An inflatable deformable vertical axis wind turbine blade mechanism

Abstract

The present invention discloses an inflatable deformable vertical axis wind turbine blade mechanism, which belongs to the technical field of wind power generation equipment. Air film blades are connected between blade arms, and a high-pressure gas pipeline is provided inside the air film blade. A high-pressure gas interface is formed at one end of the high-pressure gas pipeline, and the high-pressure gas interface is exposed at the end of the air film blade. The other end of the high-pressure gas pipeline is connected to the inner wall of the other end of the air film blade; the high-pressure gas pipeline conducts ventilation to the inside of the air film blade through a vent hole; the high-pressure gas pipeline is also connected to an airfoil control component, and the airfoil control component extends from one side of the inside of the air film blade to the other side of the inside of the air film blade; the curling deformation of the air film blade is adjusted by the airfoil control component, so that the air film blade can be converted between a lift-type blade and a drag-type blade. The present invention can adjust its own shape in dynamically changing complex wind conditions, improve energy capture efficiency, and can adapt to different wind speed conditions to ensure operational safety.

Description

Technical Field

[0001] The invention belongs to the technical field of wind power generation equipment, and in particular relates to an inflatable deformable vertical axis wind turbine blade mechanism. Background Art

[0002] As people's demand for renewable energy grows, wind energy, as a clean and sustainable energy source, has attracted widespread attention. In the field of wind energy utilization, vertical axis wind turbines have become a research hotspot due to their unique structure and operational advantages.

[0003] However, the traditional fixed blade design has obvious limitations in adapting to different wind speeds and wind directions, resulting in reduced energy capture efficiency. In addition, traditional blade materials are usually glass fiber and carbon fiber. Although they are strong and corrosion-resistant, the larger blade weight increases the structural burden and has poor flexibility, affecting the safety of vertical axis wind turbine operation. Summary of the invention

[0004] To this end, the present invention provides an inflatable deformable vertical axis wind turbine blade mechanism to solve the problems of low energy capture efficiency, poor flexibility and operational safety existing in traditional technologies.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: an inflatable deformable vertical axis wind turbine blade mechanism, comprising a main shaft, blade arms are connected to both ends of the main shaft, an air film blade is connected between the blade arms, a high-pressure gas pipeline is provided inside the air film blade, a high-pressure gas interface is formed at one end of the high-pressure gas pipeline, the high-pressure gas interface is exposed at the end of the air film blade, and the other end of the high-pressure gas pipeline is connected to the inner wall of the other end of the air film blade;

[0006] A vent hole is formed on the side of the high-pressure gas pipeline, and the high-pressure gas pipeline is connected to the interior of the air film blade through the vent hole; the high-pressure gas pipeline is also connected to an airfoil control component, and the airfoil control component extends from one side of the interior of the air film blade to the other side of the interior of the air film blade;

[0007] The curling deformation of the film blade is adjusted by the airfoil control assembly so that the film blade is converted between a lift-type blade and a drag-type blade.

[0008] As a preferred solution for the inflatable deformable vertical axis wind turbine blade mechanism, the vent holes are distributed in sequence and at equal intervals along the side of the high-pressure gas pipeline, and the distance between two adjacent vent holes is 5% to 10% of the total length of the high-pressure gas pipeline.

[0009] As a preferred solution for an inflatable deformable vertical-axis wind turbine blade mechanism, the high-pressure gas interface is provided with an air pump through a delivery pipeline, and the air pump delivers high-pressure gas to the inside of the high-pressure gas pipeline through the high-pressure gas interface. The high-pressure gas is delivered from the air vent to the inside of the air film blade so that the air film blade maintains a set geometric shape; the high-pressure gas forms a micro-positive pressure environment inside the air film blade.

[0010] As a preferred solution for the inflatable deformable vertical axis wind turbine blade mechanism, the internal and external pressure difference of the air film blade is not less than 400pa, and the pressure of the micro-positive pressure environment formed in the air film blade is adjusted according to the local wind speed. The pressure formula for adjusting the micro-positive pressure environment formed in the air film blade according to the local wind speed is:

[0011] ;

[0012] ;

[0013] Where P f is wind pressure; ρ is air density; v is wind speed; P m is the pressure inside the air film blade; S is the safety factor; P0 is the atmospheric pressure.

