CN113586318A - Single-column floating type offshore comprehensive power platform - Google Patents

Single-column floating type offshore comprehensive power platform Download PDF

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Publication number
CN113586318A
CN113586318A CN202111033195.6A CN202111033195A CN113586318A CN 113586318 A CN113586318 A CN 113586318A CN 202111033195 A CN202111033195 A CN 202111033195A CN 113586318 A CN113586318 A CN 113586318A
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CN
China
Prior art keywords
column
power generation
floater
offshore
air pipe
Prior art date
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Pending
Application number
CN202111033195.6A
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Chinese (zh)
Inventor
杨剑
田仲伟
李晴
郑建涛
王绍民
郑建敏
魏守成
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.)
Huaneng Fujian Energy Development Co ltd
Huaneng Clean Energy Research Institute
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Huaneng Fujian Energy Development Co ltd
Huaneng Clean Energy Research Institute
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Application filed by Huaneng Fujian Energy Development Co ltd, Huaneng Clean Energy Research Institute filed Critical Huaneng Fujian Energy Development Co ltd
Priority to CN202111033195.6A priority Critical patent/CN113586318A/en
Publication of CN113586318A publication Critical patent/CN113586318A/en
Pending legal-status Critical Current

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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
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F03B13/12—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
    • F03B13/14—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy
    • 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
    • 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
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
    • F03B11/04—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator for diminishing cavitation or vibration, e.g. balancing
    • 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
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F03B13/12—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
    • F03B13/14—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy
    • F03B13/24—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy to produce a flow of air, e.g. to drive an air turbine
    • 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
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B15/00—Controlling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
    • F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
    • F03D13/25—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors specially adapted for offshore installation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D7/00—Controlling wind motors 
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/008—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations the wind motor being combined with water energy converters, e.g. a water turbine
    • 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
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/20—Wind motors characterised by the driven apparatus
    • F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
    • B63B2035/4433—Floating structures carrying electric power plants
    • B63B2035/446—Floating structures carrying electric power plants for converting wind energy into electric energy
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • 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
    • B63B2035/4466—Floating structures carrying electric power plants for converting water energy into electric energy, e.g. from tidal flows, waves or currents
    • 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
    • Y02E10/20—Hydro 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
    • Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/727—Offshore wind turbines

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Sustainable Development (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Energy (AREA)
  • Power Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Wind Motors (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)

Abstract

The invention provides a single-column floating type offshore comprehensive power platform, which comprises a single-column float; the single-column type floater is connected with a tower drum of the offshore power generation fan, and a control system is arranged in the tower drum; the single-column floater is provided with an upper part and a lower part which are connected in a hollow way, the upper part is hollow so as to be provided with a wave energy power generation system, and the lower part is externally connected with a mooring system and a balance system; the balance system comprises a plurality of fins and a plurality of anti-rolling fins, and the fins and the anti-rolling fins are uniformly arranged on the outer wall of the lower part of the single-column floater; the wing panel is vertically hinged with the outer wall of the lower part; the stabilizer is located the mono-column float outside, every the stabilizer articulates there is the connecting rod, and the connecting rod passes through float side trompil and gets into inside the part under the mono-column float, and the connecting rod is articulated with a disc, and the disc rotates around the centre of a circle. Because the oscillating water column type wave energy power generation device has a damping effect, the stability of the invention is stronger than that of a common single-column floating wind power platform in the same wave height environment.

