CN116677565B - A floating wind turbine foundation and an offshore floating wind turbine - Google Patents
A floating wind turbine foundation and an offshore floating wind turbine Download PDFInfo
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- CN116677565B CN116677565B CN202310689953.2A CN202310689953A CN116677565B CN 116677565 B CN116677565 B CN 116677565B CN 202310689953 A CN202310689953 A CN 202310689953A CN 116677565 B CN116677565 B CN 116677565B
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- 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
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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
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- 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
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/0296—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor to prevent, counteract or reduce noise emissions
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- 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
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
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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
- B63B2035/4433—Floating structures carrying electric power plants
- B63B2035/446—Floating structures carrying electric power plants for converting wind energy into electric energy
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- 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
- F05B2260/00—Function
- F05B2260/96—Preventing, counteracting or reducing vibration or noise
- F05B2260/964—Preventing, counteracting or reducing vibration or noise by damping means
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- 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
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- 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
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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)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Architecture (AREA)
- Wind Motors (AREA)
- Fluid-Damping Devices (AREA)
Abstract
本发明公开了一种漂浮式风力机基础及海上漂浮式风力机，包括浮筒、复合式阻尼器、连接板和控制系统，所述浮筒有多个，并呈正多边形等间距排列，相邻两个浮筒之间通过连接板活动连接，每个浮筒内设置有复合式阻尼器，所述控制系统与复合式阻尼器连接，通过控制系统控制复合式阻尼器从而实现漂浮式风力机阻尼的动态调节。本发明能够有效地降低漂浮式风力机运动响应幅值，从而可以降低基础浮体和系泊系统受力，降低基础设计要求，减少基础材料用量，减少施工造价，达到降本效果。
The present invention discloses a floating wind turbine foundation and an offshore floating wind turbine, including a buoy, a composite damper, a connecting plate and a control system. The buoys are multiple and arranged in a regular polygon with equal spacing. Two adjacent buoys are movably connected by a connecting plate. A composite damper is arranged in each buoy. The control system is connected to the composite damper. The composite damper is controlled by the control system to achieve dynamic adjustment of the damping of the floating wind turbine. The present invention can effectively reduce the amplitude of the motion response of the floating wind turbine, thereby reducing the stress of the foundation buoy and the mooring system, reducing the foundation design requirements, reducing the amount of foundation materials, reducing the construction cost, and achieving the cost reduction effect.
Description
Technical Field
The invention relates to the technical field of offshore wind turbines, in particular to a floating wind turbine foundation and an offshore floating wind turbine.
Background
As offshore wind power offshore resources are saturated, the development trend of the offshore wind power to deep open sea is obvious. 80% of the world's offshore wind resources are located in sea areas with water depths exceeding 60 meters. Because offshore wind power resources are relatively limited, wind power in a deep sea area is stronger and more continuous than that in an offshore area, the utilization rate of wind power in deep open sea is higher, the offshore wind resources can be fully utilized, and the development force of the deep open sea offshore wind power is increased. Therefore, it is a necessary trend in the future to develop a floating offshore wind power technology suitable for deeper sea areas.
At present, the construction cost of the overseas floating wind power project is about 50 yuan/W, and the construction cost of the domestic prototype project is about 38-40 yuan/W. The future lowering direction is mainly on the basis of floating body, mooring system and construction cost. In terms of the current domestic prototype engineering, the cost of the foundation floating body, the mooring system and the construction cost is more than 80% of the total cost, and a larger cost reduction space is expected.
The key of reducing the cost of the floating wind turbine is to reduce the stress of a foundation floating body and a mooring system and the design requirement of the foundation. How to reduce the stress of a foundation floating body and a mooring system, reduce the foundation design requirement and the consumption of foundation materials, and ensure the stability and the safety of the running of a unit at the same time is the key point of the current research and development.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides a floating wind turbine foundation based on a composite damper, and can effectively reduce the motion response amplitude of the floating wind turbine, so that the stress of a foundation floating body and a mooring system can be reduced, the foundation design requirement is reduced, the consumption of foundation materials is reduced, the construction cost is reduced, and the effect of reducing the cost is achieved.
Another object of the invention is to provide an offshore floating wind turbine.
