CN114542390B - Coaxial counter-rotating vertical axis wind turbine generator set using bionic blades - Google Patents
Coaxial counter-rotating vertical axis wind turbine generator set using bionic blades Download PDFInfo
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- CN114542390B CN114542390B CN202210194747.XA CN202210194747A CN114542390B CN 114542390 B CN114542390 B CN 114542390B CN 202210194747 A CN202210194747 A CN 202210194747A CN 114542390 B CN114542390 B CN 114542390B
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- 239000011664 nicotinic acid Substances 0.000 title claims abstract description 65
- 241000283153 Cetacea Species 0.000 claims abstract description 5
- 210000000006 pectoral fin Anatomy 0.000 claims abstract description 5
- 238000004804 winding Methods 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 2
- 241001264313 Semioptera wallacii Species 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000010248 power generation Methods 0.000 abstract description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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
- F03D9/20—Wind motors characterised by the driven apparatus
- F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
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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
- F03D15/00—Transmission of mechanical power
- F03D15/20—Gearless transmission, i.e. direct-drive
-
- 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
- F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor
- F03D3/005—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor the axis being vertical
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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
- F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor
- F03D3/02—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor having a plurality of rotors
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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
- F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor
- F03D3/06—Rotors
- F03D3/061—Rotors characterised by their aerodynamic shape, e.g. aerofoil profiles
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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
- F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor
- F03D3/06—Rotors
- F03D3/062—Rotors characterised by their construction elements
-
- 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
- F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor
- F03D3/06—Rotors
- F03D3/062—Rotors characterised by their construction elements
- F03D3/064—Fixing wind engaging parts to rest of rotor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K16/00—Machines with more than one rotor or stator
- H02K16/005—Machines with only rotors, e.g. counter-rotating rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
- H02K7/1807—Rotary generators
- H02K7/1823—Rotary generators structurally associated with turbines or similar engines
- H02K7/183—Rotary generators structurally associated with turbines or similar engines wherein the turbine is a wind turbine
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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
- F05B2240/00—Components
- F05B2240/20—Rotors
- F05B2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
- F05B2240/301—Cross-section characteristics
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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
- Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Wind Motors (AREA)
Abstract
The invention provides a coaxial counter-rotating vertical axis wind turbine generator set utilizing bionic blades, which comprises a fixed base, a fixed main shaft, an upper fan blade rotor, a lower fan blade rotor and a disc type generator, wherein the upper fan blade rotor, the lower fan blade rotor and the disc type generator are sequentially arranged on the fixed main shaft from top to bottom along the vertical direction, the upper and lower coaxial bionic blades are all made of NACA0021 as basic wing profiles, the front edge of a whale pectoral fin wing profile is simulated to be in a convex fluctuation shape by sine waves, the upper and lower coaxial bionic blades are respectively connected with the generator rotor and a stator, the upper and lower coaxial bionic blades are enabled to rotate along opposite directions, the relative rotation speed of the generator stator and the rotor is improved, the advantage of good aerodynamic performance of the bionic blades is fully utilized, and the power generation efficiency is effectively improved.
Description
Technical Field
The invention belongs to the technical field of wind driven generators, relates to a vertical axis wind driven generator set, and in particular relates to a coaxial counter-rotating vertical axis wind driven generator set utilizing bionic blades.
Background
In the process of converting the world energy structure into a renewable and sustainable development system, wind energy is developed and utilized in a large scale as renewable clean energy with wide distribution, and plays a non-negligible role in solving the energy crisis and environmental protection problems.
The wind power generator can be divided into a horizontal axis wind power generator and a vertical axis wind power generator according to the rotation direction. Compared with a horizontal-axis wind turbine, the vertical-axis wind turbine has the advantages that: the space and the area occupied by the impeller are small, a yaw system is not needed, the tower is simple to manufacture, and the unit is convenient to maintain. However, vertical axis wind turbines also have disadvantages, 1: compared with a horizontal-axis wind turbine, the wind energy utilization rate of the vertical-axis wind turbine is lower; 2, because the requirements on wind speed change and load change are severe, the aerodynamic performance is poor when the airflow is unstable and the turbulence is large, and the high-efficiency operation is difficult.
