CN104265561A - Double-flapping wing blade for vertical axis wind turbine - Google Patents
Double-flapping wing blade for vertical axis wind turbine Download PDFInfo
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- CN104265561A CN104265561A CN201410395897.2A CN201410395897A CN104265561A CN 104265561 A CN104265561 A CN 104265561A CN 201410395897 A CN201410395897 A CN 201410395897A CN 104265561 A CN104265561 A CN 104265561A
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- blade
- flapping wing
- vertical axis
- flapping
- runner assembly
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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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Abstract
The invention provides a double-flapping wing blade for a vertical axis wind turbine. The double-flapping wing blade is characterized by comprising a blade main body, a secondary blade part and a driving device, wherein the blade main body comprises a blade head part and a blade tail part; the secondary blade part comprises two flapping wings mounted at the tail of the blade in an axial symmetry manner about the blade main body, two rotating components fixed at the tail of the blade, and two extension components fixed at the tail of the blade; one ends of the two flapping wings are rotationally connected with the tail of the blade through the two rotating components; the two rotating components are connected with the blade main body through the two extension components; and the driving device is connected with the extension components for driving the elongation or shortening of the extension components so as to drive the corresponding flapping wings to rotate to a position corresponding to the predetermined distance along the corresponding rotating components. When the double-flapping wing blade, provided by the invention, is used for the wind turbine, the starting performance is good, the pneumatic performance is controllable, the wind turbine can be protected, and the service life of the wind turbine is prolonged.
Description
Technical field
The present invention is specifically related to a kind of two flapping wing blades for vertical axis windmill, belongs to wind power generation field.
Background technique
Wind energy conversion system mainly contains horizontal axis and vertical shaft two class, and vertical axis windmill is divided into again shaft resistance type windmill and lift-type wind energy conversion system.Because lift-type wind energy conversion system does not need complicated controlling device can catch any direction wind energy, and noise is low, and structure is simple, and easy to maintenance, therefore the wind energy conversion system of generation current is vertical shaft lift-type wind energy conversion system substantially.
At present, business-like vertical shaft lift-type wind energy conversion system mainly adopts the blade of NACA series of symmetric aerofoil profile, and after wind energy conversion system starts, aerofoil profile upper and lower surface periodically forms suction surface and pressure side.But there is following shortcoming in the blade based on NACA series aerofoil sections:
1. aeroperformance is unadjustable, and brake system load is large.Such blade adjustments and the work exporting generated output are completed by the gearbox on wind energy conversion system base and the brake system in main shaft and power-generating control system completely, can not automatic pneumatic performance unadjustable, when needs slow down, apply the brakes system must slow down the high speed rotating of wind energy conversion system, therefore to bear load huge for brake system.
2. startability is poor, difficulty of slowing down under high wind speed.Such blade does not possess self-startup ability at low wind speeds, driven by motor wind energy conversion system is generally needed to rotate ability normal output power to certain rotating speed, thus the shortcoming of difficulty of slowing down under making such wind energy conversion system there is self-starting difficulty and high wind speed, easily cause that torque is excessive or motor speed is too fast, in running, there is larger potential safety hazard.
Summary of the invention
The object of this invention is to provide a kind of two flapping wing blades for vertical axis windmill.
To achieve these goals, the technical solution adopted in the present invention is:
For two flapping wing blades for vertical axis aerogenerator, it is characterized in that, comprising:
Blade body, comprises leaf head and blade afterbody;
Accessory lobes parts, comprise two about blade body be arranged on axisymmetricly blade afterbody flapping wing, two be fixed on Runner assembly on blade afterbody and two telescopic components be fixed on blade afterbody, one end of each flapping wing is rotatedly connected by a Runner assembly and blade afterbody, and each Runner assembly is connected by a telescopic component with between blade body; And
Drive unit, drive unit is connected with telescopic component, control gear by vertical axis aerogenerator controls, and drives telescopic component to elongate or shorten intended distance, and then drives corresponding flapping wing to turn to the corresponding position of this intended distance along corresponding Runner assembly.
Technological scheme of the present invention is further characterized in that Runner assembly is rotating shaft.
Technological scheme of the present invention is further characterized in that telescopic component comprises the flexible rod that can elongate or shorten and the hinge be connected with Runner assembly, and flexible rod one end is fixed on blade afterbody, and the other end is connected with hinge.
Technological scheme of the present invention is further characterized in that flexible rod is hydraulically extensible bar.
Technological scheme of the present invention is further characterized in that hinge is rudder face hinge.
Technological scheme of the present invention is further characterized in that flexible rod is connected with drive unit, and drive unit drives flexible rod to elongate or shorten.