The aim of the invention is achieved by the following technical scheme:
The utility model provides a float formula wind turbine foundation based on combined type attenuator, includes flotation pontoon, combined type attenuator, connecting plate and control system, the flotation pontoon has a plurality ofly to be regular polygon equidistant range, through connecting plate swing joint between two adjacent flotation pontoons, be provided with combined type attenuator in every flotation pontoon, control system is connected with combined type attenuator, thereby realizes the dynamic adjustment of float formula wind turbine damping through control system control combined type attenuator.
Further, the composite damper comprises a separation plate, a magnetorheological damper arranged on the upper side of the separation plate and a hydraulic damper arranged on the lower side of the separation plate, wherein the magnetorheological damper is connected with the hydraulic damper, and the control system is respectively connected with the magnetorheological damper and the hydraulic damper.
Further, the magnetorheological damper comprises a magnetorheological inner cylinder, a magnetorheological fluid through hole, a magnetorheological piston, a flow dividing plate, a baffle plate, an electromagnetic coil and a magnetorheological fluid pump, wherein the magnetorheological inner cylinder is arranged between the partition plate and the top wall of the pontoon, the upper part and the lower part of the magnetorheological inner cylinder are respectively provided with a plurality of the magnetorheological fluid through holes along the circumferential direction at intervals, the magnetorheological piston is arranged in the magnetorheological inner cylinder, the magnetorheological piston is connected with the hydraulic damper, the magnetorheological fluid pump is respectively arranged on the partition plate and the top wall of the pontoon, the control system is used for controlling the magnetorheological fluid pump to drive the magnetorheological fluid in the magnetorheological damper to flow, the active circulation of the magnetorheological fluid is realized, meanwhile, the control system is used for controlling the magnetorheological fluid pump to change the flow direction of the magnetorheological fluid according to the motion state of the wind turbine, the flow dividing plate is arranged between the pontoon and the magnetorheological fluid inner cylinder, the baffle plate is vertically or obliquely connected with the flow dividing plate, the electromagnetic coil is arranged on the baffle plate and the flow dividing plate, the flow dividing plate can divide the magnetorheological fluid, the magnetorheological fluid is enabled to flow through the electromagnetic coil, and the flow direction of the magnetorheological fluid can be changed.
Further, the hydraulic damper comprises a piston rod, a hydraulic piston, a pneumatic pump and a flow valve, a piston hole for installing the piston rod is formed in the center of the partition plate, one end of the piston rod penetrates through the piston hole and extends upwards to extend into a magnetorheological inner cylinder of the magnetorheological damper and is connected with the magnetorheological piston of the magnetorheological damper, the other end of the piston rod extends downwards and is connected with the hydraulic piston, the pneumatic pump is arranged at the bottom of the partition plate and is connected with a control system, and the flow valve is arranged on a heave plate at the bottom of the pontoon and is positioned below the hydraulic piston.
Further, the flow dividing plate is arranged in the axial direction parallel to the pontoon, or in the axial direction perpendicular to the pontoon, or in an inclined manner relative to the pontoon.
Further, the surfaces of the flow dividing plate and the baffle plate are in a plane, curved surface or broken line surface structure.
Further, the electromagnetic coil is arranged on the baffle plate and the flow dividing plate in a pre-buried or clamping groove mode.
Furthermore, the splitter plate is connected with the pontoon, the splitter plate and the baffle plate in a sliding groove, screw threads or riveting mode.
Further, the pontoon is connected with the connecting plate by adopting a movable joint, the pontoon comprises a barrel body and a heave plate arranged at the bottom of the barrel body, the heave plate is in a round or regular polygon structure, and a mooring hole for connecting a mooring line is arranged at the bottom of the barrel body.
The other object of the invention is achieved by the following technical scheme:
The utility model provides an offshore floating wind turbine, includes wind wheel, cabin, tower section of thick bamboo, mooring line, anchor and above-mentioned floating wind turbine foundation based on combined type attenuator, the wind wheel is connected with the cabin, the cabin sets up in the top of tower section of thick bamboo, the tower section of thick bamboo sets up in the top of floating wind turbine foundation, floating wind turbine foundation passes through the mooring line and is connected with the anchor that sets up under water.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. according to the floating wind turbine foundation, through the design of the pontoon and the connecting plate, meanwhile, the composite damper is arranged in the pontoon, so that the dynamic adjustment of the damping of the wind turbine can be realized, the structural stability of the wind turbine is improved, the design requirement of the foundation and the material consumption are reduced, the structure is simple, the installation is convenient, and the cost reduction of the whole wind turbine can be realized.
