CN101660502B - Controllable blade surface movement velocity and direction lift-force type vertical shaft wind force generating device - Google Patents
Controllable blade surface movement velocity and direction lift-force type vertical shaft wind force generating device Download PDFInfo
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- CN101660502B CN101660502B CN2009101965788A CN200910196578A CN101660502B CN 101660502 B CN101660502 B CN 101660502B CN 2009101965788 A CN2009101965788 A CN 2009101965788A CN 200910196578 A CN200910196578 A CN 200910196578A CN 101660502 B CN101660502 B CN 101660502B
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction
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Abstract
The invention relates to a controllable blade surface movement velocity and direction lift-force type vertical shaft wind force generating device comprising a blade, an empennage and a wind wheel-driving electric machine main shaft, wherein the blade is a blade being capable of regulating an attack angle and controlling surface movement velocity and direction; the regulating of the blade attack angle and the control of the surface movement velocity and direction are realized by a regulation and control device. The regulation and control device has a structure that the empennage drives a cam path, and the cam path drives a link mechanism; the link mechanism drives the blade to change the attack angle formed by the blade and incoming flow along with the change of a rotation phase, and the change of the movable surface rotating speed and the rotating direction on the controllable blade is controlled while the attack angle is changed so as to realize that the blade restrains flow separation and increase the lift force under a big attack angle during the rotating process so as to effectively increase the wind energy use ratio. The wind force generating device can increase the wind energy use ratio of wind machines, is suitable for any incoming flow wind direction and has simple structure and easy realization.
Description
Technical field
The present invention relates to a kind of wind generating unit, particularly a kind of controllable blade surface movement velocity that is suitable for any wind direction and direction are to increase the lift-force type vertical shaft wind force generating device of output torque.
Technical background
Wind energy is a clean energy resource with fastest developing speed in the renewable energy sources, also is the generation mode that has large-scale development and commercialized development prospect most.In recent ten years, world's wind-power electricity generation is to surpass 30% speed increment.Be accompanied by the fast development of world's wind-powered electricity generation industry, China also more and more payes attention to the development of wind-powered electricity generation industry.The promulgation in February, 2005 " renewable energy sources method " indicates that China's energy strategy gets into new period, and National Development and Reform Committee has also proposed the layout of high-power wind power generation industrialization simultaneously, and the wind energy resources of China's abundant also provides development condition for the wind-powered electricity generation industry.The THE WIND ENERGY RESOURCES IN CHINA reserves are abundant, and according to preresearch estimates, the wind energy resources of the land overhead 10 meters height layers of China can the exploitation amount be 2.53 hundred million kilowatts; The wind energy content of off sea 10 meters height layers of greater coasting area is about 7.5 hundred million kilowatts.
Through statistics, in the end of the year 2005,1,260,000 kilowatts of China's wind-powered electricity generation electric motor powers increased by 64%, 2007 year China with respect to 2004 and except that Taiwan Province, increase 3155 electric motor powers of wind-powered electricity generation unit newly, 330.4 ten thousand kilowatts of installation total amounts.Compare for 133.7 ten thousand kilowatts with newly-increased then installation in 2006, newly-increased then installation growth rate was 147.1% in 2007.To accumulative total electric motor power in the end of the year 2007 is 590.6 kilowatts, and electricity volume is estimated about 5,200,000,000 kilowatt hours.The installation total amount of China in 2008 is that 12152MW has turned over some than total amount before, occupies the 3rd in the world.
Existing wind-driven generator, as shown in Figure 1, the incoming flow angle of attack hour, lift coefficient increases along with the increase of the angle of attack; When the incoming flow angle of attack during greater than the aerofoil profile maximum lift angle of attack (stall angle), flowing occurs separating, and makes lift coefficient descend, and causes before and after the pressure distribution asymmetricly simultaneously, so-called pressure drag occurs, and resistance coefficient is sharply risen.
Summary of the invention
The object of the invention is to provide a kind of controllable blade surface movement velocity and direction lift-force type vertical shaft wind force generating device its blade surface movement velocity of control and direction to suppress the separation of air-flow at the big angle of attack to the problem of above-mentioned essence, thereby improves the wind energy utilization of wind energy conversion system.
In order to achieve the above object, design of the present invention is: (be generally on the bigger outline position of curvature) in the blade appropriate location and load onto 1～N running shaft or control the whole blade surface movement velocity and direction (as shown in Figure 2) is separated to suppress big angle of attack downstream.
