An altitude work system with controllable attitude and its work method

Abstract

The present invention discloses an attitude-controllable high-altitude work system and its work method. The system includes a work module, and the work module is respectively connected to a ground module and a balance module through work ropes. The work module has a windward surface that can be deployed for work, and a first driving member is provided on the windward surface. The first driving member drives the windward surface to move up and down on the work rope. The system further includes at least two auxiliary ropes passing through the windward surface. The two ends of the auxiliary ropes are respectively connected to the work ropes above and below the windward surface, and second driving members capable of moving up and down are respectively provided thereon. The second driving members are connected to the windward surface through connectors that can be tensioned or relaxed. By adjusting the relative positions of the first driving member and the second driving member, the size and shape attitude of the windward surface of the work module can be adjusted according to the wind conditions, so that the system has the best output power.

Description

Technical Field

[0001] The present invention relates to a power generation system using high-altitude wind energy, and particularly to an attitude-controllable high-altitude work system and a work method thereof. Background Art

[0002] The wind energy stored in the high altitude has the characteristics of high wind speed, wide distribution and high stability, which is more than 100 times the total energy required by human society. Connecting a work sail to a ground system through a work rope and using the upward movement of the work sail in the air to drive the ground system to generate electricity is one of the existing ways to utilize high-altitude wind energy.

[0003] Chinese Patent Application No. CN200910190150.2 discloses a high-power umbrella-type wind power generation system. The work umbrella in it has two wear-resistant sliders, enabling the work umbrella to move up and down along the track rope. The upper slider is at the center of the umbrella surface, and the lower slider winds all the thin ropes of the umbrella together. Each of the upper and lower sliders is also attached with a magnet. The movement area of the work umbrella is between the upper stop block and the lower stop block. Under a certain wind speed, the work umbrella will be in an open state and drive the work rope to move upward together. When the upper slider reaches the upper stop block, it will be blocked and stop moving, while the other parts of the umbrella, the lower slider and the work rope will continue to move upward under the action of wind pressure and inertia. At the same time, the effective windward area of the work umbrella continuously decreases until the lower slider touches the upper slider. When the umbrella is in a closed state, the windward area of the umbrella is relatively small, and it is easy to pull the work umbrella down by pulling back the work rope. When it is pulled to the position of the lower stop block to block the upper slider, if the work rope is pulled down continuously, the two sliders are forced to separate, and the work umbrella will automatically open again, thus starting a new up-and-down movement cycle.

[0004] In the above technical solution, the periodic opening and closing of the work umbrella is controlled by pulling the upper slider and the lower slider to slide on the track rope through the work rope, thereby driving the work rope to pull the ground system to do work. However, the windward surface of the work umbrella is only determined by the original shape of the umbrella and cannot adjust the shape and windward attitude of the umbrella according to the actual wind conditions and altitude during the work process, so the best work efficiency cannot be obtained. Summary of the Invention

[0005] The technical problem to be solved by the present invention is that the existing high-altitude work system cannot adjust the shape and windward attitude of the windward surface of the work umbrella.

[0006] To solve the above technical problem, the present invention adopts the following technical solutions:

[0007] Provided is an altitude work system with controllable attitude, including a work module. The work module is respectively connected to a ground module and a balance module through work ropes. The work module has a windward surface that can be deployed for work, and a first driving member is provided on the windward surface. The first driving member drives the windward surface to move up and down on the work rope.

[0008] The system further includes at least two auxiliary ropes passing through the windward surface. Both ends of the auxiliary ropes are respectively connected to the work ropes above and below the windward surface, and second driving members capable of moving up and down are respectively provided thereon. The second driving members are connected to the windward surface through connective members that can be tensioned or relaxed.

[0009] Furthermore, the first driving member is arranged at the center of the windward surface. The auxiliary ropes are evenly arranged around the periphery of the center, and the distance from the auxiliary ropes to the center is less than the distance from the outer edge of the windward surface to the center.

[0010] Even further, the connective member includes ropes. At least three ropes are respectively connected to each second driving member, and the other ends of the ropes are connected to the outer edge of the windward surface.

[0011] Even further, the second driving member is also provided with a hoisting mechanism, and the hoisting mechanism tightens or relaxes the ropes.

[0012] Furthermore, a wing surface for connecting the ropes is provided on the side of the ropes close to the windward surface.