[0014] As a preferred solution for the inflatable deformable vertical axis wind turbine blade mechanism, a membrane sheet is distributed on one side of the high pressure gas pipeline relative to the air vent, and the high pressure gas pipeline is connected to the inner wall of the air film blade through the membrane sheet.

[0015] As a preferred solution for the inflatable deformable vertical axis wind turbine blade mechanism, the airfoil control assembly is spaced between two adjacent vents; the airfoil control assembly includes a support arm, a main arm, a secondary arm, an adjustment motor and a telescopic rod;

[0016] A docking hole is formed at one end of the support arm, and the support arm is connected to the high-pressure gas pipeline through the docking hole. The other end of the support arm is hinged to one end of the main arm, and the hinged portion of the support arm and the main arm is connected to the adjustment motor;

[0017] The other end of the main boom is hinged to the set position of the auxiliary boom through a pin shaft; one end of the telescopic rod is hinged to the back of the main boom, and the other end of the telescopic rod is hinged to the end of the auxiliary boom.

[0018] As a preferred solution of the inflatable deformable vertical axis wind turbine blade mechanism, the formula for controlling the relative position change between the support arm and the main arm through the regulating motor is:

[0019] ;

[0020] ;

[0021] Wherein, ω1 is the speed of the regulating motor; θ1 is the angle between the supporting arm and the main arm; τ is the torque of the regulating motor; J is the moment of inertia of the regulating motor; D is the damping effect of the regulating motor; K1 is the stiffness coefficient.

[0022] As a preferred solution for the inflatable deformable vertical axis wind turbine blade mechanism, the relative position change formula between the main boom and the auxiliary boom is:

[0023] ;

[0024] ;

[0025] Where, θ2 is the angle between the main boom and the auxiliary boom; L m The length of the main boom; L s is the length of the auxiliary boom; l is the telescopic distance of the telescopic rod; t is the operating time.

[0026] As a preferred solution for the inflatable deformable vertical axis wind turbine blade mechanism, when the wind speed is lower than 5m / s, the angle θ1 between the support arm and the main arm is increased, and the angle θ2 between the main arm and the auxiliary arm is increased, so that the curling degree of the air film blade becomes larger, and the air film blade is adjusted to a resistance type blade;

[0027] When the wind speed is 5-25m / s, the angle θ1 between the support boom and the main boom and the angle θ2 between the main boom and the auxiliary boom are reduced to reduce the curling degree of the air film blades and adjust the air film blades to lift-type blades;

[0028] When the wind speed is higher than 25m / s, the angle θ1 between the support boom and the main boom is increased, and the angle θ2 between the main boom and the auxiliary boom is increased to increase the curling degree of the air film blades and adjust the air film blades to resistance type blades.

[0029] As a preferred solution for the inflatable deformable vertical axis wind turbine blade mechanism, the curling deformation control formula of the air film blade is:

[0030] ;

[0031] Where v is the wind speed.

[0032] The present invention has the following advantages: since the air film blades are connected between the blade arms, a high-pressure gas pipeline is provided inside the air film blades, a high-pressure gas interface is formed at one end of the high-pressure gas pipeline, the high-pressure gas interface is exposed at the end of the air film blade, and the other end of the high-pressure gas pipeline is connected to the inner wall of the other end of the air film blade; a vent is formed on the side of the high-pressure gas pipeline, and the high-pressure gas pipeline conducts ventilation to the inside of the air film blade through the vent; the high-pressure gas pipeline is also connected to an airfoil control component, and the airfoil control component extends from one side of the inside of the air film blade to the other side of the inside of the air film blade; the curling deformation of the air film blade is adjusted by the airfoil control component, so that the air film blade is converted between a lift-type blade and a drag-type blade. The wind turbine blade mechanism of the present invention is lightweight, highly flexible and environmentally friendly, and can adjust its own shape in dynamically changing complex wind conditions, thereby improving energy capture efficiency; while maintaining low weight, the type of air film blade can be flexibly adjusted to adapt to different wind speed conditions and ensure operational safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0034] Figure 1 It is a three-dimensional schematic diagram of an inflatable deformable vertical axis wind turbine blade mechanism provided in an embodiment of the present invention;

