CN115030863A

CN115030863A - Umbrella-shaped wind power device with variable angle and umbrella-shaped wind energy conversion system

Info

Publication number: CN115030863A
Application number: CN202210775988.3A
Authority: CN
Inventors: 张建军; 李锐
Original assignee: GUANGDONG HIGH-ALTITUDE WIND POWER TECHNOLOGY Ltd
Current assignee: GUANGDONG HIGH-ALTITUDE WIND POWER TECHNOLOGY Ltd
Priority date: 2021-07-02
Filing date: 2022-07-02
Publication date: 2022-09-09
Also published as: CN217421415U

Abstract

The invention relates to the field of high-altitude wind energy, and discloses an umbrella-shaped wind power device with a variable angle and an umbrella-shaped wind energy conversion system. The umbrella-type wind power device comprises a cable, an umbrella cover and an umbrella rope, wherein the cable is suspended in the air and forms a pitching angle with the ground, and the edge of the umbrella cover is connected to the cable through the umbrella rope. The umbrella-type wind power device also comprises an adjusting device, wherein the adjusting device is used for changing the deviation angle of the umbrella cover relative to the cable, so that the cable is subjected to the acting force deviating from the axis of the cable, and the pitching angle of the cable relative to the ground is adjusted. The scheme is used for solving the problem of pitching angle adjustment of the mooring rope, and the effect of improving the acting efficiency of the umbrella-type wind energy conversion system is achieved.

Description

Umbrella-shaped wind power device with variable angle and umbrella-shaped wind energy conversion system

Technical Field

The invention relates to the field of high-altitude wind energy, in particular to an umbrella-shaped wind power device with a variable angle and an umbrella-shaped wind energy conversion system.

Background

Wind energy is a clean renewable energy source, and the full utilization of high-altitude wind energy for human use is a hot topic of continuous attention of scientific researchers. The characteristics of high-altitude wind and high-altitude wind energy are as follows: high wind speed, high average energy density, wide geographical distribution, high stability and continuous operation all the year round. The utilization of high-altitude wind energy is to collect wind energy in high altitude, convert the wind energy into mechanical energy, and finally convert the mechanical energy into electric energy or energy in other forms.

The collection and utilization of high-altitude wind energy are new research fields in the world, and the difficulty in collection and control of the high-altitude wind energy is high, so that electric energy generated by a plurality of common high-altitude wind power systems is small and unstable. There are two main ways of generating electricity by using high altitude wind energy in the world: one is to suspend the generator in the air; the other is to arrange the generator on the ground. The generator is suspended in the high-altitude power generation system, and due to the factors that the weight and the volume of the aerial system cannot be too large and the like, the generator cannot be well controlled and generate power with large capacity when suspended in the aerial part of the high-altitude power generation system. The kite-type high-altitude wind power generation system has the advantages that the generator for high-altitude kite-type power generation is arranged on the ground, a kite of the kite-type high-altitude wind power generation system is a balance body and a working body, the balance body and the working body are mutually influenced, and a good working effect cannot be realized.

Chinese patent publication No. CN102220938B discloses an umbrella-type wind power device and a wind power system, wherein the umbrella-type wind power device includes a power rope, a power umbrella, a balance umbrella and a lift force guiding body. The working umbrella is opened under the action of wind power and pulls the working rope to rise to realize working, namely wind energy conversion. The wind energy power system comprises the umbrella-shaped wind power device, a winch and a power device. The winding engine is connected with the umbrella-shaped wind power device, and the output shaft of the winding engine is connected with the acting device and provides power for the acting device. The umbrella-shaped wind power device is easy to control, and the stability of an aerial balance system cannot be influenced by the opening and closing of the acting umbrella. The aerial part of the wind energy power system which is arranged on the umbrella-shaped wind power device has good stability and controllability, and the stability of the ground part acting machinery for transferring energy is greatly improved.

However, the umbrella-type wind power device and the wind power system have the following defects: the acting umbrella and the balance umbrella can only provide acting force along the axial direction of the acting rope, and the lift force guiding body can only provide acting force vertically upwards, so that the pitching angle of the mooring rope relative to the ground, namely the posture of the mooring rope, cannot be effectively controlled. When wind power is small, the acting rope is approximately 90 degrees and is vertical to the ground; when the wind power is larger, the posture of the mooring rope is more inclined, and the pitching angle is smaller. The pitch angle of the working rope depends on the external wind environment. On the other hand, on the premise that the installation angle between the acting umbrella and the acting rope is fixed and unchanged, when the acting rope has different pitching angles, the effective windward areas of the acting umbrella in the opening and rising processes are correspondingly different. When the effective windward area of the acting umbrella is the largest, the acting umbrella can obtain the largest acting efficiency. In order to improve the working power of the working umbrella, the pitching angle of the mooring rope needs to be controllable. Therefore, there is a need in the art for a device that can adjust the pitch angle of a cable.

