CN210592353U - Novel floating foundation of multi-buoy offshore wind turbine - Google Patents

Novel floating foundation of multi-buoy offshore wind turbine Download PDF

Info

Publication number
CN210592353U
CN210592353U CN201921521022.7U CN201921521022U CN210592353U CN 210592353 U CN210592353 U CN 210592353U CN 201921521022 U CN201921521022 U CN 201921521022U CN 210592353 U CN210592353 U CN 210592353U
Authority
CN
China
Prior art keywords
buoy
central
foundation
mooring
floating
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.)
Active
Application number
CN201921521022.7U
Other languages
Chinese (zh)
Inventor
毋晓妮
李晔
段磊
廖倩
章丽骏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Jiaotong University
Original Assignee
Shanghai Jiaotong University
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 Shanghai Jiaotong University filed Critical Shanghai Jiaotong University
Priority to CN201921521022.7U priority Critical patent/CN210592353U/en
Application granted granted Critical
Publication of CN210592353U publication Critical patent/CN210592353U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/72Wind turbines with rotation axis in wind direction
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/727Offshore wind turbines
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/728Onshore wind turbines

Abstract

The utility model discloses a floating foundation of a novel multi-buoy offshore wind turbine, which comprises a central buoy, a circumferential buoy, a support part, a truss part, a heave plate, a central soft cabin, a mooring system and an anchoring foundation; the wind turbine generator comprises a central buoy, a supporting component, a peripheral buoy, an anchoring foundation, a mooring system, a fan tower barrel, a fan blade. The utility model discloses main beneficial effect: the floating foundation of the novel multi-buoy offshore wind turbine suitable for deep-water wind power development is provided; the structure is optimized, the weight of the structure is reduced, and the motion performance is improved; the resistance of the floating type fan foundation to the complex offshore wind wave flow load is improved.