[0035] Figure 2 It is a schematic diagram of the internal structure of an inflatable deformable vertical axis wind turbine blade provided in an embodiment of the present invention;

[0036] Figure 3 A schematic diagram of a combination of a high-pressure gas pipeline and an airfoil control assembly of an inflatable deformable vertical axis wind turbine blade mechanism provided in an embodiment of the present invention;

[0037] Figure 4 A schematic diagram of an airfoil control assembly of an inflatable deformable vertical axis wind turbine blade mechanism provided in an embodiment of the present invention;

[0038] Figure 5 It is a schematic diagram of the deformation of the inflatable deformable vertical axis wind turbine blade mechanism provided in an embodiment of the present invention.

[0039] In the figure, 1. main shaft; 2. blade support arm; 3. air film blade; 4. high-pressure gas pipeline; 5. high-pressure gas interface; 6. vent; 7. airfoil control assembly; 8. membrane connecting piece; 9. support arm; 10. main arm; 11. auxiliary arm; 12. adjustment motor; 13. telescopic rod. DETAILED DESCRIPTION

[0040] The following is a description of the implementation of the present invention by specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The embodiment of the present invention provides an inflatable deformable vertical axis wind turbine blade mechanism, comprising a main shaft 1, blade arms 2 are connected to both ends of the main shaft 1, air film blades 3 are connected between the blade arms 2, a high-pressure gas pipeline 4 is provided inside the air film blade 3, a high-pressure gas interface 5 is formed at one end of the high-pressure gas pipeline 4, the high-pressure gas interface 5 is exposed at the end of the air film blade 3, and the other end of the high-pressure gas pipeline 4 is connected to the inner wall of the other end of the air film blade 3;

[0042] The high-pressure gas pipeline 4 has a vent hole 6 formed on the side thereof, and the high-pressure gas pipeline 4 conducts ventilation to the interior of the air film blade 3 through the vent hole 6; the high-pressure gas pipeline 4 is also connected to an airfoil control component 7, and the airfoil control component 7 extends from one side of the interior of the air film blade 3 to the other side of the interior of the air film blade 3;

[0043] The curling deformation of the film blade 3 is adjusted by the airfoil control assembly 7 so that the film blade 3 is converted between a lift-type blade and a drag-type blade.

[0044] In this embodiment, a membrane sheet 8 is distributed on the side of the high-pressure gas pipeline 4 opposite to the air vent 6, and the high-pressure gas pipeline 4 is connected to the inner wall of the air film blade 3 through the membrane sheet 8; the air vents 6 are distributed in sequence and at equal intervals along the side of the high-pressure gas pipeline 4; the high-pressure gas interface 5 is equipped with an air pump (not shown) through a delivery pipeline, and the air pump delivers high-pressure gas to the inside of the high-pressure gas pipeline 4 through the high-pressure gas interface 5. The high-pressure gas is delivered from the air vent 6 to the inside of the air film blade 3 so that the air film blade 3 maintains a set geometric shape; the high-pressure gas forms a micro-positive pressure environment inside the air film blade 3.

[0045] Specifically, the air film blade 3 adopts an air-supported membrane structure, and the air film blade 3 is self-supported by forming a micro-positive pressure environment by introducing high-pressure air into the air film blade 3, thereby maintaining the geometric shape of the air film blade 3. A high-pressure gas pipeline 4 is installed inside the air film blade 3, and the high-pressure gas pipeline 4 is installed on the side close to the leading edge of the air film blade 3, and is connected to the air film blade 3 through a membrane 8. When the air pump generates high-pressure gas, the high-pressure gas flows into the air film blade 3 along the high-pressure gas pipeline 4, and flows out through the vents 6 evenly distributed on the surface of the high-pressure gas pipeline 4, and then diffuses to the entire air film blade 3.