Description

Single-column floating type offshore comprehensive power platform
Technical Field
The invention relates to the technical field of offshore wind power and ocean wave power generation, in particular to a single-column floating type offshore comprehensive power platform.
Background
The site selection of the offshore wind farm is in a wind resource concentration sea area, the wind speed is high, and the offshore wind farm is also a wave energy resource enrichment place because waves are from wind power. The development of offshore wind power is combined with the utilization of wave energy resources, so that the power generation capacity of an offshore power plant can be effectively expanded, and the overall economy of the offshore power plant is improved.
By adopting the offshore wind power device with the floating foundation, the wind wave resources in deeper sea areas can be utilized. The single-column floating type offshore wind power device is simple in structure and easy to manufacture and maintain, but the floating foundation is easily influenced by sea waves, and the stability of the floating foundation needs to be enhanced by adopting design and engineering measures. Secondly, compared with other floating offshore wind power platforms, the single-column floating type fan does not have a platform structure to balance the moment of wave impact, is in principle like a tumbler, is not easy to be overturned by wind waves, but has large swinging amplitude and is more unstable.
Disclosure of Invention
In order to improve the stability and the comprehensive utilization efficiency of the single-column floating offshore wind turbine, the invention aims to provide the single-column floating offshore comprehensive power platform. And because the oscillating water column type wave energy power generation device has a damping effect, the stability of the invention is stronger than that of a common single-column floating wind power platform under the same wave height environment.
In order to achieve the purpose, the invention adopts the following technical scheme:
a single-column floating type offshore comprehensive power device comprises an offshore power generation fan, a single-column floater, a wave energy power generation system, an external mooring system, a control system and a balance system;
the single-column floater is connected with a tower drum of the offshore power generation fan, and the control system is arranged in the tower drum; the control system is electrically connected with the wave power generation system and the offshore power generation fan; the single-column floater is provided with an upper part and a lower part which are connected in a hollow way, the upper part is hollow so as to be provided with the wave energy power generation system, and the lower part is externally connected with the mooring system and the balance system;
the balance system comprises a plurality of fins and a plurality of fin stabilizers, and the fins and the fin stabilizers are uniformly arranged on the outer wall of the lower part of the single-column floater; the wing pieces are vertically hinged with the outer wall of the lower part;
every stabilizer fin articulates there is the connecting rod, and the connecting rod passes through float side trompil and gets into the part inside under the mono-column float, and the connecting rod is articulated with a disc, and the disc rotates around the centre of a circle.
Optionally, the fin stabilizer is a rectangular sheet, the vertical section of the fin stabilizer is oval, and the main body surface of the fin stabilizer is axially perpendicular to the single-column float.
Optionally, a plurality of the fin stabilizers are located on the same horizontal plane outside the mono-column float.
Optionally, the fin is of a quadrilateral structure, one side of the quadrilateral structure is hinged to the outer wall of the lower portion of the single-column float, and the minimum acute angle of the quadrilateral structure is arranged on the outer side of the lower end.
Optionally, the wave energy power generation device is an oscillating wave energy power generation device.
Optionally, the oscillating wave power generation device comprises a cavity, an air inlet and an air outlet, an upper air pipe, a lower air pipe, a one-way valve, a turbine and a generator; the cavity is divided into upper and lower two parts by the surface of water, and the cavity begins upwards to narrow gradually from the middle part, and cavity top and business turn over gas port intercommunication, business turn over gas port respectively with last trachea, lower trachea intercommunication, go up and be equipped with the turbine between trachea and the lower trachea, go up trachea and lower trachea gas respectively reciprocating motion conversion in order to drive the turbine syntropy and rotate, go up the trachea and all be provided with check valve with lower trachea, the turbine passes through the pivot and connects the generator.
Optionally, the control system includes a computer, a control board card, a turbine, a generator, an inverter and a power grid, the computer controls the turbine and the generator through the control board card, and the current of the generator is connected to the power grid through the inverter and the power grid.
Optionally, the single-column float is a cylindrical float.
Optionally, the fin is disposed between the fin and an external mooring system.