Description

Novel floating foundation of multi-buoy offshore wind turbine
The technical field is as follows:
the utility model relates to a floating offshore wind turbine supports basis field, concretely relates to novel many flotation pontoons offshore wind turbine floating basis.
Background art:
wind energy is a green energy source, and the main utilization form of the wind energy is wind power generation. At present, the development of land wind power and offshore wind power all have a certain scale globally. Compared with land wind energy, ocean wind energy has the advantages of high quality, stability and low interference degree. However, due to the particularity of the marine environment, the development speed and scale of offshore wind power are still a certain gap compared with onshore wind power. According to statistics, the total wind power exploitable reserve in China is about 1000GW, wherein 250GW is offshore wind power. By the end of 2018, the global wind power total installed capacity is 592GW, wherein the offshore wind power installed capacity is 23GW, and the occupation ratio is only about 4%. The newly increased installed capacity of the offshore wind power in 2018 is 4.5GW, China surpasses British and Germany for the first time, and the newly increased installed capacity of the offshore wind power of 1.8GW is leading; however, at the end of 2018, the offshore wind power total installed capacity still stays in the third place in China. Offshore wind power development is still an important hotspot for future new energy development in China.
At present, offshore wind power development is mainly focused on shallow water near-shore areas with the water depth of less than 50m, and most of wind turbines of the offshore wind power development adopt fixed wind turbine foundations such as gravity foundations, single piles, jacket foundations and the like. However, as the water depth increases, the economy and stability of these fixed wind turbine foundations become worse, and the development of deep-water wind power needs to be carried out by using floating wind turbine foundations.
After the concept of floating offshore wind turbines was proposed in 1972, with the development of floating platforms in the offshore oil and gas industry, 3 main types of floating wind turbine foundations, namely semi-submersible type, Spar and tension leg type, gradually appeared. But all are in the development stage at present, and the cost advantage and the applicability are not completely clear. Therefore, the floating offshore wind turbine foundation has the advantages of good research economy, simple structure, convenience in installation, good stability and good movement performance, and has important significance in effectively resisting complex wind and wave loads under extreme sea conditions.
The utility model has the following contents:
the utility model aims to provide a novel floating foundation of a multi-buoy offshore wind turbine, aiming at the defects of the prior art, and comprising a central buoy, a circumferential buoy, a support part, a truss part, a heave plate, a central soft cabin, a mooring system and an anchoring foundation;
the wind turbine generator comprises a central buoy, a supporting component, a peripheral buoy, an anchoring foundation, a mooring system, a fan tower barrel, a fan blade.
In one embodiment, the central pontoon is a cylindrical structure, and the support member comprises an inclined support member, and the central pontoon is connected with the circumferential pontoon through the inclined support member.
In one embodiment, the circumferential pontoons are in several pieces, distributed triangularly, said support members comprising horizontal support members, each circumferential pontoon being connected by a horizontal support member.
In one embodiment, the circumferential pontoons are in pieces, arranged in a rectangle, and the support members comprise horizontal support members, and each circumferential pontoon is connected by a horizontal support member.
In one embodiment, a buoyancy chamber or an energy storage chamber or a control cable chamber or a variable pressure cargo chamber can be arranged inside the central buoy; and installing a cable in the central soft cabin.
In one embodiment, a helical side plate is mounted to the outboard side of the center buoy.
In one embodiment, mooring system mooring points are provided on the side walls of the central buoy and the bottom of the central soft tank.
In one embodiment, the central buoy and the central soft tank can be fixed on the seabed by a mooring system through various anchoring foundations; the mooring system may be in the form of catenary mooring or taut mooring, or a combination of catenary mooring and taut mooring.
In one embodiment, the angle between the inclined support members and the central pontoon ranges from 10 ° to 60 °, and the inclined support members correspond to the number of circumferential pontoons installed.
In one embodiment, the anchoring base is fixed to the seabed.
In one embodiment, the floating foundation is a plurality of floating foundations, each floating foundation carries a wind turbine, each floating foundation is horizontally arranged between the floating foundations, and the floating foundations are moored by adopting tension or catenary lines.
In one embodiment, the circumferential buoy is a cylindrical hollow ring structure, the diameter of an inner ring is slightly larger than that of the support part, and the circumferential buoy can be sleeved on the support part through a connecting device; if be single the circumference flotation pontoon, then be located the intermediate position of supporting component, if be a plurality of circumference flotation pontoon, then along the length direction equipartition of supporting component.
Mainly have following advantage and beneficial effect:
(1) the floating foundation of the novel multi-buoy offshore wind turbine suitable for deep-water wind power development is provided;
(2) the structure is optimized, the weight of the structure is reduced, and the motion performance is improved;
(3) the resistance of the floating type fan foundation to the complex offshore wind wave flow load is improved;
(4) the dynamic response of the engine under various complex cyclic loads is effectively reduced;
(5) the structure is simple, the stability is good, the installation is easy, and the cost of the floating foundation and offshore wind power development is reduced.
Description of the drawings:
fig. 1 discloses a front view of a floating foundation of a novel multi-buoy offshore wind turbine in an embodiment of the present invention;
fig. 2 discloses a schematic view of a rectangular connection between the central pontoon, the circumferential pontoon and the support member according to another embodiment of the present invention;
fig. 3 shows a schematic view of a triangular connection between the central pontoon, the circumferential pontoon and the support member according to another embodiment of the present invention.
Wherein, 1-a central buoy, 2-a horizontal support component, 3-a circumferential buoy, 4-an oblique support component, 5-a truss component, 6-a heave plate, 7-a central soft tank, 8-a mooring system, 9-an anchoring foundation, 10-a cable, 11-a floating tank, 12-an energy storage tank, 13-a control cable tank, 14-a variable ballast tank, 15-a spiral side plate, 16-a fan tower, 17-a fan
The specific implementation mode is as follows:
the above and other features, properties and advantages of the present invention will become more apparent from the following description of the embodiments with reference to the accompanying drawings, in which like reference numerals refer to like features throughout, and in which:
referring to fig. 1 in conjunction with fig. 2 and 3, fig. 1 shows a front view of a floating foundation of a novel multi-pontoon offshore wind turbine according to an embodiment of the present invention. Fig. 2 shows a schematic view of a rectangular connection between the central pontoon, the circumferential pontoon and the support member according to another embodiment of the present invention. Fig. 3 shows a schematic view of a triangular connection between the central pontoon, the circumferential pontoon and the support member according to another embodiment of the present invention.
