CN109751182B - Novel mechanical active deformation blade for vertical axis wind turbine - Google Patents
Novel mechanical active deformation blade for vertical axis wind turbine Download PDFInfo
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- CN109751182B CN109751182B CN201910208118.6A CN201910208118A CN109751182B CN 109751182 B CN109751182 B CN 109751182B CN 201910208118 A CN201910208118 A CN 201910208118A CN 109751182 B CN109751182 B CN 109751182B
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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
- Y02E10/728—Onshore wind turbines
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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 discloses a novel mechanical active deformation blade for a vertical axis wind turbine, which is used for reducing the consumption of electric energy to improve the utilization rate of wind energy, and comprises the following components: a middle fixed block St-rib; a first rotating wing having a first rotating block H-rib and a second rotating block S-rib sequentially disposed at the front side of the middle fixed block St-rib; a second rotating wing having a third rotating block T-rib and a fourth rotating block E-rib sequentially disposed at the rear side of the middle fixed block St-rib; the deformation transmission part is provided with a first transmission component for driving the first rotating wing to rotate, a second transmission component for driving the second rotating wing to rotate, an input shaft which is arranged in the middle fixing section and penetrates through an input shaft hole on the middle fixing block St-rib, a first synchronous wheel which is sleeved on the input shaft and is used for driving the first transmission component and the second transmission component to do reverse and opposite motions, and a deformation driving part, wherein the deformation driving part is provided with a motor, the output end of which is connected with the input shaft, and the motor is used for driving the input shaft and the first synchronous wheel to rotate.
Description
Technical Field
The invention relates to a wind turbine blade, in particular to a novel mechanical active deformation blade for a vertical axis wind turbine.
Background
Wind turbines are generally classified into horizontal axis wind turbines and vertical axis wind turbines according to the structure of the wind wheel and the position thereof in the air stream, and the vertical axis wind turbines are classified into Darrieus type (lift type) wind turbines and Savonius type (drag type) wind turbines. The wind energy utilization rate of the horizontal axis wind turbine is highest and is nearly fifty percent, and the horizontal axis wind turbine is the most widely applied main stream machine type with the most pure technology at present and is also the main equipment for generating the current wind energy. Compared with a horizontal axis wind turbine, the vertical axis wind turbine has the advantages of no need of wind, low noise, flexibility, convenience, safety, reliability, attractive appearance, simple maintenance and the like, and can be widely applied to the distributed power supply fields of public lighting in urban central areas, resident families, large-scale outdoor advertisements, telecommunication base stations, oil fields, expressway whole-course monitoring systems, pleasure boats, villages and the like. The Darrieus type vertical axis wind turbine mainly performs work by torque generated by the resultant force of the lift force and the resistance of the blades of the wind turbine under the action of incoming wind, has higher wind energy utilization rate compared with a Savonius type vertical axis wind turbine which generates torque by resistance, draws more and more scholars' attention in recent years, is a very good supplementary form in wind energy utilization, has wide application prospect, and is a research hot spot in the current academic world in trying to improve the wind energy utilization rate of the vertical axis wind turbine.
In order to improve the aerodynamic performance of a lift type vertical axis wind turbine, a plurality of control methods are currently developed, auxiliary devices are added on the original airfoil type or the wind turbine, and the flow of fluid is controlled, and the control methods are divided into active control and passive control according to the consumption of additional work or not. The passive control is to add a plurality of plates, small wing sections, small cylinders and the like around the wing sections, so that the flow separation of the wing sections under a large attack angle can be controlled; or a plurality of baffle plates or guide vanes are added around the vertical axis fan rotor to change the flow direction of the gas and increase the flow speed of the gas, so that the wind energy can be better utilized. The active control is externally added with driving equipment, the vertical axis wind turbine can enable the wing profile to rotate, deform and swing at the tail edge in the rotation process, the attack angle of the wing profile is changed in a phase angle with smaller torque, the aerodynamic performance of the wing profile is improved, and the integral aerodynamic performance of the vertical axis wind turbine is improved.