Compared with the prior art, the invention has the following advantages:
the offshore wind power generation device is combined with the wave power generation device, the bottom end of the tower drum of the wind turbine is connected with the floater, and the floater is not only a floating type offshore wind turbine foundation but also a container of the wave power generation device, so that the overall construction cost is lower than that required by the independent construction of the two power generation devices by the combined design, and the construction cost is reduced. Particularly, the balance system is combined with the power generation system, the oscillating water column type wave power generation device does damping motion under the action of sea waves, the impact of the sea waves on the device can be absorbed, and under the same wave height, the offshore platform with the device is more stable than a common single-column floating offshore platform.
Furthermore, compared with the traditional wave energy power generation device, the oscillating water column type wave energy power generation device is very simple in structure, the main equipment is placed in a tower above the sea surface, the requirements on sealing and corrosion resistance are low, and the maintenance is convenient; the wave energy power generation device has smaller total power, but can meet the power consumption requirement of the device. Therefore, the later operation and maintenance cost and the electricity utilization cost are reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic structural view of the upper part of a single-column floater.
Fig. 3 is a schematic structural diagram of the lower part of a single-column floater.
Fig. 4 is a schematic structural diagram of an oscillating water column type wave energy power generation device.
Fig. 5 is a schematic diagram of an oscillating water column type wave energy power generation process.
Fig. 6 is a schematic diagram of a control system of the single-column floating type offshore integrated power platform.
FIG. 7 is a front view of a fin stabilizer;
FIG. 8 is a side view of a fin stabilizer;
fig. 9 is a schematic view showing a connection state of the damper.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 3, the single-column floating type offshore integrated power platform comprises an offshore wind turbine 1, a single-column floater 2, a wave power generation system 3, a mooring device 4, a control system 5 and a balance system 6. The offshore wind turbine 1 is connected with the single-column floater 2, the offshore wind turbine is arranged at the upper end of the platform, a tower of the wind turbine 1 is concentric with the single-column floater 2, and necessary facilities such as a wave energy power generation system 3 and a control system 5 can be arranged in the bottom of the tower.
The single-column floater 2 is a cylinder and is divided into an upper part and a lower part which are connected in a hollow manner, seawater at the hollow part can freely enter and exit, the lower half part of the floater is used for providing buoyancy and maintaining balance, the upper half part of the floater is hollow and can be used as a cavity of the oscillating water column type wave energy power generation device, and a mooring system 4 is arranged outside the single-column floater 2 and connected with the seabed.
In order to adapt to the working conditions of the single-column platform, the wave energy power generation system 3 adopts an oscillating water column principle, sea waves are utilized to drive the water level in the cavity to vibrate up and down, when the single-column floater 2 floats on the sea, the still water level is arranged at the middle section of the upper half part of the floater 2, waves can excite the water level to vibrate up and down to change constantly, the changing water level can force air in the cavity 3-1 to reciprocate, and the air blows the turbine 3-6 to drive the wave energy power generator 3-7 to generate power. The electricity generated by wind power and wave energy can be stored by energy storage equipment in the device, and can also be sent to a power grid together.
Referring to fig. 4 and 5, the single-column floating type offshore integrated power platform comprises an offshore wind power plant formed by connecting an offshore wind turbine 1 and a single-column floater 2. The single-column float 2 consists of an upper part and a lower part.
Referring to fig. 4, the oscillating water column type wave energy power generation device 3 comprises a cavity 3-1, an air inlet and an air outlet 3-2, an upper air pipe 3-3, a lower air pipe 3-4, a one-way valve 3-5, a turbine 3-6 and a generator 3-7. The interior of the floater 2 is provided with a concentric cylindrical cavity 3-1, one part of the cavity 3-1 is arranged on the water surface, the other part is arranged below the water surface, and the top end of the cavity is provided with an air inlet and outlet 3-2. The air inlet and outlet 3-2 is externally connected with an air pipe, the valve 3-5 in the air pipe can only be opened in a one-way mode, the air at the upper end is only allowed to flow from left to right, and the air at the lower end is only allowed to flow from right to left. When the gas flows, the turbine 3-6 can be driven to rotate, so that the generator 3-7 is driven to rotate to generate power. The wave can excite the water surface inside the cavity 3-1 to oscillate