In rotation process, remain certain ideal angle of attack (greater than the maximum lift angle of attack of common blade) (as shown in Figure 3) through cam link mechanism control blade with incoming flow; And sense of rotation and speed through running shaft on the Electric Machine Control blade; Blade is become under the situation of the big angle of attack with coming flow path direction in rotation process all the time; Air-flow does not separate, and reduces its resistance coefficient with the lift coefficient that improves blade.As shown in Figure 4, blade is main acting section at HAB and DEF section, is the adjustment changeover portion at BCD and FGH section; Blade is when the HAB section; Keep certain angle of attack by the attack angle regulator adjusting vane angle of attack with coming flow path direction, motor driving blade upper whorl axial turns clockwise simultaneously, and blade is when the BCD section; Blade rotation transition; Motor inversion driving blade wheel shaft is turned to by dextrorotation and is rotated counterclockwise transition simultaneously, and blade keeps certain angle of attack in DEF section and incoming flow, and wheel shaft is rotated counterclockwise simultaneously; At FGH section blade rotation transition simultaneous wheels axle by being rotated counterclockwise to clockwise transition (coming flow path direction when Wi is the i position among Fig. 4, Li is the lift direction that blade produces when the i position).
The structural principle that it is concrete such as Fig. 4, Fig. 5, shown in Figure 6: during change of the wind, the wind vane of empennage (2) top is adjusted the direction of cam (5) simultaneously because the effect of moment will be consistent with wind direction.The cantilever of hollow (6) connects firmly together with generator shaft (1) upper flanges dish (9); A push rod (7) is arranged in each cantilever (6); Push rod (7) is inner to lean in the cam path (14) of said cam (5) through a needle roller (11); Said linkage mechanism is: push rod (7) outer end and a connecting rod (10) hinge join; Connecting rod (10) and blade hinge make blade rotate around rotating center (12), when flange plate (9) rotates on electric machine main shaft (1); The cam path (14) of needle roller (11) in cam (5) that joins together with the inner push rod (7) of cantilever (6) rolls; Needle roller (11) drives push rod (7) and in cantilever (6) inner chamber, slides, and the connecting rod (10) that connects together with push rod (7) will driven vane rotate around blade rotating center (12), and push rod (7) upper stroke switch (15) drives actuating motor (8) thereby the angle of attack of forward and reverse change blade and wheel axle steer and rotating speed reach expection.
According to above design, the present invention adopts following technological scheme:
A kind of controllable blade surface movement velocity and direction lift-force type vertical shaft wind force generating device; Comprise the electric machine main shaft that blade, empennage and wind wheel drive; It is characterized in that said blade is the blade of its surface movement velocity of may command and direction and angle of attack adjusting; Its control surface movement velocity and direction and the angle of attack are regulated and realized that through a regulating controller structure of said regulating controller is: said empennage drives a cam, linkage mechanism of said cam drive; Said linkage mechanism driven vane with the angle of attack of the variation adjustment of rotation phase and incoming flow with and the turning to and rotating speed of wheel shaft, realize the efficient utilization of wind energy.
The wheel shaft and the actuating motor of control surface movement velocity and direction are housed on the above-mentioned blade; Said empennage is a wind vane that the rotating shaft upper end is fixedly connected; Wind vane on the empennage is owing to the effect of moment will be consistent with wind direction; The rotating shaft of empennage is connected with said cam through key, and cam rotates with the rotation of empennage; Said each blade two ends are vertically mounted on two hollow cantilever outer ends up and down; Wherein the cantilever of a hollow and said generator shaft upper flanges dish connect firmly together, and a push rod is arranged in each cantilever, and push rod the inner is leaning in the cam path of said cam through a needle roller; Said linkage mechanism is: push rod outer end and a connecting rod hinge join; Connecting rod and blade hinge make blade rotate around rotating center, when flange plate rotates on electric machine main shaft; The needle roller that joins together with the inner push rod of cantilever rolls at the cam path of cam; Needle roller drives push rod and in cantilever cavity, slides, and the connecting rod that connects together with push rod will driven vane rotate around the blade rotating center, thereby the angle of attack of push rod upper stroke switch control actuating motor forward and reverse change blade and wheel axle steer and rotating speed reach expection.
Above-mentioned blade can be installed 1～30 wheel shaft with control blade surface movement velocity and direction.
Above-mentioned wind wheel with 2～30 blade central shafts around wind wheel rotary middle spindle symmetrical placement.
The radius of above-mentioned wind wheel is 0.001m～1000m, and vertical height is 0.001m～1000m.
Above-mentioned blade can make the airfoil geometry string become-30 °～30 ° angles with the rotation tangent direction with the wind vector relation according to the rotational velocity of design.