Therefore, a wind driven generator is needed to solve the problems of low wind energy utilization rate and poor aerodynamic performance on the premise of keeping the advantages of the vertical axis wind driven generator.
Disclosure of Invention
In order to solve the problems, the invention provides the coaxial counter-rotating vertical axis wind turbine generator system utilizing the bionic blades, wherein the upper and lower coaxial bionic blades are respectively connected with the rotor and the stator of the generator, and the upper and lower coaxial bionic blades rotate in opposite directions, so that the relative rotation speed of the stator and the rotor of the generator is improved, the advantage of good aerodynamic performance of the bionic blades is fully utilized, and the power generation efficiency is effectively improved.
The invention adopts the technical proposal for solving the technical problems that:
The utility model provides an utilize coaxial counter-rotating vertical axis wind generating set of bionic blade, includes unable adjustment base, fixed main shaft, upper blade rotor, lower blade rotor, disk generator, fixed main shaft is along vertical direction fixed setting is in on the unable adjustment base, upper blade rotor, lower blade rotor, disk generator are arranged in proper order along vertical direction from top to bottom on the fixed main shaft, upper blade rotor includes upper blade axle and through blade support fixed connection on the upper blade axle and along a plurality of last bionic blade of circumference evenly distributed, lower blade rotor includes lower blade axle and through blade support fixed connection on the lower blade axle and along a plurality of lower bionic blade of circumference evenly distributed, disk generator includes disk generator rotor part, disk generator stator part, its characterized in that,
The upper fan blade shaft and the lower fan blade shaft are hollow cylinder bodies sleeved on the fixed main shaft, the lower end of the upper fan blade shaft is fixedly connected with one of the disc-type generator rotor part and the disc-type generator stator part, the upper end of the lower fan blade shaft is fixedly connected with the other of the disc-type generator rotor part and the disc-type generator stator part,
The upper end of the upper fan blade shaft is rotatably arranged on the fixed main shaft through an upper fan blade bearing and the lower end of the upper fan blade shaft is rotatably arranged on the fixed main shaft through a disk generator rotor bearing or a disk generator stator bearing,
The upper end of the lower fan blade shaft is rotatably arranged on the fixed main shaft through a disc type generator stator bearing or a disc type generator rotor bearing, the lower end of the lower fan blade shaft is rotatably arranged on the fixed main shaft through a lower fan blade bearing,
The upper bionic fan blades and the lower bionic fan blades in the upper fan blade rotor and the lower fan blade rotor are designed to rotate in opposite directions under the action of wind force.
The coaxial counter-rotating vertical axis wind generating set utilizing the bionic blades provided by the invention also has the characteristics that the upper bionic blade and the lower bionic blade simulate the convex fluctuation shape of the front edge of the whale pectoral fin airfoil by sine waves, the convex is outward expansion type, and the trough is standard airfoil. The front edge protrusion shape formula of the bionic fan blade is as follows: Where A is the leading edge amplitude, ω is the angular velocity, For the initial phase, k is offset. Further, in the upper bionic fan blade and the lower bionic fan blade, the ratio of the blade front edge amplitude A to the airfoil chord length c is 0.015-0.1, and the ratio of the wavelength lambda to the airfoil chord length c is 0.25-0.75. Preferably, the primary phaseTaking 0 and offset distance k taking 0.
Preferably, the ratio of blade leading edge amplitude A to airfoil chord length c is 0.025 and the ratio of wavelength λ to airfoil chord length c is 0.75.
The coaxial counter-rotating vertical axis wind generating set utilizing the bionic blades, provided by the invention, has the characteristics that the rotor part of the disk generator comprises a rotor yoke (an upper end cover) and rotor magnetic poles arranged on the rotor yoke, and the rotor yoke is rotatably arranged on the fixed main shaft through a rotor bearing of the disk generator.