Disclosure of Invention

The invention aims to overcome at least one defect of the prior art and provides an umbrella-type wind power device with a variable angle and an umbrella-type wind power conversion system, which are used for solving the problem of adjusting the pitching angle of a mooring rope and achieving the effect of improving the acting efficiency of the umbrella-type wind power conversion system.

The invention adopts the technical scheme that the umbrella-type wind power device with the variable angle comprises a cable, an umbrella cover and an umbrella rope, wherein the cable is suspended in the air and forms a pitching angle with the ground, and the edge of the umbrella cover is connected to the cable through the umbrella rope. The umbrella-type wind power device also comprises an adjusting device, wherein the adjusting device is used for changing the deviation angle of the umbrella cover relative to the cable, so that the cable is subjected to the acting force deviating from the axis of the cable, and the pitching angle of the cable relative to the ground is adjusted.

In this scheme, the contained angle that the umbrella face skew angle for the hawser is between the axis of the central axis of umbrella face and the axis of hawser. Taking the joint of the umbrella rope and the cable as an example for stress analysis, the upward pulling force applied to the joint by the cable along the axial direction of the cable is a first acting force. The upward pulling force exerted by the umbrella cord on the junction is the second force. The direction of the second acting force is the same as the direction of the acting force generated by the umbrella cover under the action of wind power. The direction of the acting force generated by the umbrella surface under the action of wind power is approximately the direction of the central axis of the umbrella surface. Because the canopy has an angle of departure from the cable, the second force has the same angle of departure from the first force. The resultant force of the first acting force and the second acting force is a third acting force. Obviously, the direction of the third acting force deviates from the direction of the first acting force, namely, the direction of the third acting force is not coincident with the axial direction of the cable. Therefore, the cable is driven by the third acting force to start deflecting, so that the pitch angle of the cable with the ground is changed. The adjusting device continuously changes the deviation angle of the umbrella surface relative to the mooring rope, further continuously changes the direction of the second acting force, when the direction of the third acting force is coincident with the axis direction of the mooring rope, the mooring rope reaches a new balance state, and the mooring rope has a new pitching angle. Therefore, the pitching angle of the cable and the ground is determined by the included angle between the third acting force and the ground, the direction of the third acting force is determined by the direction of the second acting force, and finally the direction of the second acting force is determined by the deviation angle of the umbrella cover relative to the cable. The deviation angle of the umbrella cover relative to the cable can be linearly adjusted through the adjusting device. Therefore, the scheme controllably changes the deviation angle of the umbrella cover relative to the mooring rope through the adjusting device, so that the cable deflects under the driving of the third acting force, and the problem of pitching angle adjustment of the mooring rope is solved.

Preferably, the adjustment device comprises a first driver, an adjustment cord and a first hinge; the first driver is installed at the top of the umbrella cover, one end of the adjusting rope is wound in the first driver, and the other end of the adjusting rope is fixed on the cable; or the first driver is arranged on the cable, one end of the adjusting rope is wound in the first driver, and the other end of the adjusting rope is fixed at the top of the umbrella cover; the first hinge is positioned below the umbrella cover and used for connecting the umbrella rope and the cable so that the umbrella rope and the cable can rotate mutually.

In this scheme, first driver can set up on the top of umbrella face or hawser. The first driver winds the adjusting rope. A triangle is formed among the adjusting rope, the cable, the umbrella cover and the umbrella rope. When the first driver increases the extension length of the adjusting rope, under the action of wind power and gravity, the umbrella cover rotates around the first hinge and is far away from the cable, and the deviation angle of the umbrella cover relative to the cable is increased; when the first driver retracts the extending length of the adjusting rope, the adjusting rope pulls the umbrella cover to be close to the cable, and the deviation angle of the umbrella cover relative to the cable is reduced. The maximum extension of the adjustment cord determines the maximum angle of deflection of the canopy relative to the cable. The first driver can calculate the deviation angle of the umbrella cover relative to the cable rope by recording the extension length of the adjusting rope, and then the controllable adjustment of the deviation angle of the umbrella cover by the adjusting device is realized.

