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

Abstract

The application relates to the technical field of high-altitude wind power generation, in particular to a ground platform device suitable for high-altitude wind power generation, a working method and a system. The ground platform device is characterized in that 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 cable, and the other end of the sliding block is connected with an aerial assembly 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 aerial assembly on a horizontal plane is 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. 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, so that the aerial assembly can better catch wind and be controlled.

Description

Technical Field

[0001] This invention relates to the field of high-altitude wind power generation technology, and in particular to a platform device, working method and system suitable for high-altitude wind power generation. Background Technology

[0002] High-altitude wind energy is a new energy source that humans have just begun to research and utilize. Some studies have pointed out that the wind energy contained in the upper atmosphere is more than 100 times the total energy needs of human society. Therefore, high-altitude wind power generation technology is the future development trend of wind power generation.

[0003] Among related technologies, the umbrella-type land-based high-altitude wind power generation technology mainly utilizes lateral wind. The launch and operation of the aerial components have significant requirements for wind conditions, which can affect the wind capture and control of the aerial components.

[0004] Therefore, there is an urgent need to solve the technical problem of how to effectively capture and control wind from aerial components. Summary of the Invention

[0005] This invention provides a platform device, working method, and system suitable for high-altitude wind power generation, which can effectively capture and control wind in the air.

[0006] In a first aspect, embodiments of the present invention provide a platform device suitable for high-altitude wind power generation, comprising:

[0007] Base;

[0008] The track is mounted on the base at its bottom. A movable slider is installed inside the track. One end of the slider is connected to the motor of the high-altitude wind power generation system via a cable, and the other end is connected to the aerial component of the high-altitude wind power generation system via a cable. The orientation of the track and the orientation of the aerial component are projected onto the same horizontal plane. The track and the aerial component rotate synchronously, and the angle between them is an acute angle. The track can rotate relative to the ground to adjust its orientation.

[0009] Secondly, embodiments of the present invention provide a method for operating a platform device suitable for high-altitude wind power generation, applied to the platform device described in the above embodiments, comprising:

[0010] The aerial component is raised to a preset height, and the position of the slider on the track is fixed.

[0011] Adjust the orientation of the track so that the orientation of the track is the same as the projection of the wind direction on the horizontal plane under the current launch conditions;

[0012] Release the slider from its fixation on the track to allow the aerial component to perform upward work.

[0013] When the aerial component rises to its maximum height, the position of the slider on the track is fixed.

[0014] Adjust the orientation of the track so that its orientation is opposite to the projection of the wind direction on the horizontal plane under the current launch conditions;

[0015] Release the slider from its fixation on the track to allow the aerial component to retract downwards until it reaches the preset height, and repeat the above steps.

[0016] Thirdly, embodiments of the present invention provide a system suitable for high-altitude wind power generation, including a motor, a universal cable device, and the platform device described in the above embodiments, wherein the motor, the universal cable device, and the slider are connected in sequence by cables.

[0017] Compared with related technologies, the present invention has at least the following beneficial effects:

[0018] According to embodiments of the present invention, a platform device, working method, and system suitable for high-altitude wind power generation are provided. By setting a track on the base and a movable slider inside the track, one end of the slider is connected to the motor of the high-altitude wind power generation system via a cable, and the other end is connected to the aerial component of the high-altitude wind power generation system via a cable. Therefore, the projection of the track orientation and the aerial component orientation on the horizontal plane is the same. The track and the aerial component rotate synchronously, and the angle between them is an acute angle. In this way, when the track can rotate relative to the ground, the orientation of the aerial component can be adjusted by adjusting the orientation of the track, thereby ensuring better wind capture and control of the aerial component. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A top view of a platform device for high-altitude wind power generation provided in an embodiment of the present invention;

[0021] Figure 2 A schematic diagram of a system for high-altitude wind power generation provided in an embodiment of the present invention;

[0022] Figure 3 Another structural schematic diagram of a system suitable for high-altitude wind power generation provided in an embodiment of the present invention;

[0023] Figure 4This is another structural schematic diagram of a system suitable for high-altitude wind power generation provided in an embodiment of the present invention;

[0024] Figure 5 This is another structural schematic diagram of a system for high-altitude wind power generation provided in an embodiment of the present invention.

