Platform device suitable for high-altitude wind power generation, working method and system

Abstract

The invention relates to the technical field of high-altitude wind power generation, in particular to a platform device suitable for high-altitude wind power generation, a working method and a system. According to the platform device, a track is arranged on a base, a movable sliding block is arranged in the track, one end of the sliding block is connected with a motor of a high-altitude wind power generation system through a mooring rope, and the other end of the sliding block is connected with an aerial assembly of the high-altitude wind power generation system through a mooring rope; therefore, the projection of the orientation of the track and the projection of the orientation of the aerial assembly on the horizontal plane are the same, the track and the aerial assembly rotate synchronously, and the included angle between the track and the aerial assembly is an acute angle, so that when the track can rotate relative to the ground, the orientation of the aerial assembly can be adjusted by adjusting the orientation of the track, and better wind catching and control of the aerial assembly are guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of high-altitude wind power generation, and in particular to a platform device suitable for high-altitude wind power generation, a working method and a system. BACKGROUND

[0002] High-altitude wind energy is a new energy that humans have just begun to develop and utilize. Research shows that the wind energy contained in the high-altitude is more than 100 times the total energy required by human society, so high-altitude wind power generation technology is the development trend of future wind power generation.

[0003] In the related art, the umbrella ladder type land-based high-altitude wind power generation technology route mainly utilizes the horizontal wind, and the air component has not small requirements for wind conditions when being released and worked, which will affect the wind catching and control of the air component.

[0004] Therefore, the technical problem of how to effectively catch wind and control the air component needs to be solved at present. SUMMARY

[0005] The embodiments of the present application provide a platform device suitable for high-altitude wind power generation, a working method and a system, which can effectively catch wind and control the air component.

[0006] In a first aspect, the embodiments of the present application provide a platform device suitable for high-altitude wind power generation, comprising: a base; a track, a bottom end of which is arranged on the base, a movable sliding block is arranged in the track, one end of the sliding block is connected with a motor of a high-altitude wind power generation system through a cable, the other end is connected with an air component of the high-altitude wind power generation system through a cable, the orientation of the track and the orientation of the air component are the same in the projection on the horizontal plane, the track and the air component rotate synchronously and the included angle between the track and the air component is an acute angle, and the track can rotate relative to the ground to adjust the orientation of the track.

[0007] In a second aspect, the embodiments of the present application provide a working method of a platform device suitable for high-altitude wind power generation, which is applied to the platform device in the above-mentioned embodiments, and comprises: lifting the air component to a preset height, and fixing the position of the sliding block on the track; adjusting the orientation of the track, so that the orientation of the track and the wind direction in the current release condition are the same in the projection on the horizontal plane; releasing the fixing of the sliding block on the track, so that the air component works upward; fixing the position of the sliding block on the track when the air component rises to the maximum height; adjusting the orientation of the track so that the projection of the orientation of the track and the orientation of the air component in the horizontal plane is opposite to the wind direction in the current flying condition; releasing the fixing of the slider on the track so that the air component is recovered downward until the air component is lowered to the preset height, and the above steps are repeatedly performed.

[0008] In a third aspect, the embodiment of the present application provides a system suitable for high-altitude wind power generation, comprising a motor, a universal cable guiding device and the ground platform device described in the above embodiment, the motor, the universal cable guiding device and the slider are sequentially connected through a cable.

[0009] Compared with the related art, the present application has at least the following beneficial effects: According to the ground platform device, the working method and the system suitable for high-altitude wind power generation provided by the embodiment of the present application, the track is arranged on the base, the movable slider is arranged in the track, one end of the slider is connected with the motor of the high-altitude wind power generation system through a cable, and the other end is connected with the air component of the high-altitude wind power generation system through a cable, so that the projection of the orientation of the track and the orientation of the air component in the horizontal plane is the same, the track and the air component rotate synchronously and the included angle between the track and the air component is an acute angle. Therefore, when the track can rotate relative to the ground, the orientation of the air component can be adjusted by adjusting the orientation of the track, so that the air component can better catch wind and be controlled. BRIEF DESCRIPTION OF DRAWINGS

[0010] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0011] Figure 1 A top view of the ground platform device suitable for high-altitude wind power generation provided by the embodiment of the present application; Figure 2 A structure schematic view of the system suitable for high-altitude wind power generation provided by the embodiment of the present application; Figure 3 Another structure schematic view of the system suitable for high-altitude wind power generation provided by the embodiment of the present application; Figure 4 Still another structure schematic view of the system suitable for high-altitude wind power generation provided by the embodiment of the present application; Figure 5 Still another structure schematic view of the system suitable for high-altitude wind power generation provided by the embodiment of the present application.