The floating foundation of a novel multi-buoy offshore wind turbine in fig. 1 comprises a central buoy 1, a circumferential buoy 3, a support member, a truss member 5, a heave plate 6, a central soft tank 7, a mooring system (not marked in the figure) and an anchoring foundation 9. The wind turbine generator comprises a central buoy 3, a truss component 5, a heave plate 6, a central soft cabin 7, a circumferential buoy 3, an anchoring foundation 9, a mooring system 8, a wind turbine tower barrel 16 and a wind turbine 17, wherein the truss component 5 is installed at the bottom of the central buoy 3, the heave plate 6 is installed on the truss component 5, the central soft cabin 7 is installed at the bottom of the truss component 5, the circumferential buoy 3 is connected above the central buoy 1 through the supporting component, the anchoring foundation 9 is arranged obliquely below the central buoy 1, the side face of the central buoy 1 is connected with the anchoring foundation 9 through the mooring system 8, the central buoy.
Preferably, the central pontoon 1 may be a cylindrical structure, the support members comprising diagonal support members 4, the central pontoon 1 being connected to the circumferential pontoon 1 by the diagonal support members 4.
Preferably, the circumferential pontoons 3 may be in several pieces, distributed triangularly (see fig. 3), the support members comprising horizontal support members 2, each circumferential pontoon 3 being connected by a horizontal support member 2.
Preferably, the circumferential pontoons 3 may be in several pieces, distributed in a rectangular shape (see fig. 2), the support members comprising horizontal support members 2, each circumferential pontoon 3 being connected by a horizontal support member 2.
Preferably, inside the central buoy 3, a buoyancy tank 11 or an energy storage tank 12 or a control cable tank 13 or a variable ballast tank 14 may be provided; the cables are installed in the central flexible compartment 7.
Preferably, a helical side plate 15 is mounted on the outer side of the central buoy 3.
Preferably, mooring system mooring points (not shown) are provided on the side walls of the central buoy 3 and the bottom of the central soft tank 7.
Preferably, the central buoy 3 and the central soft tank 7 can be fixed on the seabed by a mooring system 8 through various said anchoring foundations 9; the mooring system 8 may be in the form of catenary mooring or taut mooring, or a combination of catenary and taut mooring.
Preferably, the angle between the diagonal support members 4 and the central pontoon 3 ranges from 10 ° to 60 °, and the number of the diagonal support members 4 and the circumferential pontoons 3 are the same.
Preferably, the anchoring base 4 is fixed on the seabed.
Preferably, the floating foundation can be a plurality of floating foundations, each floating foundation can carry a fan, each floating foundation can be horizontally arranged, and the floating foundations are moored by adopting tension or catenary lines.
Preferably, the circumferential buoy 3 can be a cylindrical hollow ring structure, the diameter of the inner ring is slightly larger than that of the support part, and the circumferential buoy can be sleeved on the support part through a connecting device; in the case of a single circumferential pontoon 3, it is located at the middle position of the support member, and in the case of a plurality of circumferential pontoons 3, they are evenly distributed along the length direction of the support member.
It will be appreciated that the embodiment described in figure 2 may also be of a particular form of a rectangle, a square.
It will also be appreciated that the embodiment described in figure 2 may also be of a particular form of triangle, an equilateral triangle.
It can also be understood that a floating cabin, a variable ballast cabin, an energy storage cabin, a power transmission cable and a control cable cabin are arranged inside the central buoy, and a connecting wellhead is arranged at the bottom of the central buoy and is connected with a seabed power transmission cable through a heave plate module and a wellhead at the bottom of the central flexible cabin for power transmission.
It can also be understood that the upper part of the central buoy is an offshore wind turbine tower connecting section which is connected with a wind turbine tower.
As a preferred technical feature, the side wall of the central pontoon is provided with a spiral side plate to reduce vortex-induced vibration.
As a preferred technical feature, the circumferential horizontal supports are connected to each other in a square or equilateral triangular configuration, and one or several circumferential buoys are axially arranged along the support shaft for each circumferential horizontal support and inclined support.
As a preferred feature, the circumferential horizontal and inclined support members are of hollow conduit construction and may be connected to one another by welding.
As the optimized technical characteristics, the inclined support component is connected with the central buoy, and the included angle is 10-60 degrees; according to the form (square or equilateral triangle) formed by the upper circumferential horizontal supports, the number of the circumferential oblique support parts is 3 or 4;
as a preferable technical characteristic, a mooring system mooring line point is arranged at the connecting point of the horizontal supporting component and the oblique supporting component, and a mooring system mooring line point is arranged on the side wall of the central buoy and the bottom of the central soft cabin;
as a preferred technical characteristic, the circumferential buoy can be a cylindrical hollow annular structure, and the diameter of an inner ring is slightly larger than the diameter of the circumferential horizontal/lateral support; the connecting device can be sleeved on the circumferential horizontal support and the inclined support; the single circumferential pontoon is located at the middle position of the support, and if the circumferential pontoon is a plurality of circumferential pontoons, the circumferential pontoons are uniformly distributed on the support component.
As a preferable technical feature, the structure can be used as a module unit, and multiple modules are connected in the horizontal direction to carry multiple floating fans. In case of multiple fans, the modules are moored by tension or catenary lines at the connection angle points.
The utility model provides a novel many flotation pontoons are marine fan floating basis. By adopting a mode of a plurality of semi-submersible buoys and full-submersible buoys and combining the high-strength characteristic of the support part, the floating type wind turbine foundation structure is optimized, the resistance and the movement performance of the floating type wind turbine foundation to complex offshore wind and wave flow loads are improved, and the dynamic response of the floating type wind turbine foundation under various complex cyclic loads is effectively reduced; the structure is simple, the stability is good, the installation is easy, the cost of the floating foundation and offshore wind power development is reduced, and the floating foundation is a novel offshore wind turbine floating foundation form.
Meanwhile, the problems that the existing floating offshore wind turbine supporting foundation is lack in type, high in cost and insufficient in extreme sea condition resistant complex load capacity are effectively solved.
The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, the technical scheme and the embodiments similar to the technical scheme should be designed without creativity without departing from the spirit of the present invention, and the scope of the present invention should be protected.

