CN102536643B - Vertical axis wind turbine - Google Patents
Vertical axis wind turbine Download PDFInfo
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- CN102536643B CN102536643B CN 201210011801 CN201210011801A CN102536643B CN 102536643 B CN102536643 B CN 102536643B CN 201210011801 CN201210011801 CN 201210011801 CN 201210011801 A CN201210011801 A CN 201210011801A CN 102536643 B CN102536643 B CN 102536643B
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- Prior art keywords
- wind
- type blade
- resistance type
- lift
- vertical axis
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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
Abstract
The invention aims to provide a vertical axis wind turbine comprising a wind turbine tower frame, a wind turbine spindle, a generator, a wind speed and wind direction sensor, lifting power type blades, resistance type blades, a lifting power type servo motor, a resistance type driving motor and a wind wheel. The wind turbine spindle is connected with the wind turbine tower frame. The generator is mounted on the wind turbine tower frame and is connected with the wind turbine spindle. The wind wheel is mounted on the wind turbine spindle and is respectively provided with the lifting power type blades and the resistance type blades. The lifting power type blades are mounted on the lifting power type servo motor, and the resistance type blades are mounted on the resistance type driving motor. A spindle position encoder and a conductive sliding ring are mounted the wind turbine spindle. The wind speed and wind direction sensor is mounted at the top of the wind turbine spindle through a wind speed and wind direction connection board. According to the vertical axis wind turbine disclosed by the invention, the blades are in a symmetrical structure, a wind moment which is generated relative to rotating shafts of the blades is zero, and the direction of an aerodynamic moment of the blades is the same as the rotating direction of the blades. Therefore, the motor consumption is reduced, the starting properties and the utilization rate of wind energy are improved, and the application field is wide.
Description
Technical field
What the present invention relates to is a kind of wind energy conversion system for generating.
Background technique
Vertical axis aerogenerator is divided into resistance type and lift-type two classes: the shaft resistance type windmill startability is good, but is adapted at moving under the low tip-speed ratio; Lift-type wind energy conversion system aeroperformance is good, and wind energy utilization is higher, but its startability is poor, even can not self-starting.The drawbacks limit of two class wind energy conversion systems the extensive use of vertical axis windmill, to the self-starting performance of vertical axis windmill and the research of wind energy utilization, and the wind energy conversion system environmental suitability becomes to attach most importance to the research of operating range.
At the problems referred to above, people have proposed multiple scheme, it is the most representative to be with application number that 200920261028.5 utility model patent " rises resistance mixed type vertical axis wind energy conversion system ", it adopts H type Darrius blower fan and the combination of S type blower fan, by rising the startability of having improved wind energy conversion system to a certain extent that is combined in of resistance type blower fan, but there is S type blade processing complexity, the shortcoming that cost is high, and along with the operation to wind energy conversion system of the raising S type blade of wind speed produces a very large impact, reduced wind energy utilization, though namely improved the low wind speed operating range of wind energy conversion system, limited the use of high wind speed, and wind energy utilization be lower under the fixed pitch technology.This makes that the present invention power consumption is big, is not suitable for high wind speed occasion, cost height.
Utility model patent ZL200820017859.3 is by changing the vane airfoil profile aerodynamic shape, changed the aerodynamic parameter of wind energy conversion system, though improved the startability of vertical axis windmill, but the variation of aerofoil profile aerodynamic shape, generating efficiency to wind energy conversion system under the high tip-speed ratio has a significant impact, and special vane airfoil profile has increased the wind energy conversion system cost undoubtedly.Utility model patent 200820091137.2 " vertical shaft half alive half solid combined blade windmill ", owing to have only a blade activity, seem simple on the structure, but fail to take full advantage of wind energy conversion system wind field resource, and aggravated turbulent flow phenomenon between stator blade and moving vane, worsened the vane stress environment, improved the requirement to blade strength and rigidity, the vibration of aggravation wind energy conversion system influences overall performance, poor practicability.
Summary of the invention
The object of the present invention is to provide and reduce to start wind speed, widen operating range, improve a kind of vertical axis windmill of generating efficiency.
The object of the present invention is achieved like this:
A kind of vertical axis windmill of the present invention, it is characterized in that: comprise windmill tower frame, the wind energy conversion system main shaft, generator, wind speed wind direction sensor, the lift-type blade, the resistance type blade, the lift-type actuating motor, the resistance type drive motor, wind wheel, the wind energy conversion system main shaft links to each other with windmill tower frame, generator is installed on the windmill tower frame and with the wind energy conversion system main shaft and links to each other, wind wheel is installed on the wind energy conversion system main shaft, lift-type blade and resistance type blade are installed respectively on the wind wheel, the lift-type blade is installed the lift-type actuating motor, the resistance type blade is installed the resistance type drive motor, main spindle's encoder and conducting slip ring are installed on the wind energy conversion system main shaft, and wind speed wind direction sensor is installed in wind energy conversion system main shaft top by the wind direction and wind velocity connecting plate.