The coaxial counter-rotating vertical axis wind turbine generator set utilizing the bionic blades provided by the invention has the characteristics that the stator part of the disk type generator comprises a stator base (lower end cover), a stator iron core and a stator winding, wherein the stator iron core and the stator winding are arranged on the stator base, and the stator base is rotatably arranged on the fixed main shaft through the rotor bearing of the disk type generator.
The coaxial counter-rotating vertical axis wind generating set utilizing the bionic blades provided by the invention also has the characteristic that the top of the fixed main shaft is provided with a lightning rod.
The number of the upper bionic blades and the lower bionic blades of the coaxial counter-rotating vertical axis wind generating set provided by the invention is 2-6 respectively.
Compared with the prior art, the coaxial counter-rotating vertical axis wind turbine generator set utilizing the bionic blades has the following remarkable technical effects:
(1) According to the coaxial counter-rotating vertical axis wind turbine generator set utilizing the bionic blades, the pneumatic performance of the blades is optimized through the convex shape of the wing-shaped front edge of the whale pectoral fin, and the running efficiency and stability of the wind turbine generator set are further improved.
(2) According to the coaxial counter-rotating vertical axis wind turbine generator set utilizing the bionic blades, the upper and lower groups of coaxial bionic blades are respectively connected with the rotor and the stator of the generator, and the upper and lower groups of blades rotate in opposite directions, so that the relative rotation speed of the stator and the rotor of the generator is increased, and the power generation efficiency is effectively improved.
Drawings
FIG. 1 is a schematic diagram of a coaxial counter-rotating vertical axis wind turbine generator system using bionic blades according to the present invention;
FIG. 2 is a schematic view of the shape of a bionic blade according to the present invention;
FIG. 3 is a graph showing the relationship between the lift coefficient and the attack angle of a bionic blade with different amplitudes and wavelengths (the incoming wind speed is 12.5m/s, the Reynolds coefficient is 2.3X10 5, and the turbulence intensity is 16%);
FIG. 4 is a graph showing the relationship between the drag coefficient and the attack angle of the bionic blade with different amplitudes and wavelengths (the incoming wind speed is 12.5m/s, the Reynolds coefficient is 2.3X10 5, and the turbulence intensity is 16%);
FIG. 5 is a graph showing the relationship between lift-drag ratio and attack angle of bionic blades with different amplitudes and wavelengths (incoming wind speed is 12.5m/s, reynolds coefficient is 2.3X10 5, turbulence intensity is 16%);
Wherein: 1: a lightning rod; 2: the upper bionic fan blade; 3: a fan blade shaft is arranged; 4: a lower bionic fan blade; 5: a lower fan blade shaft; 6: fixing the main shaft; 7: a fixed base; 8: a disk generator rotor section; 8A: a rotor yoke (upper end cap); 8B: a rotor magnetic pole; 9: a disk generator stator section; 9A: a stator core; 9B: a stator winding; 9C: a stator base (lower end cap); 10: a fan blade bearing is arranged; 11: a disk generator rotor bearing; 12: a disk generator stator bearing; 13: and a lower fan blade bearing.
Detailed Description
In order to make the technical means, creation characteristics, achievement purposes and effects achieved by the present invention easy to understand, the following embodiments are specifically described with reference to the accompanying drawings.
In the description of the embodiments of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
The terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art in a specific case.
Fig. 1 is a schematic structural diagram of a coaxial counter-rotating vertical axis wind turbine generator system using bionic blades. As shown in fig. 1, the coaxial counter-rotating vertical axis wind generating set provided by the invention comprises a lightning rod 1, an upper bionic fan blade 2, an upper fan blade shaft 3, a lower bionic fan blade 4, a lower fan blade shaft 5, a fixed main shaft 6, a fixed base 7, a disk generator rotor part 8, a disk generator stator part 9, an upper fan blade bearing 10, a disk generator rotor bearing 11, a disk generator stator bearing 12 and a lower fan blade bearing 13. The upper bionic fan blade 2 is fixedly connected with the upper fan blade shaft 3 through a blade bracket, and meanwhile, the upper fan blade shaft 3 is fixed with the rotor part 8 of the disk generator. The lower bionic fan blade 4 is fixedly connected with the lower fan blade shaft 5 through a blade bracket, and meanwhile, the lower fan blade shaft 5 is fixed with the disc type generator stator part 9. The upper fan blade shaft 3 is connected with the fixed main shaft 6 through an upper fan blade bearing 10 and a disk generator rotor bearing 11. The lower fan blade shaft 5 is connected with the fixed main shaft 6 through a disk generator stator bearing 12 and a lower fan blade bearing 15. The disk generator rotor portion 8 is composed of a rotor yoke (upper end cover) 8A and rotor poles 8B. The disk generator stator part 9 is composed of a stator core 9A, a stator winding 9B, and a stator base (lower end cover) 9C.