[0046] The air pump can be installed below the air film blades 3 or inside the vertical axis wind turbine tower, and its installation position does not have a significant impact on the normal operation of the air film blades 3. This embodiment does not make detailed provisions for the installation position of the air pump.

[0047] In this embodiment, the distance between two adjacent vent holes 6 is 5% to 10% of the total length of the high-pressure gas pipeline 4. This ensures that the high-pressure gas is evenly diffused inside the air film blade 3, which is conducive to maintaining the geometric shape of the air film blade 3. In order to ensure that the air film blade 3 always maintains the set shape under complex air flow conditions, the high-pressure gas should form a micro-positive pressure environment inside the air film blade 3. In principle, the pressure difference between the inside and outside of the air film blade 3 is not less than 400pa.

[0048] In actual situations, the pressure of the slightly positive pressure environment formed in the air film blade 3 is adjusted according to the local wind speed. The pressure formula for adjusting the slightly positive pressure environment formed in the air film blade 3 according to the local wind speed is:

[0049] ;

[0050] ;

[0051] Where P f is wind pressure; ρ is air density; v is wind speed; P m is the pressure inside the air film blade 3; S is the safety factor; P0 is the atmospheric pressure.

[0052] See also Figure 3 and Figure 4 In this embodiment, the airfoil control assembly 7 is spaced between two adjacent vents 6; the airfoil control assembly 7 includes a support boom 9, a main boom 10, a secondary boom 11, an adjusting motor 12 and a telescopic rod 13; a docking hole is formed at one end of the support boom 9, and the support boom 9 is connected to the high-pressure gas pipeline 4 through the docking hole, and the other end of the support boom 9 is hinged to one end of the main boom 10, and the hinged portion of the support boom 9 and the main boom 10 is connected to the adjusting motor 12; the other end of the main boom 10 and the set position of the secondary boom 11 are hinged through a pin shaft; one end of the telescopic rod 13 is hinged to the back of the main boom 10, and the other end of the telescopic rod 13 is hinged to the end of the secondary boom 11.

[0053] Specifically, after the air film blade 3 is filled with high-pressure gas, the air film blade 3 can be converted between a lift-type blade and a drag-type blade by controlling the airfoil control assembly 7. Among them, the support arm 9 is fixed to the surface of the high-pressure gas pipeline 4, serving as the support structure of the entire airfoil control assembly 7. An adjusting motor 12 is installed at the connection between the support arm 9 and the main arm 10, and the angle between the support arm 9 and the main arm 10 can be changed by rotating the adjusting motor 12; the main arm 10 and the auxiliary arm 11 are connected by a hinge structure, and a telescopic rod 13 is installed on the side of the main arm 10. By driving the telescopic distance of the telescopic rod 13, the angle between the main arm 10 and the auxiliary arm 11 can be changed. By changing the above two angles, the curling degree of the airfoil control assembly 7 can be adjusted, thereby causing the air film blade 3 to curl and deform, completing the conversion of the air film blade 3 between a lift-type blade and a drag-type blade.

[0054] The formula for controlling the relative position change of the support arm 9 and the main arm 10 by adjusting the motor 12 is:

[0055] ;

[0056] ;

[0057] Wherein, ω1 is the rotation speed of the regulating motor 12; θ1 is the angle between the supporting arm 9 and the main arm 10; τ is the torque of the regulating motor 12; J is the moment of inertia of the regulating motor 12; D is the damping effect of the regulating motor 12; and K1 is the stiffness coefficient.

[0058] The relative position change formula of the main boom 10 and the auxiliary boom 11 is:

[0059] ;

[0060] ;

[0061] Wherein, θ2 is the angle between the main boom 10 and the auxiliary boom 11; L m is the length of the main boom 10; L s is the length of the auxiliary arm 11; l is the telescopic distance of the telescopic rod 13; t is the operating time.