Further, the first hinge includes a lock for fixing a corner between the umbrella cord and the cable. Because the adjusting rope can only provide tension after extending out of the first driver, under the condition of wind interference, the umbrella cover can repeatedly swing around the first hinge within the range of the deviation angle of the umbrella cover through the umbrella rope, and the reliable control of the adjusting device on the deviation angle of the umbrella cover is further influenced. The first hinge is internally provided with the locking device, so that the angle of the umbrella rope relative to the cable rope can be effectively fixed, and the condition that the umbrella cover swings repeatedly is avoided

Optionally, the adjusting device is a servo motor, the servo motor is installed on the cable below the umbrella cover, and an output shaft of the servo motor is fixedly connected with the umbrella rope. The servo motor is arranged at the joint point of the umbrella rope and the mooring rope. The servo motor can obtain the rotation angle between the umbrella rope and the cable rope by controlling the rotation angle of the output shaft of the servo motor, and then the deviation angle of the umbrella cover relative to the cable rope is obtained through calculation, so that the controllable adjustment of the deviation angle of the umbrella cover by the adjusting device is realized.

Optionally, the adjustment device comprises a second driver, a third driver, a second hinge and a third hinge; the second driver and the third driver are arranged on the cable below the umbrella cover; the second hinge and the third hinge are arranged at the edge of the umbrella cover; one end of part of the umbrella rope is wound in the second driver, and the other end of the part of the umbrella rope is connected with the umbrella cover through a second hinge; one end of part of the umbrella rope is wound in the third driver, and the other end of the part of the umbrella rope is connected with the umbrella cover through a third hinge.

In this scheme, the umbrella rope divide into two sets ofly, and the umbrella face and the hawser of one side are connected through second driver and a plurality of second hinged joint to first group, and the umbrella face and the hawser of opposite side are connected through third driver and a plurality of third hinged joint to second group. The second driver winds the first group of umbrella ropes, and the third driver winds the second group of umbrella ropes. The cable passes through the center of the umbrella cover. When the lengths of the first group of umbrella ropes and the second group of umbrella ropes are the same, the central axis of the umbrella cover coincides with the axis of the mooring rope, and the deviation angle of the umbrella cover relative to the mooring rope is zero. When the first group of umbrella ropes is longer than the second group of umbrella ropes, the included angle between the central axis of the umbrella cover and the axis of the mooring rope is a positive included angle, the deviation angle of the umbrella cover is a positive deviation angle, the posture of the mooring rope is more inclined, and the pitching angle of the mooring rope is reduced; when the first group of parachute lines is shorter than the second group of parachute lines, the included angle between the central axis of the umbrella cover and the axis of the mooring rope is a negative included angle, the deviation angle of the umbrella cover is a negative deviation angle, the mooring rope posture is more vertical, and the pitching angle of the mooring rope is increased. The difference in length between the first and second sets of cords determines the maximum angle of deflection of the canopy relative to the cable. The second driver and the third driver can calculate the deviation angle of the umbrella cover relative to the cable rope by recording the extension lengths of the first group of umbrella ropes and the second group of umbrella ropes respectively, and then the controllable adjustment of the deviation angle of the umbrella cover by the adjusting device is realized.

Optionally, the umbrella further comprises a solar film, the solar film covers the upper surface of the umbrella cover, and the solar film is used for collecting solar power to generate power and supplying power to the adjusting device.

Optionally, the umbrella further comprises a wind power generation device, the wind power generation device is embedded in the umbrella cover and used for collecting wind power to generate power and supplying power to the adjusting device.

The scheme also provides an umbrella-type wind energy conversion system which comprises a lift force guiding body, a working umbrella ladder and a working device, wherein the lift force guiding body is used for fixedly connecting the tail end of the top of the mooring rope; the acting umbrella ladder is used for being connected to a mooring rope, collecting high-altitude wind energy and converting the high-altitude wind energy into mechanical energy; the acting device is used for being installed on the ground and collecting mechanical energy transmitted by the cable. The system adopts the umbrella-shaped wind power device with the variable angle.