up and down along with the wave, when the water surface moves upwards, the gas above the cavity 3-1 is extruded by the water surface, is blown out from the gas inlet/outlet 3-2, and can only flow from the upper end gas pipe under the limitation of the valve 3-5; when the water surface moves downwards, the air pressure above the cavity 3-1 is reduced, external air is blown into the air inlet and outlet 3-2 through the lower pipeline under the action of atmospheric pressure, and can only flow from the lower end air pipe under the limitation of the valve 3-5. That is, the reciprocating motion of the air flow is converted into the unidirectional rotation of the turbine 3-6, so that the turbine 3-6 keeps rotating in the same direction no matter the air is fed or discharged, and the continuous same-direction operation of the generator 3-7 is ensured.
The cavity 3-1 is divided into an upper part and a lower part by the water surface, the cavity 3-1 gradually narrows from the middle part upwards to improve the gas flow rate, and the gas inlet and outlet 3-2 at the top end is connected with a gas pipe. A turbine 3-6 is arranged between the upper air pipe and the lower air pipe, and the gas in the air pipes can blow the turbine 3-6 to rotate. The turbine 3-6 is connected with the generator 3-7 through a rotating shaft.
The oscillating water column type wave energy combined power generation device adopts a design mode that an upper air pipe and a lower air pipe are matched with one-way valves 3-5, and the reciprocating motion of air flow is converted into the same-direction rotation of turbines 3-6. The energy of the airflow is fully utilized, and the structure is simple.
Referring to fig. 5, the control system 5 may control the turbines 3-6 and generators 3-7 to be disconnected when power generation by wave energy is temporarily not required, and then control the turbines 3-6 and generators 3-7 to be connected when the operation of the wave energy part is required.
Referring to fig. 6, the control system 5 may be installed inside the wind power tower and is composed of a computer and an inverter, the computer sends an instruction to the control board card through an internally installed control program, and the board card can control the opening and closing of the connection between the turbine 3-6 and the generator 3-7 after receiving the instruction.
Specifically, the control system 5 comprises a computer 10, a control board 11, a turbine 12 (turbines 3 to 6), a generator 13 (generators 3 to 7), an inverter 14 and a power grid 15, wherein the computer 10 controls the turbine 12 and the generator 13 through the control board 11, and the current of the generator 13 is connected to the power grid through the inverter 14 and the power grid 15.
The function implementation means of the control program is largely applied to automatic control, the requirements can be met by slightly changing the mature products, and the control board card can adopt the mature products similar to NI company with little cost. The inverter can directly utilize the necessary power equipment of the wind motor grid connection, such as an electric control cabinet, and does not need to be constructed in a large quantity.
The generated electric energy is converted into direct current through an inverter under the coordination of the control system 5 and then is transmitted. Or may be stored by the energy storage system.
Referring to fig. 1, the mono-column buoy 2 has on its exterior the mooring line of the mooring system 4 anchoring the entire installation.
Referring to fig. 3 and 7 to 9, the balance system 6, comprising fins 6-6 and stabilizer fins 6-1, is mounted around the lower end float to reduce rolling of the entire platform and maintain and suitably enhance pitching. The stability of platform can be strengthened in the design like this, increases wave energy power generation's oscillation amplitude, improves the generated power.
The single-column type floater 2 is a cylindrical floater, so that the balance is good, the stability is high, and the weight is light. The oscillating wave power generation device in the floater 2 has a simple structure, and main working equipment is positioned on the sea surface, is sealed, and has low corrosion prevention cost.
The control system 5 can utilize the existing automatic control program and the mature regulation and power transmission system in wind power to carry out inversion regulation on the power generated by the device, does not need to add a large amount of equipment, and is easy to construct. The control system 5 can command the wave energy power generation device to start and stop at any time.
The wave power generation device 3 provides damping for the whole platform, so that the shaking amplitude of the platform is reduced, and the stability is improved. The lower end floater adopts a fin stabilizer 6-1 and a wing panel 6-6 to enhance the stability of the platform. The fin stabilizer 6-1 adopts a design simulating a fish fin, and reduces the swing amplitude of the whole platform through a damper 6-5.
The fin surface of the anti-rolling fin 6-1 is positioned outside the floater, the shape of the anti-rolling fin is similar to a shark fin, the anti-rolling fin swings in the sea, one side close to the floater is provided with a connecting rod 6-2, the connecting rod 6-2 enters the floater at the lower end through an opening 6-3 on the side surface of the floater and is connected with a disc 6-4, and a damper 6-5 is connected with the disc 6-4 and the inner wall of the floater.
