CN113586329A - Novel vertical axis wind turbine generator system - Google Patents
Novel vertical axis wind turbine generator system Download PDFInfo
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- CN113586329A CN113586329A CN202110807781.5A CN202110807781A CN113586329A CN 113586329 A CN113586329 A CN 113586329A CN 202110807781 A CN202110807781 A CN 202110807781A CN 113586329 A CN113586329 A CN 113586329A
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- generator
- main shaft
- vertical axis
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- axis wind
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- 230000001360 synchronised effect Effects 0.000 claims description 4
- 238000010248 power generation Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction 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
- 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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- 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)
- Wind Motors (AREA)
Abstract
The invention provides a novel vertical axis wind turbine generator, which comprises a speed-up gear box, a supporting platform, more than four first supporting rods, a main shaft, a generator, a tower, a base and more than two blades, wherein the speed-up gear box is arranged on the supporting platform; the tower drum is fixed on the base; the main shaft is vertically arranged at the top of the tower barrel through a tapered roller bearing, and the bottom of the main shaft extends into the tower barrel; the speed-increasing gearbox and the generator are both arranged in the tower barrel, the input end of the speed-increasing gearbox is connected with the bottom of the main shaft through a hollow shaft, and the output end of the speed-increasing gearbox is connected with a rotating shaft of the generator through a spline shaft; the supporting platform is arranged inside the tower barrel and is positioned below the generator; each blade is connected with the main shaft through at least two first supporting rods.
Description
Technical Field
The invention belongs to the technical field of wind power generation, and particularly relates to a novel vertical axis wind turbine generator.
Background
Compared with a horizontal-axis wind driven generator, the vertical-axis wind driven generator has the advantages of simple structure, no need of yaw and pitch devices, good blade manufacturability, long design life, low cost and the like, and can become an important component of a distributed intelligent micro-grid system for clean energy utilization in future. Compared with a horizontal-axis wind driven generator, the vertical-axis wind driven generator has the advantages of simple structure, no need of yaw and pitch devices, good blade manufacturability, long design life, low cost and the like, and can become an important component of a distributed intelligent micro-grid system for clean energy utilization in future. On the basis of comprehensively analyzing and summarizing the advantages and the disadvantages of the conventional vertical axis wind turbine, a novel high-power vertical axis wind turbine structure is provided, the problem of dynamic unbalance in the operation process of the large vertical axis wind turbine can be effectively solved, the generating efficiency and the structural performance of a unit are greatly improved, and the wind turbine has strong market competitiveness and wide commercial application prospect.
However, the vertical axis wind turbine is prone to generating dynamic unbalance during operation, and the operation efficiency and the structural performance of the unit are affected.
Disclosure of Invention
In order to solve the common problem of dynamic unbalance in the operation process of the vertical axis wind generating set, the invention provides a novel vertical axis wind generating set.
The invention adopts the following technical scheme:
a novel vertical axis wind turbine generator comprises a speed-up gear box, a supporting platform, more than four first supporting rods, a main shaft, a generator, a tower, a base and more than two blades; the tower drum is fixed on the base; the main shaft is vertically arranged at the top of the tower barrel through a tapered roller bearing, and the bottom of the main shaft extends into the tower barrel; the speed-increasing gearbox and the generator are both arranged in the tower barrel, the input end of the speed-increasing gearbox is connected with the bottom of the main shaft through a hollow shaft, and the output end of the speed-increasing gearbox is connected with a rotating shaft of the generator through a spline shaft; the supporting platform is arranged on the inner wall of the tower barrel and is positioned below the generator; each blade is connected with the main shaft through at least two first supporting rods.
Furthermore, a plurality of second supporting rods are further arranged, one ends of the second supporting rods are connected with the connecting positions of the blades and the first supporting rods, and the other ends of the second supporting rods are connected with the main shaft.
Furthermore, a plurality of third supporting rods are further arranged, the third supporting rods are arranged between the adjacent first supporting rods and the second supporting rods, one end of each third supporting rod is connected with the corresponding first supporting rod, and the other end of each third supporting rod is connected with the corresponding second supporting rod.
Furthermore, a plurality of fourth supporting rods are further arranged, one ends of the fourth supporting rods are connected with the first supporting rods, and the other ends of the fourth supporting rods are connected with the blades.
Furthermore, the tapered roller bearing is a single-row tapered roller bearing, and the spindle is vertically arranged at the top of the tower barrel through two back-to-back single-row tapered roller bearings.
Further, the speed increasing gear box is a two-stage planetary gear box.
Further, the generator is a medium speed permanent magnet synchronous generator.
Further, the blades adopt NACA0015 airfoil profiles.
The invention has the beneficial effects that: the invention provides a novel vertical axis wind turbine generator, and provides a novel design concept of a high-power vertical axis wind turbine generator, which can effectively reduce the common problem of dynamic unbalance in the operation process of the vertical axis wind turbine generator and greatly improve the generating efficiency and the structural performance of the generator.
