Flying type multipurpose high-altitude wind power generation system and application

Abstract

The invention discloses a flight type multipurpose high-altitude wind power generation system and application, the system comprises a stratosphere aerostat system, a hanging cable and a wind energy capturing and wireless energy transmission system, and the stratosphere aerostat system, the hanging cable and the wind energy capturing and wireless energy transmission system are sequentially connected from top to bottom. According to the invention, the stratosphere aerostat system is utilized to bring the wind energy capture and wireless energy transmission system to a torrent area to capture wind energy with high stability and convert the wind energy into electric energy, and meanwhile, ground energy transmission and a multi-task load military and civilian application scene are realized, so that a multi-purpose high-altitude wind power generation system capable of residing in the area for a long time or maneuvering transfer is formed.

Description

Technical Field

[0001] The present invention relates to the technical field of aerial wind power generation, and more particularly to a flying multi-purpose high-altitude wind power generation system and its application. Background Art

[0002] Wind energy is a renewable, clean natural resource. The wind energy stored in the sky is more than 100 times the total energy demand of human society. The wind direction is stable in the altitude range of 1km to 15km, and the higher the altitude, the greater the wind energy density (for every 1m increase in altitude, the wind energy density increases by 0.25 to 0.37W / m 2 ), the better the stability, especially in the high-altitude jet stream area of ​​8km to 12km, the wind speed reaches 30m / s to 50m / s throughout the year (for every doubling of wind speed, the wind energy density increases by 7 times), and the duration, stability and quality of wind power generation are better. High-altitude wind energy is a clean energy with good development prospects.

[0003] At present, there are three main technical approaches to the development and utilization of high-altitude wind energy: tethered kite technology system (including paragliders, parachute ladder combination), tethered aircraft technology system (including airborne power generation, ground power generation) and tethered aerostat technology system (including power generation load pod, power generation load and capsule integration). However, from the perspective of product development to test verification, most of them are operated below 1km altitude (wind energy density 500W / m 2 Below 3km altitude actually belongs to the low-altitude category), can only use unstable low-altitude wind energy resources, the available power generation time throughout the year is short (about 2200h), and because they all use tethering, 1) it restricts the operating range of high-altitude wind power generation systems, and cannot flexibly transfer and maneuver, and the use is limited; 2) with the increase of the operating altitude of the wind power generation system, the dead weight of the tethering rope and the generator set reaches several tons, resulting in a large scale of the flight vehicle platform, and extremely high requirements for supporting technologies such as materials, structure, aerodynamics, control, process, testing, and guarantee, making it difficult to truly apply it to high-altitude wind energy capture; 3) The high-altitude environment is complex (especially the high-altitude jet stream area of ​​8km to 12km, a treasure trove of wind energy resources), including alternating temperatures during the day and night, long-term strong winds and short-term gusts or shear winds, rain / snow / icing / lightning, short-term cold clouds / cold currents, seasonal bird migration safety ecological environment, civil aviation route safety transportation environment, etc., which poses great challenges to the vehicle platform technology of tethered high-altitude wind power generation.

[0004] In the middle and low latitudes, in the stratosphere at an altitude of 16km to 22km, the atmosphere is dominated by horizontal movement (stable wind direction, mainly east-west wind), moderate density, and relatively stable environment. There is no complex weather such as rainfall / lightning. There is a transition zone (weak wind layer) with low wind speed all year round, and the wind direction of the atmosphere is opposite in the upper and lower spaces of the weak wind layer, with unique environmental characteristics. Therefore, the capture of high-altitude wind energy (especially in the jet stream area) by hanging large wind turbines (operating in the lower part of the weak wind layer) through cables of stratospheric airships (operating in the upper part of the weak wind layer), the wireless transmission of high-altitude electrical energy to the ground through microwave or laser energy conversion and transmission devices, and then the acquisition of electrical energy by ground microwave or laser energy conversion and receiving devices has broad prospects for solving the shortcomings of existing tethered high-altitude wind power generation technology.