The umbrella-type wind energy conversion system adopts the umbrella-type wind power device with a variable angle as the balance umbrella, so that the pitching angle of the mooring rope relative to the ground is controllable and adjustable, and then the acting umbrella ladder on the mooring rope can always obtain the maximum effective windward area, and the effect of improving the acting efficiency of the umbrella-type wind energy conversion system is achieved. Specifically, the vertical upward pulling force exerted by the lift guiding body on the cable and the second force exerted by the umbrella cover on the cable jointly determine the pitch angle of the cable. When the deviation angle of the umbrella surface relative to the cable is zero, the posture of the cable is gradually vertical, and the pitching angle of the cable is gradually restored to 90 degrees; when the umbrella surface has a positive deviation angle relative to the cable, the cable posture is gradually inclined, and the cable has a fixed pitching angle after being balanced; when the positive deflection angle of the canopy relative to the cable increases, the cable attitude will be more inclined and the pitch angle of the cable will decrease. The system calculates the optimal pitching angle of the mooring rope by acquiring the wind direction around the acting umbrella ladder and adjusts the optimal pitching angle through the adjusting device, so that the effective windward area of the acting umbrella ladder is maximized, and the acting efficiency of the acting umbrella ladder is improved.

Furthermore, the acting umbrella ladder comprises at least one of a first acting umbrella, a second acting umbrella and a third acting umbrella; the first acting umbrella changes the windward area through opening and closing of the umbrella surface; the second acting umbrella changes the windward area by adjusting the size of the opening of the umbrella surface; the third acting umbrella changes the windward area by adjusting the angle of the umbrella surface.

In the scheme, the umbrella-shaped wind power device with the variable angle can be further transformed into a third power umbrella. The air posture of the power umbrella can be understood as the inclined condition of the umbrella surface in the air. The umbrella surface of the third acting umbrella can be connected with the cable in a swinging mode, the air posture of the umbrella surface is changed through the driving of the adjusting device, the effective windward area of the third acting umbrella is changed, the defect that a single acting umbrella only has a single windward area is overcome, and the flexibility of adjusting the total windward area of the acting umbrella ladder is improved. The windward area has a continuously adjustable interval, so that the system output is more stable; on the other hand, the third power umbrella does not need to be opened and closed, the limit of the umbrella-shaped wind power device on the size of the umbrella cover opening and closing device is eliminated, the diameter can be set to be larger, the upper limit of the windward area of the single power umbrella is improved, and therefore the wind energy conversion efficiency is improved. One working way of the third working umbrella is as follows: the third acting umbrella increases the effective windward area through the adjusting device, and pulls the mooring rope to finish the upward acting; after the third working umbrella ascends to the working upper limit position, the effective windward area of the third working umbrella is reduced through the adjusting device, and downward recovery is completed under the pulling of the self gravity and the cable.

Further, the acting device comprises a winch device and a generator, and the winch device is used for winding the bottom tail end of the cable; the cable pulls the winch device to rotate, and then the generator is driven to generate electricity.

Compared with the prior art, the invention has the beneficial effects that:

the umbrella-type wind power device of the scheme controllably changes the deviation angle of the umbrella cover relative to the mooring rope through the adjusting device, so that the cable deflects under the driving of third acting force, and the problem of pitching angle adjustment of the mooring rope is solved. The umbrella-type wind energy conversion system adopts the umbrella-type wind power device with a variable angle as the balance umbrella, so that the pitching angle of the mooring rope relative to the ground is controllable and adjustable, and then the acting umbrella ladder on the mooring rope can always obtain the maximum effective windward area, and the effect of improving the acting efficiency of the umbrella-type wind energy conversion system is achieved.

Drawings

Fig. 1 is a schematic structural view of an umbrella cover and a cable with a small deviation angle according to embodiment 1 of the present invention.

Fig. 2 is a schematic structural view of the umbrella cover and the cable of embodiment 1 of the present invention at a large deviation angle.

FIG. 3 is a force analysis diagram of the junction of the umbrella rope and the cable of the present invention.

Fig. 4 is a structural diagram of the umbrella cover and the cable in embodiment 2 of the present invention at a zero deviation angle.

Fig. 5 is a structural view of the umbrella cover and the cable of embodiment 2 of the present invention when they are positively deviated from an angle.

Fig. 6 is a schematic structural diagram of embodiment 3 of the present invention.

Fig. 7 is a schematic diagram of a third umbrella for doing work according to embodiment 3 of the present invention.

Description of reference numerals: umbrella-type wind power device 100, cable 10, umbrella cover 20, umbrella rope 30, adjusting device 40, first driver 41, second driver 42, third driver 43, first hinge 44, second hinge 45, third hinge 46, adjusting rope 47;

the lifting force guide body 200, the acting umbrella ladder 300, the first acting umbrella 310, the second acting umbrella 320, the third acting umbrella 330 and the acting device 400.