In the prior art, a passive deformation mode and an active deformation mode are adopted in the deformed blade of the lift-type vertical axis wind turbine, the requirement on the material property of the surface skin of the blade is higher for the passive deformation, the curvature smoothness of the suction surface of the blade is ensured in the deformation, a more complex deformation mechanism is required in the blade, and the blade is not easy to process and install. Moreover, the deformation of the blades passively generated has instability, the deformation of different deformation amounts can not be accurately generated under the angle of deformation, and the wind turbine can not achieve the optimal pneumatic effect. Accordingly, there is a need for a blade that can solve the above-described problems.
Disclosure of Invention
The present invention has been made to solve the above problems, and an object of the present invention is to provide a novel mechanical active deformation blade that can be used in a vertical axis wind turbine.
The invention provides a novel mechanical active deformation blade for a vertical axis wind turbine, which is used for reducing the consumption of electric energy to improve the utilization rate of wind energy, and has the characteristics that: a middle fixed block St-rib; a first rotating wing having a first rotating block H-rib and a second rotating block S-rib sequentially disposed at the front side of the middle fixed block St-rib; a second rotating wing having a third rotating block T-rib and a fourth rotating block E-rib sequentially disposed at the rear side of the middle fixed block St-rib; the deformation transmission part is provided with a first transmission component for driving the first rotating wing to rotate, a second transmission component for driving the second rotating wing to rotate, an input shaft which is arranged in the middle fixed block St-rib and penetrates through an input shaft hole on the middle fixed block St-rib, a first synchronous wheel which is sleeved on the input shaft and is used for driving the first transmission component and the second transmission component to do reverse movement, and a deformation driving part which is provided with a motor with an output end connected with the input shaft and is used for driving the input shaft and the first synchronous wheel to rotate, wherein the first transmission component comprises a first transmission shaft which is arranged between the middle fixed block St-rib and the second rotating block S-rib, a first spiral bevel gear set which is sleeved on the first transmission shaft, a first synchronous belt compensator which is sleeved on the first transmission shaft and matched with the first synchronous wheel, a second transmission shaft which is arranged between the second rotating block S-rib and the first rotating block H-rib, and a second synchronous wheel which is sleeved on the second transmission shaft, the second transmission assembly comprises a third transmission shaft arranged between the middle fixed block St-rib and the third rotating block T-rib, a second spiral bevel gear set sleeved on the third transmission shaft, a second synchronous belt compensator sleeved on the third transmission shaft and matched with the first synchronous wheel, a fourth transmission shaft arranged between the third rotating block T-rib and the fourth rotating block E-rib and a third synchronous wheel sleeved on the fourth transmission shaft, the first synchronous belt compensator and the second synchronous belt compensator are respectively positioned at two sides of the first synchronous wheel so as to form a rotating fit with the first synchronous wheel in the opposite direction, the motor drives the input shaft, the first spiral bevel gear set and the second spiral bevel gear set are driven to rotate in a rotating mode, so that the second rotating block S-rib and the third rotating block T-rib do centering movement in opposite directions, meanwhile, the first synchronous wheel connected with the input shaft is driven by the input shaft, the first rotating block H-rib does centering movement in the same direction as the second rotating block S-rib, and the fourth rotating block E-rib does centering movement in the same direction as the third rotating block T-rib, and therefore integral bending is changed, and deformation is achieved.
In the novel mechanical active deformation blade applicable to the vertical axis wind turbine, the novel mechanical active deformation blade can also have the following characteristics: the center of the middle fixed block St-rib is arranged at 40% of the chord length, and the rotating centers of the first rotating block H-rib, the second rotating block S-rib, the third rotating block T-rib and the fourth rotating block E-rib are sequentially arranged at 15%, 30%, 49% and 70% of the chord length.
In the novel mechanical active deformation blade applicable to the vertical axis wind turbine, the novel mechanical active deformation blade can also have the following characteristics: the transmission ratio among the first rotating block H-rib, the second rotating block S-rib, the middle fixed block St-rib, the third rotating block T-rib and the fourth rotating block E-rib is 1:2:2:2:2.
In the novel mechanical active deformation blade applicable to the vertical axis wind turbine, the novel mechanical active deformation blade can also have the following characteristics: wherein the motor is a 57-step motor equipped with a speed reducer.