As shown in fig. 2, the upper bionic fan blade 2 and the lower bionic fan blade 4 both adopt NACA0021 as basic airfoils, and simulate the convex fluctuation shape of the front edge of the whale pectoral fin airfoil with sine wave, the chord length c=0.265 m, the wavelength λ=0.75c, the span length l=1.2 m, the period number n=6, and the amplitude a=0.025 c.
When the embodiment works, the upper bionic fan blade 2 rotates clockwise (overlook direction), so that the upper fan blade shaft 3 and the disk generator rotor part 8 are driven to rotate in the same direction; the lower bionic fan blade 4 rotates anticlockwise (overlook direction), so that the lower fan blade shaft 5 and the disk generator stator part 9 are driven to rotate in the same direction. The disk generator rotor part 8 and the disk generator stator part 9 rotate reciprocally, and the magnetic field of the rotor magnetic poles cut by the stator windings generates current which is led out to a power grid or electric equipment through the fixed main shaft 6.
3-5, The stall aerodynamic performance of the blades can be optimized by the coaxial counter-rotating vertical axis wind turbine generator set utilizing the bionic blades; on the other hand, the relative rotation speed of the stator and the rotor of the generator can be increased, the power generation efficiency is improved, and the problem of low wind energy utilization rate in the prior art is solved.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention. The foregoing is merely a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present invention, and these modifications and variations should also be regarded as the scope of the invention.
Claims (5)
1. The utility model provides an utilize coaxial counter-rotating vertical axis wind generating set of bionic blade, includes unable adjustment base, fixed main shaft, upper blade rotor, lower blade rotor, disk generator, fixed main shaft is along vertical direction fixed setting is in on the unable adjustment base, upper blade rotor, lower blade rotor, disk generator are arranged in proper order along vertical direction from top to bottom on the fixed main shaft, upper blade rotor includes upper blade axle and through blade support fixed connection on the upper blade axle and along a plurality of last bionic blade of circumference evenly distributed, lower blade rotor includes lower blade axle and through blade support fixed connection on the lower blade axle and along a plurality of lower bionic blade of circumference evenly distributed, disk generator includes disk generator rotor part, disk generator stator part, its characterized in that,
The upper fan blade shaft and the lower fan blade shaft are hollow cylinder bodies sleeved on the fixed main shaft, the lower end of the upper fan blade shaft is fixedly connected with one of the disc-type generator rotor part and the disc-type generator stator part, the upper end of the lower fan blade shaft is fixedly connected with the other of the disc-type generator rotor part and the disc-type generator stator part,
The upper end of the upper fan blade shaft is rotatably arranged on the fixed main shaft through an upper fan blade bearing and the lower end of the upper fan blade shaft is rotatably arranged on the fixed main shaft through a disk generator rotor bearing or a disk generator stator bearing,
The upper end of the lower fan blade shaft is rotatably arranged on the fixed main shaft through a disc type generator stator bearing or a disc type generator rotor bearing, the lower end of the lower fan blade shaft is rotatably arranged on the fixed main shaft through a lower fan blade bearing,
The upper bionic fan blades and the lower bionic fan blades in the upper fan blade rotor and the lower fan blade rotor are designed to rotate in opposite directions under the action of wind force;
The upper bionic fan blade and the lower bionic fan blade simulate the protruding fluctuation shape of the front edge of a whale pectoral fin wing profile by sine waves, the protrusions are outward expansion type, the wave troughs are standard wing profiles, and the front edge protruding shape formula of the bionic fan blade is as follows: y=asin (ωx+Φ) +k, where a is the leading edge amplitude, ω is the angular velocity, Φ is the initial phase, and k is the offset; in the upper bionic fan blade and the lower bionic fan blade, the ratio of the front edge amplitude A of the fan blade to the chord length c of the wing profile is 0.015-0.1, and the ratio of the wavelength lambda to the chord length c of the wing profile is 0.25-0.75.