[0062] In this embodiment, when the wind speed is lower than 5m / s, the angle θ1 between the supporting arm 9 and the main arm 10 is increased, and the angle θ2 between the main arm 10 and the auxiliary arm 11 is increased, so that the curling degree of the air film blade 3 becomes larger, and the air film blade 3 is adjusted to a resistance type blade; when the wind speed is 5-25m / s, the angle θ1 between the supporting arm 9 and the main arm 10 is reduced, and the angle θ2 between the main arm 10 and the auxiliary arm 11 is reduced, so that the curling degree of the air film blade 3 becomes smaller, and the air film blade 3 is adjusted to a lift type blade; when the wind speed is higher than 25m / s, the angle θ1 between the supporting arm 9 and the main arm 10 is increased, and the angle θ2 between the main arm 10 and the auxiliary arm 11 is increased, so that the curling degree of the air film blade 3 becomes larger, and the air film blade 3 is adjusted to a resistance type blade.

[0063] The curling deformation control formula of the air film blade 3 is:

[0064] ;

[0065] Where v is the wind speed.

[0066] Specifically, the degree of curling deformation of the air film blade 3 is determined by the local wind conditions. When the wind speed is lower than 5m / s, in order to reduce the starting wind speed of the vertical axis wind turbine and improve the wind energy capture rate, the angle between the support arm 9 and the main arm 10 is increased. θ 1 , and increase the angle between the main boom 10 and the auxiliary boom 11 θ 2. Make the curling degree of the air film blade 3 larger and adjust the air film blade 3 to a resistance type blade; when the wind speed is 5 to 25 m / s (including the end values ​​of 5 m / s and 25 m / s), in order to increase the speed of the vertical axis wind turbine and improve the power generation efficiency, reduce the angle between the support arm 9 and the main arm 10 θ 1 , and reduce the angle between the main boom 10 and the auxiliary boom 11 θ 2. Reduce the curling degree of the air film blade 3 and adjust the air film blade 3 to a lift-type blade; when the wind speed is higher than 25m / s, in order to reduce the speed of the vertical axis wind turbine and ensure the safety of the device operation, increase the angle between the support arm 9 and the main arm 10 θ 1 , and increase the angle between the main boom 10 and the auxiliary boom 11 θ 2. Make the curling degree of the air film blade 3 larger and adjust the air film blade 3 to a resistance type blade.

[0067] In a possible embodiment, the film material of the air film blade 3 is PVDF material, which takes into account the wear resistance, lightness and environmental protection of the air film blade 3. After the air film blade 3 is damaged or aged, it can be repaired or efficiently recycled and reused, solving the pollution problem of the traditional air film blade 3 being difficult to degrade and recycle.