In the novel mechanical active deformation blade applicable to the vertical axis wind turbine, the novel mechanical active deformation blade can also have the following characteristics: the first rotating block H-rib, the second rotating block S-rib, the middle fixed block St-rib, the third rotating block T-rib and the fourth rotating block E-rib are all provided with surface skins.
In the novel mechanical active deformation blade applicable to the vertical axis wind turbine, the novel mechanical active deformation blade can also have the following characteristics: the surface skin is provided with a wing plate, a net surface adhesive layer, a PET adhesive layer and a PDMS film which are sequentially arranged from inside to outside.
Effects and effects of the invention
According to the novel mechanical active deformation blade for the vertical axis wind turbine, the first rotating block H-rib, the second rotating block S-rib, the middle fixed block St-rib, the third rotating block T-rib and the fourth rotating block E-rib adopt sectional structures, so that the novel mechanical active deformation blade is convenient to detach and install; because the adopted deformation transmission part can change the bending degree of the first rotating wing and the second rotating wing through the driving of the motor, the angle of the blade can be conveniently changed; because the adopted motor can control the rotation angle of the motor to be within 10 degrees through the singlechip, and the optimal deformation of the pneumatic performance of the blade can be achieved through the deformation transmission part, the utilization rate of the vertical axis wind turbine can be increased by more than 3 percent through consuming very little electric energy. Therefore, the novel mechanical active deformation blade for the vertical axis wind turbine is simple in structure, easy to process in all parts, capable of achieving reciprocating deformation, stable in deformation, capable of accurately generating deformation with different deformation amounts under the angle required to be deformed, and capable of enabling the wind turbine to achieve the optimal aerodynamic effect.
Drawings
FIG. 1 is a schematic illustration of a novel mechanical active deformation blade usable in a vertical axis wind turbine in accordance with an embodiment of the present invention;
FIG. 2 is a side view of a center fixed block and two rotating wings of a novel mechanical active deformation blade usable in a vertical axis wind turbine in an embodiment of the present invention;
FIG. 3 is a pictorial view of a novel mechanical active deformation blade useful in a vertical axis wind turbine in an embodiment of the present invention;
FIG. 4 is a schematic illustration of the structure of the skin of a novel mechanical active deformation blade usable in a vertical axis wind turbine in an embodiment of the invention;
FIG. 5 is a schematic illustration of a skin deformation zone of a novel mechanical active deformation blade for a vertical axis wind turbine applying a pre-load force in an embodiment of the present invention;
FIG. 6 is a top view of the effect of a novel mechanical active deformation blade in a vertical axis wind turbine with a PDMS film attached;
FIG. 7 is a schematic view of a partial structure of a deformation drive of a novel mechanical active deformation blade usable in a vertical axis wind turbine in an embodiment of the present invention;
FIG. 8 is a schematic view of a novel mechanical active deformation blade degeneration for use in a vertical axis wind turbine in accordance with an embodiment of the present invention;
fig. 9 is a schematic diagram of the amount of blade deformation at d=0.0875 in the example of the present invention;
fig. 10 is a schematic diagram of the blade deformation amount at d=0.125 in the embodiment of the present invention;
fig. 11 is a schematic view of the deformation amount of the blade when d=0.15 in the embodiment of the invention;
FIG. 12 is a graph of lift coefficient at different d values in an embodiment of the invention;
fig. 13 is a graph of lift-to-drag ratio at different values of d in an embodiment of the invention.
Detailed Description
In order to make the technical means and effects of the present invention easy to understand, the present invention will be specifically described with reference to the following examples and the accompanying drawings.
Examples:
as shown in fig. 1 to 3, a novel mechanical active deformation blade 100 for a vertical axis wind turbine according to the present embodiment is used for reducing power consumption to improve wind energy utilization, and can implement a reciprocating cycle to change camber, and includes: the middle fixing block St-rib10, a first rotating wing, a second rotating wing, a deformation transmission part and a deformation driving part.
The airfoil of the novel mechanical active deformation blade 100 which can be used for the vertical axis wind turbine is NACA4412 airfoil, which ensures the curvature of the suction surface.
The center of the middle fixed block St-rib10 is set at 40% of the chord length.
The first rotating wing has a first rotating block H-rib21 and a second rotating block S-rib22 sequentially disposed at the front side of the middle fixed block St-rib 10.