2. The pontoons are connected through the connecting plates, so that the transverse size can be effectively increased, the gravity center of the foundation structure is reduced, the steel consumption is reduced, and the heave plate and the connecting plates at the bottom of the pontoons can be additionally damped and have additional mass to inhibit heave motion response.
3. The composite damper can adjust the structural damping of the wind turbine according to different running states of the wind turbine through the combination of the magneto-rheological damper and the hydraulic damper, and enhances the adaptability of the wind turbine.
4. The baffle plate and the flow dividing plate of the magnetorheological damper are designed by adopting plane, curved surface or fold line surface, so that the flow shearing area of the magnetorheological fluid is increased, the speed of the magnetorheological fluid is effectively controlled by the combined design of the magnetorheological piston and the magnetorheological fluid pump, the controllability of the damping ratio is enhanced, and the stability of the whole structure of the wind turbine is ensured.
Drawings
FIG. 1 is a schematic view of the overall structure of a floating wind turbine foundation according to the present invention.
Fig. 2 is a schematic structural view of the composite damper of the present invention.
Fig. 3 is a schematic structural view of the partition plate of the present invention.
FIG. 4 is a schematic view of the structure of the present invention in which the baffle plate is connected to the baffle plate by a chute.
FIG. 5 is a schematic view of the structure of the baffle plate and baffle plate of the present invention using threaded connection.
FIG. 6 is a schematic view of the overall structure of the floating wind turbine of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by persons of ordinary skill in the art without making any inventive effort based on the embodiments of the present invention are within the scope of protection of the present invention.
Example 1:
As shown in fig. 1 to 5, the present embodiment provides a floating wind turbine foundation based on a composite damper, which includes a plurality of buoys 1, a composite damper, a connection board 3 and a control system (not shown in the drawings), wherein the buoys 1 are arranged in regular polygon and equidistant, and are used for providing main buoyancy, two adjacent buoys 1 are movably connected through the connection board 3, each of the buoys 1 is provided with the composite damper, and the control system is connected with the composite damper, and the control system controls the composite damper to realize dynamic adjustment of damping of the floating wind turbine.
Specifically, the composite damper comprises a partition plate 201, a magnetorheological damper arranged on the upper side of the partition plate 201 and a hydraulic damper arranged on the lower side of the partition plate 201, wherein the magnetorheological damper is connected with the hydraulic damper, and the control system is respectively connected with the magnetorheological damper and the hydraulic damper.
Specifically, the magnetorheological damper comprises an inner magnetorheological cylinder 202, a magnetorheological fluid through hole 203, a magnetorheological piston 204, a splitter plate 205, a baffle 206, an electromagnetic coil 207 and a magnetorheological fluid pump 208, wherein the inner magnetorheological cylinder 202 is arranged between the splitter plate 201 and the top wall of the pontoon 1, a plurality of the magnetorheological fluid through holes 203 are respectively arranged at the upper part and the lower part of the inner magnetorheological cylinder along the circumferential direction at intervals, the magnetorheological piston 204 is arranged in the inner magnetorheological cylinder, the magnetorheological piston 204 is connected with a piston rod 209 of the hydraulic damper in a bolt or bolt mode, the plurality of the magnetorheological fluid pumps 208 are respectively arranged on the splitter plate and the top wall of the pontoon, the control system is used for controlling the magnetorheological fluid pump to drive the magnetorheological fluid in the magnetorheological damper to flow, the active circulation of the magnetorheological fluid is realized, meanwhile, the control system is used for controlling the magnetorheological fluid pump to change the flow direction of the magnetorheological fluid according to the movement state of the wind turbine, the splitter plate 205 is arranged between the pontoon 1 and the inner magnetorheological fluid cylinder 202, the baffle 206 is vertically or obliquely connected with the splitter plate 205, the electromagnetic coil 207 is arranged on the baffle 206 and the splitter plate 205, the splitter plate 205 can split the magnetorheological fluid and the magnetorheological fluid 207 so that the flow can flow through the electromagnetic coil 206.
