CN114738189A - Novel floating type offshore wind wave comprehensive utilization system - Google Patents
Novel floating type offshore wind wave comprehensive utilization system Download PDFInfo
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- CN114738189A CN114738189A CN202210325998.7A CN202210325998A CN114738189A CN 114738189 A CN114738189 A CN 114738189A CN 202210325998 A CN202210325998 A CN 202210325998A CN 114738189 A CN114738189 A CN 114738189A
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- power generation
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- 238000007667 floating Methods 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 238000010248 power generation Methods 0.000 claims abstract description 18
- 230000005611 electricity Effects 0.000 claims description 4
- 238000011084 recovery Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Classifications
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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
- 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
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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
- 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
- F03B13/141—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 with a static energy collector
- F03B13/142—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 with a static energy collector which creates an oscillating water column
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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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- 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
- F03D9/255—Wind motors characterised by the driven apparatus the apparatus being an electrical generator connected to electrical distribution networks; Arrangements therefor
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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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- 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
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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)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Structural Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Civil Engineering (AREA)
- Architecture (AREA)
- Wind Motors (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
The invention provides a novel floating offshore wind wave comprehensive utilization system, and relates to the offshore renewable energy utilization technology. Based on the concept of an unsupported semi-submersible floating wind generating set and an Oscillating Water Column (OWC) wave energy generator, a novel floating wind power generating system is designed. The integrated systems include offshore wind energy systems and oscillating water column wave energy systems. The novel floating type wind wave comprehensive power generation system converts the lifting motion of a water column into the in-and-out motion of air, and the air turbine generator converts the in-and-out motion into electric energy.
Description
Technical Field
The invention relates to the technology of offshore renewable energy utilization, in particular to a novel floating type wind and wave comprehensive power generation system. The invention relates to a comprehensive power generation system which integrates a wind energy device and an oscillating water column wave energy device based on a semi-submersible floating platform.
Background
Wind energy is one of the most promising renewable energy sources. Offshore wind energy has become a new development direction of world wind energy research and is valued by many countries. With the annual increase of the proportion of offshore wind energy in total energy consumption, the floating wind generator foundation is more and more emphasized. However, the commercialization of the wave energy power generation apparatus is limited due to its low energy conversion efficiency and high unit cost. Therefore, when a wind power plant is located, certain wind speed, strong wind conditions and good wave energy development potential are considered firstly. The offshore wind energy and wave energy resources are combined, the overall power generation capacity of an offshore wind farm and the efficiency of a single turbine can be improved, and the offshore wind energy and wave energy combined wind power generation system is an effective way for comprehensively utilizing ocean renewable energy sources.
Disclosure of Invention
In order to better utilize ocean wind energy and wave energy, the invention provides a floating wind energy and wave energy combined power generation device. A semi-floating platform is adopted, and a comprehensive wind energy and wave energy system is established in the ocean to form a comprehensive power generation system. The method aims to improve the utilization rate of the offshore floating infrastructure, reduce the total cost and improve the overall economy of the offshore wind farm. Reducing the cost of electricity will facilitate the application of wave energy. The invention has the following advantages:
the combination of offshore turbines and wave power generation can share offshore platforms, substations and transmission equipment. The total power output of the system is improved. Power generation capacity and efficient operating time increase, capital expenditure is also expected to decrease; the stability of the system is improved due to the symmetrical distribution of the wave energy devices along the circumference; the novel floating wind and wave integrated power generation system improves the effective utilization rate of a deep water area and reduces the construction cost and the maintenance cost. The wind power generation technology with high maturity in the prior art is fully utilized. The system will promote commercialization of wave energy devices.
Based on the concept of an unsupported semi-submersible floating wind generating set and an Oscillating Water Column (OWC) wave energy generator, a novel floating wind power generating system is designed. The integrated systems include offshore wind energy systems and oscillating water column wave energy systems. The offshore wind energy system of the present invention comprises an offshore wind turbine No. 1, No. 2 tower and an unsupported semi-submersible floating platform. The floating platform comprises three upright posts, a buoy and a mooring cable.