[0012] Reference signs: 1-base; 2-track; 31-slid; 32-accumulator; 4-cable; 5-motor; 6-aerial assembly; 61-aerostat; 62-wind catcher; 7- universal fairlead. DETAILED DESCRIPTION

[0013] To make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present application.

[0014] As shown in Figures 1 to 5 the embodiments of the present application provide a platform device suitable for high-altitude wind power generation, which comprises a base 1 and a track 2, the bottom end of the track 2 is arranged on the base 1, a movable slider 31 is arranged in the track 2, one end of the slider 31 is connected with a motor 5 of a high-altitude wind power generation system through a cable 4, the other end is connected with an aerial assembly 6 of the high-altitude wind power generation system through the cable 4, the orientation of the track 2 and the orientation of the aerial assembly 6 are the same in the projection on the horizontal plane, the track 2 and the aerial assembly 6 rotate synchronously and the included angle between them is an acute angle, and the track 2 can rotate relative to the ground to adjust the orientation of the track 2.

[0015] In the embodiments, the track 2 is arranged on the base 1, the movable slider 31 is arranged in the track 2, one end of the slider 31 is connected with the motor 5 of the high-altitude wind power generation system through the cable 4, the other end is connected with the aerial assembly 6 of the high-altitude wind power generation system through the cable 4, thus the orientation of the track 2 and the orientation of the aerial assembly 6 are the same in the projection on the horizontal plane, the track 2 and the aerial assembly 6 rotate synchronously and the included angle between them is an acute angle, so when the track 2 can rotate relative to the ground, the orientation of the aerial assembly 6 can be adjusted by adjusting the orientation of the track 2, thereby ensuring better wind catching and control of the aerial assembly 6.

[0016] In some embodiments, the aerial assembly 6 comprises the cable 4 and the aerostat 61 and the wind catcher 62 fixed on the cable 4, the aerostat 61 is used to provide upward buoyancy, and the wind catcher 62 is used to open when doing work to make the aerial assembly 6 move upward, thereby driving the cable 4 to generate electricity for the motor 5, and close when recovering to make the aerial assembly 6 move downward, and so on.

[0017] In some embodiments, the aerostat 61 can be a helium balloon or other device with aerostat function, which is not limited here.

[0018] In some embodiments, the wind catching device 62 can be a parachute or other device with wind catching function, which is not specifically limited here.

[0019] Please continue to refer to Figure 1 The two dotted lines on the base 1 represent the trajectory of the bottom end of the track 2 rotating, and the way of realizing the rotation of the track 2 relative to the ground includes two kinds: the first kind, the bottom end of the track 2 is fixed on the base 1, and the base 1 can rotate relative to the ground; the second kind, the bottom end of the track 2 can rotate relative to the base 1, and the base 1 is fixed on the ground.

[0020] When the first kind is specifically implemented, for example, a rotating device (not shown in the figure) can be arranged below the base 1, so that the rotating device can drive the base 1 and the track 2 to rotate relative to the ground as a whole. Of course, the specific scheme for realizing the first kind can also be other structures, which are not specifically limited here.

[0021] When the second kind is specifically implemented, for example, a circular track can be arranged on the trajectory formed by the dotted lines on the base 1 as shown in Figure 1 A roller is arranged at the bottom end of the track 2, so that the track 2 can roll on the circular track by using the roller to realize the rotation of the track 2 relative to the ground. Of course, the specific scheme for realizing the second kind can also be other structures, which are not specifically limited here.

[0022] Please continue to refer to Figure 2 In an embodiment of the present application, when the air assembly 6 works upward, the orientation of the track 2 (i.e. horizontally to the right) is the same as the projection of the wind direction (i.e. horizontally to the right) under the current flying condition on the horizontal plane. By such arrangement, the wind catching efficiency of the air assembly 6 can be the highest. At this time, the wind catching device 62 of the air assembly 6 is in an open or working state.