The effect of invention and effect
Compared with background technique, the two flapping wing blades for vertical axis windmill provided by the present invention have the following advantages and good effect:
1. startability is good
Technological scheme of the present invention arranges two flapping wings at blade afterbody, by the rotation driving telescopic component to elongate or shorten control two flapping wings, achieve the Active Flow Control to the aeroperformance of blade and adjustment, thus under different wind regime, wind energy conversion system is made all to be in optimal operational condition, compared with background technique, startability is also significantly improved.
2. aeroperformance is controlled
Technological scheme of the present invention, when wind energy conversion system starts, by regulating the pivot angle between two flapping wings, increasing lift thus increasing wind energy conversion system rotating speed, while raising wind energy conversion system startability, also improve power stage.
3. protect wind energy conversion system, extend wind energy conversion system working life
Technological scheme of the present invention, when high wind speed, by regulating two flapping wing pivot angles, increasing resistance thus reducing wind energy conversion system rotating speed, can play protection wind energy conversion system and is without prejudice and reduces the effect of braking device load, have the effect extending wind energy conversion system working life.
Accompanying drawing explanation
Fig. 1 is the two flapping wing blades stereogram in an embodiment for vertical axis windmill involved in the present invention;
Fig. 2 is the two flapping wing blades plan view in an embodiment for vertical axis windmill involved in the present invention;
Fig. 3 is the sectional drawing along the A-A face of Fig. 2 in embodiment;
Fig. 4 is the two flapping wing blades partial structurtes schematic diagram in an embodiment for vertical axis windmill involved in the present invention;
Fig. 5 is the two flapping wing blades plan view in an embodiment for vertical axis windmill involved in the present invention; And
Fig. 6 rotates explanatory drawing along the flapping wing of the section in the A-A face of Fig. 2 in embodiment.
Embodiment
Below in conjunction with accompanying drawing, the concrete example of the two flapping wing blades for vertical axis windmill involved in the present invention is further described.
< embodiment >
As shown in Fig. 1 ~ 5, the two flapping wing blades 10 for vertical axis windmill that the present embodiment provides comprise the drive unit do not shown in blade body 11, accessory lobes parts 12 and figure.
Blade body 11 comprises leaf head 111, blade afterbody 112 and is fixedly mounted on the first bearing 113 and the second bearing 114 on blade afterbody 112.
Accessory lobes parts 12 comprise two flapping wings 13, two being arranged on blade afterbody 112 axisymmetricly about blade body 11 be fixed on Runner assembly 14 on blade afterbody 112 and two be fixed on telescopic component 15 on blade afterbody 112.Two flapping wings 13 comprise the first flapping wing 131 and the first flapping wing 132, and Runner assembly 14 is rotating shaft, comprises the first rotating shaft 141 and the second rotating shaft 142.Flapping wing 13 is rotatedly connected by Runner assembly 14 and blade afterbody 112.Telescopic component 15 comprises the first telescopic rod 151, second telescopic rod 152, first hinge 153 and the first hinge 154, first telescopic rod 151 and the second telescopic rod 152 and is hydraulic pressure telescopic rod.
One end of first telescopic rod 151 is connected with the first rotating shaft 141 by the first hinge 153, and the other end and the first bearing 113 are fixedly linked.One end of second telescopic rod 152 is connected with the second rotating shaft 142 by the second hinge 154, and the other end and the second bearing 114 are fixedly linked.When the first telescopic rod 151 elongates or shortens, the first rotating shaft 141 is given by the first hinge 153 transmission, first rotating shaft 141 is rotated, the first flapping wing 131 is driven to move in a circle along the first rotating shaft 141, in like manner, when the second telescopic rod 152 elongates or shortens, the second flapping wing 132 is driven to move in a circle along the second rotating shaft 142.
Drive unit comprises the first motor 161 be arranged on the first telescopic rod 151 and the second motor 162 be arranged on the second telescopic rod 152.This drive unit controls by the control gear of vertical axis aerogenerator, the control gear of vertical axis aerogenerator is according to wind speed and wind direction, calculate the distance that the first telescopic rod 151 and the second telescopic rod 152 elongate or shorten, be intended distance, and according to this reservation distance, send corresponding telescoping instruction to drive unit, according to this telescoping instruction, first motor 161 drives the first telescopic rod 151 to elongate or shorten intended distance, second motor 162 drives the second telescopic rod 152 to elongate or shorten intended distance, and then drive corresponding flapping wing 13 to turn to the corresponding position of intended distance along corresponding rotating shaft 14.