The OWC wave energy system is positioned outside the upright post and fixed on the buoy. The OWC wave energy system consists of a chamber cover, a water inlet and an air turbine generator. The chamber cover is an L-shaped cylinder, and the bottom of the chamber cover is fixed on the buoy. An air chamber is formed between the chamber lid and the post. The water inlet is arranged at the connecting end of the chamber cover and the buoy. At the other end of the chamber cover, there is an outlet for mounting an air turbine generator. When the device is used, it is submerged in water and the wave forces cause the water column within the chamber to rise and fall, driving air in and out (inhalation and exhalation) of the chamber, typically to generate electricity by an air turbine generator.
In a novel floating wind and wave integrated power generation system, an OWC wave energy generator is integrated on each upright post of an unsupported semi-submersible platform. Each integrated system comprises three wave energy devices, so that the utilization efficiency of wave energy can be effectively improved, and the cost is reduced.
Drawings
FIG. 1 is a schematic structural diagram of a novel floating type wind wave integrated power generation system
Figure 2 is a schematic diagram of an oscillating water column wave power assembly
Fig. 3 shows the working principle of the OWC wave power device.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.
Referring to fig. 1, in one embodiment of the present invention, as shown in fig. 1, a wind turbine 1 is connected to the seabed through a semi-submersible platform consisting of a buoy 4, a column 6 and anchor mooring lines 3 via a tower 2. The wind turbine 1 will rotate relative to its main shaft, which is connected to rotor blades driven by the air flow, which converts wind energy into mechanical energy of the shaft. Through the gearbox, the generator converts the mechanical energy of the high speed shaft into electrical energy. On the other hand, the wave forces drive the water column in the chamber 9 up and down, driving air in and out of the chamber 9, typically an air turbine generator 10. The bi-directional air turbine generator 10 will convert mechanical energy from the rise and fall of the water column into electrical energy.
Under the influence of wind forces, the electrical energy generated by the wind turbines is transmitted via a transmission system to an electrical grid and finally to end users on land. The hatch 7 of the OWC wave energy devices 5 is connected to the pontoons 4 at the bottom of the semi-submersible platform. Water enters the chamber 9 through the inlet 8 causing the water column to rise and fall within the chamber 9. The movement of the water column pushes the air in the chamber 9 into and out of the air outlet at the top of the air chamber, so as to drive the air turbine generator 10 to generate electricity.
Claims (5)
1. The utility model provides a novel floating offshore storm comprehensive utilization system which characterized in that: the device comprises an offshore wind power generation device and an oscillating water column wave energy device; the offshore wind power generation device comprises an offshore wind turbine, a tower and a semi-submersible floating platform without struts, wherein the platform consists of three struts, a buoyancy tank and an anchor chain.
2. The novel floating offshore wind and wave comprehensive utilization system is characterized in that the OWC wave energy system is located outside the upright post and fixed on the buoy; the OWC wave energy system consists of a chamber cover, a water inlet and an air turbine generator; the chamber cover is an L-shaped cylinder, and the bottom of the chamber cover is fixed on the buoy; the air chamber is formed between the chamber cover and the column; the water inlet is arranged at the connecting end of the chamber cover and the buoy; the other end of the chamber cover is provided with an outlet for installing an air turbine generator; when the device is used, the whole device is immersed in water, the wave force causes the water column in the chamber to rise and fall, air is driven to enter and exit the chamber, and electricity is generated through the air turbine generator.
3. The novel floating offshore storm comprehensive utilization system of claim 1, wherein said air chamber uses a conical outlet to increase the pressure of the air stream; the air turbine generator can be propelled faster to improve the efficiency of power generation.
4. The novel floating offshore storm comprehensive utilization system of claim 1, wherein said water inlet is arranged towards the dominant direction of the waves to improve the efficiency of power generation.
5. The novel floating offshore storm surge recovery system of claim 1 wherein said air turbine generator utilizes a bi-directional generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210325998.7A CN114738189A (en) | 2022-03-30 | 2022-03-30 | Novel floating type offshore wind wave comprehensive utilization system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210325998.7A CN114738189A (en) | 2022-03-30 | 2022-03-30 | Novel floating type offshore wind wave comprehensive utilization system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114738189A true CN114738189A (en) | 2022-07-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210325998.7A Pending CN114738189A (en) | 2022-03-30 | 2022-03-30 | Novel floating type offshore wind wave comprehensive utilization system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114738189A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2022
- 2022-03-30 CN CN202210325998.7A patent/CN114738189A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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