[0025] Figure label:

[0026] 1-Base; 2-Rail; 31-Slider; 32-Accumulator; 4-Cable; 5-Motor; 6-Aerial Component; 61-Floating Device; 62-Wind Capture Device; 7-Universal Guide Cable Device. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] like Figures 1 to 5 As shown, this embodiment of the invention provides a platform device suitable for high-altitude wind power generation, including a base 1 and a track 2. The bottom end of the track 2 is disposed on the base 1. A movable slider 31 is disposed inside the track 2. One end of the slider 31 is connected to the motor 5 of the high-altitude wind power generation system via a cable 4, and the other end is connected to the aerial component 6 of the high-altitude wind power generation system via a cable 4. The orientation of the track 2 and the orientation of the aerial component 6 are projected onto the same horizontal plane. The track 2 and the aerial component 6 rotate synchronously and the angle between them is an acute angle. The track 2 can rotate relative to the ground to adjust the orientation of the track 2.

[0029] In this embodiment, a track 2 is set on the base 1, and a movable slider 31 is set inside the track 2. One end of the slider 31 is connected to the motor 5 of the high-altitude wind power generation system via a cable 4, and the other end is connected to the aerial component 6 of the high-altitude wind power generation system via a cable 4. Therefore, the projection of the orientation of the track 2 and the orientation of the aerial component 6 on the horizontal plane is the same. The track 2 and the aerial component 6 rotate synchronously and the angle between them is an acute angle. In this way, when the track 2 can rotate relative to the ground, the orientation of the aerial component 6 can be adjusted by adjusting the orientation of the track 2, thereby ensuring better wind capture and control of the aerial component 6.

[0030] In some embodiments, the aerial component 6 includes a cable 4 and a buoyancy device 61 and a wind-catching device 62 fixed to the cable 4. The buoyancy device 61 is used to provide upward buoyancy, and the wind-catching device 62 is used to open during work to move the aerial component 6 upward, thereby driving the cable 4 to generate electricity for the motor 5, and to close during retrieval to move the aerial component 6 downward, and so on.

[0031] In some embodiments, the levitation device 61 may be a helium balloon or other device with levitation function, which is not specifically limited here.

[0032] In some embodiments, the wind-catching device 62 may be an umbrella ladder or other device with wind-catching function, which is not specifically limited here.

[0033] Please continue reading. Figure 1 The two dotted lines on the base 1 represent the trajectory of the bottom end of the track 2. There are two ways to make the track 2 rotate relative to the ground: First, the bottom end of the track 2 is fixed on the base 1, and the base 1 can rotate relative to the ground; Second, the bottom end of the track 2 can rotate relative to the base 1, and the base 1 is fixed on the ground.

[0034] In implementing the first method, for example, a rotating device (not shown in the figure) can be installed below the base 1. This rotating device can then be used to drive the base 1 and the track 2 to rotate relative to the ground. Of course, other structures can also be used to implement the first method, and no specific limitations are made here.

[0035] In implementing the second method, for example, it can be done as follows: Figure 1 The dotted lines on the base 1 shown indicate the location of a circular track. A roller is installed at the bottom of the track 2, allowing the track 2 to rotate relative to the ground by rolling the roller on the circular track. Of course, other structures can also be used to implement this second method, and no specific limitations are specified here.

[0036] Please continue reading Figure 2 In one embodiment of the present invention, when the aerial component 6 performs upward work, the projection of the orientation of the track 2 (i.e., horizontal to the right) and the wind direction (i.e., horizontal to the right) under the current launch conditions onto the horizontal plane is the same. This setting maximizes the wind-catching efficiency of the aerial component 6. At this time, the wind-catching device 62 of the aerial component 6 is in the open or working state.

[0037] Please continue reading Figure 3In one embodiment of the present invention, when the aerial component 6 is retracted downwards, the projection of the orientation of the track 2 (i.e., horizontal to the right) and the wind direction under the current launch conditions (i.e., horizontal to the left) onto the horizontal plane is opposite. This arrangement minimizes the energy consumption for the recovery of the aerial component 6. At this time, the wind-catching device 62 of the aerial component 6 is in the closed or retracted state.

