Lift-off auxiliary system

Abstract

The invention relates to a lift-off auxiliary system which comprises a traction body, a balance umbrella and an auxiliary mechanism. The traction body is used for providing initial lift force for the high-altitude acting module, and the initial lift force guides the high-altitude acting module to rise to a first altitude; the balance umbrella is connected with the traction body, and after the balance umbrella is opened windward, the balance umbrella and the traction body jointly continue to guide the high-altitude acting module to a second altitude for acting; the auxiliary mechanism is respectively connected with the balance parachute and the high-altitude acting module, and comprises a traction rope and a control piece for controlling the release and recovery of the traction rope; when the wind speed at the first altitude is not enough to open the balance umbrella, the control piece releases the traction rope, and the traction body continues to rise until the wind speed is enough to open the balance umbrella. According to the scheme, through the auxiliary mechanism, the traction body can continuously drive the balance umbrella to the height at which the wind speed is enough to open the balance umbrella, hovering of the air acting module is avoided, and it is ensured that the umbrella-ladder combined type high-altitude wind energy acting module can still smoothly lift off to do work when the low-altitude wind speed is relatively low.

Description

Technical Field

[0001] The present disclosure relates to the technical field of high-altitude wind energy utilization, and in particular to a lifting auxiliary system. Background Art

[0002] High-altitude wind energy generally refers to medium and high-altitude wind energy above 300 meters above the ground. As the altitude increases, the average wind speed increases, and the density of available wind energy increases. The parachute-ladder combined high-altitude wind power generation system is currently a commonly used device for generating electricity using high-altitude wind energy. Since the aerial work parachute group, cables and other aerial equipment have a certain weight, it can only rise to a limited height by relying on lift guides such as helium balloons or kites. Then, the balance parachute must be deployed to assist in guiding the entire system to a higher altitude to obtain high-altitude wind energy.

[0003] For example, CN101852178A discloses a high-power umbrella-type wind power generation system, including a track rope, a lift guide, at least one set of parachute ladders and a power generation device, wherein the parachute ladder includes a load-bearing parachute (balance parachute) and a working parachute. In this system, a kite or a helium balloon is first used as a guide to lift the aerial system such as the balance parachute and the working parachute group to a suitable altitude, and then the balance parachute is opened at a height that reaches the parachute opening wind speed, and together with the guide, the aerial system is further lifted to a predetermined interval at a higher altitude to perform work.

[0004] However, during the actual launch, when the guide body pulls up the balance parachute, the main cable, and the power parachute installed on the main cable and other aerial equipment to a certain height, if the wind speed at the altitude where the balance parachute is located has not reached the parachute opening wind speed, the entire parachute assembly will be suspended in the air and unable to rise further, so it is impossible to open the parachute and do work. Only when the wind speed at the location of the balance parachute increases to reach the parachute opening speed, can the system continue to rise to the predetermined work altitude range of the power parachute.

[0005] Increasing the buoyancy of the guide body (such as using a larger helium balloon) can only alleviate this problem to a certain extent, and will cause the cost of the equipment to rise sharply. Summary of the invention

[0006] The technical problem to be solved by the present disclosure is to prevent the balance umbrella of a high-altitude wind energy working system from being unable to be opened due to too low wind speed, thereby affecting the working of the working umbrella.

[0007] To achieve the above objectives, the present disclosure adopts the following technical solutions:

[0008] A lift-off auxiliary system comprises a traction body, a balance parachute and an auxiliary mechanism;

[0009] The traction body is used to provide an initial lift for the high-altitude working module, and the initial lift guides the high-altitude working module to rise to a first altitude;

[0010] The balancing parachute is connected to the traction body, and after the balancing parachute is opened against the wind, it continues to guide the high-altitude work module to the second altitude to perform work together with the traction body;

[0011] The auxiliary mechanism is respectively connected to the balance parachute and the high-altitude work module, and includes a traction rope and a control member for controlling the release and recovery of the traction rope;

[0012] When the wind speed at the first altitude is not enough to open the balance parachute, the control component releases the traction rope, and the traction body continues to rise until the wind speed is enough to open the balance parachute.