[0013] Even further, the work module includes a sensor module for recording altitude and wind conditions, and a control module for controlling the first driving member and the second driving member. The control module is connected to the first driving member and the second driving member through a wireless transmission module; the system further includes a power supply module for supplying power to the sensor module, the first driving member and the second driving member.

[0014] To solve the above technical problems, the present invention also provides a working method for an altitude work system with controllable attitude, including the following steps:

[0015] 1) When the windward surface of the work module ascends to the upper limit height of work, the second driving member moves upward along the auxiliary rope, and the connective member connecting the second driving member and the windward surface is relaxed, and the windward surface is folded upward.

[0016] 2) The ground module retracts the work rope, the work module continues to descend, and the second driving member and the first driving member connected to the windward surface respectively move downward along the auxiliary rope and the work rope to the initial set position synchronously.

[0017] 3) When the work module descends to the lower limit height of work, the first driving member ascends along the work rope, the connecting member is tensioned, and the windward surface is unfolded again under the blowing of the wind;

[0018] 4) The work module ascends under the action of the wind and drives the ground module to do work through the work rope;

[0019] 5) Repeat the above steps 1) to 4);

[0020] Among them, at least two of the auxiliary ropes pass through the windward surface and are respectively connected to the work ropes located on the upper side and the lower side of the windward surface.

[0021] Furthermore, the first driving member is arranged at the center of the windward surface, the auxiliary ropes are uniformly arranged around the periphery of the center, and the distance from the auxiliary ropes to the center is less than the distance from the outer edge of the windward surface to the center; each of the second driving members is provided with at least 3 connecting members connected to the outer edge of the windward surface.

[0022] Furthermore, the method further includes the step of adjusting the length of the connecting member.

[0023] Furthermore, the work method further includes the step of adjusting the relative positions between the first driving member and the second driving member.

[0024] The technical solution claimed by the present invention has achieved the following technical effects:

[0025] 1) By adjusting the relative positions of the first driving member and the second driving member, it is possible to adjust the size and shape attitude of the windward surface of the work module according to the high-altitude wind conditions, so as to achieve a stable output of the work power and enable the system to have the best output power.

[0026] 2) By adjusting the relative positions of the first driving member and the second driving member, it is also possible to quickly retract the windward surface of the work module.

[0027] 3) The work module converts wind energy into mechanical energy and converges it on the same work rope, so that the structure of the ground module (such as the generator system) can be effectively simplified.

[0028] 4) Through the winch on the second driving member on the auxiliary rope, it is possible to adjust the length of the connecting member connected to the outer edge of the windward surface, and further flexibly adjust the angle of attack α of the windward surface according to the wind conditions, so that the entire system has the best output power. Brief Description of the Drawings

[0029] Figure 1 It is a schematic structural diagram of a high-altitude work system;

[0030] Figure 2Schematic diagram of the high-altitude work system in the initial or downward position;

[0031] Figure 3 Schematic diagram of the deployed state of the windward surface of the high-altitude work system;

[0032] Figure 4 Schematic diagram of adjusting the size of the windward surface of the high-altitude work system;

[0033] Figure 5 Schematic diagram of the partial structure of the second driving member;

[0034] Figure 6 Schematic diagram of the second driving member adjusting the angle of attack α of the windward surface by adjusting the auxiliary rope.

[0035] Reference numerals: 101 - balance module; 201 - auxiliary rope; 301 - work module; 302 - wing surface; 401 - rope; 501 - first driving member; 502 - second driving member; 601 - work rope. Detailed implementation manners

[0036] The following further clearly describes the technical solution claimed in the present invention in conjunction with the accompanying drawings and specific embodiments.

[0037] Embodiment 1

[0038] As Figure 1-4 shown, the attitude - controllable high - altitude work system provided in this embodiment includes a work module 301. The work module 301 is respectively connected to a ground module and a balance module 101 through a work rope 601. The balance module 101 is a helium balloon connected to the end of the work rope 601. The balance module is mainly used to balance the weight of the entire system, and at the same time control the running orientation and initial angle of attack of the system, etc. The work module 301 has a deployable windward surface for doing work. Specifically, a first driving member 501 is provided on the windward surface, and the first driving member 501 drives the windward surface to move up and down on the work rope 601.