In particular, the diverter plate 205 may be disposed in an axial direction parallel to the pontoon, or in an axial direction perpendicular to the pontoon, or inclined relative to the pontoon. The diverter plate 205 and the baffle plate 206 may be designed in a planar, curved or broken line configuration.
In this embodiment, taking the axial setting of the splitter plate along being parallel to the pontoon as an example, the splitter plate is integrally cylindrical, the splitter plate is axially fixed between the splitter plate 201 and the pontoon 1, at this time, through holes for flowing the magnetic fluid can be processed at the top and the bottom of the splitter plate corresponding to the magnetic fluid through holes 203 according to needs, so that the magnetic fluid flows, a plurality of baffle plates 206 are vertically connected to the inner wall and the outer wall of the splitter plate respectively, the installation angle of the baffle plates 206 can also be adjusted according to the splitter plate 205, and electromagnetic coils can be arranged on the baffle plates 206 and the splitter plate 205 in a pre-buried or clamping groove mode.
As shown in fig. 4 to 5, the splitter plate 205, the pontoon 1, the splitter plate 201 and the baffle plate 206 may be connected by a sliding groove, a thread or a rivet, which has a simple structure and is convenient for disassembly and adjustment. When a chute connection is adopted, the corresponding positions of the splitter plate 205, the baffle plate 206, the pontoon 1 and the separation plate 201 are provided with connecting chutes.
In the embodiment, a loop for circulating the magnetic fluid is formed by the pontoon 1, the magnetic fluid inner cylinder 202, the magnetic fluid through hole 203, the magnetic fluid piston 204, the baffle plate 206, the flow dividing plate 205 and the partition plate 201, the magnetic fluid inside the magnetic fluid inner cylinder 202 flows to the outside of the magnetic fluid inner cylinder 202 through the magnetic fluid through hole 203 by the movement of the magnetic fluid piston 204, so that the head-shaking movement of the wind turbine is restrained, meanwhile, the magnetic fluid pump is controlled by the control system to drive the magnetic fluid to flow, the active circulation of the magnetic fluid is realized, and meanwhile, the control system can control the magnetic fluid pump to change the flowing direction of the magnetic fluid according to the movement state of the wind turbine, so that the transverse movement of the wind turbine is restrained.
Specifically, the hydraulic damper includes a piston rod 209, a hydraulic piston 210, a pneumatic pump 211 and a flow valve 212, a piston hole 2011 for installing the piston rod 209 is provided at the center of the partition plate 201, one end of the piston rod 209 passes through the piston hole and extends upward into the magnetorheological inner cylinder 202 of the magnetorheological damper, and is connected with the magnetorheological piston 204 in the magnetorheological inner cylinder 202 by means of bolts or bolts, the other end of the piston rod extends downward and is connected with the hydraulic piston 210, the pneumatic pump 211 is disposed at the bottom of the partition plate 201 and is connected with a control system, and the flow valve 212 is disposed on the heave plate 102 at the bottom of the pontoon 1 and is located below the hydraulic piston 210.
The specific type, size and number of hydraulic pumps 211 and flow valves 212 of the hydraulic damper in this embodiment may be selected according to the wind turbine. When the wind turbine is in operation, the hydraulic damper provides main buoyancy, and dynamic buoyancy is completed through the pneumatic pump 211.
In the embodiment, the pontoon 1 and the connecting plate 3 can be connected by adopting movable joints so as to ensure that the foundation can move with multiple degrees of freedom.
Specifically, the buoy 1 comprises a barrel 101 and a heave plate 102 arranged at the bottom of the barrel 101, the heave plate 102 is in a round or regular polygon structure, and a mooring hole 103 for connecting a mooring line 7 is arranged at the bottom of the barrel 101. The pontoon 1 can be designed into a cylinder, a polygonal cube, an irregular body and the like according to actual requirements.
In this embodiment, when damping adjustment is required to perform wind turbine motion response control, the following three schemes may be adopted:
According to the scheme one, the control system controls the pneumatic pump 211 to act, seawater enters the hydraulic damper through the flow valve 212 to push the hydraulic piston 210 to move, and meanwhile, the piston rod 209 pushes the magnetic flow piston 204 to move to cause the magnetic flow to flow, so that the movement response inhibition of the wind turbine is realized.