The second rotating wing has a third rotating block T-rib31 and a fourth rotating block E-rib32 sequentially disposed at the rear side of the middle fixed block St-rib 10.
The rotation centers of the first rotating block H-rib21, the second rotating block S-rib22, the third rotating block T-rib31 and the fourth rotating block E-rib32 are sequentially arranged at 15%, 30%, 49% and 70% of the chord length.
The transmission ratio among the first rotating block H-rib21, the second rotating block S-rib22, the middle fixed block St-rib10, the third rotating block T-rib31 and the fourth rotating block E-rib32 is 1:2:2:2:2.
As shown in fig. 4 to 6, the first rotating block H-rib21, the second rotating block S-rib22, the intermediate fixed block St-rib10, the third rotating block T-rib31, and the fourth rotating block E-rib32 are each provided with a skin.
The skin layer has a wing plate 51, a mesh adhesive layer 52, a PET adhesive layer 53, and a PDMS film 54, which are sequentially disposed from inside to outside.
The thickness of the wing plate 51 was 1.5mm, the thickness of the web adhesive layer 52 was 150 μm, the thickness of the PET adhesive layer was 200 μm, and the thickness of the PDMS film 54 was 200 μm.
The thickness of the contour line of the wing plate 51 is 1.5mm greater than that of the NACA4412 contour line, so that the wing plate is beneficial to fixing the surface skin in the later period, and the singular points and the surface skin which appear when all the rotating blocks rotate mutually can keep the distance, thereby ensuring the continuity of the curvature of the surface of the blade, solving the series of problems that the singular points are easy to appear when the rotating blocks rotate, the singular points appear at the maximum thickness position are obvious due to rotation, the curvature of the surface of the blade is discontinuous due to the singular points, and the aerodynamic performance of the blade is influenced.
The mesh surface adhesive layer 52 is used for fixing the wing plate 51 and the PET adhesive layer 53, and because the PDMS film 54 and the PET adhesive layer 53 have strong adhesive force, the skin can be fixed in a direct adhesive mode of the two films, and the pretightening force can be conveniently added at the gaps between the rotating blocks and the fixed blocks, so that the pressure surface can be kept smooth when the blade is deformed, and the problems that when the deformed blade realizes the camber change, the skin of the suction surface is stretched and the skin of the pressure surface is compressed to form folds along the expanding direction are avoided.
As shown in fig. 1 and 7, the deformation transmission part is provided with a first transmission component for driving the first rotating wing to rotate, a second transmission component for driving the second rotating wing to rotate, an input shaft which is arranged inside the middle fixed block St-rib10 and passes through an input shaft hole 11 on the middle fixed block St-rib10, and a first synchronous wheel 41 which is sleeved on the input shaft and is used for driving the first transmission component and the second transmission component to do reverse and opposite movements.
The first transmission assembly includes a first transmission shaft 4201 disposed between the middle fixed block St-rib10 and the second rotating block S-rib22, a first spiral bevel gear set 4202 sleeved on the first transmission shaft 4201, a first synchronous belt compensator 4203 sleeved on the first transmission shaft 4201 and matched with the first synchronous wheel 41, a second transmission shaft 4204 disposed between the second rotating block S-rib22 and the first rotating block H-rib21, and a second synchronous wheel 4205 sleeved on the second transmission shaft 4204.
The second transmission assembly comprises a third transmission shaft 4301 arranged between the middle fixed block St-rib10 and the third rotating block T-rib31, a second spiral bevel gear set 4302 sleeved on the third transmission shaft 4301, a second synchronous belt compensator 4303 sleeved on the third transmission shaft 4301 and matched with the first synchronous wheel 41, a fourth transmission shaft 4304 arranged between the third rotating block T-rib31 and the fourth rotating block E-rib32, and a third synchronous wheel 4305 sleeved on the fourth transmission shaft 4304.
The first timing belt compensator 4203 and the second timing belt compensator 4303 are respectively located on both sides of the first timing wheel 41 so as to form a rotational fit with the first timing wheel 41 in opposite directions.
The deformation driving part has a motor with an output end connected with the input shaft for driving the input shaft and the first synchronizing wheel 41 to rotate.
The motor is a 57-step motor equipped with a speed reducer.