Claims (12)

1. The utility model provides a novel many flotation pontoons offshore wind turbine floating basis which characterized in that: the mooring device comprises a central buoy, a circumferential buoy, a supporting component, a truss component, a heave plate, a central soft cabin, a mooring system and an anchoring foundation; wherein the content of the first and second substances,
the wind turbine generator system comprises a central buoy, a supporting component, a peripheral buoy, an anchoring foundation, a mooring system and a fan, wherein the bottom of the central buoy is provided with a truss component, the truss component is provided with a heave plate, the bottom of the truss component is provided with a central soft cabin, the upper side of the central buoy is connected with the peripheral buoy through the supporting component, the anchoring foundation is arranged below the central buoy in an inclined mode, the side face of the central buoy is connected with the anchoring foundation through the mooring system, the central buoy is arranged at the bottom of a fan tower.
2. The floating foundation of claim 1, wherein: the central flotation pontoon is the cylinder structure, the support component includes the diagonal bracing part, the central flotation pontoon pass through the diagonal bracing part with the circumference flotation pontoon is connected.
3. The floating foundation of claim 2, wherein: the circumference flotation pontoon is a plurality of, is triangular distribution, the support component includes horizontal support component, and every circumference flotation pontoon passes through horizontal support component to be connected.
4. The floating foundation of claim 2, wherein: the circumference flotation pontoon is a plurality of, is the rectangle and distributes, the support component includes horizontal support component, and every circumference flotation pontoon passes through horizontal support component to be connected.
5. The floating foundation of claim 2, wherein: a floating cabin or an energy storage cabin or a control cable cabin or a variable pressure loading cabin can be arranged in the central buoy; and installing a cable in the central soft cabin.
6. The floating foundation of claim 1, wherein: and a spiral side plate is arranged on the outer side surface of the central buoy.
7. The floating foundation of claim 1, wherein: and mooring system mooring points are arranged on the side wall of the central buoy and the bottom of the central soft cabin.
8. The floating foundation of claim 7, wherein: the central buoy and the central soft cabin can be fixed on the seabed by a mooring system through various anchoring bases; the mooring system may be in the form of catenary mooring or taut mooring, or a combination of catenary mooring and taut mooring.
9. The floating foundation of claim 2, wherein: the inclined support component with the contained angle scope between the central flotation pontoon is at 10 to 60, the inclined support component with the installation quantity of circumference flotation pontoon is unanimous.
10. The floating foundation of claim 1, wherein: the anchoring foundation is fixed on the seabed.
11. The floating foundation of claim 1, wherein: the floating foundation is provided with a plurality of floating foundations, each floating foundation carries a fan, and the floating foundations are horizontally arranged and moored by adopting tensioning or catenary lines.
12. The floating foundation of claim 1, wherein: the circumferential buoy is of a cylindrical hollow annular structure, the diameter of an inner ring is slightly larger than that of the support part, and the circumferential buoy can be sleeved on the support part through a connecting device; if be single the circumference flotation pontoon, then be located the intermediate position of supporting component, if be a plurality of circumference flotation pontoon, then along the length direction equipartition of supporting component.
CN201921521022.7U 2019-09-09 2019-09-09 Novel floating foundation of multi-buoy offshore wind turbine Active CN210592353U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921521022.7U CN210592353U (en) 2019-09-09 2019-09-09 Novel floating foundation of multi-buoy offshore wind turbine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921521022.7U CN210592353U (en) 2019-09-09 2019-09-09 Novel floating foundation of multi-buoy offshore wind turbine