2. The coaxial counter-rotating vertical axis wind turbine generator system utilizing bionic blades of claim 1, wherein the disk generator rotor portion comprises a rotor yoke and rotor poles disposed on the rotor yoke, the rotor yoke being rotatably disposed on the stationary main shaft by the disk generator rotor bearing.
3. The coaxial counter-rotating vertical axis wind turbine generator system using bionic blades according to claim 2, wherein the disk generator stator part comprises a stator base, a stator core and a stator winding, wherein the stator core and the stator winding are arranged on the stator base, and the stator base is rotatably arranged on the fixed main shaft through a rotor bearing of the disk generator.
4. The coaxial counter-rotating vertical axis wind turbine generator system utilizing bionic blades according to claim 1, wherein a lightning rod is arranged at the top of the fixed main shaft.
5. The coaxial counter-rotating vertical axis wind turbine generator system utilizing bionic blades according to claim 1, wherein the number of the upper bionic blades and the lower bionic blades is 2-6 respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210194747.XA CN114542390B (en) | 2022-03-01 | 2022-03-01 | Coaxial counter-rotating vertical axis wind turbine generator set using bionic blades |
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| CN202210194747.XA CN114542390B (en) | 2022-03-01 | 2022-03-01 | Coaxial counter-rotating vertical axis wind turbine generator set using bionic blades |
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| CN114542390A CN114542390A (en) | 2022-05-27 |
| CN114542390B true CN114542390B (en) | 2024-07-26 |
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| CN117060674B (en) * | 2023-10-11 | 2023-12-22 | 南开大学 | Electromagnetic power generation device based on bionic fluctuation fin |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102904491A (en) * | 2011-07-27 | 2013-01-30 | 上海稳得新能源科技有限公司 | Disk-type magnetic suspension outer rotor type vertical shaft wind-driven generator unit |
| CN107882683A (en) * | 2017-10-23 | 2018-04-06 | 鹤壁市科技创新研究院 | A kind of interior winding rotates against vertical axis wind-mill generator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR200379582Y1 (en) * | 2004-11-03 | 2005-03-24 | 이정우 | Wind power generator with same axle seperatable rotation |
| US20080292460A1 (en) * | 2007-05-21 | 2008-11-27 | Seven Stars Worldwide Limited | Fluid Turbine With Fluid-Tiltable Blades |
| JP6126287B1 (en) * | 2016-09-29 | 2017-05-10 | 株式会社ドリームバード | Vertical axis spiral turbine |
| CN206707918U (en) * | 2017-02-10 | 2017-12-05 | 中国电力工程顾问集团华北电力设计院有限公司 | Waveform trailing edge blade and H type vertical-shaft aerogenerators |
| JP2018150898A (en) * | 2017-03-14 | 2018-09-27 | Ntn株式会社 | Vertical shaft windmill, its blade, and wind power generation device |
| CN111271218B (en) * | 2020-02-27 | 2024-12-20 | 空气动力学国家重点实验室 | A vertical-axis wind turbine blade with deformable leading edge and a vertical-axis wind turbine |
| CN113323796A (en) * | 2021-06-29 | 2021-08-31 | 中国科学院工程热物理研究所 | Bionic leading edge wind power blade and optimal design method |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102904491A (en) * | 2011-07-27 | 2013-01-30 | 上海稳得新能源科技有限公司 | Disk-type magnetic suspension outer rotor type vertical shaft wind-driven generator unit |
| CN107882683A (en) * | 2017-10-23 | 2018-04-06 | 鹤壁市科技创新研究院 | A kind of interior winding rotates against vertical axis wind-mill generator |
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