Detailed Description

The drawings are only for purposes of illustration and are not to be construed as limiting the invention. For a better understanding of the following embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

Example 1

As shown in fig. 1, 2 and 3, the present embodiment is an umbrella-type wind power device with a variable angle, comprising a cable 10, an umbrella cover 20 and an umbrella rope 30, wherein the cable 10 is suspended in the air and forms a pitch angle with the ground, and the edge of the umbrella cover 20 is connected to the cable 10 through the umbrella rope 30. The umbrella-type wind power device further comprises an adjusting device 40, wherein the adjusting device 40 is used for changing the deviation angle of the umbrella cover 20 relative to the cable 10, enabling the cable 10 to be subjected to a force deviating from the axis of the cable, and adjusting the pitch angle of the cable 10 relative to the ground.

In this embodiment, the deviation angle of canopy 20 relative to cable 10 is the included angle between the central axis of canopy 20 and the axis of cable 10. Taking the joint of the umbrella rope 30 and the cable 10 as an example, the force analysis is performed, and the upward pulling force applied to the joint along the axial direction of the cable 10 is the first acting force. The upward pulling force exerted by the umbrella cord 30 against the attachment point is the second force. The direction of the second force is the same as the direction of the force generated by canopy 20 under the action of wind. The direction of the force generated by the umbrella cover 20 under the action of wind is approximately the central axis direction of the umbrella cover 20. Since canopy 20 has an angle of departure from cable 10, the second force has the same angle of departure from the first force. The resultant force of the first acting force and the second acting force is a third acting force. Obviously, the direction of the third force deviates from the direction of the first force, i.e. the third force direction does not coincide with the axial direction of the cable 10. Thus, the cable 10 starts to deflect driven by the third force, so as to change its pitch angle with the ground. Adjusting device 40 continuously changes the angle of deviation of canopy 20 with respect to cable 10, and further continuously changes the direction of the second force, and when the direction of the third force coincides with the axial direction of cable 10, cable 10 reaches a new equilibrium state, and cable 10 has a new pitch angle. It can be seen that the pitch angle of cable 10 to the ground is determined by the angle of the third force to the ground, the direction of the third force is determined by the direction of the second force, and finally the direction of the second force is determined by the angle of deviation of canopy 20 relative to cable 10. The angle of deflection of canopy 20 relative to the cable can be linearly adjusted by adjustment means 40. Therefore, in the present solution, the adjusting device 40 controllably changes the deviation angle of the umbrella cover 20 relative to the cable 10, so that the cable is driven by the third acting force to deflect, thereby solving the problem of adjusting the pitch angle of the cable 10.

Preferably, the adjustment device 40 comprises a first driver 41, an adjustment cord 47 and a first hinge 44; the first driver 41 is installed on the top of the umbrella cover 20, one end of the adjusting rope 47 is wound on the first driver 41, and the other end of the adjusting rope 47 is fixed on the cable 10; or the first driver 41 is installed on the cable 10, one end of the adjusting rope 47 is wound on the first driver 41, and the other end of the adjusting rope 47 is fixed on the top of the umbrella cover 20; first hinge 44 is located below canopy 20, and first hinge 44 is used to connect umbrella cord 30 and cable 10 for rotation.

In this embodiment, first actuator 41 may be disposed on the top of canopy 20 or on cable 10. The first driver 41 winds the adjusting rope 47. The adjusting rope 47, the cable 10, the umbrella cover 20 and the umbrella rope 30 form a triangle. When first actuator 41 increases the extension of adjustment cord 47, canopy 20 rotates about first hinge 44 away from cable 10 under the influence of wind and gravity, and the angle of deflection of canopy 20 relative to cable 10 increases; when first actuator 41 retracts the extended length of adjustment cord 47, adjustment cord 47 pulls canopy 20 closer to cable 10 and the angle of deflection of canopy 20 relative to cable 10 decreases. The maximum extension of adjustment cord 47 determines the maximum angle of deflection of canopy 20 relative to cable 10. The first driver 41 can calculate the deviation angle of canopy 20 relative to cable 10 by recording the extension length of adjusting rope 47, thereby realizing controllable adjustment of the deviation angle of canopy 20 by adjusting device 40.