[0013] Preferably, the traction rope is wound in the auxiliary mechanism, and a motor controls the release or recovery of the traction rope through a transmission member, and the motor is connected to a ground control center.

[0014] More preferably, the traction rope is wound on a drum, and the auxiliary mechanism is further provided with a locking member, the locking member is used to stop the rotation of the drum, and the locking member is connected to the motor or the ground control center.

[0015] Preferably, the auxiliary mechanism comprises a rope arranger, and the rope arranger cooperates with the drum to arrange the traction rope evenly on the drum.

[0016] Preferably, a pulley assembly is provided at the upper end of the auxiliary mechanism, and the auxiliary mechanism is connected to the balancing umbrella via an upper cable wound around the pulley assembly.

[0017] More preferably, the traction body comprises a rotor, a main shaft and a driving assembly; the rotor has its own buoyancy and can rotate freely around the main shaft under force;

[0018] Both ends of the main shaft are symmetrically connected to the balancing parachute. The driving assembly is used to adjust the rotation speed and / or direction of the rotor. The total weight of the rotor and the driving assembly is symmetrically distributed on the main shaft.

[0019] Preferably, the drive assembly includes a main drive motor, an energy storage module and a power generation module;

[0020] The power generation module is used to convert wind energy into electrical energy, the energy storage module is used to store the electrical energy and supply power to the main drive motor, and the main drive motor is used to adjust the rotation speed and / or direction of the rotor.

[0021] More preferably, the power generation module comprises at least one first fan and at least one second fan respectively arranged on both sides of the rotor, the first fan and the second fan are respectively connected to generator motors, and the generator motors are connected to the energy storage module.

[0022] Preferably, the first fan and the second fan are vertical axis fans.

[0023] More preferably, at least one of the first fan and the second fan is provided with an adjustment mechanism for adjusting the pitch angle of the fan blades.

[0024] The technical solution claimed in the present disclosure has achieved the following beneficial effects:

[0025] 1) Releasing the traction rope through the auxiliary mechanism can enable the traction body to continue to drive the balance parachute to an altitude where the wind speed is sufficient to open it, thereby preventing the aerial work module from hovering in the air and ensuring that the parachute-ladder combined high-altitude wind energy work module can still be successfully lifted off and work when the low-altitude wind speed is relatively low, without waiting for the wind speed to increase, thereby avoiding wasting production time and improving work efficiency.

[0026] 2) Since the auxiliary mechanism can fully utilize the lift potential of the traction body and bring the balance parachute to a higher altitude, in areas with stable wind speeds, the auxiliary mechanism can be used in conjunction with a smaller traction body (such as a helium balloon) for lift operations, thereby greatly saving the cost of using the traction body.

[0027] 3) By using the Magnus effect rotor as the guide body, the use of helium can be further saved, and any required lift can be obtained by adjusting the rotation speed and / or direction of the rotor, and the lift of the aerial tether can be flexibly controlled without being restricted by altitude.

[0028] 4) The Darrieus wind turbine has high power conversion efficiency and can continuously provide the required power for the rotor and other electrical equipment in the lift auxiliary system. And because the pitch angle of the Darrieus wind turbine blades can be adjusted according to the actual changes in the high-altitude environment, it can maintain the best windward angle of attack, thereby maximizing the power generation efficiency.

[0029] 5) By adjusting the pitch angles of the Darrieus-type wind turbine blades on both sides of the rotor respectively, the auxiliary lift system can undergo a predetermined horizontal deflection in a certain altitude. When the adjustment of the pitch angle of the wind turbine blades is combined with the adjustment of the rotor steering / rotation speed, the tethered system can further achieve synchronous position transfer in the horizontal and vertical directions within a certain spatial range, which is beneficial for space obstacle avoidance or space maneuvering. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are merely embodiments of the present disclosure, and a person of ordinary skill in the art can obtain other drawings based on the provided drawings without paying any creative work.