The present invention compared with prior art; Have following conspicuous substantive outstanding feature and significant advantage: wind generating unit provided by the invention; Adopt the mode of control blade surface movement velocity and direction to improve blade lift, be applicable to any incoming flow wind direction, related mechanism simply is easy to realize; The lift that can effectively improve in the blade rotation process reduces its rotational resistance, effectively improves wind energy utilization.
Description of drawings
Fig. 1 is that common blade separates schematic representation in big angle of attack downstream.
Fig. 2 is the blade structure schematic representation of controlled surface movement velocity of the present invention and direction.
Fig. 3 is the air flow over blade schematic representation of controlled surface movement velocity of the present invention and direction.
Fig. 4 is that the blade of controllable blade surface movement velocity of the present invention and direction lift-force type vertical shaft wind force generating device is at each position motion change schematic representation.
The structural representation of Fig. 5 one embodiment of the invention.
Fig. 6 is the cantilever place sectional view of Fig. 5 example.
Fig. 7 is Fig. 5 example empennage and cam structure schematic representation.
Embodiment
The preferred embodiments of the present invention accompanying drawings is following:
Embodiment one: referring to Fig. 5; This controllable blade surface movement velocity and direction lift-force type vertical shaft wind force generating device; Comprise the electric machine main shaft 1 that blade 4, empennage 2 and wind wheel drive; Said blade 4 is the blade of controllable blade surface movement velocity and direction and angle of attack adjusting, and its control surface movement velocity and direction and the angle of attack are regulated and realized that through a regulating controller 3 structure of said regulating controller 3 is: said empennage 2 drives a cam 5; Said cam 5 drives a linkage mechanism; Said linkage mechanism driven vane 4 with the angle of attack of the variation adjustment of rotation phase and incoming flow with and the turning to and rotating speed of wheel shaft 13, three blades 4 are distributed on the circumference of diameter 10m, blade 4 is fixed on the flange plate 9 through two cantilevers 6 up and down.Flange plate 9 connects the generator of below through electric machine main shaft 1.Empennage 2 is through cam 5 adjustment blade windward sides.
Vane airfoil profile adopts the NACA0018 aerofoil profile, like Fig. 6, shown in Figure 7, and chord-length 1m.Adorn the wheel shaft that a diameter is 80mm in the aerofoil profile leading edge, an actuating motor 8 is adorned in its rear end, and actuating motor 8 is through belt drives wheel shaft 13.The rotating shaft 16 of empennage 2 is connected with said cam 5 through key 17, and push rod 7 is through in the cantilever 6 of hollow, and an end and connecting rod 10 hinges join, and the other end and needle roller 11 are hinged, and needle roller 11 places the cam path 14 of cam 5.The clockwise and anticlockwise that cantilever 6 is installed position limit switch 15 control actuating motors 8 near the tail end place of blade, when blade occupy upwind, control actuating motor 8 live axles 13 turned clockwise, and occupy down wind direction time control system actuating motor 8 live axles 13 and are rotated counterclockwise.
The design focal point of cam 5 is the design of cam path, and the push rod motion conditions the when angle of attack changes when getting 24 positions that blade is uniformly distributed with in a week motion simulates the movement locus of needle roller 11.
Above-mentioned blade 4 can be installed 1～30 wheel shaft (13).
Having 2～30 blades 4 on the above-mentioned wind wheel settles around the wind wheel center axisymmetricly.
The airfoil geometry string of above-mentioned blade 4 becomes-30 °～30 ° angles with the rotation tangent direction.