[0005] However, in the prior art, such as the patent application number 202211415344.X, the patent name is a method for high-altitude wind power generation residing in the stratospheric region. Its core describes a dual aerostat system formed by a high-altitude balloon (operating in the upper part of the zero wind layer) hanging a flying platform (operating in the lower part of the zero wind layer). The wind wheel blades configured on the flying platform rotate to generate electricity and transmit it to its own energy warehouse for storage. The energy warehouse then supplies power to drive the blades to reverse and generate thrust. Combined with the environment of reverse wind directions above and below the zero wind layer, the dual aerostat system is implemented to reside in the east-west and north-south controlled areas. The following problems exist: 1) The flight platform below is only suspended through a local flange connection at the bottom of the high-altitude balloon, which can easily cause stress concentration and rupture of the high-altitude balloon airbag material; 2) The high-altitude balloon is huge in size, and the wind rotation effect will be transmitted to the flight platform below, exerting a large rotational torque and torsion of the suspension cable (prone to fatigue damage) on the flight platform, greatly reducing the effect of regional residence (or even failure); 3) The flight platform (aerostat) below operates in a complex high-altitude environment, including alternating temperature between day and night, long-term strong winds and short-term gusts or shear winds, rain / snow / ice / lightning, short-term cold clouds / cold currents, seasonal bird migration safety ecological environment, civil aviation route safety transportation environment, etc., making it difficult to work reliably; 4) The required guarantee conditions for final assembly and integration (such as factory buildings, especially to meet the needs of the flight platform) are high, making it difficult to release and unable to safely descend and recover.

[0006] Therefore, providing a flying multi-purpose high-altitude wind power generation system and its application is an urgent problem to be solved by those skilled in the art. Summary of the invention

[0007] In view of this, the present invention provides a flying multi-purpose high-altitude wind power generation system and application to at least solve one of the technical problems mentioned in the above background technology.

[0008] In order to achieve the above object, the present invention adopts the following technical solution:

[0009] A flying multi-purpose high-altitude wind power generation system comprises a stratospheric aerostat system, a hanging cable and a wind energy capture and wireless energy transmission system, wherein the stratospheric aerostat system, the hanging cable and the wind energy capture and wireless energy transmission system are connected in sequence from top to bottom.

[0010] By adopting the above technical solution, the present invention produces the following beneficial effects:

[0011] The stratospheric aerostat system is used to bring the wind energy capture and wireless energy transmission system to the jet stream area to capture wind energy with high stability and convert it into electrical energy. At the same time, ground energy transmission and multi-mission payload military and civilian application scenarios are realized, forming a multi-purpose high-altitude wind power generation system that can be stationed in the region for a long time or transferred flexibly.

[0012] Furthermore, the stratospheric aerostat system includes an aerostat, a load-bearing flange, a dual-redundancy active control valve, a top equipment compartment, a turntable bearing, a plurality of flexible load-bearing belts and a plurality of upper connecting cables, the interior of the aerostat is filled with light gas; the load-bearing flange is fixed at the top center of the aerostat; the dual-redundancy active control valve and the top equipment compartment are both mounted on the load-bearing flange, and the dual-redundancy active control valve is connected to the interior of the aerostat; the turntable bearing is located below the aerostat; the load-bearing flange is connected to the outer ring of the turntable bearing through a plurality of the flexible load-bearing belts, and the plurality of the flexible load-bearing belts are evenly distributed along the circumference of the aerostat; the inner ring of the turntable bearing is connected to the top end of the suspension cable through a plurality of evenly distributed upper connecting cables.

[0013] Furthermore, the stratospheric aerostat system also includes a blower and an auxiliary airbag, wherein the blower is installed at the bottom of the aerostat; the auxiliary airbag is located inside the aerostat and is connected to the blower.

[0014] Furthermore, the stratospheric aerostat system further comprises a plurality of reinforcing belts, which are all arranged around the plurality of flexible load-bearing belts and the aerostat and are located in the middle and upper part of the aerostat.

[0015] Furthermore, the stratospheric aerostat system also includes a micro-circulation energy system, and a clustering ring is provided at the connection between the multiple upper connecting cables and the hanging cables to form an inverted cone-shaped load-bearing installation space inside the multiple upper connecting cables; the micro-circulation energy system is installed in the load-bearing installation space.

[0016] Furthermore, it also includes a parachute, a remote-controlled cutting device and a wind measuring device, the hanging cables include an upper hanging cable and a lower hanging cable; the stratospheric aerostat system, the upper hanging cable, the parachute, the lower hanging cable and the wind energy capture and wireless energy transmission system are connected in sequence from top to bottom; the remote-controlled cutting device is installed on the upper hanging cable; the wind measuring device is installed on the lower hanging cable.

[0017] Furthermore, the wind energy capture and wireless energy transmission system includes a longitudinal load-bearing and mounting truss, a transverse load-bearing and mounting truss, a vertical load-bearing and mounting truss, four lower connecting cables, a wind turbine, a tail wing, a wireless energy transmission equipment cabin and a multi-functional mission payload cabin. The longitudinal load-bearing and mounting truss, the transverse load-bearing and mounting truss and the vertical load-bearing and mounting truss are assembled and connected together, and the bottom ends of the four lower connecting cables are respectively connected to the two ends of the longitudinal load-bearing and mounting truss and the two ends of the transverse load-bearing and mounting truss, and the top ends of the four lower connecting cables are all connected to the hanging cables; the wind turbine and the tail wing are respectively installed at the two ends of the longitudinal load-bearing and mounting truss; the wireless energy transmission equipment cabin and the multi-functional mission payload cabin are both installed inside the longitudinal load-bearing and mounting truss.

[0018] Furthermore, the wind energy capture and wireless energy transmission system also includes multiple pneumatic sails and multiple winches, and the multiple pneumatic sails are respectively installed in multiple triangular areas formed between the lateral load-bearing and mounting trusses and the vertical load-bearing and mounting trusses; the multiple winches are all installed in the vertical load-bearing and mounting trusses and are respectively connected to the multiple pneumatic sails.

[0019] Furthermore, the wind energy capture and wireless energy transmission system also includes lightning protection strips and electrostatic release brushes, and the lightning protection strips and electrostatic release brushes are provided on the wireless energy transmission equipment cabin and the multifunctional mission payload cabin.

[0020] An application of the flying multi-purpose high-altitude wind power generation system as described above is used in the fields of high-altitude wind power generation integrated into the power grid, smart city wireless power supply base stations, aircraft wireless function endurance, emergency assistance, aerial high-energy arsenal, early warning detection, reconnaissance and surveillance, communication relay, electronic countermeasures and high-resolution earth observation.

[0021] It can be seen that the present invention provides a flying multi-purpose high-altitude wind power generation system and application. Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1) The main and auxiliary airbags (aerostat and auxiliary airbags), buoyancy transfer radial net belt (multiple flexible load-bearing belts), suction and exhaust integrated blower and turntable bearing are combined. The main and auxiliary airbags can adjust the operating altitude of the stratospheric aerostat to ensure its day and night cycle of airborne superheat and overpressure safety; the radial net belt transfers buoyancy and will not cause stress concentration on the aerostat and affect the safety of its material structure; the turntable bearing can isolate the impact of the wind-induced self-rotation torque of the aerostat on the lower hanging part;

[0023] 2) The system operates at the stratosphere above the weak wind layer (where the environment is relatively stable and there is no complex weather such as rain / lightning), which is very friendly to the service life of the skin material. The wind energy capture and wireless energy transmission system operates at the height of the jet stream below the weak wind layer, which has a simple and stable structure and is not affected by complex environments. The environment inside the cabin can protect electrical equipment from the influence of complex environments such as rain / snow / icing / low temperature / low pressure, and the Faraday cage design can effectively prevent lightning.

[0024] 3) The combination of aerodynamic sails and aerodynamic tail wings can take advantage of the objective environmental characteristics of the opposite wind directions in the upper and lower parts of the weak wind layer, and use a smaller aerodynamic sail windward area to overcome the resistance of the stratospheric aerostat system (although the aerostat has a larger windward area, the resistance it is subject to is 1 / 125-1 / 1000 of the area of ​​the jet stream). By adjusting the extended area of ​​the aerodynamic sails, the overall resistance of the system can be basically zero (regional residence) or the direction of the force can be directed to the direction of the required maneuver (maneuver transfer); the tail wing can keep the wind turbine generating electricity autonomously against the wind;

[0025] 4) The parachute and remote control cutting device are combined to remotely control and separate the stratospheric aerostat after the mission is completed. The aerostat gradually releases the buoyancy gas through the dual-redundant active control valve, slowly and safely lands at the predetermined location and is recovered. The wind energy capture and wireless energy transmission system slowly and safely lands at the predetermined location and is recovered through the parachute (or parafoil) above it;

[0026] 5) During the ground assembly and integration stage, the stratospheric aerostat is still in an unformed state (the volume is about 1 / 7 of the full size) after being filled with buoyancy gas, and occupies a small space. The space occupied by components such as wind energy capture and wireless energy transmission systems after integration is also not large. As the payload of the stratospheric aerostat, the mature release and recovery process of high-altitude balloons can be used, and the ground support conditions are easy to implement. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0028] Figure 1 The accompanying drawing is a schematic diagram of the overall structure of a flying multi-purpose high-altitude wind power generation system provided by the present invention;

[0029] Figure 2 The attached picture is Figure 1 A schematic diagram of the enlarged structure of part A;

[0030] Figure 3 The accompanying drawing is a cross-sectional view of the stratospheric aerostat system provided by the present invention;

[0031] Figure 4 The accompanying drawing is a top view of the stratospheric aerostat system provided by the present invention;

[0032] Figure 5 The attached picture is Figure 1 Schematic diagram of the enlarged structure of part B. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] like Figure 1-5 As shown, the embodiment of the present invention discloses a flying multi-purpose high-altitude wind power generation system, including a stratospheric aerostat system 1, a hanging cable 2 and a wind energy capture and wireless energy transmission system 3. The stratospheric aerostat system 1, the hanging cable 2 and the wind energy capture and wireless energy transmission system 3 are connected in sequence from top to bottom, and the hanging cable 2 can be woven from high-strength and lightweight materials such as polymer polyethylene and Kevlar to achieve the function of buoyancy transmission. The present invention uses the stratospheric aerostat system 1 to bring the wind energy capture and wireless energy transmission system 3 to the rapids area to capture wind energy with high stability and convert it into electrical energy, while realizing ground energy transmission and multi-task payload military and civilian application scenarios, forming a multi-purpose high-altitude wind power generation system that can be stationed in the region for a long time or maneuvered transfer.

[0035] Specifically, the stratospheric aerostat system 1 includes an aerostat 11, a load-bearing flange 12, a dual-redundancy active control valve 13, a top equipment compartment 14, a turntable bearing 15, a plurality of flexible load-bearing belts 16 and a plurality of upper connecting cables 17. The aerostat 11 is formed by light high-strength composite materials. The interior of the aerostat 11 is filled with light gas, such as helium, hydrogen mixed with safety gas, etc., to provide static buoyancy, and operates at the stratospheric altitude (the upper part of the weak wind layer). In this embodiment, the interior is filled with helium, and the stratospheric aerostat 11 is filled with light gas, such as helium, hydrogen mixed with safety gas, etc., to provide static buoyancy. The aerostat system 1 operates at a stratospheric altitude of 16km-22km; the load-bearing flange 12 is fixed at the top center of the aerostat 11; the dual-redundancy active control valve 13 and the top equipment cabin 14 are both installed on the load-bearing flange 12, and the dual-redundancy active control valve 13 is connected to the inside of the aerostat 11, and the top equipment cabin 14 provides the required air pressure, temperature, installation and other environments for the reliable operation of its internal equipment, and the internal equipment at least includes a Beidou positioning communication terminal, a transponder, a barometric altimeter, a pressure gauge, and a pressure sensor. Differential meters, thermometers, etc., monitor the position, air pressure, altitude, pressure difference, temperature, micro-circulation energy system status and other information of the stratospheric aerostat system in real time online, and control the instructions of the actuators such as the dual-redundancy active control valve 13, the blower 18, and the remote control cutting device 5 at the same time, and conduct wireless interaction of information and instructions such as status monitoring and health management, flight planning and control with the ground operation and management center through the satellite communication telemetry and remote control link, which is not limited to the selection and quantity of equipment required for the realization of related functions; the turntable bearing 15 is located below the aerostat 11; the load-bearing flange 12 is connected to the outer ring of the turntable bearing 15 through a plurality of flexible load-bearing belts 16, and the plurality of flexible load-bearing belts 16 are evenly distributed along the circumference of the aerostat 11, and the buoyancy of the aerostat 11 is evenly transmitted; the inner ring of the turntable bearing 15 is connected to the top of the hanging cable 2 through a plurality of evenly distributed upper connecting cables 17, and the turntable bearing 15 can isolate the large torque generated by the rotation of the aerostat 11 and transmit it downward, which is not limited to the specific implementation methods such as the selection of the turntable bearing 15. The present invention can stay in the air for a long time and resist the overheating and overpressure safety of the aerostat caused by the alternating temperature between day and night, ultraviolet rays, and ozone. It is not limited to its working mode (such as overpressure mode, zero pressure mode, etc.), shape (perfect sphere, tear drop shape, pumpkin shape, etc.) and material selection (such as high-strength fiber filaments such as polymer polyethylene, Vectran or F12, etc.).

[0036] In order to further optimize the technical solution of the present invention, the stratospheric aerostat system 1 also includes a blower 18 and an auxiliary airbag 19. The blower 18 is installed at the bottom of the aerostat 11, and the blower 18 is an integrated air intake and exhaust blower; the auxiliary airbag 19 is located inside the aerostat 11 and is connected to the blower 18, so that the blower 18 can blow air into the auxiliary airbag 19 to increase the deadweight of the aerostat 11 (reduce the operating altitude), and exhaust air to reduce the deadweight of the aerostat 11 (increase the operating altitude), so as to match the fluctuation of the height of the weak wind layer at different latitudes and seasons in the stratosphere, and ensure that the aerostat 11 always runs in the upper part of the weak wind layer. The auxiliary airbag 19 of the present invention can isolate the air sucked and discharged by the height adjustment from the floating gas (such as helium, hydrogen mixed safety gas, etc.) inside the aerostat 11 that is lighter than air, and is not limited to its layout form, quantity and material selection.

[0037] In order to further optimize the technical solution of the present invention, the stratospheric aerostat system 1 also includes a plurality of reinforcing belts 110, which are all arranged around the plurality of flexible load-bearing belts 16 and the aerostat 11, and are located in the middle and upper part of the aerostat 11. On the one hand, they fix and constrain the plurality of flexible load-bearing belts 16, and on the other hand, they enhance the latitudinal load-bearing capacity of the aerostat 11.

[0038] In order to further optimize the technical solution of the present invention, the stratospheric aerostat system 1 also includes a micro-circulation energy system 111, and a clustering ring is provided at the connection between the multiple upper connecting cables 17 and the suspension cables 2 to form an inverted cone-shaped load-bearing installation space inside the multiple upper connecting cables 17; the micro-circulation energy system 111 is installed in the load-bearing installation space, and the micro-circulation energy system 111 includes a solar cell array, an energy storage battery pack, an energy management module (including energy cycle management function, information collection and control function, etc.), etc., which mainly provides uninterrupted energy supply for the electrical equipment of the stratospheric aerostat system 1.

[0039] In order to further optimize the technical solution of the present invention, it also includes a parachute 4, a remote-controlled cutting device 5 and a wind measuring device 6. The hanging cable 2 includes an upper hanging cable and a lower hanging cable; the stratospheric aerostat system 1, the upper hanging cable, the parachute 4, the lower hanging cable and the wind energy capture and wireless energy transmission system 3 are connected in sequence from top to bottom; the remote-controlled cutting device 5 is installed on the upper hanging cable; the wind measuring device 6 is installed on the lower hanging cable, the remote-controlled cutting device 5 receives the remote-controlled cutting command sent by the ground transportation and management center, and executes cutting and separation after the mission is completed. The parachute 4 automatically opens during the descent process, carrying the wind measuring device 6 and the wind energy capture and wireless energy transmission system 3 for lossless and safe landing and recovery.

[0040] Specifically, the wind energy capture and wireless energy transmission system 3 includes a longitudinal load-bearing and mounting truss 31, a transverse load-bearing and mounting truss 32, a vertical load-bearing and mounting truss 33, four lower connecting cables 34, a wind turbine 35, a tail wing 36, a wireless energy transmission equipment cabin 37 and a multifunctional mission payload cabin 38. The longitudinal load-bearing and mounting truss 31, the transverse load-bearing and mounting truss 32 and the vertical load-bearing and mounting truss 33 are assembled and connected together to form a cross-shaped + T-shaped spatial structure system. The longitudinal load-bearing and mounting truss 31, the transverse load-bearing and mounting truss 32 and the vertical load-bearing and mounting truss 33 are all made of lightweight and high-strength composite material components (such as carbon fiber pipes, aluminum alloy pipes, high-pressure flexible gas columns or mixed use, The bottom ends of the four lower connecting cables 34 are respectively connected to the two ends of the longitudinal load-bearing and mounting truss 31 and the two ends of the transverse load-bearing and mounting truss 32, and the top ends of the four lower connecting cables 34 are connected to the hanging cable 2, forming a complete force transmission path from the stratospheric airship in the upper part of the weak wind layer to the installation load-bearing structure platform in the jet stream area in the lower part of the weak wind layer; the wind turbine 35 and the tail wing 36 are respectively installed at the two ends of the longitudinal load-bearing and mounting truss 31. In this embodiment, the wind turbine 35 is brought to the jet stream area at an altitude of 6km-12km to stably capture wind energy and convert it into electrical energy. The number of blades of the wind turbine 35 can be two-blade propellers, three-blade propellers or multi-blade propellers, which are used to capture wind energy and convert it into electricity. In this embodiment, a three-blade propeller is selected, and the tail wing can be selected into a T-type, an inverted T-type, an X-type, a cross-type, a M-shaped, a Y-type or an inverted Y-type configuration. In this embodiment, an inverted T-type is selected, and a rudder surface can be optionally provided behind the tail 36. The tail 36 airfoil is made of lightweight and high-strength composite material components (such as carbon fiber pipes, aluminum alloy pipes, high-pressure flexible gas columns or mixed use to reduce cost and weight) spliced ​​into an airfoil truss structure (such as NACA high lift-to-drag ratio symmetrical low-speed series airfoils), covered with a flexible skin to provide aerodynamic restoring torque and heading autonomous windward control torque, so as to achieve the stability of the pitch and roll attitude of the installed load-bearing structure platform and the controlled deflection of the heading, which is not limited to the configuration of the tail wing; the wireless energy transmission equipment cabin 37 and the multi-function The energy mission payload cabin 38 is installed inside the longitudinal load-bearing and mounting truss 31, and its placement position must meet the static balancing of the pitch attitude of the entire mounting load-bearing structure platform. The wireless energy transmission equipment cabin 37 provides the required air pressure, temperature, installation and other environments for the reliable operation of its internal equipment, and can wirelessly transmit the electric energy converted by the wind turbine 35 to the ground or the energy-receiving target. The multifunctional mission payload cabin 38 provides the required air pressure, temperature, installation and other environments for the reliable operation of its internal equipment. The internal equipment includes at least combined inertial navigation, Beidou positioning communication terminal, Tiantong and broadband satellite communication terminal, emergency battery pack, transponder, camera, vibration measurement device, early warning detection / reconnaissance and surveillance / communication relay / ground observation and other multifunctional mission payloads.

[0041] In order to further optimize the technical solution of the present invention, the longitudinal load-bearing and mounting trusses 31, the transverse load-bearing and mounting trusses 32 and the vertical load-bearing and mounting trusses 33 are connected end to end through steel cables, high-strength cables or high-strength composite material components to enhance the load-bearing stiffness and structural stability of the entire structural system.

[0042] In order to further optimize the technical solution of the present invention, the wind energy capture and wireless energy transmission system 3 also includes a plurality of pneumatic sails 39 and a plurality of winches. The plurality of pneumatic sails 39 are respectively installed in a plurality of triangular areas formed between the transverse load-bearing and mounting trusses 32 and the vertical load-bearing and mounting trusses 33; the plurality of winches are all installed in the vertical load-bearing and mounting trusses 33 and are respectively connected to the plurality of pneumatic sails 39 to realize independent control of the extension and retraction of the canvas on both sides.

[0043] In order to further optimize the technical solution of the present invention, the wind energy capture and wireless energy transmission system 3 also includes a lightning rod and an electrostatic release brush 310. The wireless energy transmission equipment cabin 37 and the multi-functional mission payload cabin 38 are both provided with a lightning rod and an electrostatic release brush 310, which form a Faraday cage with the metal shell of the cabin (the cabin of the wireless energy transmission equipment cabin 37 and the multi-functional mission payload cabin 38), and can attract lightning and release it into the atmosphere, thereby protecting the equipment in the cabin from the influence of lightning.

[0044] The embodiment of the present invention also discloses an application of the above-mentioned flying multi-purpose high-altitude wind power generation system, which is applied to the fields of high-altitude wind power generation integrated into the power grid, smart city wireless power supply base station, aircraft wireless function endurance, emergency rescue, aerial high-energy arsenal, early warning detection, reconnaissance and surveillance, communication relay, electronic countermeasures and high-resolution earth observation.

[0045] The working process of the present invention is as follows:

[0046] Final assembly and integration stage: Build a simple factory building, place all components of the flying multi-purpose high-altitude wind power generation system by category, complete the joint commissioning and testing of the electrical system, complete the system assembly in the factory building according to the final assembly and integration process plan, and check the assembly quality;

[0047] Safety release phase: determine the release window through weather forecast, open the simple factory building, fill the required light buoyancy gas (e.g. helium can be used in the test verification phase, hydrogen mixed with safety gas can be used in the engineering application phase) into the aerostat 11 through the inflation port, seal the inflation port, confirm the start of the release command, remotely cut the aerostat shape (non-formed) constraint rope in batches, and lift it safely and stably under the action of static buoyancy;

[0048] Long-term aerostat mission stage: After reaching the designed altitude (stratospheric aerostat 1 operates in the upper part of the weak wind layer, and wind energy capture and wireless energy transmission system 3 operates in the jet zone in the lower part of the weak wind layer), the overfilled helium is gradually released through the dual-redundancy active control valve 13 to establish the day and night superheat and overpressure baseline of the aerostat 11. During regional residence, the operating altitude of the stratospheric aerostat is dynamically and autonomously adjusted by the blower 18, combined with the telescopic windward area of ​​the aerodynamic sail 39, and the objective environmental characteristics of the opposite wind direction in the upper and lower parts of the stratospheric high weak wind layer, to achieve the matching of the resistances of the stratospheric aerostat and the aerodynamic sail 39 in the opposite direction, and achieve regional residence (floating weight balance in the height direction). During the maneuvering transfer, the blower 18 dynamically and autonomously adjusts the operating altitude of the stratospheric aerostat (changing the resistance of the aerostat), and the telescopic windward area of ​​the aerodynamic sail 39 is combined with the objective environmental characteristics of the opposite wind directions in the upper and lower parts of the stratospheric high weak wind layer to achieve the direction of the combined resistance of the stratospheric aerostat and the aerodynamic sail 39 in the direction of the required maneuvering, thereby achieving maneuvering transfer (floating weight balance in the height direction);

[0049] Descent and recovery phase: After the mission expires, the system is maneuvered to the stratospheric starting landing area through the predicted landing technology, and the system is separated by sending a cutting command through the ground operation and control center. The stratospheric aerostat system 1 gradually releases the buoyancy gas through the dual-redundancy active control valve 13, slowly and safely descends to the predetermined location and is recovered; the wind energy capture and wireless energy transmission system 3 slowly and safely descends to the predetermined location and is recovered through the parachute 4 (or parafoil) above it.

[0050] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0051] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A flying multi-purpose high-altitude wind power generation system, characterized in that: The invention comprises a stratospheric aerostat system, a hanging cable and a wind energy capture and wireless energy transmission system, wherein the stratospheric aerostat system, the hanging cable and the wind energy capture and wireless energy transmission system are connected in sequence from top to bottom.

2. A flying multi-purpose high-altitude wind power generation system according to claim 1, characterized in that: The stratospheric aerostat system includes an aerostat, a load-bearing flange, a dual-redundancy active control valve, a top equipment compartment, a turntable bearing, a plurality of flexible load-bearing belts and a plurality of upper connecting cables, wherein the interior of the aerostat is filled with light gas; the load-bearing flange is fixed at the top center of the aerostat; the dual-redundancy active control valve and the top equipment compartment are both mounted on the load-bearing flange, and the dual-redundancy active control valve is connected to the interior of the aerostat; the turntable bearing is located below the aerostat; the load-bearing flange is connected to the outer ring of the turntable bearing through a plurality of the flexible load-bearing belts, and the plurality of the flexible load-bearing belts are evenly distributed along the circumference of the aerostat; the inner ring of the turntable bearing is connected to the top end of the suspension cable through a plurality of evenly distributed upper connecting cables.

3. A flying multi-purpose high-altitude wind power generation system according to claim 2, characterized in that: The stratospheric aerostat system further comprises an air blower and an auxiliary air bag, wherein the air blower is installed at the bottom of the aerostat; the auxiliary air bag is located inside the aerostat and is connected to the air blower.

4. A flying multi-purpose high-altitude wind power generation system according to claim 2, characterized in that: The stratospheric aerostat system further comprises a plurality of reinforcing belts, which are all arranged around the plurality of flexible load-bearing belts and the aerostat and are located in the middle and upper part of the aerostat.

5. A flying multi-purpose high-altitude wind power generation system according to claim 2, characterized in that: The stratospheric aerostat system also includes a micro-circulation energy system. A clustering ring is provided at the connection between the multiple upper connecting cables and the suspension cables to form an inverted cone-shaped load-bearing installation space inside the multiple upper connecting cables; the micro-circulation energy system is installed in the load-bearing installation space.

6. A flying multi-purpose high-altitude wind power generation system according to claim 1, characterized in that: It also includes a parachute, a remote-controlled cutting device and a wind measuring device. The hanging cables include an upper hanging cable and a lower hanging cable. The stratospheric aerostat system, the upper hanging cable, the parachute, the lower hanging cable and the wind energy capture and wireless energy transmission system are connected in sequence from top to bottom. The remote-controlled cutting device is installed on the upper hanging cable; the wind measuring device is installed on the lower hanging cable.

7. A flying multi-purpose high-altitude wind power generation system according to claim 1, characterized in that: The wind energy capture and wireless energy transmission system includes a longitudinal load-bearing and mounting truss, a transverse load-bearing and mounting truss, a vertical load-bearing and mounting truss, four lower connecting cables, a wind turbine, a tail wing, a wireless energy transmission equipment cabin and a multifunctional mission payload cabin. The longitudinal load-bearing and mounting truss, the transverse load-bearing and mounting truss and the vertical load-bearing and mounting truss are assembled and connected together, the bottom ends of the four lower connecting cables are respectively connected to the two ends of the longitudinal load-bearing and mounting truss and the two ends of the transverse load-bearing and mounting truss, and the top ends of the four lower connecting cables are all connected to the hanging cables; the wind turbine and the tail wing are respectively installed at the two ends of the longitudinal load-bearing and mounting truss; the wireless energy transmission equipment cabin and the multifunctional mission payload cabin are both installed inside the longitudinal load-bearing and mounting truss.

8. A flying multi-purpose high-altitude wind power generation system according to claim 7, characterized in that: The wind energy capture and wireless energy transmission system also includes multiple pneumatic sails and multiple winches. The multiple pneumatic sails are respectively installed in multiple triangular areas formed between the lateral load-bearing and mounting trusses and the vertical load-bearing and mounting trusses; the multiple winches are all installed on the vertical load-bearing and mounting trusses and are respectively connected to the multiple pneumatic sails.

9. A flying multi-purpose high-altitude wind power generation system according to claim 7, characterized in that: The wind energy capture and wireless energy transmission system also includes lightning rods and electrostatic release brushes, and the lightning rods and electrostatic release brushes are provided on the wireless energy transmission equipment cabin and the multifunctional mission payload cabin.

10. An application of the flying multi-purpose high-altitude wind power generation system according to any one of claims 1 to 9, characterized in that: It is used in the fields of high-altitude wind power generation and grid connection, smart city wireless power supply base stations, aircraft wireless function endurance, emergency assistance, aerial high-energy weapons arsenal, early warning detection, reconnaissance and surveillance, communication relay, electronic countermeasures and high-resolution earth observation.

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