Drawings
FIG. 1 is a schematic block diagram of one embodiment of the present invention;
FIG. 2 is a schematic structural view of a connecting portion of the main shaft and the tower;
FIG. 3 is a wind energy utilization factor calculation.
Description of reference numerals: in fig. 1: 1. a speed-increasing gear box; 2. a support platform; 3. a first support bar; 4. a main shaft; 5. a second support bar; 6. a third support bar; 7. a generator; 8. a tower drum; 9. a base; 10. a blade; 11. a fourth support bar; 12. a tapered roller bearing.
Detailed Description
The present invention is further described with reference to the following examples, which are provided for illustration only and are not to be construed as limiting the scope of the claims, and other alternatives which may occur to those skilled in the art are also within the scope of the claims.
Example 1
A novel vertical axis wind turbine generator set is shown in figure 1 and comprises a speed-up gear box 1, a supporting platform 2, more than four first supporting rods 3, a main shaft 4, a generator 7, a tower drum 8, a base 9 and more than two blades 10; the tower barrel 8 is fixed on the base 9; the main shaft 4 is vertically arranged at the top of the tower barrel 8 through a tapered roller bearing 12, and the bottom of the main shaft 4 extends into the tower barrel 8; the speed-increasing gear box 1 and the generator 7 are both arranged on the inner wall of the tower barrel 8, the input end of the speed-increasing gear box 1 is connected with the bottom of the main shaft 4 through a hollow shaft, and the output end of the speed-increasing gear box is connected with a rotating shaft of the generator 7 through a spline shaft; the supporting platform 2 is arranged inside the tower barrel 8 and is positioned below the generator 7, and when the generator 7 or the gearbox 1 needs to be repaired, workers can stand on the supporting platform 2; each blade 10 is connected to the main shaft 4 by at least two first support rods 3.
A plurality of second supporting rods 5 are further arranged, the uniform ends of the second supporting rods 5 are connected with the joints of the blades 10 and the first supporting rods 3, and the other ends of the second supporting rods 5 are connected with the main shaft 4 and used for fixing the blades 10.
Still be equipped with a plurality of third bracing pieces 6, third bracing piece 6 all sets up between adjacent first bracing piece 3 and second bracing piece 5, and first bracing piece 3 is connected to one end, and second bracing piece 5 is connected to the other end for fixed second bracing piece 5 and first bracing piece 3, and then fixed blade 10.
A plurality of fourth supporting rods 11 are further arranged, the uniform end of each fourth supporting rod 11 is connected with the first supporting rod 3, and the other end of each fourth supporting rod is connected with the corresponding blade 10 and used for fixing the corresponding blade 10.
As shown in fig. 2, the tapered roller bearing 12 is a single-row tapered roller bearing, and the main shaft 4 is vertically arranged on the top of the tower 8 through two single-row tapered roller bearings arranged back to back. Two single-row tapered roller bearings which are back to back are used, and axial movement is guaranteed not to occur.
The speed increasing gear box 1 is a two-stage planetary gear box.
The generator 7 is a medium speed permanent magnet synchronous generator.
The blades 10 are made of NACA0015 wing profiles, compared with lift coefficients, drag coefficients and lift-drag ratios of the NACA0012 wing profiles, the NACA0015 wing profiles and the NACA0018 wing profiles, the NACA0015 wing profiles are preferably selected in consideration of strength conditions and aerodynamic performance.
When the wind power generator is used, the blades 10 rotate under the thrust action of wind, and the whole truss structure and the main shaft 4 rotate at the same speed with the blades 10, so that wind energy is converted into rotary mechanical energy; the speed-up gear box 1 is a two-stage planetary gear box and is connected with the main shaft 4 to improve the rotating speed; the generator 7 adopts a medium-speed permanent magnet synchronous generator, and a rotating shaft of the generator 7 is connected with a spline shaft of the speed-up gear box 1 to convert mechanical energy into kinetic energy. The full-power converter system of the unit adopts an AC-DC-AC conversion mode, low-frequency alternating current generated by a generator is converted into direct current (AC/DC) through rectification, then the direct current is converted into alternating current with the same frequency, the same amplitude and the same phase as a power grid through a DC/AC inverter, and finally the alternating current is merged into the power grid through a transformer to complete the task of transmitting electric energy to the power grid.
As shown in FIG. 3, the aerodynamics is fully demonstrated, and the maximum wind energy utilization coefficient is theoretically calculated to be 0.42.