[0039] The system further includes at least two auxiliary ropes 201 passing through the windward surface. Both ends of the auxiliary rope 201 are respectively connected to the work ropes 601 on the upper and lower sides of the windward surface, and second driving members 502 capable of moving up and down are respectively provided on them. The second driving members 502 are connected to the windward surface through connective members that can be tensioned or relaxed. Among them, the work module may have a sail - like configuration, and the sail surface of this sail - like configuration forms the windward surface.

[0040] Specifically, the first driving member 501 is arranged at the center of the windward surface, the auxiliary ropes 201 are uniformly arranged around the periphery of the center, and the distance from the auxiliary ropes 201 to the center is less than the distance from the outer edge of the windward surface to the center.

[0041] Specifically, the connecting member can be selected as a rope 401. At least three ropes 401 are respectively connected to each of the second driving members 502, and the other ends of the ropes 401 are connected to the outer edge of the windward surface. A wing surface 302 for connecting the ropes is provided on one side of the ropes 401 close to the windward surface. The setting of the wing surface can effectively prevent the windward surface from rotating and other conditions when the windward surface unfolds.

[0042] Specifically, the work - doing module includes a sensor module for recording altitude and wind conditions, and a control module for controlling the first driving member 501 and the second driving member 502. The control module is connected to the first driving member 501 and the second driving member 502 through a wireless transmission module; the system also includes a power supply module for supplying power to the sensor module, the first driving member 501 and the second driving member 502.

[0043] Among them, the sensor module transmits information such as the altitude and wind conditions of the location where the work - doing module is located to the control module (which can be set on the ground module) through the wireless module, and then the control module controls the operation of the first driving member 501 and the second driving member 502. The power supply module is a wind power generation device arranged near the work - doing module, and the system power can be transmitted through a power supply line wrapped in the core of the work - doing rope 601 or placed outside the work - doing rope.

[0044] In this embodiment, the unfolded state of the windward surface is mainly adjusted by the relative positions of the first driving member 501 and the second driving member 502. When the three move to appropriate relative positions, the high - altitude wind energy completely blows open the windward surface, converts the wind energy into tension, and finally converges on the work - doing rope 601 through the ropes 401, the first driving member 501, and the second driving member 502. Then the huge tension acting on the work - doing rope 601 can drive the ground module (such as a generator) to do work. The specific work - doing process is as follows:

[0045] 1) As Figure 2 shown, when the work - doing module 301 runs to the preset upper limit height of work (altitude), the second driving member 502 unlocks the lock clamped on the auxiliary rope 201, and is driven by the high - altitude wind and combined with automatic upward walking. The rope 401 is in a slack state. At this time, the windward surface will quickly fold and flip, the windward surface rapidly decreases, and the work - doing module 301 loses the upward power. At this time, the ground module can easily and quickly pull the work - doing rope 601 to make the whole work - doing module descend;

[0046] 2) During the process of the work - doing module 301 descending to the lower limit height of work, the first driving member 501 and the second driving member 502 synchronously and quickly descend to the predetermined positions and respectively clamp on the initial set positions of the auxiliary rope 201 and the work - doing rope 601;

[0047] 3) AsFigure 3 As shown, when the work module 301 descends to the preset lower limit height of the system work, the first driving member 501 actively ascends. At this time, the rope 401 is in a tensioned state, and the windward surface of the work module 301 will be unfolded again under the blowing of the high-altitude wind and restored to Figure 1 the work state shown, pulling the work rope 601 to drive the ground module to do work;

[0048] 3.1) During the work process, at the same wind speed, the system output power is proportional to the windward area of the work module. If the high-altitude wind speed exceeds the rated wind speed, the system can reduce the work altitude range to a suitable wind speed range. However, in step 3), the relative positions of the second driving member 502 and the first driving member 501 can also be adjusted to adjust the attitude of the windward surface and moderately reduce the windward surface, so as to achieve the purpose of stable power output. As Figure 4 shown, at this time, the windward area of the work module is obviously smaller than Figure 1 the windward area in the attitude.

[0049] 4) Continuously repeat the above processes 1)-3) to convert wind energy.