Further, the first hinge 44 includes a locker for fixing a corner between the umbrella string 30 and the cable 10. Since the adjusting cord 47 only provides tension after extending from the first actuator 41, the canopy 20 may swing repeatedly around the first hinge 44 within the range of the deviation angle thereof by the umbrella cord 30 in the presence of wind interference, thereby affecting the reliable control of the deviation angle of the canopy 20 by the adjusting device 40. The first hinge 44 is provided with a locking device to effectively fix the angle of the umbrella rope 30 relative to the cable 10, thereby preventing the umbrella cover 20 from swinging repeatedly

In this embodiment, umbrella surface 20 is a spherical surface. One end of the umbrella cord 30 is evenly distributed on the circular edge of the umbrella cover 20, and the other end of the umbrella cord 30 converges at the junction of the umbrella cord 30 and the cable 10, i.e. the first hinge 44. The first driver 41 is a small winch and is installed at the top of the canopy 20 near the center thereof. When adjusting cord 47 is completely wound around first actuator 41, cable 10 is embedded in canopy 20, and the angle of deflection of canopy 20 relative to cable 10 is not zero.

Optionally, the umbrella further comprises a solar film, the solar film covers the upper surface of the umbrella cover 20, and the solar film is used for collecting solar energy to generate electricity and supplying power to the adjusting device 40.

Optionally, the umbrella further comprises a wind power generation device, the wind power generation device is embedded in the umbrella cover 20, and the wind power generation device is used for collecting wind power to generate power and supplying power to the adjusting device 40.

Example 2

As shown in fig. 4 and 5, the present embodiment is an umbrella-type wind power device with a variable angle, and the similar structure to that of embodiment 1 will not be described again.

Optionally, the adjusting device 40 comprises a second driver 42, a third driver 43, a second hinge 45 and a third hinge 46; second and

third actuators

42 and 43 are mounted on cable 10 below canopy 20; second hinge 45 and third hinge 46 are mounted at the edges of canopy 20; one end of part of the umbrella rope 30 is wound in the second driver 42, and the other end is connected with the umbrella cover 20 through the second hinge 45; one end of part of the umbrella rope 30 is wound on the third driver 43, and the other end is connected with the umbrella cover 20 through the third hinge 46.

In the present embodiment, the umbrella ropes 30 are divided into two groups, the first group connects the umbrella cover 20 and the cable 10 on one side through the second driver 42 and the plurality of second hinges 45, and the second group connects the umbrella cover 20 and the cable 10 on the other side through the third driver 43 and the plurality of third hinges 46. The second driver 42 winds the first set of umbrella cords and the third driver 43 winds the second set of umbrella cords. Cable 10 passes through the center of canopy 20. When the lengths of the first group of umbrella ropes are the same as those of the second group of umbrella ropes, the central axis of umbrella cover 20 coincides with the axis of cable 10, and the deviation angle of umbrella cover 20 relative to cable 10 is zero. When the first group of umbrella ropes is longer than the second group of umbrella ropes, the included angle between the central axis of the umbrella cover 20 and the axis of the cable 10 is a positive included angle, the deviation angle of the umbrella cover 20 is a positive deviation angle, the posture of the cable 10 is more inclined, and the pitching angle of the cable 10 is reduced; when the first group of ropes is shorter than the second group of ropes, the included angle between the central axis of umbrella cover 20 and the axis of mooring rope 10 is a negative included angle, the deviation angle of umbrella cover 20 is a negative deviation angle, the posture of mooring rope 10 is more vertical, and the pitching angle of mooring rope 10 is increased. The difference in the lengths of the first and second sets of cords determines the maximum angle of deflection of canopy 20 relative to cable 10. Second driver 42 and third driver 43 can calculate the deviation angle of canopy 20 relative to cable 10 by recording the extension lengths of the first group of umbrella cords and the second group of umbrella cords, respectively, thereby realizing the controllable adjustment of the deviation angle of canopy 20 by adjusting device 40.

In this embodiment, umbrella surface 20 is a spherical surface. One end of the umbrella cord 30 is uniformly distributed on the circular edge of the umbrella cover 20 through a second hinge 45 and a third hinge 46, respectively, and the other end of the umbrella cord 30 is wound on a second driver 42 and a third driver 43, respectively. The second and

third drivers

42, 43 are each small winches.

Example 3

As shown in fig. 6, the present embodiment is an umbrella-type wind energy conversion system, which includes a lift guiding body 200, a work doing umbrella ladder 300 and a work doing device 400, wherein the lift guiding body 200 is used for fixedly connecting the top end of the cable 10; the power-applying umbrella ladder 300 is used for being connected to the mooring rope 10, collecting high-altitude wind energy and converting the high-altitude wind energy into mechanical energy; work implement 400 is intended to be installed at the surface to collect mechanical energy transmitted by cable 10. The system adopts the umbrella-shaped wind power device with the variable angle.