Preferably, the fin 6-1 is a rectangular sheet with an oval vertical cross-section (as shown in fig. 7). The main body surface of the anti-rolling fin 6-1 is axially vertical to the single-column type floater 2.
Preferably, a plurality of the fin stabilizers 6-1 are positioned on the same horizontal plane outside the mono-column type floater 2, each fin stabilizer 6-1 is connected with one disc 6-4 through a damper 6-5, and the discs 6-4 rotate around the respective circle center inside the mono-column type floater 2. When the disc is acted by external force, the fin stabilizer 6-1 drives the damper 6-5, and the damper drives the disc 6-4 to rotate, so that the external force action is eliminated. And realizing system arrangement balance.
Preferably, the wing 6-6 is a quadrilateral structure, one side of the quadrilateral structure is hinged with the outer wall of the lower part of the mono-column type floater 2, and the minimum acute angle of the quadrilateral structure is arranged outside the lower end.
When the fin stabilizer 6-1 swings, the disc 6-4 rotates along with the fin stabilizer, the push-pull damper 6-5 continuously performs reciprocating damping motion, and in the motion process, the damper 6-5 consumes mechanical energy, so that the effect of maintaining the platform stable is achieved.
The invention has the following advantages:
1. the offshore wind power generation device and the wave power generation device are combined to share the single-column floating offshore platform, so that the overall power generation power is high, and the generated energy and the effective working hours are increased.
2. Offshore wind power is combined with the wave power generation device, the bottom end of the wind turbine tower is connected with the floater, the floater is not only a floating type offshore wind turbine foundation but also a wave power generation device container, and by means of the combined design, the overall construction cost is less than that required by independent construction of the two power generation devices, and the construction cost is reduced.
3. Compared with the traditional wave energy power generation device, the oscillating water column type wave energy power generation device has a very simple structure, the main equipment is placed in a tower above the sea surface, the requirements on sealing and corrosion resistance are low, and the maintenance is convenient; the wave energy power generation device has smaller total power, but can meet the power consumption requirement of the device. Therefore, the later operation and maintenance cost and the electricity utilization cost are reduced.
4. Compared with an offshore wind turbine or a wave energy power generation device with a fixed foundation, the offshore comprehensive power platform with the floating foundation has a wider application range, and can fully utilize offshore wind energy and wave energy resources in the near sea and the far sea.
5. The balance system 6 is combined with a power generation system, the oscillating water column type wave power generation device does damping motion under the action of sea waves, the impact of the sea waves on the device can be absorbed, and under the same wave height, an offshore platform with the device is more stable than a common single-column floating offshore platform.
All articles and references disclosed above, including patent applications and publications, are hereby incorporated by reference for all purposes. The term "consisting essentially of …" describing a combination shall include the identified element, ingredient, component or step as well as other elements, ingredients, components or steps that do not materially affect the basic novel characteristics of the combination. The use of the terms "comprising" or "including" to describe combinations of elements, components, or steps herein also contemplates embodiments that consist essentially of such elements, components, or steps. By using the term "may" herein, it is intended to indicate that any of the described attributes that "may" include are optional.
A plurality of elements, components, parts or steps can be provided by a single integrated element, component, part or step. Alternatively, a single integrated element, component, part or step may be divided into separate plural elements, components, parts or steps. The disclosure of "a" or "an" to describe an element, ingredient, component or step is not intended to foreclose other elements, ingredients, components or steps.
It is to be understood that the above description is intended to be illustrative, and not restrictive. Many embodiments and many applications other than the examples provided would be apparent to those of skill in the art upon reading the above description. The scope of the present teachings should, therefore, be determined not with reference to the above description, but should instead be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled. The disclosures of all articles and references, including patent applications and publications, are hereby incorporated by reference for all purposes. The omission in the foregoing claims of any aspect of subject matter that is disclosed herein is not intended to forego such subject matter, nor should the applicant consider that such subject matter is not considered part of the disclosed subject matter.