The present invention can also comprise:
1, resistance type blade and the lift-type blade installation radius on wind wheel is respectively R
D, R
L, R
D/ R
L=3/10.
2, the mechanism that is made up of resistance type blade, lift-type blade, wind wheel has three groups, and angle is 120 degree between every group.
3, lift-type blade and resistance type blade all adopt the two end supports form, and lift-type blade rotation center arrangement is at 1/4 place of distance blade inlet edge.
4, the resistance type blade comprises two half vanes, two half vane axles are 1 gear engagement by velocity ratio, two half vane closures are combined into complete aerofoil profile, when overlooking vertical axis windmill, 130 degree are transferred to by closure and to open the resistance type blade at the azimythal angle, 190 blades when spending open up into maximum position at the azimythal angle, and are closed to realizing between 315 degree at azimythal angle 270 degree.
Advantage of the present invention is: blade of the present invention is symplex structure, and wind-force is 0 with respect to the moment that blade rotor produces, and the suffered aerodynamical moment of blade is consistent with the blade rotation direction, reduced electrical consumption, reduced the startup wind speed, improved startability and wind energy utilization, the application is wide.
Description of drawings
Fig. 1 is three-dimension integrally design sketch of the present invention;
Fig. 2 is plan view of the present invention;
Fig. 3 is vertical axis windmill lift and resistance type blade view;
Fig. 4 is that vertical axis windmill lift-type vane propeller-changing of the present invention is apart from rule;
Fig. 5 is the wind energy conversion system information collecting device.
Embodiment
For example the present invention is done description in more detail below in conjunction with accompanying drawing:
In conjunction with Fig. 1～5, wind energy conversion system main shaft 5 of the present invention is connected by flange with windmill tower frame 1 and fixes with ground, wind wheel 3 is around 5 rotations of wind energy conversion system main shaft, and generator 2 is installed in wind energy conversion system main shaft 5 bottoms, and wind wheel 3 rotatablely moves wind wheel by chain and is delivered to generator 2; Wind speed wind direction sensor 7 is positioned at wind energy conversion system main shaft 5 tops, main spindle's encoder 11 and conducting slip ring 12 are sleeved on the wind energy conversion system main shaft 5, and be positioned at below the wind speed wind direction sensor 7, rain cover 6 is sleeved on main spindle's encoder 11 and conducting slip ring 12 peripheries, to guarantee that sensor normally uses; Lift-type blade 10 and resistance type blade 8 are installed on the wind wheel 3, and resistance type drive motor 4 is installed in the resistance type vane tip, and lift-type actuating motor 9 is installed in the lift-type vane tip.Wind speed wind direction sensor 7 and main spindle's encoder 11 pass to controller with Information Monitoring through conducting slip ring 12, realize feather control.
In conjunction with Fig. 3 and Fig. 4, be frame of reference with the earth, rise resistance mixed type vertical axis wind energy conversion system in operation process, the state of blade is as shown in Figure 3.For the resistance type blade, blade at the azimythal angle about 130 ° of beginnings opened gradually by closure, blade opens up into maximum position 190 ° the time at the azimythal angle, in 270 ° to the 315 ° scopes in azimythal angle, realize closure then, keep the blade closed state then, up to open next time, because the folding effect of resistance type blade has improved the driving moment that upwind is distinguished with the wind, and reduced the resisting moment that time wind direction is distinguished against the wind, and blower fan is started under very low wind speed, improved the startability of wind energy conversion system; Follow rule shown in Figure 4 for its Changing Pattern of lift-type blade, under different tip-speed ratios, adopt the different oar rules that become, improve the wind energy utilization of vertical axis windmill, by regulating the not propeller pitch angle of starting state lower blade of vertical axis windmill, can realize the self-starting of vertical axis windmill, improve the wind energy conversion system startability.