[0031] Figure 1 This is a schematic diagram of the structure of the high-altitude work module including the lift-off auxiliary system.

[0032] Figure 2 Schematic diagram of the internal structure of the auxiliary mechanism.

[0033] Figure 3 Schematic diagram of the three stages of assisted launch by the launch assist system.

[0034] Figure 4 The diagram is a structural diagram of a high altitude work module of a lift assist system that uses a Magnus effect rotor as a traction member.

[0035] Figure 5 Schematic diagram of the Magnus effect rotor structure.

[0036] Reference numerals:

[0037] 100-traction body; 200-balance parachute; 300-auxiliary mechanism; 301-upper cable; 302-pulley; 303-pulley mounting shaft; 304-housing; 305-motor; 306-battery; 307-transmission and locking assembly; 308-drum; 309-rope guide; 400-traction rope; 500-working parachute; 600-main cable; 700-ground equipment; 800-rotor; 801-installation main shaft; 802-first vertical axis fan; 803-first generator motor; 804-main drive motor; 805-second vertical axis fan; 806-second generator motor; 807-traction bracket. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and beneficial effects of the embodiments of the present disclosure clearer, the technical solution in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0039] Example 1

[0040] This embodiment provides a lift-off assist system. Figure 1As shown, the system is mainly composed of a traction body 100, at least one balance parachute 200 and an auxiliary mechanism 300. The balance parachute 200 is connected to the traction body 100, and the auxiliary mechanism 300 is respectively connected to the balance parachute 200 and the high-altitude working module. The auxiliary mechanism 300 includes a traction rope 400 and a control member for controlling the release and recovery of the traction rope 400. Among them, the traction body 100 is used to provide an initial lift for the high-altitude working module, and the initial lift guides the lift auxiliary system and the high-altitude working module to rise to a first altitude. When the wind force at the first altitude is strong enough, the balance parachute 200 opens against the wind, and together with the traction body 100, continues to guide the high-altitude working module to a second altitude where the wind speed is sufficient to work. When the wind speed at the first altitude is not enough to open the balance parachute 200, the control member of the auxiliary mechanism 300 releases the traction rope 400.

[0041] Among them, the traction body 100 in this embodiment can be a helium balloon or a kite, etc. When the balance parachute 200 opens against the wind, it can further provide continuous lift, and together with the traction body 100, guide the aerial work module to a predetermined altitude range to start working, and balance the system's own weight during the working process. The auxiliary mechanism 300 stores a certain length of traction rope 400 inside it, and connects the aerial work module through the traction rope 400. At least one work parachute 500 is set on the main cable 600 of the aerial work module. When the work parachute 500 is opened, it can capture high-altitude wind energy and generate huge traction on the main cable 600, thereby pulling the ground equipment 700 to work or generate electricity.

[0042] Specifically, during the launch of the aerial work module, from the perspective of cost and actual needs, the traction body 100 generally only provides limited lift, and the self-weight balance of the aerial work module is mainly maintained by the balance parachute 200. The lift that the balance parachute 200 can provide is proportional to the windward area and the square of the wind speed, so the smooth opening of the balance parachute 200 is very critical to the launch of the aerial work module.

[0043] When the wind condition near the ground is good, before the traction body 100 rises to the maximum hovering height, the balance parachute 200 will obtain the wind speed required for opening the parachute, thereby smoothly opening the parachute, and together with the traction body 100, continue to tow the aerial working module to a predetermined altitude. Then the working parachute 500 is also smoothly opened by the wind and captures high-altitude wind energy to perform work or generate electricity.

[0044] When the wind conditions near the ground are not good, even if the traction body 100 has reached the hovering height, the position of the balance parachute 200 may still not reach the parachute opening wind speed. In this case, the traditional flying operation method can only let the high-altitude working module hover and wait for the wind, resulting in a huge waste of operation time. In this embodiment, the traction body 100 can continue to bring the balance parachute 200 to a higher altitude after reaching the hovering height by continuing to release the traction rope 400 through the auxiliary mechanism 300. Generally speaking, the higher the altitude, the greater the wind speed. When the balance parachute 200 continues to rise and gradually reaches the altitude where the parachute opening wind speed is located, it will open smoothly.