[0050] Embodiment 2

[0051] As Figure 1-4 shown, the attitude-controllable high-altitude work system provided in this embodiment includes a work module 301. The work module 301 is respectively connected to a ground module and a balance module 101 through a work rope 601. The balance module 101 is a helium balloon connected to the end of the work rope 601. The balance module is mainly used to balance the weight of the entire system and control the running orientation and initial angle of attack of the system. The work module 301 has a windward surface that can be unfolded for work. Specifically, a first driving member 501 is provided on the windward surface, and the first driving member 501 drives the windward surface to move up and down on the work rope 601.

[0052] The system further includes at least two auxiliary ropes 201 passing through the windward surface. The two ends of the auxiliary rope 201 are respectively connected to the work ropes 601 on the upper side and the lower side of the windward surface, and second driving members 502 capable of moving up and down are respectively provided thereon. The second driving members 502 are connected to the windward surface through a connective that can be tensioned or relaxed. Among them, the work module can have a sail-like configuration, and the sail surface of the sail-like configuration forms the windward surface.

[0053] Specifically, the first driving member 501 is arranged at the center of the windward surface, the auxiliary ropes 201 are evenly arranged around the periphery of the center, and the distance from the auxiliary ropes 201 to the center is less than the distance from the outer edge of the windward surface to the center.

[0054] Specifically, the connecting member can be selected as a rope 401. At least three ropes 401 are respectively connected to each of the second driving members 502, and the other ends of the ropes 401 are connected to the outer edge of the windward surface. A wing surface 302 for connecting the ropes is provided on one side of the ropes 401 close to the windward surface. The setting of the wing surface can effectively prevent the windward surface from rotating and other conditions when the windward surface is deployed.

[0055] More specifically, the second driving member 502 is further provided with a winch mechanism, and the winch mechanism tightens or relaxes the rope 401. By adjusting the length of the rope, the angle of attack α of the windward surface can be adjusted according to the high-altitude wind conditions and the operation needs of the system (as Figure 5-6 shown).

[0056] Specifically, the work module includes a sensor module for recording altitude and wind conditions, and a control module for controlling the first driving member 501 and the second driving member 502. The control module is connected to the first driving member 501 and the second driving member 502 through a wireless transmission module; the system further includes a power supply module for supplying power to the sensor module, the first driving member 501 and the second driving member 502.

[0057] Among them, the sensor module transmits information such as altitude and wind conditions at the location of the work module to the control module through a wireless module (which can be set on the ground module), and the control module then controls the operation of the first driving member 501, the second driving member 502 and the winch mechanism. The power supply module is a wind power generation device arranged near the work module, and the system power can be transmitted through a power supply line wrapped around the core of the work rope 601 or placed outside the work rope.

[0058] In this embodiment, the deployed state of the windward surface is mainly adjusted by the relative positions of the first driving member 501 and the second driving member 502. When the three move to appropriate relative positions, the high-altitude wind energy will fully blow open the windward surface, convert the wind energy into tension and finally converge on the work rope 601 through the ropes 401, the first driving member 501, and the second driving member 502. Then, the huge tension acting on the work rope 601 can drive the ground module (such as a generator) to perform work. The specific work process is as follows:

[0059] 1) As Figure 2 shown, when the work module 301 runs to the preset upper limit height of work (altitude), the second driving member 502 unlocks the lock clamped on the auxiliary rope 201, and through the drive of the high-altitude wind and combined with automatic walking upward, the rope 401 is in a slack state. At this time, the windward surface will quickly fold and turn over, the windward surface rapidly decreases, and the work module 301 loses the upward power. At this time, the ground module can easily and quickly pull the work rope 601 to make the entire work module descend;

[0060] 2) During the process of the work module 301 descending to the lower limit height of work, the first driving member 501 and the second driving member 502 synchronously and rapidly descend to a predetermined position and are respectively clamped at the initial set positions of the secondary rope 201 and the work rope 601.

[0061] 3) As Figure 3 shown, when the work module 301 descends to the preset lower limit height of the system work, the first driving member 501 actively ascends. At this time, the rope 401 is in a tensioned state, and the windward side of the work module 301 will be unfolded again under the blowing of the high-altitude wind and return to Figure 1 the work state shown, pulling the work rope 601 to drive the ground module to do work.

[0062] 3.1) During the work process, at the same wind speed, the system output power is proportional to the windward area of the work module. If the high-altitude wind speed exceeds the rated wind speed, the system can lower the work altitude range to a suitable wind speed range. However, in step 3), the attitude of the windward side can also be adjusted by adjusting the relative positions of the second driving member 502 and the first driving member 501, thereby moderately reducing the windward side to achieve the purpose of stable power output. As Figure 4 shown, at this time, the windward area of the work module is obviously smaller than Figure 1 the windward area in the attitude.