[0023] Please continue to refer to Figure 3 In an embodiment of the present application, when the air assembly 6 recovers downward, the orientation of the track 2 (i.e. horizontally to the right) is opposite to the projection of the wind direction (i.e. horizontally to the left) under the current flying condition on the horizontal plane. By such arrangement, the energy consumption of the recovery of the air assembly 6 can be the lowest. At this time, the wind catching device 62 of the air assembly 6 is in a closed or recovery state.

[0024] Please continue to refer to Figures 2 to 4 In an embodiment of the present application, the distance from the top end of the track 2 to the base 1 is adjustable to adjust the elevation angle of the track 2. That is, the elevation angle a of the track 2 is adjustable, so that by adjusting the elevation angle of the track 2, the included angle β between the air assembly 6 and the track 2 can be adjusted.

[0025] In some embodiments, a telescopic structure (e.g. a hydraulic rod) can be installed between the track 2 and the base 1, i.e. to realize the adjustment of the elevation angle of the track 2. When the track 2 rotates relative to the base 1, the end of the telescopic structure connected with the track 2 can be set as a movable end to cooperate with the rotation of the track 2.

[0026] It should be noted that the angle β between the aerial assembly 6 and the track 2 is an important factor affecting the wind capturing efficiency, because when β is greater than 0, the slider 31 will generate damping with the track 2 during movement, thus leading to a decrease in the wind capturing efficiency, and when β is equal to 0 (i.e. the aerial assembly 6 is parallel to the track 2), the wind capturing efficiency of the aerial assembly 6 reaches the maximum. Figure 4 and Figure 5 As shown in the state, the wind capturing efficiency of the aerial assembly 6 reaches the maximum.

[0027] It should be noted that in the embodiments of the present application, Figures 2 to 5 As shown in the state, the orientation of the track 2 and the orientation of the aerial assembly 6 are always the same in the horizontal plane, i.e. the orientation of the track 2 and the orientation of the aerial assembly 6 are always the same in the horizontal plane whether the aerial assembly 6 works upward or recovers downward. And Figure 4 and Figure 5 As shown in the state, the orientation of the track 2 and the orientation of the aerial assembly 6 are parallel, i.e. the orientation of the track 2 and the orientation of the aerial assembly 6 are completely the same and parallel in the three-dimensional space, and at this time β is equal to 0.

[0028] However, considering that the high-altitude wind power generation does not need to continuously maintain the maximum power output, but should match the grid-connected requirements of the power grid, i.e. there is peak regulation. Therefore, by adjusting the angle β between the aerial assembly 6 and the track 2, the damping generated between the slider 31 and the track 2 can be adjusted, so as to indirectly regulate the power output of the aerial assembly 6.

[0029] In some embodiments, when the wind capturing device 62 of the aerial assembly 6 adopts a ladder-shaped umbrella, the number of umbrella opening and closing can also be selected according to the actual wind conditions to regulate the power output of the aerial assembly 6, so as to maximize the utilization of wind energy.

[0030] It can be understood that the slider 31 in the track 2 should have the following constraints: 1) the slider 31 can freely move and be limited in the track 2; 2) the friction between the slider 31 and the track 2 should be as small as possible; 3) the slider 31 cannot be separated from the track 2. Therefore, the specific structure of the slider 31 and the track 2 can be designed based on the above constraint limitations.

[0031] In some embodiments, the slider 31 can be a wheeled structure, and has rotating shafts on both sides, the track 2 is provided with a first slot in the middle for providing rolling of the wheeled structure, and is also provided with a second slot on both sides of the first slot for providing rolling of the rotating shafts, which can be understood as a slot structure similar to inverted omega, a plurality of limiting holes are uniformly arranged at the bottom of the first slot, and a retractable limiting column is arranged on both sides of the wheeled structure, when the limiting column is inserted into the limiting hole, the position of the slider 31 is limited, and when the limiting column is separated from the limiting hole, the limiting of the slider 31 is released. In this way, the above-mentioned constraint of the slider 31 in the track 2 can be met. Of course, other structures that can meet the constraint can also be used, which are not limited here.