The motor drives the first spiral bevel gear set and the second spiral bevel gear set to rotate through driving the input shaft, so that the second rotating block S-rib and the third rotating block T-rib do centering movements in opposite directions, meanwhile, the first synchronous wheel connected with the input shaft is driven by the input shaft, so that the first rotating block H-rib does centering movements in the same direction as the second rotating block S-rib, and the fourth rotating block E-rib does centering movements in the same direction as the third rotating block T-rib, and therefore integral bending is changed, and deformation is achieved.
The motor drives the first synchronous belt compensator 4203 and the second synchronous belt compensator 4303, which are matched with the first synchronous wheel 41, to operate by driving the input shaft and the first synchronous wheel 41 to rotate, so that the rotation directions of the first spiral bevel gear set 4202 and the second spiral bevel gear set 4302 are opposite, and the second rotating block S-rib22 and the third rotating block T-rib31 are made to perform opposite centering movements, and simultaneously, the first synchronous wheel connected with the input shaft is driven by the input shaft, so that the first rotating block H-rib21 is made to perform centering movements in the same direction as the second rotating block S-rib22, and the fourth rotating block E-rib32 is made to perform centering movements in the same direction as the third rotating block T-rib31, so that the overall bending degree is changed, and deformation is achieved.
In the embodiment, except for the middle fixing block St-rib10 and the deformation transmission part which are processed by metal, all parts except for the motor are printed by an industrial grade 3D printer, and a photosensitive resin material with higher smoothness is used, so that a rotating area during relative movement among the parts shows better smoothness.
In this embodiment, the deformation factor is defined by using a dimensionless trailing edge deflection distance d=d/c, where c is the chord length and d is the deflection distance of the fourth rotor 32, and a blade deflection is schematically shown in fig. 8.
As shown in fig. 9 to 11, the blade deformation effect at 3d x values measured in this embodiment can be shown as follows: the amount of blade deformation increases with increasing d.
As shown in fig. 12 and 13, it can be seen that: the aerodynamic performance of the blade can be greatly improved in a large range of attack angle range by properly adjusting the camber of the blade, and the original aerodynamic performance is basically maintained in the rest attack angle range.
Effects and effects of the examples
According to the novel mechanical active deformation blade capable of being used for the vertical axis wind turbine, the first rotating block H-rib, the second rotating block S-rib, the middle fixed block St-rib, the third rotating block T-rib and the fourth rotating block E-rib adopt sectional structures, so that the novel mechanical active deformation blade is convenient to detach and install; because the adopted deformation transmission part can change the bending degree of the first rotating wing and the second rotating wing through the driving of the motor, the angle of the blade can be conveniently changed; because the adopted motor can control the rotation angle of the motor to be within 10 degrees through the singlechip, and the optimal deformation of the pneumatic performance of the blade can be achieved through the deformation transmission part, the utilization rate of the vertical axis wind turbine can be increased by more than 3 percent through consuming very little electric energy. Therefore, the novel mechanical active deformation blade applicable to the vertical axis wind turbine is simple in structure, each part of structure is easy to process, reciprocating deformation can be achieved, deformation is stable, deformation of different deformation amounts can be accurately generated under the angle of deformation, and the wind turbine achieves the optimal aerodynamic effect.
According to the novel mechanical active deformation blade applicable to the vertical axis wind turbine, the circle centers of the middle fixed block St-rib are arranged at 40% of the chord length, and the rotation circle centers of the first rotating block H-rib, the second rotating block S-rib, the third rotating block T-rib and the fourth rotating block E-rib are sequentially arranged at 15%, 30%, 49% and 70% of the chord length, so that the space required for installing the deformation transmission part can be provided.
The above embodiments are preferred examples of the present invention, and are not intended to limit the scope of the present invention.