In conjunction with Fig. 5, wind wheel 3 of the present invention rotates around wind energy conversion system main shaft 5 through angular contact ball bearing 19, in wind wheel 3 ends end face flange 20 is installed, rotatablely moving of wind wheel 3 passed to main spindle's encoder 11 and conducting slip ring 12, and at end face flange 20 and wind energy conversion system main shaft 5 contact positions felt seal ring 18 is installed; Main spindle's encoder 11 is sleeved on the wind energy conversion system main shaft 5, and the retaining ring of main spindle's encoder 11 and wind energy conversion system main shaft 5 are fixed, and rotating part is then fixed by encoder link 21 and end face flange 20, is used for gathering the wind wheel rotation information; Conducting slip ring 12 is installed in above the main spindle's encoder 11, fixed by slip ring link 17 and end face flange 20 screws, rain cover 6 is enclosed within main spindle's encoder 11 and conducting slip ring 12 peripheries, to prevent entering of rainwater and dust, at rain cover 6 and wind energy conversion system main shaft 5 joints labyrinth collar 16 is installed, prevents that rainwater from infiltrating and the protection sensing equipment; Flow direction vane 13 places wind energy conversion system main shaft 5 tops with anemoscope 14, is installed on the wind direction and wind velocity connecting plate 15, and flow direction vane 13 is gathered near the flow field of vertical axis windmill wind direction, and anemoscope 14 is gathered wind field wind speed situations of change.
The principles illustrated of the position servo control of liter resistance mixed type vertical axis wind energy conversion system information gathering and lift-type blade is as follows: main spindle's encoder 11 is gathered the wind wheel positions, the information of sensor collection passes to controller through conducting slip ring 12, controller calculates suitable change oar rule through algorithm, control law and the motor power line of controller output pass to actuating motor 9 through conducting slip ring 12, lift-type driven by servomotor blade rotation respective angles is to obtain the optimum pneumatic performance, blade rotation information arrives controller through the blade encoder feedback, controller is made corresponding adjustment, realizes the position servo control of blade.
The present invention includes some features like this:
1, described vertical axis windmill adopts wind wheel around the rotation mode that main shaft rotates, and on the stepped main shaft angular contact ball bearing is installed, and bearing two supporting forms guarantee the stability of wind energy conversion system running simultaneously to guarantee rigidity and the wind energy conversion system running accuracy of wind energy conversion system.
2, wind speed wind direction sensor is positioned at the main shaft top, and conducting slip ring and position encoder be installed under wind speed wind direction sensor, wind speed and direction information, lift force blade actuating motor encoder feedback signal, resistance type blade driving motor encoder feedback signal etc. communicate information to controller by conducting slip ring, electrical source of power also passes to each sensor and each motor by conducting slip ring simultaneously, realizes the position servo control of blade.
3, lift-type and resistance type blade all adopt the two end supports form, and the sharf end all is equipped with angular contact ball bearing to guarantee the rigidity of blade, reduces deformable blade to the influence of aerodynamic parameter.
4, lift-type blade rotation center arrangement is at 1/4 chord length place of distance blade inlet edge, the blade actuating motor is installed in the sharf top, controller is by the propeller pitch angle of control worm and gear reducing motor adjusting vane, the blade axle head is equipped with encoder, encoder feeds back to controller with leaf position, by the propeller pitch angle position servo control realization vertical axis windmill peak output output of blade.
5, among the present invention, internal layer resistance type blade is made of two half vanes, blade tip is connected with torque motor, two sharfs are 1 gear engagement by velocity ratio, two blade closures are combined into complete aerofoil profile, the opening angle of torque motor control blade, the sharf place is equipped with limit switch, to guarantee the safety of blade.
6, among the present invention, lift-type blade and resistance type blade are arranged according to the best tip-speed ratio under the rated wind speed, the wind wheel radius ratio that resistance type blade and lift force blade are installed is 0.3, realizes that the low tip-speed ratio of wind energy conversion system to the transition of high tip-speed ratio running, improves the wind energy utilization of wind energy conversion system.
Claims (5)
1. vertical axis windmill, it is characterized in that: comprise windmill tower frame, the wind energy conversion system main shaft, generator, wind speed wind direction sensor, the lift-type blade, the resistance type blade, the lift-type actuating motor, the resistance type drive motor, wind wheel, the wind energy conversion system main shaft links to each other with windmill tower frame, generator is installed on the windmill tower frame and with the wind energy conversion system main shaft and links to each other, wind wheel is installed on the wind energy conversion system main shaft, lift-type blade and resistance type blade are installed respectively on the wind wheel, the lift-type blade is installed the lift-type actuating motor, the resistance type blade is installed the resistance type drive motor, main spindle's encoder and conducting slip ring are installed on the wind energy conversion system main shaft, and wind speed wind direction sensor is installed in wind energy conversion system main shaft top by the wind direction and wind velocity connecting plate;
Resistance type blade and the lift-type blade installation radius on wind wheel is respectively R
D, R
L, R
D/ R
L=3/10.