[0032] In addition, the embodiment of the present application also provides a working method of the platform device suitable for high-altitude wind power generation, which is applied to the platform device mentioned in any of the above embodiments and comprises the following steps: Step S1, raising the aerial assembly 6 to a preset height, and fixing the position of the slider 31 on the track 2; Step S2, adjusting the orientation of the track 2, so that the orientation of the track 2 is the same as the projection of the wind direction under the current release condition on the horizontal plane; Step S3, releasing the fixing of the slider 31 on the track 2, so that the aerial assembly 6 works upwardly; Step S4, fixing the position of the slider 31 on the track 2 when the aerial assembly 6 rises to the maximum height; Step S5, adjusting the orientation of the track 2, so that the orientation of the track 2 is opposite to the projection of the wind direction under the current release condition on the horizontal plane; Step S6, releasing the fixing of the slider 31 on the track 2, so that the aerial assembly 6 is recovered downwardly until the aerial assembly 6 descends to the preset height, and the above-mentioned steps S1-S5 are repeatedly executed.

[0033] It can be understood that the working method of the platform device suitable for high-altitude wind power generation provided by the embodiment of the present application and the platform device suitable for high-altitude wind power generation provided by the above-mentioned embodiments are based on the same inventive concept, and therefore have the same beneficial effects, and the beneficial effects of the working method of the platform device suitable for high-altitude wind power generation will not be described here.

[0034] Please continue to refer to Figure 4 and Figure 5 In an embodiment of the present application, after the orientation of the track 2 is adjusted and before the fixing of the slider 31 on the track 2 is released (i.e. between steps S5 and S6), the above-mentioned method further comprises: Adjusting the elevation angle of the track 2, so that the orientation of the track 2 is parallel to the orientation of the aerial assembly 6.

[0035] In the embodiment, the wind capturing efficiency of the airborne assembly 6 can be maximized by adjusting the elevation angle of the track 2 so that the orientation of the track 2 is parallel to the orientation of the airborne assembly 6.

[0036] In an embodiment of the present application, the method further comprises: When the airborne assembly 6 works upwardly, the elevation angle of the track 2 is adjusted to adjust the damping between the slider 31 and the track 2.

[0037] In the embodiment, the power output of the airborne assembly 6 can be indirectly controlled by adjusting the damping between the slider 31 and the track 2, so that the grid-connection requirements of the power grid can be better met.

[0038] Please continue to refer to Figures 2 to 5 The embodiment of the present application further provides a system suitable for high-altitude wind power generation, which comprises the motor 5, the universal cable guiding device 7 and the ground device mentioned in any of the above embodiments, and the motor 5, the universal cable guiding device 7 and the slider 31 are sequentially connected through the cable 4.

[0039] It can be understood that the system suitable for high-altitude wind power generation provided by the embodiment of the present application and the ground device suitable for high-altitude wind power generation provided by the above embodiments are based on the same inventive concept, and thus have the same beneficial effects, and the beneficial effects of the system suitable for high-altitude wind power generation will not be described here.

[0040] Please continue to refer to Figure 5 In an embodiment of the present application, the system further comprises an energy accumulator 32, which comprises a fixed end and a movable end, the fixed end is fixed to the track 2, and the movable end is fixed to the slider 31. When the airborne assembly 6 works upwardly, the energy accumulator 32 accumulates energy. When the airborne assembly 6 works downwardly, the energy accumulator 32 releases energy.

[0041] In the embodiment, the energy accumulator 32 is arranged on the track 2, so that energy can be accumulated when the airborne assembly 6 works upwardly, and the stored energy can be released when the airborne assembly 6 works downwardly, thereby greatly reducing the energy consumption of the airborne assembly 6 during recovery.

[0042] In an embodiment of the present application, the loading mode of the energy accumulator 32 can be spring type, piston type or gas type. Figure 5 The loading mode of the energy accumulator 32 shown is spring type.

[0043] Specifically, spring type: rely on the compression spring to convert the excess pressure energy in the hydraulic system into spring potential energy storage, when needed to release. Its simple structure, low cost. Piston type: through the lifting load on the sealed piston mass block to convert the pressure energy in the hydraulic system into gravitational potential energy accumulation. Its simple structure, stable pressure. Gas type: through the compression of gas to complete the energy conversion, use first to the accumulator 32 filled with predetermined pressure gas, when the system pressure exceeds the accumulator 32 internal pressure, oil compression gas, the pressure in the oil into the gas internal energy; when the system pressure is lower than the accumulator 32 internal pressure, the accumulator 32 in the oil under the action of high pressure gas to the outside system, release energy.