The umbrella-type wind energy conversion system of the scheme adopts the umbrella-type wind power device with a variable angle as the balance umbrella, so that the pitching angle of the mooring rope 10 relative to the ground is controllable and adjustable, and further the acting umbrella ladder 300 on the mooring rope 10 can always obtain the maximum effective windward area, and the effect of improving the acting efficiency of the umbrella-type wind energy conversion system is achieved. Specifically, the vertical upward pulling force exerted by lift guiding body 200 on cable 10 and the second force exerted by canopy 20 on cable 10, together determine the pitch angle of cable 10. When the deviation angle of canopy 20 relative to cable 10 is zero, cable 10 will be gradually vertical in attitude and the pitch angle of cable 10 will gradually return to 90 °; when canopy 20 has a positive angle of departure with respect to cable 10, cable 10 will be gradually tilted in attitude and cable 10 will have a fixed pitch angle after equilibrium; as the positive angle of deflection of canopy 20 relative to cable 10 increases, cable 10 will be more inclined in attitude and the pitch angle of cable 10 will decrease. The system calculates the optimal pitching angle of the cable 10 by acquiring the wind direction around the acting umbrella ladder 300 and adjusts the pitching angle through the adjusting device 40, so that the effective windward area of the acting umbrella ladder 300 is the largest, and the acting efficiency of the acting umbrella ladder 300 is improved.

Further, the work umbrella ladder 300 includes at least one of a first work umbrella 310, a second work umbrella 320, and a third work umbrella 330; the first working umbrella 310 changes the frontal area by opening and closing its own umbrella cover; the second acting umbrella 320 changes the windward area by adjusting the opening size of the umbrella surface; the third acting umbrella 330 changes its windward area by adjusting its own angle of umbrella cover.

As shown in fig. 7, in the present embodiment, the umbrella-type wind power installation 100 with variable angle can be further modified to be a third umbrella 330. The air attitude of the power umbrella can be understood as the inclination of the umbrella surface 20 in the air. The umbrella cover 20 of the third acting umbrella 330 can be connected with the cable 10 in a swinging way, and the air posture of the umbrella cover 20 is changed through the driving of the adjusting device 40, so that the effective windward area of the third acting umbrella is changed, the defect that a single acting umbrella only has a single windward area is overcome, and the flexibility of adjusting the total windward area of the acting umbrella ladder 300 is improved. The windward area has a continuously adjustable interval, so that the system output is more stable; on the other hand, the third power umbrella 330 does not need to be opened and closed, the limitation of the umbrella-shaped wind power device on the size of the umbrella cover opening and closing device is eliminated, the diameter can be set to be larger, the upper limit of the windward area of the single power umbrella is improved, and therefore the wind energy conversion efficiency is improved. One way of doing work of the third umbrella 330 is as follows: the third acting umbrella 330 increases the effective windward area thereof through the adjusting device 40, and pulls the cable 10 to complete the upward acting; after the third working umbrella 330 ascends to the working upper limit position, the effective windward area of the third working umbrella is reduced through the adjusting device 40, and the third working umbrella finishes descending and recycling under the self gravity and the pulling of the cable 10.

Further, the work applying device 400 includes a winch device and a generator, wherein the winch device is used for winding the bottom end of the cable 10; the cable 10 pulls the winch device to rotate, and then drives the generator to generate power.

In this embodiment, the hoisting machine device and the generator are fixed on the ground. One end of the cable 10 is wound around the winch device and the other end of the cable 10 is tied to the lift guide body 200. The first working umbrella 310, the second working umbrella 320, and the third working umbrella 330, and the variable-angle umbrella-type wind power device 100 are connected to the cable 10 in this order from the ground to the air. The concrete structure of the windlass device and the generator can refer to the umbrella-type wind power device and the wind power system which are Chinese patent with the publication number of CN 102220938B. The lift guiding body 200 may be a helium balloon, a kite, etc. and functions to lift the rope 10 at the initial stage of the ascent, guide the unfolding of the working parachute ladder 300 and the parachute-type wind power device 100. The specific structure and working principle of the first work umbrella 310 and the second work umbrella 320 can refer to the chinese patent with publication number CN106762399A, an umbrella-type wind energy conversion system, and a control system and a control method thereof.