[0045] Figure 2 The schematic diagram of the internal structure of the auxiliary mechanism 300 is shown as an example. The auxiliary mechanism 300 mainly includes a housing 304, a motor 305, a battery 306, a transmission and locking assembly 307, a drum 308, a rope guide 309, a pulley assembly, and a wireless communication module for communicating with a ground control center. The transmission and locking assembly 307 includes a transmission member and a locking member, and the pulley assembly includes a pulley 302 and a pulley mounting shaft 303. The auxiliary mechanism 300 is usually installed at the bottom of the balance umbrella 200, and can also be installed between two balance umbrellas 200 umbrella groups as needed. The upper part of the auxiliary mechanism 300 is connected to the upper balance umbrella 200 through an upper cable, and the lower end of the upper cable is wound around the pulley assembly of the auxiliary mechanism 300 to reduce friction during traction. The battery supplies power to various power modules such as motors inside the auxiliary mechanism 300.

[0046] In the exemplary structure, the traction rope 400 is wound on the drum 308, and the two ends of the drum 308 are fixed on the side walls of the shell 304. The motor 305 controls the rotation of the drum 308 through a transmission member (such as a gear), thereby controlling the release or recovery of the traction rope 400. In addition, the motor or the ground control center can lock the drum 308 in a non-actuated state by controlling the locking member to maintain reliable braking of the lift auxiliary system. In the preferred structure, the traction rope 400 can be collected and released with reference to the rope collection and release structure of the winch. The rope guide 309 can also be set with reference to the winch, and the rope guide 309 cooperates with the drum 308 to ensure that the traction rope 400 is evenly arranged on the drum. Reference Figure 2 The rotation of the shaft where the drum and the rope guide are located can be connected by gears or sprockets, and the rotation of the shaft of the drum and the rope guide can be synchronized according to a preset speed ratio, so that when the drum rotates one circle, the rope guide just evenly translates a distance of a rope diameter.

[0047] Figure 3 The process of assisted lift-off using the assisted lift-off system in this embodiment is shown, which is divided into three stages.

[0048] Phase 1 is the initial lift-off process. The traction body 100 pulls each aerial device into the air in turn and gradually reaches the hovering height. If the balance parachute 200 obtains the parachute opening wind speed before reaching the hovering height, the balance parachute 200 will open smoothly and continue to pull the aerial working module to the predetermined altitude together with the traction body 100, and the lift-off operation of the parachute-ladder combined high-altitude wind power working module will be successfully completed. Next, the aerial working module will open the working parachute 500 according to the predetermined procedure to capture the high-altitude wind energy and pull the ground equipment 700 to do work or generate electricity.

[0049] If the wind speed of each aerial device towed by the traction body 100 has not reached the parachute opening wind speed of the balance parachute 200 after reaching the hovering height, the aerial work module will temporarily hover in the air and enter stage 2. At this time, the ground control system sends an instruction to the auxiliary mechanism 300. After receiving the system instruction, the auxiliary mechanism 300 releases the locking member and releases the traction rope 400 at a certain speed under the control of the motor. At this time, the traction body 100 will change from the hovering state to the continued lifting state, leading the balance parachute 200 and the auxiliary mechanism 300 to further rise to a higher altitude range until the balance parachute 200 reaches the height where the parachute opening wind speed is located. In this process, each aerial device located below the traction rope 400 continues to maintain a hovering waiting state. When the balance parachute 200 reaches the height where the parachute opening wind speed is located, the auxiliary mechanism 300 brakes the drum through the locking member and stops releasing the traction rope 400. At this time, the balance parachute 200 will open against the wind.

[0050] Then enter the third stage, the balance parachute 200 will pull all the aerial working equipment together with the traction body 100 to the predetermined altitude range. The working parachute 500 will also open the parachute against the wind at a predetermined altitude, capture the strong high-altitude wind energy, and drive the ground equipment to do work or generate electricity through the main cable 600. In particular, when necessary, after the working parachute 500 opens, the balance parachute 200 can be temporarily and actively closed, so that the tension of the traction rope 400 is lower than the driving capacity of the motor of the auxiliary mechanism 300, so that the auxiliary mechanism 300 can be properly retracted. Then the auxiliary mechanism 300 locks the drum again and opens the balance parachute 200 again to balance the counterweight of the aerial system. The adjustment mechanism for actively closing or opening the balance parachute 200 is controlled by the ground control center. The specific switching method of the balance parachute 200 can be the same as the switching method of the existing working parachute 500, and there is no limitation on this.

[0051] In the preferred solution, by monitoring the real-time wind conditions and altitude, the integrated control of stage one and stage two can be achieved through the automatic control system without the need for human intervention, thereby achieving autonomous and stable liftoff of the aerial components of the parachute-ladder working system.

[0052] In this embodiment, the traction rope is released by the auxiliary mechanism, so that the traction body can continue to drive the balance parachute to an altitude where the wind speed is sufficient to open it, thereby preventing the aerial work module from hovering in the air, and ensuring that the parachute-ladder combined high-altitude wind energy work module can still be successfully lifted off and work when the low-altitude wind speed is relatively low, without waiting for the low-altitude wind speed to increase, thereby avoiding wasting production time and improving work efficiency.

[0053] Moreover, since the auxiliary mechanism can fully utilize the lift potential of the traction body and bring the balance parachute to a higher altitude, in areas with stable wind speeds, the auxiliary mechanism can be used in combination with a smaller traction body for lifting operations, thereby greatly saving the cost of using the traction body.

[0054] Example 2

[0055] The lift-to-drag ratio of a traditional floating body such as a helium balloon as the traction body 100 cannot be controlled during the launch process. Especially when the wind speed is unstable, the various devices on the main cable 600 are prone to repeated rise and fall, and even have the risk of landing, which poses a great challenge to the safety of the launch. Therefore, this embodiment adopts a more stable device with a controllable lift-to-drag ratio as the traction body 100. The difference between this embodiment and embodiment 1 is only that the specific setting structure of the traction body 100 is different, and the rest of the structural settings can refer to embodiment 1.

[0056] The traction body 100 in this embodiment includes a rotor 800, an installation main shaft 801 and a drive assembly. The rotor 800 has its own buoyancy and can rotate freely around the installation main shaft 801 under force. Traction brackets 807 are symmetrically provided at both ends of the installation main shaft 801. The traction brackets 807 are connected to the balance parachute 200 through symmetrical Y-shaped connecting cables. The drive assembly is used to adjust the rotation speed and / or direction of the rotor 800. The total weight of the rotor 800 and the drive assembly is symmetrically distributed on the installation main shaft 801. In a preferred embodiment, the drive assembly includes a main drive motor 804, an energy storage module and a power generation module. The power generation module is used to convert wind energy into electrical energy, the energy storage module is used to store electrical energy and supply power to the main drive motor, and the main drive motor 804 is connected to the ground control center and is used to adjust the rotation speed and / or direction of the rotor.

[0057] The rotor 800 in this embodiment is a Magnus effect rotor. Figure 4 The schematic diagram of the Magnus effect rotor as the traction body 100 of the parachute-ladder combined high-altitude wind energy system is shown in FIG. It can realize the stable and controllable lift of the system, and the amount of floating gas required is greatly reduced under the condition of providing the same lift, which greatly reduces the gas cost.

[0058] Figure 5The main structural diagram of the Magnus effect rotor traction body is shown. All the components of the traction body 100 are symmetrically mounted on a light and tough mounting main shaft 801 according to mass. In the middle is a cylindrical Magnus effect rotor. The outer surface of the rotor 800 is made of a material with strong sealing, radiation resistance, light weight and certain toughness, preferably a multi-layer structure. The inside of the rotor 800 is hollow and a lightweight rigid bracket is appropriately set to maintain the shape of the rotor 800. The internal space of the rotor 800 is filled with helium or a helium-hydrogen mixture to provide initial lift.

[0059] The Magnus effect rotor is driven by the main drive motor 804 and can freely rotate forward or reverse around the main shaft 801. At both ends of the main shaft 801, at least two vertical axis fans are symmetrically arranged, namely the first vertical axis fan 802 and the second vertical axis fan 805. The vertical axis fans are preferably Darrieus type fans. When the first vertical axis fan 802 and the second vertical axis fan 805 are rotated by the wind, they respectively drive the first generator motor 803 and the second generator motor 806 to generate electricity. The converted electric energy is stored in the energy storage module in real time, and can also be used to provide sufficient and sustainable electric energy for various electrical equipment on the traction body 100 except the main drive motor.

[0060] In this embodiment, since Darrieus blowers are generally difficult to start, the first generator motor 803 and the second generator motor 806 first obtain electrical energy from the energy storage module to drive the first vertical axis fan 802 and the second vertical axis fan 805 to reach the starting speed, and then switch to the power generation mode when the first vertical axis fan 802 and the second vertical axis fan 805 achieve stable rotation.

[0061] During the launch of the system, the Magnus effect rotor is filled with helium or a mixture of helium and hydrogen, which can provide a certain initial buoyancy force to keep the traction body aloft. According to the Kutta-Joukowski formula:

[0062] L=-ρv ∞ Γb

[0063] That is, when the incoming flow velocity is v ∞ When a fluid has a circulation flow around a cylinder, the lift L exerted by the fluid on the rotating cylinder with a length of b is the fluid density ρ, the incoming flow velocity v ∞ The product of the velocity circulation Γ. Therefore, as long as the wind speed is not 0, the lift perpendicular to the wind speed direction can be obtained by driving the Magnus effect rotor to rotate through the main drive motor.

[0064] like Figure 5As shown, if the wind blows from the left side to the traction body 100, when the main drive motor drives the rotor 800 to rotate clockwise along the angle shown in the figure, the traction body 100 will obtain a controllable upward lift in the vertical wind direction. Therefore, by real-time monitoring of wind speed and altitude, and controlling the speed of the Magnus effect rotor, the lift of the traction body 100 can be adjusted in real time to guide the various aerial modules of the parachute-ladder combined high-altitude wind energy system to be stably lifted.

[0065] Similar to Example 1, if the wind conditions near the ground are good, the Magnus effect rotor traction body can directly bring the balance parachute 200 to the wind speed range required for parachute opening, and then the balance parachute 200 is opened, and together with the traction body 100, pulls each aerial system to reach a predetermined work altitude range.

[0066] If the wind conditions near the ground are not good and the Magnus effect rotor in the traction body 100 cannot obtain sufficient lift through self-rotation, the auxiliary mechanism 300 releases the traction rope 400, so that the traction body 100 can continue to pull the balance parachute 200 to a higher altitude under limited lift and obtain the required parachute opening wind speed. Then the balance parachute 200 opens and pulls each aerial system together with the traction body 100 to reach the predetermined work altitude range.

[0067] In the preferred solution, since the lift of the Magnus effect rotor traction body is controllable, especially the lift will be downward during reversal, the balance parachute 200 can be used to coordinate with the switch parachute, and after the working parachute 500 is opened, the tension of the traction rope 400 under the auxiliary mechanism 300 can be controlled maneuverably, so that the motor 305 in the auxiliary mechanism 300 can smoothly drive the roller 308 to retract the traction rope 400 to an appropriate length, so as to better facilitate the control of the aerial system.

[0068] More preferably, the Magnus effect rotor traction body can not only lead the aerial system to realize maneuvering control in the vertical direction, but also can adjust the blade pitch angle of the Darrieus fan through the adjustment mechanism, breaking the symmetrical balance of the traction body 100, so that the traction body 100 can realize a certain horizontal deflection in the air and re-balance, that is, the traction body 100 can guide the aerial system to realize a certain maneuvering control in the horizontal space direction. In this embodiment, the adjustment mechanism can be a cam push rod or an eccentric wheel, etc., which is not limited.

[0069] When the adjustment of the pitch angle of the fan blades is combined with the adjustment of the rotor steering / speed, the lift-off auxiliary system can be further synchronized to achieve horizontal and vertical position transfer within a certain spatial range, which is beneficial for space obstacle avoidance or space maneuvering. Compared with tethering solutions such as helium balloons, this embodiment can not only flexibly achieve space maneuvers, but also has a simple control method, a large control range, and more outstanding maneuverability.

[0070] The embodiments and application examples described above are merely illustrative descriptions of the present disclosure and are not intended to limit the scope of the present disclosure. Without departing from the design spirit of the present disclosure, various modifications and improvements made to the technical solutions of the present disclosure by ordinary technicians in this field should all fall within the protection scope determined by the present disclosure.

Claims

1. A lift-off assist system, characterized in that: It includes a traction body, a balance parachute and an auxiliary mechanism; The traction body is used to provide an initial lift for the high-altitude working module, and the initial lift guides the high-altitude working module to rise to a first altitude; The balancing parachute is connected to the traction body, and after the balancing parachute is opened against the wind, it continues to guide the high-altitude work module to the second altitude to perform work together with the traction body; The auxiliary mechanism is respectively connected to the balance parachute and the high-altitude work module, and includes a traction rope and a control member for controlling the release and recovery of the traction rope; When the wind speed at the first altitude is not enough to open the balance parachute, the control component releases the traction rope, and the traction body continues to rise until the wind speed is enough to open the balance parachute.

2. The lift-off assist system according to claim 1, characterized in that: The traction rope is wound and arranged in the auxiliary mechanism, and the motor controls the release or recovery of the traction rope through a transmission member, and the motor is connected to a ground control center.

3. The lift-off assist system according to claim 2, characterized in that: The traction rope is wound on a drum, and the auxiliary mechanism is further provided with a locking member, which is used to stop the rotation of the drum, and the locking member is connected to the motor or the ground control center.

4. The lift-off assist system according to claim 3, characterized in that: The auxiliary mechanism comprises a rope arranger, and the rope arranger cooperates with the drum to arrange the traction rope evenly on the drum.

5. The lift-off assist system according to claim 2, characterized in that: A pulley assembly is provided at the upper end of the auxiliary mechanism, and the auxiliary mechanism is connected to the balancing parachute via an upper cable wound around the pulley assembly.

6. The lift-off assist system according to any one of claims 1 to 5, characterized in that: The traction body comprises a rotor, a main shaft and a driving assembly; the rotor has its own buoyancy and can rotate freely around the main shaft under force; Both ends of the main shaft are symmetrically connected to the balancing parachute. The driving assembly is used to adjust the rotation speed and / or direction of the rotor. The total weight of the rotor and the driving assembly is symmetrically distributed on the main shaft.

7. The lift-off assist system according to claim 6, characterized in that: The drive assembly includes a main drive motor, an energy storage module and a power generation module; The power generation module is used to convert wind energy into electrical energy, the energy storage module is used to store the electrical energy and supply power to the main drive motor, and the main drive motor is used to adjust the rotation speed and / or direction of the rotor.

8. The lift-off assist system according to claim 7, characterized in that: The power generation module includes at least one first fan and at least one second fan respectively arranged on both sides of the rotor, the first fan and the second fan are respectively connected to a generator motor, and the generator motor is connected to the energy storage module.

9. The lift-off assist system according to claim 8, characterized in that: The first fan and the second fan are vertical axis fans.

10. The lift-off assist system according to claim 8, characterized in that: At least one of the first fan and the second fan is provided with an adjustment mechanism for adjusting the pitch angle of the fan blades.

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