Claims (9)

1. A single-column floating type offshore comprehensive power platform is characterized by comprising an offshore power generation fan (1), a single-column floater (2), a wave power generation system (3), an external mooring system (4), a control system (5) and a balance system (6);
the single-column floater (2) is connected with a tower drum of the offshore power generation fan (1), and the control system (5) is arranged in the tower drum; the control system (5) is electrically connected with the wave power generation system (3) and the offshore power generation fan (1); the single-column floater (2) is provided with an upper part and a lower part which are connected in a hollow manner, the upper part is hollow so as to be provided with the wave energy power generation system (3), and the lower part is externally connected with a mooring system (4) and a balance system (6);
the balance system (6) comprises a plurality of fins (6-6) and a plurality of anti-rolling fins (6-1), and the fins (6-6) and the anti-rolling fins (6-1) are uniformly arranged on the outer wall of the lower part of the mono-column float (2); the wing pieces (6-6) are vertically hinged with the outer wall of the lower part;
each fin stabilizer (6-1) is hinged with a connecting rod (6-2), the connecting rod (6-2) enters the inner part of the lower part of the single-column type floater (2) through an opening (6-3) in the side surface of the floater, the connecting rod (6-2) is hinged with a disc (6-4), and the disc (6-4) rotates around the circle center.
2. The single-column floating type offshore integrated power platform as claimed in claim 1, wherein the fin stabilizer (6-1) is a rectangular sheet material, the vertical section of the fin stabilizer is an ellipse, and the main body surface of the fin stabilizer (6-1) is axially perpendicular to the single-column float (2).
3. A mono-column floating offshore integrated power platform according to claim 1, characterized in that several of the stabilizer fins (6-1) are located on the same level outside the mono-column float (2).
4. The single-column floating type offshore integrated power platform as claimed in claim 1, wherein the wing pieces (6-6) are of a quadrilateral structure, one side of the quadrilateral structure is hinged with the outer wall of the lower part of the single-column floater (2), and the smallest acute angle of the quadrilateral structure is arranged outside the lower end.
5. The single-column floating offshore integrated power platform according to claim 1, wherein the wave energy power generation device (3) is an oscillating wave energy power generation device.
6. The single-column floating type offshore integrated power platform according to claim 1, wherein the oscillating wave power generation device comprises a cavity (3-1), an air inlet and outlet (3-2), an upper air pipe (3-3), a lower air pipe (3-4), a one-way valve (3-5), a turbine (3-6) and a generator (3-7); the cavity (3-1) is divided into an upper part and a lower part by the water surface, the cavity (3-1) is gradually narrowed from the middle part upwards, the top end of the cavity (3-1) is communicated with the air inlet and outlet (3-2), the air inlet and outlet (3-2) is respectively communicated with the upper air pipe (3-3) and the lower air pipe (3-4), a turbine (3-6) is arranged between the upper air pipe (3-3) and the lower air pipe (3-4), the gas in the upper air pipe (3-3) and the lower air pipe (3-4) respectively carries out reciprocating motion conversion to drive the turbine (3-6) to rotate in the same direction, the upper air pipe (3-3) and the lower air pipe (3-4) are respectively provided with a one-way valve (3-5), and the turbine (3-6) is connected with a generator (3-7) through a rotating shaft.
7. The single column floating offshore integrated power platform according to claim 6, wherein: the control system (5) comprises a computer (10), a control board card (11), turbines (3-6), generators (3-7), an inverter (14) and a power grid (15), wherein the computer (10) controls the turbines (3-6) and the generators (3-7) through the control board card (11), and the current of the generator (13) is connected to the power grid through the inverter (14) and the power grid (15).
8. The single column floating offshore integrated power platform of claim 1, wherein: the single-column type floater (2) is a cylindrical floater.
9. The single column floating offshore integrated power platform of claim 1, wherein: the fins (6-6) are arranged between the fin (6-1) and the external mooring system (4).
CN202111033195.6A 2021-09-03 2021-09-03 Single-column floating type offshore comprehensive power platform Pending CN113586318A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114396352A (en) * 2022-01-18 2022-04-26 上海大学 Nano friction generator utilizing wave motion
CN115419544A (en) * 2022-08-05 2022-12-02 山东水发新能源发展有限公司 Device and method for offshore wind generating set base combined with float type hydrodynamic power generation
CN115853716A (en) * 2023-02-02 2023-03-28 大连理工大学 Offshore floating type power generation device integrated with motion suppression system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114396352A (en) * 2022-01-18 2022-04-26 上海大学 Nano friction generator utilizing wave motion
CN115419544A (en) * 2022-08-05 2022-12-02 山东水发新能源发展有限公司 Device and method for offshore wind generating set base combined with float type hydrodynamic power generation
CN115853716A (en) * 2023-02-02 2023-03-28 大连理工大学 Offshore floating type power generation device integrated with motion suppression system

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