2. a kind of vertical axis windmill according to claim 1, it is characterized in that: the mechanism that is made up of resistance type blade, lift-type blade, wind wheel has three groups, and angle is 120 degree between every group.
3. a kind of vertical axis windmill according to claim 1 and 2, it is characterized in that: lift-type blade and resistance type blade all adopt the two end supports form, and lift-type blade rotation center arrangement is at 1/4 place of distance blade inlet edge.
4. a kind of vertical axis windmill according to claim 1 and 2, it is characterized in that: the resistance type blade comprises two half vanes, two half vane axles are 1 gear engagement by velocity ratio, two half vane closures are combined into complete aerofoil profile, when overlooking vertical axis windmill, 130 degree are transferred to by closure and to open the resistance type blade at the azimythal angle, and 190 blades when spending open up into maximum position at the azimythal angle, and are closed to realizing between 315 degree at azimythal angle 270 degree.
5. a kind of vertical axis windmill according to claim 3, it is characterized in that: the resistance type blade comprises two half vanes, two half vane axles are 1 gear engagement by velocity ratio, two half vane closures are combined into complete aerofoil profile, when overlooking vertical axis windmill, 130 degree are transferred to by closure and to open the resistance type blade at the azimythal angle, and 190 blades when spending open up into maximum position at the azimythal angle, and are closed to realizing between 315 degree at azimythal angle 270 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210011801 CN102536643B (en) | 2012-01-16 | 2012-01-16 | Vertical axis wind turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210011801 CN102536643B (en) | 2012-01-16 | 2012-01-16 | Vertical axis wind turbine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102536643A CN102536643A (en) | 2012-07-04 |
| CN102536643B true CN102536643B (en) | 2013-08-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210011801 Expired - Fee Related CN102536643B (en) | 2012-01-16 | 2012-01-16 | Vertical axis wind turbine |
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| CN (1) | CN102536643B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019002923A1 (en) * | 2017-06-30 | 2019-01-03 | Agile Wind Power Ag | Vertical wind turbine comprising a coaxial pitch motor, kit for same, and method for operating same |
| WO2019002549A1 (en) * | 2017-06-30 | 2019-01-03 | Agile Wind Power Ag | Vertical wind turbine comprising pitch motor with protruding rotor blades, kit for same, and method for operating same |
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| JP5885874B1 (en) * | 2015-04-10 | 2016-03-16 | 豊 根本 | Community tower with street lamp |
| CN107121565A (en) * | 2017-04-18 | 2017-09-01 | 苏州格联威智能科技有限公司 | A kind of extraordinary wind speed tester |
| CN108561271B (en) * | 2018-06-29 | 2023-06-09 | 河北工业大学 | Combined vertical axis wind turbine |
| CN110873024B (en) * | 2018-08-30 | 2021-06-01 | 新疆金风科技股份有限公司 | Vertical axis wind generating set |
| CN109751182B (en) * | 2019-03-19 | 2023-11-07 | 上海理工大学 | Novel mechanical active deformation blade for vertical axis wind turbine |
| CN115342023B (en) * | 2022-09-13 | 2023-06-23 | 中国长江三峡集团有限公司 | Impeller structure and wind power generation device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101225794B (en) * | 2008-01-25 | 2010-06-23 | 严强 | Blade structure, wind wheel and generator device of vertical axis wind power generator |
| CN201159137Y (en) * | 2008-02-05 | 2008-12-03 | 崔美娟 | Elevating force and resistance mixed vertical axis aerogenerator |
| CN201255077Y (en) * | 2008-10-17 | 2009-06-10 | 曲建俊 | Vertical shaft half-moving and half-fixing combination type blade windmill |
| CN201599139U (en) * | 2009-12-03 | 2010-10-06 | 深圳先进技术研究院 | Lift-drag force hybrid vertical axis wind turbine |
-
2012
- 2012-01-16 CN CN 201210011801 patent/CN102536643B/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019002923A1 (en) * | 2017-06-30 | 2019-01-03 | Agile Wind Power Ag | Vertical wind turbine comprising a coaxial pitch motor, kit for same, and method for operating same |
| WO2019002549A1 (en) * | 2017-06-30 | 2019-01-03 | Agile Wind Power Ag | Vertical wind turbine comprising pitch motor with protruding rotor blades, kit for same, and method for operating same |
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| Publication number | Publication date |
|---|---|
| CN102536643A (en) | 2012-07-04 |
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Granted publication date: 20130828 Termination date: 20210116 |
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