WO2020221405A1 - Ferme éolienne flottante - Google Patents

Ferme éolienne flottante Download PDF

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Publication number
WO2020221405A1
WO2020221405A1 PCT/DK2020/050117 DK2020050117W WO2020221405A1 WO 2020221405 A1 WO2020221405 A1 WO 2020221405A1 DK 2020050117 W DK2020050117 W DK 2020050117W WO 2020221405 A1 WO2020221405 A1 WO 2020221405A1
Authority
WO
WIPO (PCT)
Prior art keywords
floating
power plant
wind power
elongated
elements
Prior art date
Application number
PCT/DK2020/050117
Other languages
English (en)
Inventor
Poul Henning FOLKMANN
Kim Folkmann
Ulrik FOLKMANN
Original Assignee
Ocean Wind Base Ivs
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 Ocean Wind Base Ivs filed Critical Ocean Wind Base Ivs
Publication of WO2020221405A1 publication Critical patent/WO2020221405A1/fr

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Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B22/00—Buoys
    • B63B22/04—Fixations or other anchoring arrangements
    • 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
    • B63B1/12—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
    • 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
    • B63B1/121—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls the hulls being interconnected rigidly comprising two hulls
    • B63B2001/123—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls the hulls being interconnected rigidly comprising two hulls interconnected by a plurality of beams, or the like members only
    • 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
    • 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 floating wind power plant comprises a platform with a flat face on which the wind turbine units are placed. This requires a large amount of mate rial to construct and is heavy. In turn, the size of the elongated floating elements providing the buoyancy for the floating wind power plant have to be increased as well, which further increases material consumption and weight.
  • Another drawback is that there is no mechanism to keep the anchored floating element from colliding with the support structure. Thus no protection against damage of the support structure or the anchored floating element is provided. Collision can in the worst case lead to sinking of the floating wind power plant.
  • a further drawback is that the floating wind power plant is cumbersome and expen sive to produce, install and maintain.
  • a further drawback is that the largest wind turbine units at the time of writing of DE 197 27 330 A1 where 1 MW. The construction is thus not intended for the large wind turbine units of up to 14 MW available today.
  • connection wires or chains have lengths ensuring that the anchored floating element is maintained in the position between the elongated floating elements
  • the connecting structure comprises a lattice structure in which the towers are used as lattice member and comprises lattice members extending obliquely in direction along the elongated floating elements and transversal to the direction of the elongated floating elements.
  • a lower weight of the floating wind power plant More specifi cally, an optimal combination of weight, buoyancy and stability is achieved.
  • high stability is achieved while at the same time the amount of material is minimised. This minimises the draught of the floating wind power plant, and reduces the amount of material necessary for construction of the floating wind power plant. This reduces the cost of production of the floating wind power plant.
  • using less material is also more sustainable for the environment.
  • the tower is reinforced. Lattice members con necting to the tower support the tower. Thus the tower is supported against vibrations in the nacelle.
  • the material of the floating wind power plant will be steel.
  • the elongated floating elements typically have a length between one to three times a height of the tower of the wind turbine unit.
  • the exact length is determined by multiple factors such as the weight of the wind tur bine units, wave pattern and wind distribution in an area where the floating wind pow er plant is used.
  • a distance between the elongated floating elements is determined by a length of the rotor blades and a necessary distance between the rotor blades of the wind turbine units.
  • elongated floating elements being substantially parallel it is understood that a di verging angle between the elongated floating elements is between -5 to 5 degrees, preferably -2 to 2 degrees.
  • the elongated floating elements are oriented horizontally. By that is understood that the elongated direction of the elongated floating elements is in a plane with the sea surface.
  • the wind turbine units convert kinetic energy of the wind into electrical energy.
