section 5 totally or almost totally in the water.
  • the two blades are arranged along and above the mono-tower 12.
  • An anti-rolling and stabilizing floater 14 secures that the blades keep the position above the mono-tower during the transport.
  • By adding properly ballast in the compartments it is possible to create an anti-rolling effect, which adds to the action of the floater (Fig. 18).
  • the transport shall be done by towing in the most appropriate direction. At site a simple support vessel will guide the operations.
  • the buoyant section 1 covers the role of a hinge around which the entire structure will turn around into a vertical position, due to the weight concentrated in the bottom part 5, while the hinge lowers to increase the displacement in water in order to compensate the weight of the added ballast (Fig. 20).
  • the configuration and size of the mono-tower is such that the total system gets a stable vertical position at the desired draft and with the gravity center largely below the buoyancy center.
  • the installed unit 12 is finally secured by mooring lines 19 (Fig. 21).
  • FIG. 22 A still further aspect of the invention, which will be describe with regard to Figs. 22 to 30, requires the availability of a quay 11 (Fig.22) and two onshore cranes 20, 2i(Fig. 23).
  • the two onshore cranes 20, 21 launch the upper part 1 on to the sea 3 where it remains buoyant (Fig.23).
  • the external buoyant elements 2 are moved by the cranes to be joined to the upper part i(Fig.24).
  • Solid ballast 6 is added into the bottom section 5 (Fig.25).
  • a barge 23 links the mono-tower 12 to the quay 11 (Fig 25).
  • a hinged support 22 is provisionally mounted onto the tower 9 (Fig 26).
  • the nacelle 10 is lowered onto the hinged support 22 by the cranes 20, 21
  • the nacelle 8 is handled by the crane 21 in order to fix the flanges between the nacelle 8 and the mono tower 7 (Fig.28).
  • the rotor 9 is moved by the cranes to be assembled onto the nacelle 8 (Fig. 29).
  • the barge 23 is removed thus the system is ready to be towed to the site (Fig. 30).

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Sustainable Development (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Energy (AREA)
  • Ocean & Marine Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Architecture (AREA)
  • Wind Motors (AREA)

Abstract

La présente invention concerne une fondation flottante à grand tirant d'eau pour éolienne à coque composée de plusieurs éléments et à section ballast compartimentée et un procédé d'installation d'une unité pivotante et auto-dépliable, qui permet d'assurer une construction sur terre de systèmes à énergie éolienne à utiliser en mer, et de transporter par la suite à l'horizontale lesdits systèmes à énergie éolienne à utiliser en mer entièrement assemblés sur le site d'installation. Sur le site d'installation, le système à énergie éolienne à utiliser en mer est érigé par ballastage d'un compartiment de ballast à fond compartimenté.
PCT/EP2014/060706 2013-05-23 2014-05-23 Fondation flottante à grand tirant d'eau pour éolienne à coque composée de plusieurs éléments et à section ballast compartimentée et procédé d'installation d'une unité pivotante et auto-dépliable WO2014187977A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201361826866P 2013-05-23 2013-05-23
US61/826,866 2013-05-23
US201361830493P 2013-06-03 2013-06-03
US61/830,493 2013-06-03

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Cited By (11)

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NO20141362A1 (no) * 2014-11-13 2015-10-12 Windel As Innretning og fremgangsmåte for transport og oppstilling av flytende vindmøller
WO2017049376A1 (fr) * 2015-09-24 2017-03-30 DANTAS, Rodrigo Perazzo Azevedo Éolienne offshore, véhicule maritime pour son entretien et procédé pour sa fabrication et son installation
CN107792307A (zh) * 2017-11-24 2018-03-13 惠生（南通）重工有限公司 一种便于安装的浮式风电塔
WO2018151594A1 (fr) 2017-02-14 2018-08-23 Marine Innovators B.V. Structure d'installation d'éolienne en mer
CN111252205A (zh) * 2020-03-25 2020-06-09 上海惠生海洋工程有限公司 一种浅水自安装平台及安装方法
WO2020165892A1 (fr) * 2019-02-12 2020-08-20 University Of Malta Berceau de transport d'éolienne et son utilisation pour l'installation d'un ensemble éolienne offshore flottante
CN114585809A (zh) * 2020-09-16 2022-06-03 艾斯E&T(工程与技术)公司 海上风力发电浮体的设置方法
WO2022210359A1 (fr) * 2021-03-29 2022-10-06 戸田建設株式会社 Procédé de construction pour générateur d'énergie éolienne en mer de type à longeron
NO20220736A1 (en) * 2022-06-28 2023-12-29 Subsea 7 Norway As Spar-type offshore wind turbine assembly and methods relating thereto
WO2024003197A1 (fr) 2022-06-28 2024-01-04 Subsea 7 Norway As Ensemble, transport et installation d'éoliennes flottantes
CN109238863B (zh) * 2018-09-28 2024-05-24 中船黄埔文冲船舶有限公司 一种用于风电安装船的坐底结构及坐底超压载试验方法

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NO20141362A1 (no) * 2014-11-13 2015-10-12 Windel As Innretning og fremgangsmåte for transport og oppstilling av flytende vindmøller
WO2017049376A1 (fr) * 2015-09-24 2017-03-30 DANTAS, Rodrigo Perazzo Azevedo Éolienne offshore, véhicule maritime pour son entretien et procédé pour sa fabrication et son installation
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CN107792307A (zh) * 2017-11-24 2018-03-13 惠生（南通）重工有限公司 一种便于安装的浮式风电塔
WO2019100490A1 (fr) * 2017-11-24 2019-05-31 惠生（南通）重工有限公司 Tour éolienne flottante pratique à installer
CN107792307B (zh) * 2017-11-24 2023-08-22 惠生（南通）重工有限公司 一种便于安装的浮式风电塔
CN109238863B (zh) * 2018-09-28 2024-05-24 中船黄埔文冲船舶有限公司 一种用于风电安装船的坐底结构及坐底超压载试验方法
WO2020165892A1 (fr) * 2019-02-12 2020-08-20 University Of Malta Berceau de transport d'éolienne et son utilisation pour l'installation d'un ensemble éolienne offshore flottante
CN111252205B (zh) * 2020-03-25 2024-05-17 上海惠生海洋工程有限公司 一种浅水自安装平台及安装方法
CN111252205A (zh) * 2020-03-25 2020-06-09 上海惠生海洋工程有限公司 一种浅水自安装平台及安装方法
CN114585809A (zh) * 2020-09-16 2022-06-03 艾斯E&T(工程与技术)公司 海上风力发电浮体的设置方法
EP4006338A4 (fr) * 2020-09-16 2023-01-25 Ace E&T (Engineering & Technology) Procédé d'installation d'un corps flottant en mer pour la production d'énergie éolienne
WO2022210359A1 (fr) * 2021-03-29 2022-10-06 戸田建設株式会社 Procédé de construction pour générateur d'énergie éolienne en mer de type à longeron
GB2620371A (en) * 2022-06-28 2024-01-10 Subsea 7 Norway As Assembly, transportation and installation of floating wind turbines
WO2024003197A1 (fr) 2022-06-28 2024-01-04 Subsea 7 Norway As Ensemble, transport et installation d'éoliennes flottantes
NO20220736A1 (en) * 2022-06-28 2023-12-29 Subsea 7 Norway As Spar-type offshore wind turbine assembly and methods relating thereto

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