As Fig. 3, shown in 4, when the first flapping wing 131 and the second flapping wing 132 do not rotate, when namely the two is 180 ° with the angle of blade body 11, the position of the first flapping wing 131 and the second flapping wing 132 is called original position.As shown in 6-1 in Fig. 6, when drive unit drives the first telescopic rod 151 and the second telescopic rod 152 to shorten according to telescoping instruction, first flapping wing 131 is in being rotated counterclockwise, second flapping wing 132 is in turning clockwise, thus turning to the corresponding position of intended distance, the first flapping wing 131 and the second flapping wing 132 and blade body 11 are in " Y " font.As shown in 6-2 in Fig. 6, when the first telescopic rod 151 shortens, the second telescopic rod 152 extends, and the first flapping wing 131 and the second flapping wing 132 are all rotated counterclockwise, thus turn to the corresponding position of intended distance.As shown in 6-3 in Fig. 6, according to corresponding telescoping instruction, the first flapping wing 131 can also be carried out and be rotated counterclockwise, the rotation that the second flapping wing 132 keeps original position constant, thus turn to the corresponding position of intended distance.As shown in 6-4 in Fig. 6, according to corresponding telescoping instruction, can also carry out the first flapping wing 131 and keep original position constant, the second flapping wing 132 is rotated counterclockwise, thus turns to the corresponding position of intended distance.As shown in 6-5 in Fig. 6, according to corresponding telescoping instruction, can also be that the first flapping wing 131 second flapping wing 132 is all rotated counterclockwise, thus turn to the corresponding position of intended distance.
When use is provided with the wind energy conversion system of the two flapping wing blades 10 for vertical axis windmill that the present embodiment provides, in the startup wind energy conversion system stage, if the control system of wind energy conversion system detect incoming flow wind speed be greater than incision wind speed but difficulty in starting time, this control system sends a signal to drive unit, first motor 161 and the second motor 162 drive the first telescopic rod 151 and the second telescopic rod 152 to elongate or shorten respectively, regulate the length of telescopic component 15, control system controls to elongate or shorten when the first telescopic rod 151 is different with the second telescopic rod 152.When the first telescopic rod 151 shortens, the second telescopic rod 152 extends, and the first flapping wing 131 and the second flapping wing 132 are rotated counterclockwise, and changes the aeroperformance of two flapping wing blade 10, makes wind energy conversion system be able to self-starting.When wind energy conversion system rotating speed is in normal range (NR), then regulated the length of telescopic rod by same mode, original position is recalled in the position of the first flapping wing 131 and the second flapping wing 132.
Run well the stage at wind energy conversion system; if detect that wind energy conversion system rotating speed is greater than design speed; then the intelligent control system of vertical axis windmill sends a signal to drive unit; first motor 161 and the second motor 162 drive the first telescopic rod 151 and the second telescopic rod 152 to shorten respectively; thus regulate the first flapping wing 131 and the angle between the second flapping wing 132 and primary blades; make the first flapping wing 131 and the second flapping wing 132 and blade body 11 in " Y " font; change the aeroperformance of two flapping wing blade 10; thus reach the effect of deceleration, the safe operation of protection wind energy conversion system.When wind energy conversion system rotating speed is in normal range (NR), then by same mode, original position is recalled in the position of the first flapping wing 131 and the second flapping wing 132.
The effect of embodiment and effect
Compared with background technique, the two flapping wing blades for vertical axis windmill that the present embodiment provides have the following advantages and good effect:
1. startability is good
The technological scheme of the present embodiment arranges two flapping wings at blade afterbody, by the rotation driving telescopic component to elongate or shorten control two flapping wings, achieve the Active Flow Control to the aeroperformance of blade and adjustment, thus under different wind regime, wind energy conversion system is made all to be in optimal operational condition, compared with background technique, startability is also significantly improved.
2. aeroperformance is controlled
The technological scheme of the present embodiment, when wind energy conversion system starts, by regulating the pivot angle between two flapping wings, increasing lift thus increasing wind energy conversion system rotating speed, while raising wind energy conversion system startability, also improve power stage.
3. protect wind energy conversion system, extend wind energy conversion system working life
The technological scheme of the present embodiment, when high wind speed, by regulating two flapping wing pivot angles, increasing resistance thus reducing wind energy conversion system rotating speed, can play protection wind energy conversion system and is without prejudice and reduces the effect of braking device load, have the effect extending wind energy conversion system working life.
Certainly, the two flapping wing blades for vertical axis windmill involved in the present invention are not merely defined in the content in above-described embodiment.Above structure be only the present invention conceive under basic explanation, and according to any equivalent transformation that technological scheme of the present invention is done, all belong to protection scope of the present invention.