  • the floating wind power plant is primarily intended for large wind turbine units of 6 megawatts and larger, preferably 8 megawatts.
  • the length of the support wires or chains is smaller than 80%, even more preferably smaller than 70%, and most preferable smaller than 60% of the distance between the elongated floating elements to which the wires are connected.
  • a floating wind power plant with elongated floating elements can be constructed us ing only approximately 50% of the material of a conventional floating design compris ing a support structure with vertical extension further into the seawater using a keel weight.
  • the floating wind power plant is peculiar in that it comprises a reinforcing structure in which the towers are used as lattice member and comprises lattice members extending in a plane of the elongated floating element and the tower placed on top of said elon gated floating element.
  • the technical effect achieved herewith is an increased strength of the floating wind power plant.
  • the lattice structure reinforces the structure. This is achieved in a way which reduces the total amount of material necessary for the floating wind power plant.
  • Using the tower as a lattice member in the structure both reinforces the tower and reduces the weight of the tower.
  • Lattice members connecting the tower and the elongated floating element reinforce the tower.
  • the tower itself can be produced with less material without compromising the strength of the construction.
  • the floating wind power plant is peculiar in that the towers are arranged at a central position along the length of the elongated floating elements.
  • the towers are arranged at a po sition where the buoyancy forces of the support structure are largest. Thus, the best balanced buoyancy is achieved.
  • the movements of the towers are smallest in the central position. Thus, the movement of the towers and therewith the motion- induced mechanical load on the wind turbine units are minimised. A lifetime of the wind turbine units is increased and less material can be used in the construction of the wind turbine unit.
  • the wind rudder can be a flat face oriented vertically and along the direction of the elongated floating elements.
  • the technical effect achieved is that the floating wind power plant adjusts itself to the direction of the wind. By adjusting itself to the direction of the wind it is understood that after adjustment, the wind direction is parallel to the elongated floating elements and that the wind blows from the side of the floating wind power plant where the an chored floating element is located.
  • the technical effect achieved is that the rotor plane in use always is transversal to the wind direction, which maximises the energy conversion of the wind turbine units.
  • the floating wind power plant is peculiar in that the elongated floating elements are pipes.
  • pipe By pipe is understood a tubular section or hollow cylinder.
  • the material of the pipes is usually steel.
  • the pipes can be filled with gas such as air.
  • the pipes may be filled with other gases such as carbon dioxide or nitrogen, which prevent rusting.
  • the pipes can be filled with a foam material. This prevents sinking in case of leakage of a pipe.
  • the pipes can be divided into watertight sections by watertight bulkheads. There can be doors between the sections for accessing each section.
  • a compartmentalisation which prevents sinking of the floating wind power plant in case of leakage of an elongated floating element.
  • the floating wind power plant is peculiar in that each of the elongated floating ele ments comprises two or more parallel elongated pipes, which parallel elongated pipes are interconnected by a floating element lattice structure.
  • the elongated floating element can comprise three parallel elongated pipes.
  • the three parallel elongated pipes can form the edges of a triangle.
  • the floating element lattice structure can comprise members which form triangles with the parallel elongated pipes.
  • the floating element lattice structure can be pyramidal or tetrahe dral.
  • the technical effect achieved is an increased strength and structural stability of the elongated floating elements.
  • the floating element lattice structure reinforces the elon gated floating element and makes it stiffer. A higher strength per weight than with a single pipe is achieved.
  • the floating wind power plant is peculiar in that it comprises a bottom anchor located at the bottom of a seabed.
  • the bottom anchor is connected to an anchor chain or wire.
  • a buoyancy device exerting an upward- directed buoyancy force on the anchor chain or wire, preventing the anchor chain or wire from falling to the seabed.
  • the buoyancy device in use is located in an upper sea layer below the sea surface.