[0063] Furthermore, during the process of step 3) of this embodiment, it also includes a step in which the second driving member 502 can adjust the length of the rope 401 through a hoisting mechanism. This step can change the windward angle of the windward side and realize the adjustment of the angle of attack of the work module, so that the aerial wind energy condition matches the set requirements of the system power output, as Figure 6 shown.

[0064] 4) Continuously repeat the above processes 1)-3) for wind energy conversion.

[0065] The above-described embodiments are only exemplary descriptions of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. An aerial work system with controllable attitude, comprising a work module (301), the work module (301) is respectively connected to a ground module and a balance module (101) through a work rope (601), the work module (301) has a windward surface that can be deployed for doing work, and is characterized in that, The windward side is provided with a first driving member (501), and the first driving member (501) is used to drive the windward side to move up and down on the power rope (601); The system further includes at least two auxiliary ropes (201) passing through the windward side. The two ends of the auxiliary rope (201) are respectively connected to the power ropes (601) located on the upper side and the lower side of the windward side, and are respectively provided with a second driving member (502) capable of moving up and down thereon. The second driving member (502) is connected to the outer edge of the windward side through a connecting member that can be tensioned or relaxed; The first driving member (501) is arranged at the center of the windward side, the power rope (601) passes through the center, the auxiliary ropes (201) are uniformly arranged around the periphery of the center, and the distance from the auxiliary rope (201) to the center is less than the distance from the outer edge of the windward side to the center.

2. The high-altitude work system according to claim 1, characterized in that, The connecting member includes a rope (401). At least three ropes (401) are respectively connected to each second driving member (502), and the other ends of the ropes (401) are connected to the outer edge of the windward side.

3. The high-altitude work system according to claim 2, characterized in that, The second driving member (502) is further provided with a hoisting mechanism, and the hoisting mechanism tightens or relaxes the rope (401).

4. The high-altitude work system according to claim 2, wherein The rope (401) is provided with a wing surface (302) connecting the ropes on the side close to the windward side.

5. The high-altitude work system according to any one of claims 1 to 4, characterized in that The power generation module includes a sensor module for recording altitude and wind conditions, and a control module for controlling the first driving member (501) and the second driving member (502). The control module is connected to the first driving member (501) and the second driving member (502) through a wireless transmission module; the system further includes a power supply module for supplying power to the sensor module, the first driving member (501) and the second driving member (502).

6. A working method of an altitude working system with controllable attitude, characterized in that, Comprising the following steps: 1) When the windward side of the power generation module (301) moves upward to the upper limit height of power generation, the second driving member (502) moves upward along the auxiliary rope (201), and the connecting member connecting the second driving member (502) and the windward side is relaxed, and the windward side is folded upward; 2) The ground module retracts the power rope (601), the power generation module (301) continues to move downward, and the second driving member (502) and the first driving member (501) connected to the windward side respectively move downward along the auxiliary rope (201) and the power rope (601) to the initial set position; 3) When the power generation module (301) descends to the lower limit height of power generation, the first driving member (501) moves upward along the power rope (601), the connecting member is tensioned, and the windward side is unfolded again under the action of wind; 4) The power generation module (301) moves upward under the action of wind and drives the ground module to generate power through the power rope (601); 5) Repeat the above steps 1) to 4); Wherein, at least two of the auxiliary ropes (201) pass through the windward side and the two ends are respectively connected to the power ropes (601) located on the upper side and the lower side of the windward side; The first driving member (501) is arranged at the center of the windward surface, the working rope (601) passes through the center, the auxiliary rope (201) is uniformly arranged around the periphery of the center, and the distance from the auxiliary rope (201) to the center is less than the distance from the outer edge of the windward surface to the center.

7. The work-performing method according to claim 6, wherein, Each of the second driving members (502) is provided with at least three connecting members connected to the outer edge of the windward surface.

8. The work method according to claim 6 or 7, characterized in that, The method further includes the step of adjusting the length of the connecting member.

9. The working method according to claim 6 or 7, characterized in that The working method further includes the step of adjusting the relative positions between the first driving member (501) and the second driving member (502).

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