In the second scheme, the control system controls the pneumatic pump 211 to act, seawater enters the hydraulic damper through the flow valve 212 to push the hydraulic piston 210 to move, the piston rod 209 pushes the magnetic flow piston 204 to move to cause the magnetic flow, and meanwhile, the control system applies exciting current to the electromagnetic coil to generate required damping force, so that the motion response inhibition of the wind turbine is realized.
The control system controls the operation of the magnetic fluid pump 208 to drive the magnetic fluid to circulate in the magneto-rheological damper so as to generate a required damping force by applying exciting current to the electromagnetic coil, thereby realizing the motion response inhibition of the wind turbine.
Example 2:
As shown in fig. 6, the present embodiment provides an offshore floating wind turbine, which comprises a wind wheel 4, a nacelle 5, a tower 6, a mooring line 7, an anchor device 8 and a floating wind turbine foundation based on a composite damper, wherein the wind wheel 4 is connected with the nacelle 5, the nacelle 5 is arranged at the top of the tower 6, the tower 6 is arranged at the top of the floating wind turbine foundation, and the floating wind turbine foundation is connected with the anchor device 8 arranged under water through the mooring line 7.
Specifically, the mooring line 7 is a blocked chain designed and manufactured by adopting materials such as a mooring chain, a steel wire rope, synthetic fiber and the like, and the anchoring device 8 can adopt a grabbing anchor, a gravity anchor, a pile anchor or a suction anchor.
The number of forms of mooring lines 7, the manner of fixing the anchoring means 8, and the shape of the buoy 1 and the number of dimensions of the individual parts are set according to the actual requirements to achieve the most stable fixing.
According to the invention, through the design of the floating wind turbine foundation based on the composite damper, the motion response amplitude of the floating wind turbine can be effectively reduced, so that the stress of a foundation floating body and a mooring system is reduced, the foundation design requirement is reduced, the consumption of foundation materials is reduced, the effect of reducing the cost is achieved, and meanwhile, the stability and the safety of the running of a unit can be ensured.
The above description is only of the preferred embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the inventive conception of the present invention equally within the scope of the disclosure of the present invention.
Claims (8)
1. The floating wind turbine foundation based on the composite damper is characterized by comprising a plurality of buoys, the composite damper, a connecting plate and a control system, wherein the buoys are arranged at equal intervals in a regular polygon, two adjacent buoys are movably connected through the connecting plate, the composite damper is arranged in each buoy, the control system is connected with the composite damper, the composite damper is controlled by the control system so as to realize dynamic adjustment of the floating wind turbine damping, the composite damper comprises a separation plate, a magneto-rheological damper arranged on the upper side of the separation plate and a hydraulic damper arranged on the lower side of the separation plate, the magneto-rheological damper is connected with the hydraulic damper, the control system is respectively connected with the magneto-rheological damper and the hydraulic damper, the magneto-rheological damper comprises magneto-rheological inner cylinders, magneto-rheological fluid through holes, magneto-rheological pistons, flow dividing plates, electromagnetic coils and liquid pumps, the magneto-rheological fluid flow through the dividing plates, the magneto-rheological fluid through holes are respectively arranged between the separation plates and the top walls of the buoys, the magneto-rheological damper is arranged at intervals in the circumferential directions, the magneto-rheological damper is arranged in the magneto-rheological damper, the magneto-rheological damper is connected with the magneto-rheological damper, the magneto-rheological damper is arranged on the top wall, the magneto-rheological damper is arranged on the magneto-rheological damper, the magneto-rheological damper is arranged on the top wall, and the magneto-rheological damper is arranged on the basis of the magneto-rheological damper, and the magnetic damper is arranged on the magnetic flow, and the magnetic damper. The magnetic flow is enabled to flow through the electromagnetic coil, and the baffle plate can change the flowing direction of the magnetic flow.
2. The floating wind turbine foundation based on the composite damper according to claim 1, wherein the hydraulic damper comprises a piston rod, a hydraulic piston, a pneumatic pump and a flow valve, a piston hole for installing the piston rod is arranged in the center of the partition plate, one end of the piston rod penetrates through the piston hole and extends upwards into a magnetorheological inner cylinder of the magnetorheological damper and is connected with the magnetorheological piston of the magnetorheological damper, the other end of the piston rod extends downwards and is connected with the hydraulic piston, the pneumatic pump is arranged at the bottom of the partition plate and is connected with the control system, and the flow valve is arranged on a heave plate at the bottom of the pontoon and is positioned below the hydraulic piston.