Claims (6)
1. A novel mechanical active deformation blade for a vertical axis wind turbine for reducing power consumption to increase wind energy utilization, comprising:
a middle fixed block St-rib;
a first rotating wing having a first rotating block H-rib and a second rotating block S-rib sequentially disposed at the front side of the middle fixed block St-rib;
a second rotating wing having a third rotating block T-rib and a fourth rotating block E-rib sequentially disposed at the rear side of the middle fixed block St-rib;
a deformation transmission part, which is provided with a first transmission component for driving the first rotating wing to rotate, a second transmission component for driving the second rotating wing to rotate, an input shaft which is arranged inside the middle fixed block St-rib and passes through an input shaft hole on the middle fixed block St-rib, a first synchronous wheel which is sleeved on the input shaft and is used for driving the first transmission component and the second transmission component to do reverse and opposite motions, and
a deformation driving part, which is provided with a motor with an output end connected with the input shaft and used for driving the input shaft and the first synchronous wheel to rotate,
wherein the first transmission assembly comprises a first transmission shaft arranged between the middle fixed block St-rib and the second rotating block S-rib, a first spiral bevel gear set sleeved on the first transmission shaft, a first synchronous belt compensator sleeved on the first transmission shaft and matched with the first synchronous wheel, a second transmission shaft arranged between the second rotating block S-rib and the first rotating block H-rib and a second synchronous wheel sleeved on the second transmission shaft,
the second transmission assembly comprises a third transmission shaft arranged between the middle fixed block St-rib and the third rotating block T-rib, a second spiral bevel gear set sleeved on the third transmission shaft, a second synchronous belt compensator sleeved on the third transmission shaft and matched with the first synchronous wheel, a fourth transmission shaft arranged between the third rotating block T-rib and the fourth rotating block E-rib and a third synchronous wheel sleeved on the fourth transmission shaft,
the first synchronous belt compensator and the second synchronous belt compensator are respectively positioned at two sides of the first synchronous wheel so as to form a running fit with the first synchronous wheel in opposite directions,
the motor drives the first spiral bevel gear set and the second spiral bevel gear set to rotate through driving the input shaft, so that the second rotating block S-rib and the third rotating block T-rib do centering movements in opposite directions, meanwhile, the first synchronous wheel connected with the input shaft is driven by the input shaft, so that the first rotating block H-rib does centering movements in the same direction as the second rotating block S-rib, and the fourth rotating block E-rib does centering movements in the same direction as the third rotating block T-rib, and therefore integral bending is changed, and deformation is achieved.
2. The novel mechanical active deformation blade for a vertical axis wind turbine of claim 1, wherein:
wherein the center of the middle fixed block St-rib is arranged at 40% of the chord length,
the rotation centers of the first rotation block H-rib, the second rotation block S-rib, the third rotation block T-rib and the fourth rotation block E-rib are sequentially arranged at 15%, 30%, 49% and 70% of the chord length.
3. The novel mechanical active deformation blade for a vertical axis wind turbine of claim 1, wherein:
the transmission ratio among the first rotating block H-rib, the second rotating block S-rib, the middle fixed block St-rib, the third rotating block T-rib and the fourth rotating block E-rib is 1:2:2:2:2.
4. The novel mechanical active deformation blade for a vertical axis wind turbine of claim 1, wherein:
wherein the motor is a 57-step motor equipped with a speed reducer.
5. The novel mechanical active deformation blade for a vertical axis wind turbine of claim 1, wherein:
the first rotating block H-rib, the second rotating block S-rib, the middle fixed block St-rib, the third rotating block T-rib and the fourth rotating block E-rib are all provided with surface skin.
6. The novel mechanical active deformation blade for a vertical axis wind turbine of claim 5, wherein:
the surface skin is provided with a wing plate, a net surface adhesive layer, a PET adhesive layer and a PDMS film which are sequentially arranged from inside to outside.
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| CN102536643A (en) * | 2012-01-16 | 2012-07-04 | 哈尔滨工程大学 | Vertical axis wind turbine |
| CN103291540A (en) * | 2013-06-03 | 2013-09-11 | 河海大学常州校区 | Vertical axis wind turbine with bending line of straight-blade airfoil coincident with wind wheel moving trajectory |
| CN105863959A (en) * | 2016-04-13 | 2016-08-17 | 上海理工大学 | Mechanical self-adapting deformation blade |
| CN105927465A (en) * | 2016-05-31 | 2016-09-07 | 上海理工大学 | Magnetic deformation blade of vertical axis wind turbine |
| CN106545466A (en) * | 2016-12-07 | 2017-03-29 | 上海理工大学 | A kind of resistance-type vertical axis wind turbine |
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