[0068] In summary, the air film blade 3 of the present invention adopts an air-supported membrane structure, and the air film blade 3 is self-supported by forming a micro-positive pressure environment by introducing high-pressure air into the air film blade 3, and the geometric shape of the air film blade 3 is maintained. A high-pressure gas pipeline 4 is installed inside the air film blade 3, and the high-pressure gas pipeline 4 is installed on the side close to the leading edge of the air film blade 3, and is connected to the air film blade 3 through a connecting membrane sheet 8. When the air pump generates high-pressure gas, the high-pressure gas flows into the air film blade 3 along the high-pressure gas pipeline 4, and flows out through the vents 6 evenly distributed on the surface of the high-pressure gas pipeline 4, and then diffuses to the entire air film blade 3. The distance between two adjacent vents 6 is 5% to 10% of the total length of the high-pressure gas pipeline 4. To ensure that the high-pressure gas is evenly diffused inside the air film blade 3, it is beneficial to maintain the geometric shape of the air film blade 3. In order to ensure that the air film blade 3 always maintains the set shape under complex airflow conditions, the high-pressure gas should form a micro-positive pressure environment in the air film blade 3. In principle, the pressure difference between the inside and outside of the air film blade 3 is not less than 400pa. After the air film blade 3 is filled with high-pressure gas, the air film blade 3 can be converted between a lift-type blade and a drag-type blade by controlling the airfoil control assembly 7. Among them, the support arm 9 is fixed to the surface of the high-pressure gas pipeline 4, serving as the support structure of the entire airfoil control assembly 7. An adjusting motor 12 is installed at the connection between the support arm 9 and the main arm 10. The angle between the support arm 9 and the main arm 10 can be changed by rotating the adjusting motor 12; the main arm 10 and the auxiliary arm 11 are connected by a hinge structure, and a telescopic rod 13 is installed on the side of the main arm 10. By driving the telescopic distance of the telescopic rod 13, the angle between the main arm 10 and the auxiliary arm 11 can be changed. By changing the above two angles, the curling degree of the airfoil control assembly 7 can be adjusted, thereby causing the air film blade 3 to curl and deform, completing the conversion of the air film blade 3 between the lift-type blade and the drag-type blade. When the wind speed is lower than 5m / s, increase the angle between the support arm 9 and the main arm 10. θ 1 , and increase the angle between the main boom 10 and the auxiliary boom 11 θ 2. Make the curling degree of the air film blade 3 larger and adjust the air film blade 3 to a resistance type blade; when the wind speed is 5 to 25 m / s (including the end values ​​of 5 m / s and 25 m / s), reduce the angle between the support arm 9 and the main arm 10 θ 1 , and reduce the angle between the main boom 10 and the auxiliary boom 11 θ 2. Reduce the curling degree of the air film blade 3 and adjust the air film blade 3 to a lift-type blade; when the wind speed is higher than 25m / s, increase the angle between the support arm 9 and the main arm 10 θ 1 , and increase the angle between the main boom 10 and the auxiliary boom 11 θ2. Make the curling degree of the air film blade 3 larger and adjust the air film blade 3 to a resistance type blade. The wind turbine blade mechanism of the present invention is lightweight, highly flexible and environmentally friendly, and can adjust its own shape in dynamically changing complex wind conditions, thereby improving energy capture efficiency; while maintaining low weight, the type of the air film blade 3 can be flexibly adjusted to adapt to different wind speed conditions and ensure operational safety.

[0069] Although the present invention has been described in detail above by general description and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the present invention. Therefore, these modifications or improvements made without departing from the spirit of the present invention all belong to the scope of protection claimed by the present invention.

Claims

1. An inflatable deformable vertical axis wind turbine blade mechanism, comprising a main shaft (1), wherein both ends of the main shaft (1) are connected to blade arms (2), characterized in that: An air film blade (3) is connected between the blade arms (2), a high-pressure gas pipeline (4) is provided inside the air film blade (3), a high-pressure gas interface (5) is formed at one end of the high-pressure gas pipeline (4), the high-pressure gas interface (5) is exposed at the end of the air film blade (3), and the other end of the high-pressure gas pipeline (4) is connected to the inner wall of the other end of the air film blade (3); A vent hole (6) is formed on the side of the high-pressure gas pipeline (4), and the high-pressure gas pipeline (4) is connected to the interior of the air film blade (3) through the vent hole (6); the high-pressure gas pipeline (4) is also connected to an airfoil control component (7), and the airfoil control component (7) extends from one side of the interior of the air film blade (3) to the other side of the interior of the air film blade (3); The curling deformation of the film blade (3) is adjusted by the airfoil control component (7) so that the film blade (3) is converted between a lift-type blade and a drag-type blade; The airfoil control assembly (7) is spaced apart between two adjacent vent holes (6); the airfoil control assembly (7) comprises a support arm (9), a main arm (10), a secondary arm (11), an adjustment motor (12) and a telescopic rod (13); A docking hole is formed at one end of the support arm (9), and the support arm (9) is connected to the high-pressure gas pipeline (4) through the docking hole; the other end of the support arm (9) is hinged to one end of the main arm (10); and the adjustment motor (12) is connected to the hinged portion of the support arm (9) and the main arm (10); The other end of the main boom (10) and the set position of the auxiliary boom (11) are hinged via a pin; one end of the telescopic rod (13) is hinged to the back of the main boom (10), and the other end of the telescopic rod (13) is hinged to the end of the auxiliary boom (11).