3. The floating wind turbine foundation of claim 1 wherein said diverter plate is disposed parallel to the axis of the pontoon, perpendicular to the axis of the pontoon, or inclined with respect to the pontoon axis.
4. The floating wind turbine foundation based on the composite damper of claim 1 wherein the surfaces of the diverter plate and the baffle plate are in a planar, curved or broken line structure.
5. The floating wind turbine foundation based on the composite damper of claim 1, wherein the electromagnetic coil is arranged on the baffle plate and the flow dividing plate in a pre-buried or clamping groove mode.
6. The floating wind turbine foundation based on the composite damper of claim 1, wherein the splitter plate is connected with the pontoon, the splitter plate and the baffle plate in a sliding groove, a thread or a riveting mode.
7. The floating wind turbine foundation based on the composite damper of claim 1, wherein the pontoon is connected with the connecting plate by a movable joint, the pontoon comprises a barrel and a heave plate arranged at the bottom of the barrel, the heave plate is in a circular or regular polygon structure, and a mooring hole for connecting a mooring line is arranged at the bottom of the barrel.
8. An offshore floating wind turbine comprising a wind wheel, a nacelle, a tower, a mooring line, an anchor device and the composite damper-based floating wind turbine foundation of any one of claims 1 to 7, wherein the wind wheel is connected with the nacelle, the nacelle is arranged at the top of the tower, the tower is arranged at the top of the floating wind turbine foundation, and the floating wind turbine foundation is connected with the anchor device arranged under water through the mooring line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310689953.2A CN116677565B (en) | 2023-06-12 | 2023-06-12 | A floating wind turbine foundation and an offshore floating wind turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310689953.2A CN116677565B (en) | 2023-06-12 | 2023-06-12 | A floating wind turbine foundation and an offshore floating wind turbine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116677565A CN116677565A (en) | 2023-09-01 |
| CN116677565B true CN116677565B (en) | 2025-03-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310689953.2A Active CN116677565B (en) | 2023-06-12 | 2023-06-12 | A floating wind turbine foundation and an offshore floating wind turbine |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1648487A (en) * | 2005-01-28 | 2005-08-03 | 浙江大学 | A magnetorheological fluid semi-active shock absorber with composite structure |
| CN109441733A (en) * | 2018-12-14 | 2019-03-08 | 青岛理工大学 | Novel energy-absorbing vibration-reducing deep sea wind power generation floating type semi-submersible platform |
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| CN102720209B (en) * | 2012-06-29 | 2015-02-04 | 北京金风科创风电设备有限公司 | Retractable damping device and offshore floating wind turbine foundation |
| CZ304949B6 (en) * | 2013-12-18 | 2015-02-04 | Vysoké Učení Technické V Brně | Magnetorheologic valve |
| CN111637021A (en) * | 2020-05-26 | 2020-09-08 | 南方科技大学 | A floating offshore power generation system |
| CN111637016A (en) * | 2020-05-27 | 2020-09-08 | 深圳市合众清洁能源研究院 | A floating offshore wind turbine system |
| CN212337538U (en) * | 2020-05-27 | 2021-01-12 | 深圳市合众清洁能源研究院 | A floating offshore wind turbine system |
| CN112923002B (en) * | 2021-02-23 | 2022-10-25 | 山东科技大学 | Composite impact resistance device and application thereof |
| CN114162263B (en) * | 2021-12-17 | 2023-01-06 | 浙江大学 | A floating wind turbine mooring system and control method based on active control |
| CN114313125B (en) * | 2022-01-05 | 2023-06-13 | 四川宏华石油设备有限公司 | Floating foundation and active ballast system thereof |
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| CN1648487A (en) * | 2005-01-28 | 2005-08-03 | 浙江大学 | A magnetorheological fluid semi-active shock absorber with composite structure |
| CN109441733A (en) * | 2018-12-14 | 2019-03-08 | 青岛理工大学 | Novel energy-absorbing vibration-reducing deep sea wind power generation floating type semi-submersible platform |
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