  • upper sea layer it is understood a sea layer in a depth from the sea surface between 15 meters and 60 meters, preferably 20 to 45 meters, and most preferably 25 to 35 meters.
  • the anchor chain or wire, and/or an electrical wire fastened to the anchor chain or wire are prevented from falling to the seabed.
  • damage through interaction with the seabed is avoided.
  • This is advantageous at high sea depths. With high sea depths are understood sea- depths larger than 300 meters, preferably 400 meters, most preferably 500 meters.
  • the floating wind power plant is peculiar in that the support structure comprises pro pellers for manoeuvring of the floating wind power plant, which propellers are placed below the sea surface.
  • the technical effect achieved is that a yaw adjustment mechanism can be implement ed using the propellers.
  • the support structure and the wind turbine units can be placed optimally with respect to the wind direction.
  • the wind shaper is located at a windward side of the wind turbine units.
  • Fig. 2 shows the floating wind power plant shown in Fig. 1 from a side
  • Fig. 3 shows the floating wind power plant shown in Figs. 1-2 from the windward side
  • Fig. 4 shows the floating wind power plant shown in Figs. 1-3 from above
  • Fig. 5 shows the floating wind power plant shown in Figs. 1-4 connected to a bot tom anchor
  • Fig. 6 shows another embodiment of a floating wind power plant with a wind shap er in a perspective view
  • Fig. 7 shows another embodiment of a floating wind power plant in a perspective view
  • Fig. 8 shows the floating wind power plant shown in Fig. 7 from a side
  • Fig. 9 shows the floating wind power plant shown in Figs. 7-8 from the windward side
  • Fig. 10 shows the floating wind power plant shown in Fig. 9 from above
  • Fig. 11 shows another embodiment of a floating wind power plant according to the invention in a perspective view
  • Fig. 12 shows the floating wind power plant shown in Fig. 11 from a side
  • Fig. 13 shows the floating wind power plant shown in Figs. 11-12 from the wind ward side
  • Fig. 15 shows the floating wind power plant shown in Figs. 11-14 from below
  • Fig. 16 shows a part of the connecting structure of the floating wind power plant shown in Figs. 11-15
  • Fig. 17 shows another part of the connecting structure of the floating wind power plant shown in Figs. 11-15,
  • Fig. 18 shows a zoom of an elongated floating element of the floating wind power plant shown in Figs. 11-15,
  • Fig. 19 shows an example of an offshore wind park comprising floating wind power plants according to the invention
  • Fig. 20 shows an embodiment of a floating wind power plant comprising propellers from a side
  • Fig. 21 shows an embodiment of a floating wind power plant comprising a buoyancy device when the wind is not blowing
  • Fig. 22 shows an embodiment of a floating wind power plant comprising a buoyancy device when the wind is blowing
  • Figs. 23a-b shows a anchored floating element according to the invention.
  • Fig. 1 shows the floating wind power plant in a perspective view
  • Fig. 2 shows the floating wind power plant from a side
  • Fig. 3 shows the floating wind power plant from the windward side
  • Fig. 4 shows the floating wind power plant from above
  • Fig. 5 shows the floating wind power plant shown in Figs. 1-4 connected to a bottom an chor.
  • the floating wind power plant 1 comprises a support structure 3.
  • the support structure rests on a sea surface 5.
  • a wind turbine unit 7 On each elongated floating element 9, a wind turbine unit 7 is mounted.
  • the wind turbine units 7 comprise towers 13.
  • a nacelle 15 On top of each tower, a nacelle 15 is mounted.
  • the nacelle 15 is fixed non-rotatably on top of the tower 13.
  • Rotor blades 17 are arranged on a hub 19.
  • the rotor blades 17 and the hub 19 are arranged rotatably to said nacelle 15.
  • the wind turbine units convert kinetic energy of the wind into electrical energy through a generator (not shown).
  • each wind turbine unit 7 is located on top of one of the elongated floating elements 9.
  • the towers 13 are inclined towards the windward side 25.
  • the tower can be inclined in an angle of 0 to 10 degrees, preferably 5 to 7 degrees, most preferably 6 degrees.
  • the support structure 3 is connected to a anchored floating element 21 through con necting wires or chains 23.
  • the support structure can freely rotate in the wind around the anchored floating element 21.
  • the anchored floating element 21 is located in a position between the elongated float ing elements 9.
  • the anchored floating element 21 is located at a windward side 25 of the floating wind power plant 1, when said wind turbine units are in use.