2. The inflatable deformable vertical axis wind turbine blade mechanism according to claim 1, characterized in that: The vent holes (6) are distributed in sequence at equal intervals along the side of the high-pressure gas pipeline (4), and the distance between two adjacent vent holes (6) is 5% to 10% of the total length of the high-pressure gas pipeline (4).

3. The inflatable deformable vertical axis wind turbine blade mechanism according to claim 1, characterized in that: The high-pressure gas interface (5) is equipped with an air pump through a delivery pipeline. The air pump delivers high-pressure gas to the inside of the high-pressure gas pipeline (4) through the high-pressure gas interface (5). The high-pressure gas is delivered from the air vent (6) to the inside of the air film blade (3) so that the air film blade (3) maintains a set geometric shape; the high-pressure gas forms a micro-positive pressure environment inside the air film blade (3).

4. The inflatable deformable vertical axis wind turbine blade mechanism according to claim 3, characterized in that: The internal and external pressure difference of the air film blade (3) is not less than 400 Pa. The pressure of the micro-positive pressure environment formed in the air film blade (3) is adjusted according to the local wind speed. The pressure formula for adjusting the micro-positive pressure environment formed in the air film blade (3) according to the local wind speed is: Where P f is wind pressure; ρ is air density; v is wind speed; P m is the pressure inside the air film blade (3); S is the safety factor; P0 is the atmospheric pressure.

5. The inflatable deformable vertical axis wind turbine blade mechanism according to claim 1, characterized in that: A membrane sheet (8) is also distributed on one side of the high-pressure gas pipeline (4) relative to the vent hole (6), and the high-pressure gas pipeline (4) is connected to the inner wall of the air film blade (3) through the membrane sheet (8).

6. The inflatable deformable vertical axis wind turbine blade mechanism according to claim 1, characterized in that: The formula for controlling the relative position change between the support arm (9) and the main arm (10) by the regulating motor (12) is: In the formula, ω1 is the rotation speed of the regulating motor (12); θ1 is the angle between the supporting arm (9) and the main arm (10); τ is the torque of the regulating motor (12); J is the moment of inertia of the regulating motor (12); D is the damping effect of the regulating motor (12); and K1 is the stiffness coefficient.

7. The inflatable deformable vertical axis wind turbine blade mechanism according to claim 6, characterized in that: The relative position change formula of the main boom (10) and the auxiliary boom (11) is: Where θ2 is the angle between the main boom (10) and the auxiliary boom (11); L m is the length of the main boom (10); L s is the length of the auxiliary arm frame (11); l is the telescopic distance of the telescopic rod (13); and t is the operating time.

8. The inflatable deformable vertical axis wind turbine blade mechanism according to claim 7, characterized in that: When the wind speed is lower than 5 m / s, the angle θ1 between the support arm (9) and the main arm (10) is increased, and the angle θ2 between the main arm (10) and the auxiliary arm (11) is increased, so that the curling degree of the air film blade (3) becomes larger, and the air film blade (3) is adjusted to a resistance type blade; When the wind speed is 5 to 25 m / s, the angle θ1 between the support arm (9) and the main arm (10) is reduced, and the angle θ2 between the main arm (10) and the auxiliary arm (11) is reduced, so that the curling degree of the air film blade (3) becomes smaller, and the air film blade (3) is adjusted to a lift-type blade; When the wind speed is higher than 25 m / s, the angle θ1 between the support arm (9) and the main arm (10) is increased, and the angle θ2 between the main arm (10) and the auxiliary arm (11) is increased, so that the curling degree of the air film blade (3) becomes larger, and the air film blade (3) is adjusted to a resistance type blade.

9. The inflatable deformable vertical axis wind turbine blade mechanism according to claim 8, characterized in that: The curling deformation control formula of the air film blade (3) is: Where v is the wind speed.

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