[0038] Please continue reading. Figures 2 to 4 In one embodiment of the present invention, the distance from the top of the track 2 to the base 1 is adjustable to adjust the elevation angle of the track 2. That is, the elevation angle α of the track 2 is adjustable, so that by adjusting the elevation angle of the track 2, the included angle β between the aerial component 6 and the track 2 can be adjusted.

[0039] In some embodiments, a telescopic structure (e.g., a hydraulic rod) can be installed between the track 2 and the base 1 to adjust the elevation angle of the track 2. When the track 2 rotates relative to the base 1, the end of the telescopic structure connected to the track 2 can be configured as a movable end to facilitate the rotation of the track 2.

[0040] It should be noted that the included angle β between the aerial component 6 and the track 2 is a crucial factor affecting wind capture efficiency. This is because when β is greater than 0, damping occurs between the slider 31 and the track 2 during movement, leading to a decrease in wind capture efficiency. When β equals 0 (i.e., ...), the wind capture efficiency decreases. Figure 4 and Figure 5 (As shown in the state), at this time the wind-catching efficiency of the aerial component 6 reaches its maximum.

[0041] It is worth noting that, in the embodiments of the present invention, Figures 2 to 5 In the shown state, the projections of the orientation of track 2 and the orientation of the aerial component 6 onto the horizontal plane are always the same; that is, regardless of whether the aerial component 6 is performing upward work or retracting downwards, the projections of the orientation of track 2 and the orientation of the aerial component 6 onto the horizontal plane are always the same. Figure 4 and Figure 5 In the state shown, the orientation of track 2 is parallel to the orientation of aerial component 6, that is, the orientation of track 2 and the orientation of aerial component 6 are exactly the same and parallel in three-dimensional space, and β equals 0.

[0042] However, considering that high-altitude wind power generation does not need to maintain maximum power output continuously, but should match grid connection requirements, i.e., there is a peak-shaving situation, the power output of the aerial component 6 can be indirectly controlled by adjusting the damping generated between the slider 31 and the track 2 by adjusting the angle β between the aerial component 6 and the track 2.

[0043] In some embodiments, when the wind-catching device 62 of the aerial component 6 adopts an umbrella ladder, the number of umbrellas that can be opened and closed can be selected according to the actual wind conditions to regulate the power output of the aerial component 6, thereby maximizing the utilization of wind energy.

[0044] It is understandable that slider 31 should have the following constraints in track 2: 1) slider 31 can move freely and be limited in track 2; 2) the friction between slider 31 and track 2 should be as small as possible; 3) slider 31 cannot detach from track 2. Therefore, the specific structure of slider 31 and track 2 can be designed based on the above constraints.

[0045] In some embodiments, the slider 31 can be a wheel-like structure with rotating shafts on both sides. A first strip-shaped groove is provided in the middle of the track 2 to provide rolling space for the wheel-like structure, and second strip-shaped grooves are also provided on both sides of the first strip-shaped groove to provide rolling space for the rotating shafts. This can be understood as a groove-shaped structure similar to an inverted Ω. Multiple limiting holes are evenly formed at the bottom of the first strip-shaped groove. Retractable limiting posts are provided on both sides of the wheel-like structure. When the limiting posts are inserted into the limiting holes, the position of the slider 31 is restricted; when the limiting posts are disengaged from the limiting holes, the restriction on the slider 31 is released. In this way, the constraint on the slider 31 in the track 2 is satisfied. Of course, other structures that can satisfy the constraint can also be used, and no specific limitations are made here.

[0046] Furthermore, embodiments of the present invention also provide a method for operating a platform device suitable for high-altitude wind power generation, applied to the platform device mentioned in any of the above embodiments, including:

[0047] Step S1: Raise the aerial component 6 to a preset height and fix the position of the slider 31 on the track 2;

[0048] Step S2: Adjust the orientation of track 2 so that the orientation of track 2 is the same as the projection of the wind direction on the horizontal plane under the current launch conditions;

[0049] Step S3: Release the slider 31 from the track 2 so that the aerial component 6 can do work upwards;

[0050] Step S4: When the aerial component 6 rises to its maximum height, fix the position of the slider 31 on the track 2;

[0051] Step S5: Adjust the orientation of track 2 so that the orientation of track 2 is opposite to the projection of the wind direction on the horizontal plane under the current launch conditions;

[0052] Step S6: Release the slider 31 from the track 2 so that the aerial component 6 can be retracted downwards until the aerial component 6 descends to the preset height, and repeat the above steps S1 to S5.

[0053] It is understood that the working method of the platform device for high-altitude wind power generation provided in the embodiments of the present invention and the platform device for high-altitude wind power generation provided in the above embodiments are based on the same inventive concept, and therefore have the same beneficial effects. The beneficial effects of the working method of the platform device for high-altitude wind power generation will not be elaborated here.

[0054] Please continue reading. Figure 4 and Figure 5 In one embodiment of the present invention, after adjusting the orientation of the track 2 and before releasing the slider 31 from the track 2 (i.e., between steps S5 and S6), the method further includes:

[0055] Adjust the elevation angle of track 2 so that the orientation of track 2 is parallel to the orientation of aerial component 6.

[0056] In this embodiment, by adjusting the elevation angle of the track 2 so that the orientation of the track 2 is parallel to the orientation of the aerial component 6, the wind-catching efficiency of the aerial component 6 can be maximized.

[0057] In one embodiment of the present invention, the above method further includes:

[0058] When the air component 6 is doing upward work, adjust the elevation angle of the track 2 to adjust the damping between the slider 31 and the track 2.

[0059] In this embodiment, the power output of the airborne component 6 is indirectly controlled by adjusting the damping between the slider 31 and the track 2, thereby better adapting to the grid connection requirements.

[0060] Please continue reading. Figures 2 to 5 The present invention also provides a system suitable for high-altitude wind power generation, including a motor 5, a universal cable device 7, and a platform device as mentioned in any of the above embodiments, wherein the motor 5, the universal cable device 7, and the slider 31 are connected in sequence by a cable 4.

[0061] It is understood that the system for high-altitude wind power generation provided in the embodiments of the present invention and the platform device for high-altitude wind power generation provided in the above embodiments are based on the same inventive concept, and therefore have the same beneficial effects. The beneficial effects of the system for high-altitude wind power generation will not be elaborated here.

[0062] Please continue reading. Figure 5 In one embodiment of the present invention, the above system further includes an energy storage device 32, which includes a fixed end and a movable end. The fixed end is fixed on the track 2, and the movable end is fixed on the slider 31.

[0063] When the air component 6 does upward work, the energy storage device 32 stores energy;

[0064] As the air component 6 is retracted downwards, the energy storage device 32 releases energy.

[0065] In this embodiment, by setting an energy storage device 32 on the track 2, energy can be stored when the air component 6 does work upward, and the stored energy can be released when the air component 6 is retracted downward, thereby greatly reducing the energy consumption of the air component 6 during recovery.

[0066] In one embodiment of the present invention, the accumulator 32 can be loaded using a spring-type, piston-type, or gas-type method. Figure 5 The accumulator 32 shown is loaded using a spring-loaded method.

[0067] Specifically, there are three types of accumulators: Spring-type: Excess pressure energy in the hydraulic system is converted into spring potential energy by compressing a spring and stored, then released when needed. It has a simple structure and low cost. Piston-type: Pressure energy in the hydraulic system is converted into gravitational potential energy by lifting a mass block loaded on a sealed piston. It has a simple structure and stable pressure. Gas-type: Energy conversion is achieved by compressing gas. During use, gas at a predetermined pressure is first charged into the accumulator 32. When the system pressure exceeds the internal pressure of the accumulator 32, the oil compresses the gas, converting the pressure in the oil into the internal energy of the gas. When the system pressure is lower than the internal pressure of the accumulator 32, the oil in the accumulator 32 flows to the external system under the action of high-pressure gas, releasing energy.

[0068] In one embodiment of the present invention, the spring is in a stretched state when the airborne component 6 begins to perform upward work. This arrangement allows the tension of the spring to be further utilized to provide upward power for the airborne component 6, thereby indirectly reducing the energy consumption of the airborne component 6.

[0069] It should be noted that when the spring is compressed to the appropriate position, the wind-catching device 62 is retracted so that the spring force can be used to push the slider 31 back. If necessary, the generator 5 can be reversed to consume a little power.

[0070] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0071] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is only used to illustrate the technical solution of the present invention, and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention are included within the scope of protection of the present invention.

Claims

1. A method for operating a platform device suitable for high-altitude wind power generation, characterized in that, The platform assembly includes: Base (1); The track (2) is set at its bottom end on the base (1). A movable slider (31) is set inside the track (2). One end of the slider (31) is connected to the motor (5) of the high-altitude wind power generation system via a cable (4), and the other end is connected to the air component (6) of the high-altitude wind power generation system via a cable (4). The orientation of the track (2) and the orientation of the air component (6) are the same on the horizontal plane. The track (2) and the air component (6) rotate synchronously and the included angle between them is an acute angle. The track (2) can rotate relative to the ground to adjust the orientation of the track (2). The aerial component (6) includes a buoyancy device (61) and a wind-catching device (62) fixed to the cable (4). The buoyancy device (61) is used to provide upward buoyancy, and the wind-catching device (62) is used to open when working to make the aerial component (6) move upward, thereby driving the cable (4) to generate electricity for the motor (5), and to close when retrieving to make the aerial component (6) move downward, and so on repeatedly; the wind-catching device (62) is a parachute ladder; The track (2) is fixed to the fixed end of the accumulator (32), and the slider (31) is fixed to the movable end of the accumulator (32); The method includes: Raise the aerial component (6) to a preset height and fix the position of the slider (31) on the track (2); Adjust the orientation of the track (2) so that the orientation of the track (2) is the same as the projection of the wind direction on the horizontal plane under the current launch conditions; Release the slider (31) from the track (2) so that the air component (6) can do upward work; wherein, when the air component (6) does upward work, the accumulator (32) stores energy; When the aerial component (6) rises to its maximum height, the position of the slider (31) on the track (2) is fixed. Adjust the orientation of the track (2) so that the orientation of the track (2) is opposite to the projection of the wind direction on the horizontal plane under the current launch conditions; Release the slider (31) from the track (2) so that the air component (6) can be retracted downwards until the air component (6) descends to the preset height, and repeat the above steps; wherein, when the air component (6) is retracted downwards, the energy accumulator (32) releases energy to reduce the energy consumption of the air component (6) during the retraction; Among them, the loading method of the accumulator (32) adopts a spring type. When the air component (6) starts to do work upward, the spring is in a stretched state, so as to further utilize the tension of the spring to provide the upward power of the air component (6), thereby indirectly reducing the energy consumption of the air component (6); when the spring is compressed to a suitable position, the parachute ladder is retracted, so as to use the elastic force of the spring to push the slider (31) back.

2. The working method according to claim 1, characterized in that, The bottom end of the track (2) is fixed to the base (1), and the base (1) can rotate relative to the ground.

3. The working method according to claim 1, characterized in that, The bottom end of the track (2) can rotate relative to the base (1), which is fixed to the ground.

4. The working method according to claim 1, characterized in that, When the air component (6) performs upward work, the orientation of the track (2) and the projection of the wind direction under the current launch conditions onto the horizontal plane are the same.

5. The working method according to claim 1, characterized in that, When the aerial component (6) is retracted downwards, the orientation of the track (2) and the projection of the wind direction under the current launch conditions onto the horizontal plane are opposite.

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

7. The working method according to claim 1, characterized in that, After adjusting the orientation of the track (2) and before releasing the slider (31) from its fixation on the track (2), the following steps are also included: Adjust the elevation angle of the track (2) so that the orientation of the track (2) is parallel to the orientation of the aerial component (6).

8. The working method according to claim 1, characterized in that, Also includes: When the air component (6) performs upward work, the elevation angle of the track (2) is adjusted to adjust the damping between the slider (31) and the track (2).

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