  • the connecting wires or chains 23 have lengths ensuring that the anchored floating element 21 is maintained in the position between the elongated floating elements 9.
  • the floating wind power plant 1 comprises two tension wires or chains 29.
  • the ten sion wires or chains 29 connect the support structure 3 to the anchored floating ele- ment 21.
  • the tension wires or chains 29 are connected to the support structure 3 at an intermediate position along the direction of the elongated floating elements 9.
  • the floating wind power plant 1 further comprises two support wires or chains 31.
  • the support wires or chains 31 are connecting the anchored floating element with the support structure 3.
  • the support wires or chains 31 connect to the support structure 3 at a windward side of the tension wires or chains 29.
  • the support wires or chains 31 connect to the support structure 3 at a windward end 43 of the support struc ture.
  • the connecting structure 41 comprises a lattice structure 35 in which the towers 13 are used as lattice members 37.
  • the lattice structure 35 comprises lattice members 37 which extend obliquely in direc tion along the elongated floating elements 9.
  • the lattice structure 35 also comprises lattice members 37 which are transversal to the direction of the elongated floating elements 9.
  • the lattice structure 35 comprises lattice members 37 which extend obliquely between the elongated floating elements 9.
  • Fig. 5 shows the floating wind power plant comprising a bottom anchor 57 located at the bottom of a seabed 59.
  • the bottom anchor 57 is connected to an anchor chain or wire 61.
  • Figs. 6 shows another embodiment of a floating wind power plant with a wind shaper in a perspective view.
  • the floating wind power plant 1 comprises a wind shaper 44.
  • the wind shaper 44 shapes the incoming air leading it to the lower rotor blade of the wind turbine units 7. Thereby the wind speed at the lower rotor blade of wind turbine units 7 is increased.
  • the wind shaper 44 can be an oblique face 45.
  • the oblique face 45 can be fastened to lattice members 37 connecting the tower 13 with the elongated floating element 9.
  • the wind shaper 44 can be partially duct-formed.
  • the wind shaper 44 is located at a windward side of the wind turbine units 7.
  • the wind shaper 44 comprises solar cells 46.
  • the solar cells 46 generate electricity when the sun is shining.
  • Solar cells 46 are mounted on a second oblique face 47.
  • the second oblique face 47 is located on a leeward side of the wind turbine units 7.
  • Figs. 7-10 show another embodiment of a floating wind power plant.
  • Fig. 7 shows the floating wind power plant in a perspective view
  • Fig. 8 shows the floating wind power plant from a side
  • Fig. 9 shows the floating wind power plant from the windward side
  • Fig. 10 shows the floating wind power plant from above.
  • the towers 13 are arranged at a central position along the length of the elongated floating elements 9.
  • Connection points 51 between the connecting wires or chains 23 and the elongated floating elements 9 are arranged at a windward side 25 of the support structure 3 and the wind rudder 49 is arranged at a leeward side 27 of the support structure 3, prefera bly at an end 53 of the leeward side.
  • Figs. 11-18 show another embodiment of a floating wind power plant according to the invention.
  • Fig. 11 shows the floating wind power plant 1 in a perspective view
  • Fig. 12 shows the floating wind power plant from a side
  • Fig. 13 shows the floating wind power plant from the windward side
  • Fig. 14 shows the floating wind power plant from above
  • Fig. 15 shows the floating wind power plant from below
  • Fig. 16 shows a part of the con necting structure of the floating wind power plant
  • Fig. 17 shows another part of the connecting structure of the floating wind power plant shown in Figs. 11-15
  • Fig. 18 shows a zoom of an elongated floating element of the floating wind power plant shown in Figs. 11-15
  • This floating wind power plant 1 is capable of supporting 14 MW (megawatt) wind turbine units 7.
  • Each of the elongated floating elements 9 comprises three parallel elongated pipes 11.
  • the parallel elongated pipes are interconnected by a floating element lattice structure 67.
  • Two elongated buoyancy pipes 69 are located in a horizontal plane and deliver buoy ancy to the support structure 3.
  • a reinforce ment pipe 71 is placed on top and between said buoyancy pipes.
  • the three parallel elongated pipes form the edges of a triangle.
  • the floating element lattice structure 67 comprises members which form triangles with the parallel elongated pipes.
  • the floating element lattice structure can be pyramidal or tetrahedral.
  • the floating element lattice structure 67 increases strength and structural stability of the elongated floating elements 9.