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (8)
1. The utility model provides a novel vertical axis wind turbine generator system which characterized in that: the wind power generation device comprises a speed-increasing gear box (1), a supporting platform (2), more than four first supporting rods (3), a main shaft (4), a generator (7), a tower drum (8), a base (9) and more than two blades (10); the tower drum (8) is fixed on the base (9); the main shaft (4) is vertically arranged at the top of the tower drum (8) through a tapered roller bearing (12), and the bottom of the main shaft (4) extends into the tower drum (8); the speed-increasing gear box (1) and the generator (7) are both arranged inside the tower barrel (8), the input end of the speed-increasing gear box (1) is connected with the bottom of the main shaft (4) through a hollow shaft, and the output end of the speed-increasing gear box is connected with a rotating shaft of the generator (7) through a spline shaft; the supporting platform (2) is arranged on the inner wall of the tower barrel (8) and is positioned below the generator (7); each blade (10) is connected with the main shaft (4) through at least two first supporting rods (3).
2. The novel vertical axis wind turbine as set forth in claim 1, wherein: a plurality of second supporting rods (5) are further arranged, the uniform ends of the second supporting rods (5) are connected with the connecting parts of the blades (10) and the first supporting rods (3), and the other ends of the second supporting rods are connected with the main shaft (4).
3. The novel vertical axis wind turbine as set forth in claim 2, wherein: still be equipped with a plurality of third bracing pieces (6), third bracing piece (6) all set up between adjacent first bracing piece (3) and second bracing piece (5), and first bracing piece (3) are connected to one end, and second bracing piece (5) are connected to the other end.
4. The novel vertical axis wind turbine as set forth in claim 1, wherein: a plurality of fourth supporting rods (11) are further arranged, one end of each fourth supporting rod (11) is connected with the first supporting rod (3), and the other end of each fourth supporting rod is connected with the corresponding blade (10).
5. The novel vertical axis wind turbine as set forth in claim 1, wherein: the tapered roller bearing (12) is a single-row tapered roller bearing, and the main shaft (4) is vertically arranged at the top of the tower tube (8) through two back-to-back single-row tapered roller bearings.
6. The novel vertical axis wind turbine as set forth in claim 1, wherein: the speed increasing gear box (1) is a two-stage planetary gear box.
7. The novel vertical axis wind turbine as set forth in claim 1, wherein: the generator (7) is a medium-speed permanent magnet synchronous generator.
8. The novel vertical axis wind turbine as set forth in claim 1, wherein: the blades (10) adopt NACA0015 airfoil profiles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110807781.5A CN113586329A (en) | 2021-07-16 | 2021-07-16 | Novel vertical axis wind turbine generator system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110807781.5A CN113586329A (en) | 2021-07-16 | 2021-07-16 | Novel vertical axis wind turbine generator system |
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| CN113586329A true CN113586329A (en) | 2021-11-02 |
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| CN202110807781.5A Pending CN113586329A (en) | 2021-07-16 | 2021-07-16 | Novel vertical axis wind turbine generator system |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1938517A (en) * | 2004-03-31 | 2007-03-28 | 株式会社Ipb | Cantilevered vertical shaft type windmill |
| CN201963490U (en) * | 2011-03-25 | 2011-09-07 | 孙善骏 | Vertical axis wind power generator with barrel |
| CN103089547A (en) * | 2012-08-08 | 2013-05-08 | 惠州市三鼎能源科技有限公司 | Balanced vertical-axis large wind power generation unit |
| CN108612623A (en) * | 2018-04-26 | 2018-10-02 | 清华大学 | A kind of floating type offshore vertical axis wind powered generator system of blade |
| CN211950739U (en) * | 2019-11-24 | 2020-11-17 | 河北宏远创研能源科技有限公司 | High-power low-wind-speed wind generating set with lifting force blade paddle and vertical shaft tower support |
| CN213144660U (en) * | 2020-10-05 | 2021-05-07 | 曲阜师范大学 | High-power vertical axis wind turbine generator system |
-
2021
- 2021-07-16 CN CN202110807781.5A patent/CN113586329A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1938517A (en) * | 2004-03-31 | 2007-03-28 | 株式会社Ipb | Cantilevered vertical shaft type windmill |
| CN201963490U (en) * | 2011-03-25 | 2011-09-07 | 孙善骏 | Vertical axis wind power generator with barrel |
| CN103089547A (en) * | 2012-08-08 | 2013-05-08 | 惠州市三鼎能源科技有限公司 | Balanced vertical-axis large wind power generation unit |
| CN108612623A (en) * | 2018-04-26 | 2018-10-02 | 清华大学 | A kind of floating type offshore vertical axis wind powered generator system of blade |
| CN211950739U (en) * | 2019-11-24 | 2020-11-17 | 河北宏远创研能源科技有限公司 | High-power low-wind-speed wind generating set with lifting force blade paddle and vertical shaft tower support |
| CN213144660U (en) * | 2020-10-05 | 2021-05-07 | 曲阜师范大学 | High-power vertical axis wind turbine generator system |
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Application publication date: 20211102 |