Claims (6)
1., for two flapping wing blades for vertical axis aerogenerator, it is characterized in that, comprising:
Blade body, comprises leaf head and blade afterbody;
Accessory lobes parts, comprise two about described blade body be arranged on axisymmetricly described blade afterbody flapping wing, two be fixed on Runner assembly on described blade afterbody and two telescopic components be fixed on described blade afterbody, one end of each described flapping wing is rotatedly connected by a described Runner assembly and described blade afterbody, and each described Runner assembly is connected by a described telescopic component with between described blade body; And
Drive unit, described drive unit is connected with described telescopic component, drives described telescopic component to elongate or shorten intended distance, and then drives corresponding described flapping wing to turn to the corresponding position of this intended distance along corresponding described Runner assembly.
2. the two flapping wing blades for vertical axis aerogenerator according to claim 1, is characterized in that:
Wherein, described Runner assembly is rotating shaft.
3. the two flapping wing blades for vertical axis aerogenerator according to claim 1, is characterized in that:
Wherein, described telescopic component comprises the flexible rod that can elongate or shorten and the hinge be connected with described Runner assembly, and described flexible rod one end is fixed on described blade afterbody, and the other end is connected with described hinge.
4. the two flapping wing blades for vertical axis aerogenerator according to claim 3, is characterized in that:
Wherein, described flexible rod is hydraulically extensible bar.
5. the two flapping wing blades for vertical axis aerogenerator according to claim 3, is characterized in that:
Wherein, described hinge is rudder face hinge.
6. the two flapping wing blades for vertical axis aerogenerator according to claim 3, is characterized in that:
Wherein, described flexible rod is connected with described drive unit, and described drive unit drives described flexible rod to elongate or shorten.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410395897.2A CN104265561A (en) | 2014-08-13 | 2014-08-13 | Double-flapping wing blade for vertical axis wind turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410395897.2A CN104265561A (en) | 2014-08-13 | 2014-08-13 | Double-flapping wing blade for vertical axis wind turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104265561A true CN104265561A (en) | 2015-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410395897.2A Pending CN104265561A (en) | 2014-08-13 | 2014-08-13 | Double-flapping wing blade for vertical axis wind turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104265561A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106894948A (en) * | 2017-03-07 | 2017-06-27 | 上海理工大学 | Based on bionic vertical axis windmill |
| CN111550364A (en) * | 2020-06-15 | 2020-08-18 | 李颖 | Three-dimensional wind field power generation system based on wind power monitoring |
| CN113665807A (en) * | 2021-08-31 | 2021-11-19 | 中国船舶科学研究中心 | Novel flapping wing propulsion device and working process |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1281740A1 (en) * | 1985-04-18 | 1987-01-07 | Московский Электротехнический Институт Связи | Wind wheel |
| CN201407125Y (en) * | 2009-03-16 | 2010-02-17 | 廖岳威 | Blade with empennage of vertical-axis windmill |
| KR20110046155A (en) * | 2009-10-28 | 2011-05-04 | 주식회사 보스엔지니어링 | vertical axis wind turbine |
| CN202381254U (en) * | 2011-12-09 | 2012-08-15 | 河海大学 | Lift-type blade |
| CN203285619U (en) * | 2013-02-05 | 2013-11-13 | 上海理工大学 | Sectional blade and wind power generator |
-
2014
- 2014-08-13 CN CN201410395897.2A patent/CN104265561A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1281740A1 (en) * | 1985-04-18 | 1987-01-07 | Московский Электротехнический Институт Связи | Wind wheel |
| CN201407125Y (en) * | 2009-03-16 | 2010-02-17 | 廖岳威 | Blade with empennage of vertical-axis windmill |
| KR20110046155A (en) * | 2009-10-28 | 2011-05-04 | 주식회사 보스엔지니어링 | vertical axis wind turbine |
| CN202381254U (en) * | 2011-12-09 | 2012-08-15 | 河海大学 | Lift-type blade |
| CN203285619U (en) * | 2013-02-05 | 2013-11-13 | 上海理工大学 | Sectional blade and wind power generator |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106894948A (en) * | 2017-03-07 | 2017-06-27 | 上海理工大学 | Based on bionic vertical axis windmill |
| CN111550364A (en) * | 2020-06-15 | 2020-08-18 | 李颖 | Three-dimensional wind field power generation system based on wind power monitoring |
| CN111550364B (en) * | 2020-06-15 | 2021-08-17 | 广西灵山大怀山新能源有限公司 | Three-dimensional wind field power generation system based on wind power monitoring |
| CN113665807A (en) * | 2021-08-31 | 2021-11-19 | 中国船舶科学研究中心 | Novel flapping wing propulsion device and working process |
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Application publication date: 20150107 |
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