  • the floating element lattice structure 67 reinforces the elongated floating element and makes it stiffer. A higher strength per weight than with a single pipe is achieved.
  • Transversal lattice members connecting the elongated floating elements can comprise a sub-lattice for reinforcement.
  • the sub-lattice structure can be triangular, pyramidal or tetrahedral.
  • the connecting structure comprises lattice members forming pyramids 75.
  • the top of two adjacent pyramids are connected with a lattice member.
  • a lattice member in each pyramid extends beyond the top of the pyramid connecting to an upper end of a tower 13 of a wind turbine unit 7.
  • Fig. 19 shows an example of an offshore wind park comprising floating wind power plants according to the invention.
  • the distance between the bottom anchor 57 and the support structure 3 is approxi mately 500 meters.
  • 32 sepa rate floating wind power plants 1 can be placed in an offshore wind park with 32 square kilometres.
  • the offshore wind park is arranged in a 4 by 8 grid.
  • the floating wind power plant 1 comprises four propellers 81. A propeller is placed at each end of an elongating floating element 9.
  • the propellers are oriented transversally to direction of the elongated floating ele ments.
  • the control system 85 can also control the propellers 81 automatically.
  • the automatic control of the propellers 81 can be based on input such as for example sea currents, wind direction and wave direction and/or height.
  • the inputs can be obtained by sen sors on the floating wind power plant. Alternatively, the inputs can be obtained from external data sources.
  • the technical effect achieved is that a yaw adjustment mechanism can be implement ed using the propellers.
  • the support structure and the wind turbine units can be placed optimally with respect to the wind direction.
  • Fig. 21 shows an embodiment of a floating wind power plant comprising a buoyancy device when the wind is not blowing
  • Fig. 22 shows an embodiment of a floating wind power plant comprising a buoyancy device when the wind is blowing.
  • the floating wind power plant 1 comprises a bottom anchor 57 located at the bottom of a seabed 59.
  • the bottom anchor can be a single element as shown in Fig. 22. Al ternatively, the bottom anchor can comprise multiple elements such as shown in Fig. 21.
  • the bottom anchor 57 is connected to an anchor chain or wire 61.
  • a buoyancy device 63 On the anchor chain or wire 61 there is arranged a buoyancy device 63.
  • the buoyancy device 63 exerts an upward-directed buoyancy force on the anchor chain or wire 61, preventing the anchor chain or wire from falling to the seabed.
  • the buoyancy device 63 is in use located in an upper sea layer 65 below the sea surface 5.
  • Fig. 23 a and Fig. 23 b show a anchored floating element according to the invention.
  • the anchored floating element comprises a buoyancy container 86.
  • the anchored floating element 21 comprises a vertical connector 87.
  • the vertical con nector 87 is connected to the bottom anchor 57 with the anchor chain or wire 61.
  • the vertical connector is rotatable around a vertical axis 89.
  • the vertical connector 87 is mounted with a bearing 91.
  • the electrical connection 92 connects to the anchored floating elements 21 vertical connector 87 via a commutator 93.
  • the electrical connection 92 leads to a junction box 95.
  • the junction box 95 can be on top of the anchored floating element.
  • a second part 101 of the electrical wire 97 connects the junction box 95 to the wind turbine units on the support structure to the electrical connection 92 of the anchored floating element with an on-shore power grid.
  • the junction box 95 is waterproof.
  • the connecting wires or chains 23, 29, 31 connecting the anchored floating element with the support structure 3 are connected in close proximity to each other. With close proximity is understood a distance less than half the maximum diameter of the an chored floating element, preferably less than 30% of the maximum diameter of the anchored floating element.
  • the vertical connector 87 is mounted rotatably with a bearing 91 at the anchored float ing element.
  • the second part 101 of the electrical wire 97 and the anchor chain or wire 61 are connected to the vertical connector 87.
  • the connecting wires or chains 23, 29, 31 and the second part 101 of the electrical wire 97 are not connected to the an chored floating element 21 via the vertical connector 87.
  • the support structure 3 can rotate freely around the anchored floating element 21 without entangling or dam aging the anchor chain or wire 61 or the electrical connection 92.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Wind Motors (AREA)