Publications (1)

Publication Number Publication Date
CN210592353U true CN210592353U (en) 2020-05-22

Family

ID=70716415

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921521022.7U Active CN210592353U (en) 2019-09-09 2019-09-09 Novel floating foundation of multi-buoy offshore wind turbine

Country Status (1)

Country Link
CN (1) CN210592353U (en)

Similar Documents

Publication Publication Date Title
US10569844B2 (en) Floating offshore wind turbine comprising a combination of damping means
AU2015226662B2 (en) Flare-type tensile legs floating wind turbine base, offshore wind turbine and construction method
CN208416796U (en) A kind of four columns band ballast semi-submersible type floating blower foundation
CN112009634A (en) Submersible active support structure in offshore installations
WO2018095304A1 (en) Movable ballast leveling control device for use in floating wind turbine
CN110525599A (en) A kind of novel more floating drum offshore wind turbines buoyant foundation
CN108715215A (en) A kind of four column semi-submersible type blower foundation of double floating bodies
US20130152839A1 (en) System of anchoring and mooring of floating wind turbine towers and corresponding methods for towing and erecting thereof
CN108757336A (en) A kind of four columns band ballast semi-submersible type floating blower foundation
CN108248783B (en) construction method of offshore wind power submersible floating foundation
CN111140440A (en) Semi-submerged floating type fan foundation and fan
CN110203342A (en) More column floating type wind power generation devices
US8653682B2 (en) Offshore hydroelectric turbine assembly and method
CN107585268A (en) Tension leg offshore floating type wind driven generator base
CN108407987B (en) Overwater stretched offshore wind power floating foundation and construction method thereof
CN110949633A (en) Barge type floating fan system and floating fan platform
CN110356521A (en) A kind of semisubmersible-type floatation type blower fan structure of floating drum flexible connection
CN109941396A (en) A kind of fork mooring wire type blower anchoring system and offshore wind energy plant
CN210592353U (en) Novel floating foundation of multi-buoy offshore wind turbine
CN104816797A (en) Offshore wind driven generator set and mounting method thereof
CN100552214C (en) Cone screw wave energy and energy by ocean current universal electricity generating device
CN110345010B (en) Offshore wind turbine power generation equipment with anti-rolling function
CN210766857U (en) Floating foundation of offshore wind turbine with combined jacket and floating barrel
KR101257425B1 (en) Floating offshore wind power generation plant
CN110565678A (en) floating foundation of offshore wind turbine with combined jacket and floating barrel

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant