Upper and lower assembly type high-altitude suspension power generation device and system

Abstract

The invention provides an up-and-down assembly type high-altitude suspension power generation device and system.The up-and-down assembly type high-altitude suspension power generation device comprises a floating assembly, a power generation assembly and a posture regulation and control assembly, the floating assembly is provided with a flat plate type air bag, and the power generation assembly comprises a first draught fan and a second draught fan; the first draught fan and the second draught fan are arranged on the two opposite sides of the flat plate type air bag in the vertical direction correspondingly. The posture regulation and control assembly comprises a mooring rope and a winch, one end of the mooring rope is connected with the floating assembly, the other end of the mooring rope is connected with the ground fixing device, a traction rope is wound around the winch and connected with the floating assembly, and the winch is used for adjusting the winding and unwinding length of the traction rope so as to adjust the suspension posture of the floating assembly. The high-altitude stable suspension power generation device can realize the targets of high-altitude stable suspension and efficient power generation, and has the advantages of high power generation efficiency, good stability and strong adaptability.

Description

Technical Field

[0001] This invention relates to the field of high-altitude power generation technology, specifically to a vertically integrated high-altitude suspended power generation device and system. Background Technology

[0002] The airspace at altitudes of hundreds to thousands of meters contains extremely rich wind energy resources, possessing enormous potential and broad prospects. In related technologies, high-altitude wind energy utilization equipment is mostly of kite-like and airship-like structures. However, the space available for deployment of such structures is limited, resulting in a relatively small number of installed wind turbines. Furthermore, the high-altitude environment is complex and changeable, with strong airflow disturbances. These structures are significantly affected by high-altitude airflow disturbances, leading to poor overall stability and making it difficult to achieve reliable, long-term operation. Summary of the Invention

[0003] This invention aims to at least partially solve the technical problems in related technologies. To this end, embodiments of this invention propose a vertically integrated high-altitude suspended power generation device and system, which can achieve stable suspension and efficient power generation at high altitudes, possessing advantages such as high power generation efficiency, good stability, and strong adaptability.

[0004] According to a first aspect of this application, the high-altitude levitation power generation device provided by this application includes a levitation component, a power generation component, and an attitude control component. The levitation component has a flat-plate airbag, and the power generation component includes a first fan and a second fan, which are respectively located on opposite sides of the flat-plate airbag in the vertical direction. The attitude control component includes a tethering cable and a winch. One end of the tethering cable is connected to the levitation component, and the other end of the tethering cable is connected to a ground fixing device. A traction rope is wound on the winch, and the traction rope is connected to the levitation component. The winch is used to adjust the length of the traction rope to adjust the levitation attitude of the levitation component.

[0005] In some embodiments, the power generation assembly further includes a connecting mechanism, the flat airbag has a through channel that extends along the vertical direction of the airbag, the connecting mechanism is disposed within the through channel, and the two ends of the connecting mechanism are correspondingly connected to the first wind turbine and the second wind turbine.

[0006] In some embodiments, the connecting mechanism includes a telescopic rod whose length is adjustable in the vertical direction of the airbag. One end of the telescopic rod is connected to the levitation assembly, and the other end of the telescopic rod is connected to the first fan or the second fan to adjust the height of the first fan or the second fan.

[0007] In some embodiments, the winches are provided in multiple locations, and the traction rope of one of the multiple winches is connected to the telescopic rod. The winches adjust the extension and retraction length of the telescopic rod through the traction rope.

[0008] In some embodiments, the connecting mechanism further includes a fixed disk, a rotating disk, and a driver. The fixed disk is disposed at the end of the telescopic rod, the rotating disk is rotatably connected to the fixed disk, the first fan is disposed on the rotating disk, and the output end of the driver is rotatably connected to the rotating disk. The driver is used to drive the rotating disk to rotate relative to the fixed disk, so that the first fan folds or opens relative to the flat airbag.

[0009] In some embodiments, a mechanical brake is provided between the rotating disk and the fixed disk, the mechanical brake being used to restrict the rotation of the rotating disk relative to the fixed disk.

[0010] In some embodiments, both the first fan and the second fan include a support frame, a hub, and a plurality of blades. The support frame is disposed on the floating assembly, the hub is rotatably disposed on the support frame, and the plurality of blades are disposed at equal angles on the outer periphery of the hub.

[0011] In some embodiments, the support frame is configured as a truss structure or a single-arm cantilever structure; the hub is made of aluminum alloy or carbon composite material; and the blade is made of carbon fiber or glass fiber composite material.

[0012] In some embodiments, the flat-panel airbag includes a frame, an anti-permeability layer, and a protective layer arranged sequentially. The frame is configured as a carbon fiber truss or an aluminum alloy truss. The anti-permeability layer is configured as a multi-layered barrier membrane. The protective layer is configured as an ETFE / polyester film composite UV coating.

[0013] Based on the same inventive concept, the power generation system provided in this application includes the upper and lower group high-altitude suspended power generation device provided in any of the foregoing claims.

[0014] In summary, the high-altitude suspended power generation device and system provided in this application can achieve the goal of stable suspension and efficient power generation at high altitudes through the coordinated work of the levitation component, power generation component and attitude control component. It has the advantages of high power generation efficiency, good stability and strong adaptability, and provides an innovative solution to the problem of energy shortage. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the upper and lower group high-altitude suspended power generation device provided in the first embodiment of the present invention.

[0016] Figure 2This is a schematic diagram of the internal structure of the upper and lower group high-altitude suspended power generation device provided in the first embodiment of the present invention.

[0017] Figure 3 This is a schematic diagram of the internal structure of the upper and lower group high-altitude suspended power generation device provided in the second embodiment of the present invention.

[0018] Figure 4 This is a front view schematic diagram of the connecting mechanism in the upper and lower group high-altitude suspended power generation device provided by the present invention.

[0019] Figure 5 This is a side view schematic diagram of the connecting mechanism in the upper and lower group high-altitude suspended power generation device provided by the present invention.

[0020] Figure 6 This is a schematic diagram of the internal structure of the flat-plate airbag in the upper and lower group high-altitude suspended power generation device provided by the present invention.

[0021] Figure 7 This is a schematic diagram of the structure of the upper and lower group high-altitude suspended power generation device provided in the third embodiment of the present invention.

[0022] Reference numerals: 100, Ground fixing device; 11. Aerialization assembly; 112. Flat-plate airbag; 1121. Frame; 1122. Impermeable layer; 1123. Protective layer; 1124. Cavity; 1125. Deflector wing; 113. Penetrating channel; 114. Onboard controller; 115. Parachute; 116. Lightning rod; 117. Pressure relief valve; 12. Power generation assembly; 121. First wind turbine; 1211. Support frame; 1212. Hub; 1213. Blade; 122. Second wind turbine; 123. Connecting mechanism; 124. Telescopic rod; 1241. Sleeve; 1242. Rack; 1243. Gear; 125. Fixed plate; 126. Rotating plate; 127. Driver; 128. Brake; 1281. Brake block; 1282. Brake driver; 129. Local controller; 13. Attitude control components; 131. Mooring rope; 132. Winch; 133. Traction rope; 134. Ground controller. Detailed Implementation

[0023] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0024] like Figures 1 to 7As shown, this invention provides a vertically integrated high-altitude levitation power generation device, comprising a levitation component 11, a power generation component 12, and an attitude control component 13. The levitation component 11 has a flat-plate airbag 112, and the power generation component 12 includes a first fan 121 and a second fan 122, which are respectively located on opposite sides of the flat-plate airbag 112 in the vertical direction. The attitude control component 13 includes a tethering cable 131 and a winch 132. One end of the tethering cable 131 is connected to the levitation component 11, and the other end is connected to a ground fixing device 100. A traction rope 133 is wound around the winch 132, and the traction rope 133 is connected to the levitation component 11. The winch 132 is used to adjust the length of the traction rope 133 to adjust the levitation state of the levitation component 11.

[0025] Specifically, the flat-plate airbag 112, serving as the basic support structure for the power generation module 12, has a larger frontal area and more stable aerodynamic characteristics compared to kite-type or airship-type structures, allowing it to maintain a relatively stable suspension state under different wind directions and speeds. Furthermore, the flat-plate airbag 112 provides a larger installation space for the power generation module 12, facilitating its deployment. Additionally, the flat-plate airbag 112 has a smaller frontal area during use, enabling it to maintain a relatively stable suspension state under varying wind directions and speeds.

[0026] The power generation component 12, by providing fans (i.e., the first fan 121 and the second fan 122) on both the upper and lower sides of the flat airbag 112, can make full use of the airflow at different speeds on the upper and lower surfaces of the flat airbag 112 to generate electricity, which helps to improve the wind energy capture efficiency and thus increase the power generation.

[0027] The tether cable 131 and winch 132 are used together. The tether cable 131 can secure the buoyancy component 11. The winch 132 and its traction rope 133 can adjust the buoyancy attitude of the buoyancy component 11. For example, when it is necessary to adjust the buoyancy height of the buoyancy component 11, the winch 132 can control the raising and lowering of the traction rope 133 to pull the buoyancy component 11 closer or release it, causing the buoyancy component 11 to rise or fall to a predetermined height for continuous wind energy capture. For example, in strong wind or thunderstorm conditions, the winch 132 can be used to lower the height of the buoyancy component 11 or achieve recovery, reducing the risk of damage to the device.

[0028] In summary, the high-altitude levitation power generation device provided by the present invention can achieve the goal of stable levitation and efficient power generation at high altitudes through the coordinated work of the levitation component 11, the power generation component 12 and the attitude control component 13. It has the advantages of high power generation efficiency, good stability and strong adaptability, and provides an innovative solution to the problem of energy shortage.

[0029] In some embodiments, the power generation component 12 further includes a photovoltaic panel, which can be disposed on the surface of the flat airbag 112 to improve the overall power generation efficiency.

[0030] like Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, in some embodiments, the power generation component 12 includes a connecting mechanism 123, and the flat airbag 112 has a through channel 113 that extends along the vertical direction of the airbag. The connecting mechanism 123 is located in the through channel 113, and the two ends of the connecting mechanism 123 are connected to the first fan 121 and the second fan 122 respectively, so that the relative positions of the first fan 121 and the second fan 122 are more fixed, which is beneficial to the aerodynamic intervention layout.

[0031] Specifically, the connecting mechanism 123 can fix the first fan 121 and the second fan 122, which not only ensures the connection is firm, but also facilitates the disassembly of the fans (first fan 121 and second fan 122) when needed; on the other hand, it can facilitate the laying of electrical lines and signal transmission lines, facilitate the recovery of electrical energy generated by the fans, and detect and feed back the operating status of the fans to the ground.

[0032] In some embodiments, such as Figure 4 and Figure 5 As shown, the connecting mechanism 123 includes a telescopic rod 124. The length of the telescopic rod 124 in the vertical direction of the flat airbag 112 is adjustable. One end of the telescopic rod 124 is connected to the buoyancy assembly 11, and the other end of the telescopic rod 124 is connected to the first fan 121 or the second fan 122 to adjust the height of the first fan 121 or the second fan 122 so that it is located in a more advantageous airflow layer, which helps to capture more wind energy.

[0033] Specifically, the telescopic rod 124 may include multiple sleeves 1241, with a transmission mechanism between adjacent sleeves 1241, allowing for a wide range and precise adjustment of the telescopic rod 124's length in the vertical direction of the airbag. For example, the transmission mechanism may be a ball screw or a gear 1243 or rack 1242. For ease of description, in this embodiment, the telescopic rod 124 is connected to the first fan 121. For example, the telescopic rod 124 can be connected to the first fan 121 via a flange; the flange connection has high connection strength and can withstand the large torque and vibration generated during fan operation. Of course, in some embodiments, the telescopic rod 124 may also be connected to a second fan 122, which will not be elaborated here.

[0034] Furthermore, multiple winches 132 are provided, and the traction rope 133 of one of the winches 132 is connected to the telescopic rod 124. The winch 132 adjusts the extension and retraction length of the telescopic rod 124 through the traction rope 133. That is, the telescopic rod 124 has a fixed end and a movable end. The fixed end can be connected to the floating component 11, and the movable end can be connected to the first fan 121 and the traction rope 133 on the winch 132. By extending and retracting the traction rope 133, the winch 132 can adjust the length of the telescopic rod 124, thereby adjusting the height of the first fan 121.

[0035] In addition, in some embodiments, the connecting mechanism 123 further includes a fixing rod, the two ends of which are connected to the floating assembly 11 and the fan (first fan 121 or second fan 122).

[0036] like Figure 4 and Figure 5 As shown, in some embodiments, the connecting mechanism 123 further includes a fixed disk 125, a rotating disk 126, and a driver 127. The fixed disk 125 is located at the end of the telescopic rod 124, the rotating disk 126 is rotatably connected to the fixed disk 125, the first fan 121 is located on the rotating disk 126, and the output end of the driver 127 is rotatably connected to the rotating disk 126. The driver 127 is used to drive the rotating disk 126 to rotate relative to the fixed disk 125, so that the first fan 121 folds or opens relative to the flat airbag 112.

[0037] Specifically, the rotating disk 126 can be rotatably connected to the fixed disk 125. The first fan 121 is mounted on the rotating disk 126, and the driver 127 can drive the rotating disk 126 to rotate. For example, when the entire device is not in operation or when it is too high for the fan to operate, the driver 127 can drive the rotating disk 126 to rotate, causing the first fan 121 to gradually fold closer to the flat airbag 112, thereby storing the first fan 121 and reducing wind resistance. When the device reaches the predetermined position and is ready to generate electricity, the driver 127 will work again, driving the rotating disk 126 to rotate in the opposite direction, causing the first fan 121 to open to the working angle, so that it can fully capture wind energy. The working angle can be set to 90 degrees, that is, the first fan 121 is in the vertical direction of the flat airbag 112.

[0038] Furthermore, a mechanical brake 128 is provided between the rotating disk 126 and the fixed disk 125. The mechanical brake 128 is used to limit the rotation of the rotating disk 126 relative to the fixed disk 125. Specifically, when the first fan 121 rotates to the working angle, the mechanical brake 128 can limit the rotation of the rotating disk 126 to prevent the first fan 121 from affecting normal operation due to excessive swinging or loss of control.

[0039] Furthermore, the mechanical brake 128 can be configured as an externally mounted brake 128, which may include a brake block 1281 and a brake actuator 1282. The brake actuator 1282 may be mounted on the fixed disk 125, and the brake block 1281 may be located at the output end of the brake actuator 1282. When the mechanical brake 128 is working, the brake actuator 1282 can drive the brake block 1281 to abut against the rotating disk 126, thereby generating frictional resistance between the rotating disk 126 and the brake block 1281, achieving a braking effect. Of course, in other embodiments of this application, the mechanical brake 128 may also be configured as an internally expanding shoe brake 128, a band brake 128, etc., as long as the braking effect on the rotating disk 126 can be achieved.

[0040] like Figure 2 As shown, in some embodiments, both the first fan 121 and the second fan 122 include a support frame 1211, a hub 1212, and multiple blades 1213. The support frame 1211 is mounted on the floating assembly 11, the hub 1212 is rotatably mounted on the support frame 1211, and the multiple blades 1213 are arranged at equal angles on the outer periphery of the hub 1212. The support frame 1211 is the foundation of the entire fan and can be fixed to the floating assembly 11 by bolts or welding. The hub 1212 is the component connecting the support frame 1211 and the blades 1213, and is rotatably mounted on the support frame 1211. For example, the hub 1212 can be rotatably connected to the support frame 1211 via bearings. The blades 1213 can be arranged at equal angles on the outer periphery of the hub 1212, and the number of blades 1213 can be set to 3, 4, etc., which can be determined according to the power requirements and design requirements of the fan.

[0041] Furthermore, the support frame 1211 can be configured as a truss structure or a single-arm cantilever structure. The truss structure can employ a triangular unit design, which avoids localized stress concentration and thus reduces the likelihood of deformation or damage under heavy loads. The single-arm cantilever structure features a simple design and efficient force transmission method, directly transferring the force generated by the wind turbine to the floating assembly 11, reducing energy loss in intermediate stages. Moreover, the single-arm cantilever structure offers greater flexibility in spatial layout, accommodating floating assemblies 11 of different sizes, providing greater convenience for wind turbine installation and use.

[0042] The hub 1212 is made of either aluminum alloy or carbon composite material. Aluminum alloy has advantages such as low density, high strength, and good corrosion resistance, which can effectively reduce the weight of the hub 1212, lowering the wind turbine's starting speed and operating energy consumption. Carbon composite material has good fatigue resistance and corrosion resistance, enabling long-term stable operation under harsh environmental conditions and extending the service life of the hub 1212.

[0043] The blade 1213 is made of either carbon fiber or glass fiber composite material. The material of a wind turbine affects its performance and efficiency; carbon fiber composite material possesses excellent properties such as high strength, high modulus, and low density, enabling the blade 1213 to withstand strong winds without easily deforming, ensuring stable operation of the wind turbine. Simultaneously, its low density significantly reduces the weight of the blade 1213, lowering the wind turbine's moment of inertia and improving its start-up and response speed. While glass fiber composite material has slightly lower strength and modulus than carbon fiber composite material, it offers advantages such as low cost and good processing performance. It can meet the general requirements of wind turbines, reducing manufacturing costs while ensuring the performance of the blade 1213, resulting in a high cost-performance ratio.

[0044] In this embodiment, the first fan 121 is located above the flat-plate airbag 112, and the second fan 122 is located below the flat-plate airbag 112. The combination of the first fan 121 and the second fan 122 can form a "vertical balanced moment structure". The first fan 121 can increase the pulling force at high altitudes, and the second fan 122 can act as a stabilizing pressure rudder for the flat-plate airbag 112, making the overall spatial attitude more stable. The first fan 121 can be located in the high-altitude airflow zone, and the second fan 122 can be located in the lower natural wind zone, thereby expanding the working wind speed range from 6 to 18 m / s to 4 to 25 m / s. Furthermore, the height difference can be used to achieve a gradient utilization of laminar to turbulent flow, improving the wind energy capture efficiency.

[0045] like Figure 6 As shown, in some embodiments, the flat airbag 112 includes a frame 1121, an anti-permeability layer 1122, and a protective layer 1123 arranged sequentially. The frame 1121 is a carbon fiber truss or an aluminum alloy truss. The anti-permeability layer 1122 is a multi-layered barrier membrane. The protective layer 1123 is an ETFE (ethylene-tetrafluoroethylene copolymer) / polyester film composite UV coating.

[0046] Specifically, the skeleton 1121 is the supporting structure of the flat-plate airbag 112, which can maintain the shape of the airbag and withstand external loads. The impermeable layer 1122 can prevent gas leakage and ensure the stability of the internal air pressure of the airbag; the multi-layer barrier membrane can be made of different materials. For example, some barrier membranes have extremely low air permeability, which can prevent gas molecules from passing through; some barrier membranes have good flexibility and adhesion, which can be tightly combined with other layers to form a seamless impermeable barrier; and the multi-layer stacked design also increases the length of the gas permeation path, further improving the impermeability. The protective layer 1123 is directly exposed to the external environment and is subject to the erosion of various physical and chemical factors, such as ultraviolet radiation, wind and rain erosion, and mechanical friction.

[0047] Furthermore, the flat-plate airbag 112 has multiple cavities 1124, realizing a compartmentalized design to improve structural stability; and the flat-plate airbag 112 can form a stable boundary layer and lifting platform at high altitudes, ensuring that it can maintain attitude stability under different wind directions and wind speeds, avoiding large swings and pitch angle changes.

[0048] Furthermore, the flat-plate airbag 112 can be filled with one of helium, helium-neon, or a low concentration of hydrogen. like Figure 6 As shown, in some embodiments, the flat-plate airbag 112 further includes a body and at least two guide vanes 1125, which are symmetrically arranged on opposite sides of the airbag. In the complex airflow environment at high altitudes, the airflow will generate forces of different directions and magnitudes on the buoyancy component 11. The symmetrically arranged guide vanes 1125 can ensure that the forces acting on the buoyancy component 11 under the action of airflow from various directions reach a relatively balanced state, thereby effectively reducing swaying and displacement caused by uneven airflow and greatly improving the stability of the buoyancy component 11.

[0049] The airfoil section of the guide 1125 is either symmetrical or curved. A symmetrical airfoil section means that the upper and lower surfaces of the guide 1125 are completely symmetrical. When airflow passes over it, the airflow velocity and pressure distribution on the upper and lower surfaces exhibit a symmetrical relationship. This allows the symmetrical airfoil to generate relatively stable lift characteristics at both positive and negative angles of attack, and the lift is almost zero at zero angle of attack, with relatively low drag. For the aerostat assembly 11, the symmetrical airfoil section of the guide 1125 can provide a more balanced stress performance in complex and variable airflow environments, reducing sudden changes in the stress on the guide 1125116 caused by sudden changes in airflow direction, thereby enhancing the overall stability of the aerostat assembly 11, such as the NACA00 series.

[0050] The curved airfoil section refers to the design of the upper surface of the airfoil 1125 as a relatively convex curved shape, while the lower surface is relatively flat. When airflow passes over the curved airfoil, due to the longer airflow path on the upper surface, according to Bernoulli's principle, the airflow velocity will increase and the pressure will decrease; while the airflow velocity on the lower surface is relatively slower and the pressure is higher. This pressure difference generates upward lift, allowing the curved airfoil to produce greater lift than a symmetrical airfoil under the same airflow conditions.

[0051] Furthermore, the flat-plate airbag 112 also has a vibration damping device, which can accelerate the levitation component 11 from swinging when swaying occurs, thereby improving the stability of the entire device.

[0052] In this embodiment, the flat-plate airbag 112 is provided with a pressure relief valve 117, which is used to adjust the gas pressure inside the flat-plate airbag 112 to provide sufficient lift.

[0053] In some embodiments, the first fan 121 and the second fan 122 can be configured as horizontal axis fans or vertical axis fans, meaning that the corresponding fan type can be selected according to different operating conditions to achieve a preset energy capture efficiency. The number of the first fan 121 and the second fan 122 can be set as needed, from single-unit arrangement to multi-unit array, thereby enabling the construction of high-altitude power generation platforms of different power levels, for example... Figure 7 The image shows a vertically mounted, suspended high-altitude power generation device.

[0054] During operation, a velocity loss zone (wake zone) and a turbulence zone are generated behind the wind turbine. Multiple first wind turbines 121 or second wind turbines 122 can be spaced and staggered to prevent the wake of the upstream turbine from directly impacting the downstream turbine, thereby reducing power loss in the downstream turbine and improving the overall structural stability. For example, multiple wind turbines (first wind turbine 121 and second wind turbine 122) can be staggered (oblique) or arranged in a ring to allow airflow to bypass the wake core, keeping more turbines in a higher effective wind speed zone and improving overall energy harvesting efficiency.

[0055] Of course, in some embodiments, the multiple fans (first fan 121 and second fan 122) can also be distributed in a symmetrical array, which can geometrically cancel out the lateral forces and torques generated by each fan, resulting in a significant reduction in the combined lateral moment, pitch moment and yaw moment applied to the floating platform, which is beneficial for attitude adjustment.

[0056] In this embodiment, the diameter of the blades 1213 in the first wind turbine 121 and the second wind turbine 122 can be set to D. If the first wind turbine 121 and the second wind turbine 122 are horizontal axis wind turbines, the distance between two adjacent horizontal axis wind turbines should be greater than or equal to 3D; if the first wind turbine 121 and the second wind turbine 122 are vertical axis wind turbines, the distance between two adjacent vertical axis wind turbines should be greater than or equal to 2D. This effectively reduces the mutual interference of the wake effect, allowing each wind turbine to work in a relatively independent wind field environment, fully capturing high-altitude wind energy, and improving the energy conversion efficiency of the entire power generation system.

[0057] Furthermore, it should be noted that each of the first wind turbine 121 and the second wind turbine 122 is equipped with a generator and a rectifier / inverter and maximum power point tracking (MPPT) device to rectify and boost the AC output to DC. The flat-plate airbag 112 is also equipped with an onboard combiner box, which can combine the DC generated by each wind turbine and output it to the conductive bundle in the mooring cable 131 through a high-frequency converter or booster device.

[0058] like Figure 2As shown, in some embodiments, the attitude control component 13 further includes a local controller 129, an airborne controller 114, and a ground controller 134, forming a complete control chain of "local closed loop + platform coordination + global strategy". The local controller 129 is located on the wind turbines (first wind turbine 121 and second wind turbine 122) and can control each turbine individually to maintain safe operation. The airborne controller 114 can be located on the flat-panel airbag 112 and can comprehensively consider the suspension attitude, the tension of the traction rope 133, and the wind field conditions to adjust the array of all wind turbines, ensuring stable operation and optimal power for the entire device. The ground controller 134 can perform strategy scheduling, such as mode switching, power planning, and extreme weather decisions.

[0059] Specifically, the local controller 129 is located at the first fan 121 and the second fan 122, and has advantages such as high speed and short closed-loop, which helps to ensure stable operation of each unit. The main controller can collect signals in real time, such as speed, generator torque, vibration, temperature, local wind speed, IMU attitude, etc. The local controller 129 includes a PID processing unit, which can keep the fan operating near the target speed or the optimal tip speed ratio; automatically increase the blade pitch to "reduce load" when overspeed or overtemperature occurs; and automatically adjust the torque to suppress vibration when wind vibration increases. In addition, the local controller 129 also has protection functions, such as overspeed protection, over-temperature derating, vibration suppression, and emergency braking.

[0060] The airborne controller 114 can manage the position and aerodynamic balance of the entire device by collecting signals from sensors such as IMU, GPS, tether tension, and airbag pressure. For example, when disturbances occur due to gusts or crosswinds, it can control the winch 132 to fine-tune the length of the traction rope 133 to offset the deviation; adjust the wind turbine's angle of attack to point it towards the prevailing wind direction; and activate the start-up damping device to suppress swaying. The airborne controller 114 can also compare the operating status of the first wind turbine 121 and the second wind turbine 122 to determine whether there is a wake in the wind field; if a wake exists, it can reduce the tip speed ratio of the upstream wind turbine to diffuse the wake; and adjust the pitch of the downstream wind turbine to improve the efficiency of wind energy harvesting. In addition, the airborne controller 114 can also inflate and deflate the various compartments of the flat-plate airbag 112 to keep the whole device horizontally stable.

[0061] The ground controller 134 can monitor the status and power of all wind turbines in real time; platform attitude and position; high-altitude wind resources; cable tension trends; airbag lifespan and health status, and other parameters. For example, the ground controller 134 can coordinate the adjustment of all wind turbines based on predicted wind resources, especially the load adjustment between multiple wind turbines, to prevent any one wind turbine from operating under high load.

[0062] In some embodiments, the tether cable 131 is made of a high-strength fiber composite material, and the tether cable 131 contains conductive wire bundles. The high-strength fiber composite material may include materials such as carbon fiber and aramid fiber. Carbon fiber has extremely high specific strength and specific modulus. The tether cable 131 made of carbon fiber composite material is lighter in weight, which can effectively reduce the load on the entire power generation device, significantly reduce the weight of the floating platform, and improve the ceiling and platform stability.

[0063] Furthermore, the conductive wire harness is generally composed of multiple strands of highly conductive metal wires (such as copper wire, aluminum wire, etc.). This stranded structure not only improves the flexibility and tensile strength of the conductive wire harness but also effectively reduces resistance during current transmission, thus lowering energy loss. The conductive wire harness allows the tethering cable 131 to perform both tethering and power transmission functions. In high-altitude suspended power generation devices, the electrical energy generated by the power generation module can be efficiently transmitted to ground equipment via the conductive wire harness.

[0064] Furthermore, the outer surface of the tethering cable 131 is covered with an abrasion-resistant layer, which can improve abrasion resistance.

[0065] Furthermore, the tethering cable 131 is equipped with a fault isolation circuit breaker to quickly cut off the fault current, isolate the faulty part from the normal part, and ensure equipment safety.

[0066] Furthermore, in this embodiment, the mooring rope 131 includes a main rope and multiple auxiliary tension ropes, both of which have layered protection and breakage indication.

[0067] like Figure 2 and Figure 3 As shown, in some embodiments, the aerodynamic component 11 also includes a parachute 115, which has a mechanical maximum descent speed trigger. That is, when the aerodynamic component 11 encounters strong airflow during ascent and loses lift, beginning to fall, the mechanical maximum descent speed trigger constantly monitors the descent speed of the aerodynamic component 11. As the descent speed increases, when it reaches a pre-set maximum safe descent speed threshold, the mechanical structure within the trigger is activated instantaneously, triggering the deployment device of the parachute 115. The parachute 115 rapidly deploys from its retracted state in a very short time, forming a large canopy, thereby generating strong air resistance. This resistance effectively counteracts the gravity of the falling aerodynamic component 11, rapidly reducing its descent speed. Ultimately, the aerodynamic component 11, cushioned by the parachute 115, lands safely and smoothly on the ground, avoiding equipment damage and potential hazards to the surrounding environment and personnel caused by high-speed descent.

[0068] Optionally, the parachute 115 includes a pull-cord automatic ejection pack or a CO2 ejection folding pack.

[0069] like Figure 2 As shown, in some embodiments, the floating assembly 11 further includes a lightning rod 116, the top of which is provided with a spherical or conical collecting end. The tethering cable 131 includes a grounding cable, one end of which is connected to the lightning rod 116 and the other end of which is connected to a grounding device on the ground, thereby conducting lightning energy to the ground.

[0070] Among them, the spherical collector end has a larger surface area, which can more effectively attract lightning leaders in thunderstorm weather and increase the probability of lightning hitting the lightning rod 116; the conical collector end, with its sharp shape, can generate a stronger electric field concentration effect in the electric field, which also helps to guide lightning to hit the lightning rod 116, thereby guiding the lightning energy to the lightning rod 116.

[0071] Furthermore, the lightning arrester 116 is made of either carbon fiber conductive composite material or aluminum-magnesium alloy. Carbon fiber conductive composite material reduces the weight of the lightning arrester 116, thereby reducing the overall load on the aerostat assembly 11 and improving its lifting efficiency. Aluminum-magnesium alloy is corrosion-resistant, ensuring that the lightning arrester 116 will not experience performance degradation due to corrosion during long-term use, thus extending its service life.

[0072] Based on the same inventive concept, the present invention also provides a power generation system, which includes the vertically oriented high-altitude suspended power generation device provided in any of the foregoing embodiments. In this embodiment, multiple vertically oriented high-altitude suspended power generation devices may be provided, and the multiple vertically oriented high-altitude suspended power generation devices are arranged in an array to effectively utilize wind energy in the target airspace and improve power generation efficiency.

[0073] It should be noted that the upper and lower group high-altitude suspended power generation device provided in this application embodiment is applicable to the power generation system. Therefore, the implementation principle and technical effects not mentioned in the power generation system embodiment can be referred to the corresponding content in the aforementioned upper and lower group high-altitude suspended power generation device embodiment.

[0074] In the description of this invention, it should be understood that the terms "center," "length," "width," "thickness," "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0075] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0076] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0077] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0078] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0079] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A vertically integrated high-altitude suspended power generation device, characterized in that, The system includes a levitation component, a power generation component, and an attitude control component. The levitation component has a flat-plate airbag. The power generation component includes a first fan and a second fan, which are respectively located on opposite sides of the flat-plate airbag in the vertical direction. The attitude control component includes a tether cable and a winch. One end of the tether cable is connected to the levitation component, and the other end is connected to a ground fixing device. A traction rope is wound around the winch and is connected to the levitation component. The winch is used to adjust the length of the traction rope to adjust the levitation attitude of the levitation component.

2. The upper and lower group type high-altitude suspended power generation device according to claim 1, characterized in that, The power generation component also includes a connecting mechanism. The flat airbag has a through channel that extends along the vertical direction of the airbag. The connecting mechanism is located within the through channel, and its two ends are connected to the first fan and the second fan respectively.

3. The upper and lower group type high-altitude suspended power generation device according to claim 2, characterized in that, The connecting mechanism includes a telescopic rod, the length of which is adjustable in the vertical direction of the flat airbag. One end of the telescopic rod is connected to the levitation component, and the other end is connected to the first fan or the second fan to adjust the height of the first fan or the second fan.

4. The upper and lower group type high-altitude suspended power generation device according to claim 3, characterized in that, The winch is provided with multiple winches, and the traction rope of one of the multiple winches is connected to the telescopic rod. The winch adjusts the extension and retraction length of the telescopic rod through the traction rope.

5. The upper and lower group type high-altitude suspended power generation device according to claim 3, characterized in that, The connecting mechanism further includes a fixed plate, a rotating plate, and a driver. The fixed plate is located at the end of the telescopic rod, the rotating plate is rotatably connected to the fixed plate, the first fan is located on the rotating plate, and the output end of the driver is rotatably connected to the rotating plate. The driver is used to drive the rotating plate to rotate relative to the fixed plate, so that the first fan folds or opens relative to the flat airbag.

6. The upper and lower group type high-altitude suspended power generation device according to claim 5, characterized in that, A mechanical brake is provided between the rotating disk and the fixed disk, and the mechanical brake is used to restrict the rotation of the rotating disk relative to the fixed disk.

7. The upper and lower group type high-altitude suspended power generation device according to claim 1, characterized in that, Both the first fan and the second fan include a support frame, a hub, and multiple blades. The support frame is mounted on the floating assembly, the hub is rotatably mounted on the support frame, and the multiple blades are arranged at equal angles on the outer periphery of the hub.

8. The upper and lower group type high-altitude suspended power generation device according to claim 7, characterized in that, The support frame is configured as a truss structure or a single-arm cantilever structure; the hub is made of aluminum alloy or carbon composite material; the blade is made of carbon fiber or glass fiber composite material.

9. The upper and lower group type high-altitude suspended power generation device according to claim 1, characterized in that, The flat-plate airbag includes a frame, an anti-permeability layer, and a protective layer arranged in sequence. The frame is a carbon fiber truss or an aluminum alloy truss. The anti-permeability layer is a multi-layered barrier membrane. The protective layer is an ETFE / polyester film composite UV coating.

10. A power generation system, characterized in that, The above-mentioned vertically mounted high-altitude suspended power generation device includes any one of claims 1 to 9.

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