Claims (3)
1. controllable blade surface movement velocity and direction lift-force type vertical shaft wind force generating device; Comprise the generator shaft (1) that blade (4), empennage (2) and wind wheel drive; It is characterized in that the blade of said blade (4) for its surface movement velocity of may command and direction and angle of attack adjusting; Its control surface movement velocity and direction and the angle of attack are regulated and are realized through a regulating controller (3); The structure of said regulating controller (3) is: said empennage (2) drives a cam (5); Said cam (5) drives a linkage mechanism, said linkage mechanism driven vane (4) with the angle of attack of the variation adjustment of rotation phase and incoming flow with and wheel shaft (13) turn to and rotating speed the efficient utilization of realization wind energy;
Wind vane on the described empennage (2) will be because the effect of moment will be consistent with wind direction, and the rotating shaft (16) of empennage (2) is connected with said cam (5) through key (17), and cam (5) rotates with the rotation of empennage (2); Each blade (4) two ends are vertically mounted on two hollow cantilevers (6) outer end up and down; Wherein the cantilever of a hollow (6) connects firmly together with said generator shaft (1) upper flanges dish (9); A push rod (7) is arranged in each cantilever (6); Push rod (7) is inner to lean in the cam path (14) of said cam (5) through a needle roller (11), and said linkage mechanism is: push rod (7) outer end and a connecting rod (10) hinge join, and connecting rod (10) joins with blade (4) hinge; Blade is rotated around rotating center (12); When flange plate (9) when generator shaft (1) go up to rotate, the cam path (14) of needle roller (11) in cam (5) that joins together with the inner push rod (7) of cantilever (6) rolls, needle roller (11) drives push rod (7) and in cantilever (6) inner chamber, slides; The connecting rod (10) that connects together with push rod (7) will driven vane rotate around blade rotating center (12), so that incoming flow and blade keep the big angle of attack;
Empennage (2) driving cam (5) is consistent with wind direction; The push rod (7) that cam path (14) through cam (5) drives keeps the big angle of attack with incoming flow and in driven vane when changeover portion is adjusted the angle of attack in main acting section, upwind acting section and following wind direction acting section; The positive and negative wheel shaft (13) that transfers on the control blade (4) that push rod (7) also is fixed in position limit switch (15) the control actuating motor (8) on the cantilever (6) through control is in the wind and is turned clockwise to the acting section; Be rotated counterclockwise during acting section on the leeward, when changeover portion, realize the conversion that the wheel axle steer changes.
2. controllable blade surface movement velocity according to claim 1 and direction lift-force type vertical shaft wind force generating device is characterized in that being equipped with on the said blade (4) 1～30 wheel shaft (13).
3. controllable blade surface movement velocity according to claim 1 and direction lift-force type vertical shaft wind force generating device is characterized in that the airfoil geometry string of blade (4) becomes-30 °～30 ° angles with the rotation tangent direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101965788A CN101660502B (en) | 2009-09-27 | 2009-09-27 | Controllable blade surface movement velocity and direction lift-force type vertical shaft wind force generating device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101965788A CN101660502B (en) | 2009-09-27 | 2009-09-27 | Controllable blade surface movement velocity and direction lift-force type vertical shaft wind force generating device |
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| Publication Number | Publication Date |
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| CN101660502A CN101660502A (en) | 2010-03-03 |
| CN101660502B true CN101660502B (en) | 2012-06-20 |
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| CN2009101965788A Expired - Fee Related CN101660502B (en) | 2009-09-27 | 2009-09-27 | Controllable blade surface movement velocity and direction lift-force type vertical shaft wind force generating device |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943120B (en) * | 2010-06-12 | 2013-02-13 | 彭勇 | Abrasive disc type wind turbine |
| CN102767477B (en) * | 2011-05-03 | 2016-03-16 | 杜满河 | Become oar blade type vertical axis aerogenerator |
| CN102162427B (en) * | 2011-06-08 | 2012-10-31 | 南通大学 | Perpendicular shaft wind turbine rotor with adjustable dip angles of blades |
| CN102305167B (en) * | 2011-07-07 | 2014-03-19 | 安义 | Waterflow source and airflow source power composite rudder blade element |
| CN105134495B (en) * | 2015-09-09 | 2018-01-05 | 中国石油大学(华东) | A kind of vane of vertical shaft wind-driven generator angle of attack regulation and speed-limiting device |
| CN105240209A (en) * | 2015-11-04 | 2016-01-13 | 王振铎 | Dynamic adjustment type wind collection device |
| CN106593768B (en) * | 2017-01-16 | 2023-10-20 | 中国石油大学(华东) | H-shaped vertical axis wind turbine blade real-time variable attack angle device |
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|---|---|---|---|---|
| US7084523B2 (en) * | 2002-09-20 | 2006-08-01 | Tsuneo Noguchi | Windmill for wind power generation |
| CN1840898A (en) * | 2005-03-28 | 2006-10-04 | 李锋 | Impeller of power device utilizing wind energy |
| CN101225794A (en) * | 2008-01-25 | 2008-07-23 | 严强 | Blade structure, wind wheel and generator device of vertical axis wind power generator |
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2009
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7084523B2 (en) * | 2002-09-20 | 2006-08-01 | Tsuneo Noguchi | Windmill for wind power generation |
| CN1840898A (en) * | 2005-03-28 | 2006-10-04 | 李锋 | Impeller of power device utilizing wind energy |
| CN101225794A (en) * | 2008-01-25 | 2008-07-23 | 严强 | Blade structure, wind wheel and generator device of vertical axis wind power generator |
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