Abstract

Une ferme éolienne flottante comprend une structure de support reposant sur une surface de la mer et des unités d'éolienne. Ladite structure de support comprend au moins deux éléments flottants allongés parallèles qui sont interconnectés par l'intermédiaire d'une structure de raccordement. La structure de support est reliée par des câbles ou des chaînes de raccordement à un élément flottant ancré. L'élément flottant ancré est placé dans une position entre les éléments flottants allongés face au vent de la ferme éolienne flottante. Les câbles ou chaînes de raccordement sont reliés à des positions intermédiaires le long des éléments flottants allongés. Les fils ou chaînes de raccordement ont des longueurs garantissant que l'élément flottant ancré est maintenu dans la position entre les éléments flottants allongés. La structure de raccordement comprend une structure en treillis dans laquelle les tours sont utilisées comme élément de treillis et comprend des éléments de treillis s'étendant de manière oblique le long des éléments flottants allongés et transversalement à la direction des éléments flottants allongés.
PCT/DK2020/050117 2019-04-29 2020-04-28 Ferme éolienne flottante WO2020221405A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DKPA201970271 2019-04-29
DKPA201970271 2019-04-29

Publications (1)

Publication Number Publication Date
WO2020221405A1 true WO2020221405A1 (fr) 2020-11-05

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PCT/DK2020/050117 WO2020221405A1 (fr) 2019-04-29 2020-04-28 Ferme éolienne flottante

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113623141A (zh) * 2021-08-27 2021-11-09 上海电气风电集团股份有限公司 海上风机发电系统

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19727330A1 (de) 1997-06-27 1999-01-07 Innovations Und Bildungszentru Schwimmfähige Offshore-Windenergieanlage
WO2010093253A1 (fr) * 2009-02-10 2010-08-19 Nedreboe Oeyvind Éolienne en mer
WO2010123847A1 (fr) * 2009-04-20 2010-10-28 Barber Gerald L Éolienne flottante avec ancre de turbine
WO2011120521A1 (fr) * 2010-03-31 2011-10-06 Per Uggen Fondation flottante équipée de deux turbines éoliennes principales

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19727330A1 (de) 1997-06-27 1999-01-07 Innovations Und Bildungszentru Schwimmfähige Offshore-Windenergieanlage
WO2010093253A1 (fr) * 2009-02-10 2010-08-19 Nedreboe Oeyvind Éolienne en mer
WO2010123847A1 (fr) * 2009-04-20 2010-10-28 Barber Gerald L Éolienne flottante avec ancre de turbine
WO2011120521A1 (fr) * 2010-03-31 2011-10-06 Per Uggen Fondation flottante équipée de deux turbines éoliennes principales

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113623141A (zh) * 2021-08-27 2021-11-09 上海电气风电集团股份有限公司 海上风机发电系统

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