The working process of the embodiment is roughly as follows: the lift force guiding body 200 and the umbrella type wind power device 100 are raised by the wind force, and in the working state after and during the raising, the lift force guiding body 200 and the umbrella type wind power device 100 are always kept open, thereby keeping the balance and stability of the aerial part and the pitching angle of the cable 10 relative to the ground. The lift force guiding body 200 and the umbrella-type wind power device 100 rise to drive the acting umbrella ladder 300 to start rising. The power umbrella ladder 300 converts wind energy into pulling of the cable 10 in high altitude in various ways. The pulling of the cable 10 is further converted into rotary power by the winch device, and finally drives the generator to generate electricity.

It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the technical solutions of the present invention, and are not intended to limit the specific embodiments of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention claims should be included in the protection scope of the present invention claims.

Claims

1. An umbrella-type wind power device with a variable angle comprises a cable, an umbrella cover and an umbrella rope, wherein the cable is suspended in the air and forms a pitching angle with the ground, and the edge of the umbrella cover is connected to the cable through the umbrella rope; the umbrella is characterized by further comprising an adjusting device, wherein the adjusting device is used for changing the deviation angle of the umbrella cover relative to the cable, so that the cable is subjected to a force deviating from the axis of the cable, and the pitching angle of the cable relative to the ground is adjusted.

2. A variable angle umbrella wind-power unit as claimed in claim 1, wherein said adjustment means comprises a first actuator, an adjustment cord and a first hinge; the first driver is installed at the top of the umbrella cover, one end of the adjusting rope is wound in the first driver, and the other end of the adjusting rope is fixed on the cable; or the first driver is arranged on the cable, one end of the adjusting rope is wound in the first driver, and the other end of the adjusting rope is fixed at the top of the umbrella cover; the first hinge is positioned below the umbrella cover and used for connecting the umbrella rope and the cable so that the umbrella rope and the cable can rotate mutually.

3. The wind apparatus of claim 2, wherein the first hinge comprises a lock for fixing a corner between the umbrella rope and the cable.

4. A variable angle umbrella wind-power unit as claimed in claim 1, wherein said adjustment means comprises a second actuator, a third actuator, a second hinge and a third hinge; the second driver and the third driver are arranged on the cable below the umbrella cover; the second hinge and the third hinge are arranged at the edge of the umbrella cover; one end of part of the umbrella rope is wound in the second driver, and the other end of the part of the umbrella rope is connected with the umbrella cover through a second hinge; one end of part of the umbrella rope is wound in the third driver, and the other end of the part of the umbrella rope is connected with the umbrella cover through a third hinge.

5. The wind power installation of claim 1, wherein the adjustment device is a servo motor, the servo motor is mounted on the cable under the canopy, and an output shaft of the servo motor is fixedly connected to the umbrella rope.

6. The umbrella-type wind power device with the variable angle according to claim 1, further comprising a solar film, wherein the solar film covers the upper surface of the umbrella cover, and the solar film is used for collecting solar energy to generate power and supplying power to the adjusting device.

7. The umbrella-type wind power device with the variable angle according to claim 1, further comprising a wind power generation device, wherein the wind power generation device is embedded in the umbrella cover and used for collecting wind power to generate power and supplying power to the adjusting device.

8. An umbrella-type wind energy conversion system comprises a lift force guiding body, a working umbrella ladder and a working device, wherein the lift force guiding body is used for fixedly connecting the tail end of the top of a mooring rope; the acting umbrella ladder is used for being connected to a mooring rope, collecting high-altitude wind energy and converting the high-altitude wind energy into mechanical energy; the acting device is used for being installed on the ground and collecting mechanical energy transmitted by the cable; an umbrella wind power installation of variable angle according to any one of claims 1 to 7.

9. The umbrella-type wind energy conversion system of claim 8, wherein the power umbrella ladder comprises at least one of a first power umbrella, a second power umbrella, and a third power umbrella; the first acting umbrella changes the windward area through opening and closing of the umbrella surface; the second acting umbrella changes the windward area by adjusting the size of the opening of the umbrella surface; the third acting umbrella changes the windward area by adjusting the angle of the umbrella surface.

10. The umbrella-type wind energy conversion system of claim 8, wherein the work device comprises a winch device and a generator, the winch device being configured to wind the bottom end of the cable; the cable pulls the winch device to rotate, and then the generator is driven to generate electricity.