[0044] In one embodiment of the present application, when the air assembly 6 starts to work upward, the spring is in tension. So set, can further use the tension of the spring to provide the power of the air assembly 6 upward, thereby indirectly reducing the energy consumption of the air assembly 6 recovery.

[0045] It should be noted that when the spring is compressed to the appropriate position to collect wind device 62, to use the spring force to push the slider 31 back, if necessary, can reverse the generator 5 slightly power consumption.

[0046] It should be noted that in this paper, such as the first and second relationship terms are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the term "includes", "contains" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent in such process, method, article or equipment. Without more limitations, the element defined by the statement "includes a" does not exclude the presence of additional same elements in the process, method, article or equipment including the element.

[0047] Finally, it should be noted that the above description is only the preferred embodiment of the present application, only for the description of the technical scheme of the present application, and not for limiting the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application are included in the protection scope of the present application.

Claims

1. A platform device suitable for high altitude wind power generation, characterized in that, Comprising: a base (1); a track (2) with a bottom end fixed on the base (1), a movable slider (31) arranged in the track (2), one end of the slider (31) connected with a motor (5) of a high-altitude wind power generation system through a cable (4), the other end of the slider (31) connected with an aerial component (6) of the high-altitude wind power generation system through the cable (4), the orientation of the track (2) and the orientation of the aerial component (6) having the same projection on a horizontal plane, the track (2) and the aerial component (6) rotating synchronously and the included angle between the track (2) and the aerial component (6) being an acute angle, the track (2) being rotatable relative to the ground to adjust the orientation of the track (2).

2. The floor platform of claim 1, wherein, The bottom end of the track (2) is fixed on the base (1), and the base (1) is rotatable relative to the ground.

3. The floor platform of claim 1, wherein, The bottom end of the track (2) is rotatable relative to the base (1), and the base (1) is fixed on the ground.

4. The floor platform of claim 1, wherein, When the aerial component (6) works upward, the orientation of the track (2) and the wind direction under the current flying condition have the same projection on a horizontal plane.

5. The floor platform of claim 1, wherein, When the aerial component (6) is recovered downward, the orientation of the track (2) and the wind direction under the current flying condition have opposite projections on a horizontal plane.

6. The platform arrangement according to any of claims 1 - 5, characterized in that The distance from the top end of the track (2) to the base (1) is adjustable to adjust the elevation angle of the track (2).

7. A method of operating a platform suitable for use in high altitude wind power generation, characterised in that, Applied to the ground device as claimed in any one of claims 1-6, comprising: lifting the aerial component (6) to a preset height and fixing the position of the slider (31) on the track (2); adjusting the orientation of the track (2) so that the orientation of the track (2) and the wind direction under the current flying condition have the same projection on a horizontal plane; releasing the fixing of the slider (31) on the track (2) to make the aerial component (6) work upward; fixing the position of the slider (31) on the track (2) when the aerial component (6) rises to the maximum height; adjusting the orientation of the track (2) so that the orientation of the track (2) and the wind direction under the current flying condition have opposite projections on a horizontal plane; releasing the fixing of the slider (31) on the track (2) to make the aerial component (6) recover downward until the aerial component (6) drops to the preset height, and repeating the above steps.

8. The method of working according to claim 7, characterized in that, After the adjustment of the orientation of the track (2) and before the releasing of the fixing of the slider (31) on the track (2), further comprising: adjusting the elevation angle of the track (2) so that the orientation of the track (2) and the orientation of the aerial component (6) are parallel.

9. The method of claim 7, wherein, Further comprising: adjusting the elevation angle of the track (2) to adjust the damping between the slider (31) and the track (2) when the aerial component (6) works upward.

10. A system suitable for high altitude wind power generation, characterized in that, Comprising a motor (5), a universal cable guiding device (7), and a ground device as claimed in any one of claims 1-6, the motor (5), the universal cable guiding device (7), and the slider (31) being connected in sequence through a cable (4).

Images