High-altitude wind energy acting system

Abstract

The invention relates to a high-altitude wind energy acting system which comprises a main cable, an acting umbrella, a mooring device and a driving assembly. The other end of the main cable is connected with ground equipment; the main mooring rope penetrates through an umbrella top opening of the acting umbrella, the umbrella top opening is connected with a first walking mechanism through a plurality of first umbrella ropes, and the umbrella periphery of the acting umbrella is connected with a second walking mechanism arranged below the acting umbrella through a plurality of second umbrella ropes. The driving assembly comprises a first driver, a second driver and a third driver which are fixed on the main cable; the first drive and the second drive are respectively arranged above and below the acting umbrella and are connected with the first walking mechanism to jointly control the first walking mechanism to slide up and down along the main cable; the third drive is connected with the second walking mechanism and used for controlling the second walking mechanism to slide up and down along the main cable. The walking mechanism is driven by the fixed driving assembly to slide up and down in a part of sections of the main cable, and abrasion to the main cable and system operation energy consumption are reduced.

Description

Technical Field

[0001] The present disclosure relates to the technical field of high-altitude wind energy, and particularly to a high-altitude wind energy work system. Background Art

[0002] High-altitude wind energy generally refers to the medium- and high-altitude wind energy more than 300 meters above the ground. As the altitude increases, the average wind speed also becomes greater. The umbrella-ladder combined high-altitude wind energy power generation system is one of the current technical solutions for utilizing high-altitude wind energy for power generation. In this system, a driving member located above and / or below the working umbrella and capable of walking on the main cable assists in the opening and closing of the working umbrella. Since the upper driving member and / or the lower driving member has a large weight and needs to repeatedly and quickly walk on the main cable and accurately reach and stay at a predetermined position, generally, walking methods such as the climbing nail belt type or the friction type are adopted.

[0003] For example, CN200910190150.2 discloses a high-power umbrella-type wind power generation system, which includes a main cable guided by a helium balloon or the like. At least one working umbrella is arranged on the main cable. The working umbrella includes two upper and lower drives that can freely walk on the main cable. The upper drive can drive the umbrella top to walk up and down on the main cable. The periphery of the working umbrella is connected to the lower drive through several umbrella ropes. The lower drive is associated with a bushing fixed on the main cable and can be controllably connected and separated from the bushing. When the umbrella is opened, the lower drive is connected to the bushing. The high-altitude wind force received by the umbrella surface is transmitted to the lower drive through the umbrella ropes, and then transmitted to the main cable through the bushing. The main cable then pulls the ground system to do work or generate electricity. When the aerial system reaches the upper altitude limit, the system is controlled to close the umbrella. At this time, the lower drive and the bushing are separated, and the lower drive quickly ascends a certain distance. At this time, the working umbrella will be turned over by the wind. At the same time, the upper drive descends and pushes the lower drive to connect with the bushing again, and the ground system pulls the aerial module down to the lower altitude limit. Then, the upper drive ascends to a predetermined position on the main cable, and the system opens the umbrella again.

[0004] The above walking methods not only consume more energy, but also pose a greater challenge to the endurance of the drive. At the same time, both the climbing nail type and the friction type walking need to generate a large clamping force on the main cable, which will cause greater wear on the main cable and affect the reliability of the system's long-term operation. Summary of the Invention

[0005] The purpose of the present disclosure is to reduce the clamping friction force between the driving member and the main cable in the high-altitude wind energy work system to reduce the wear on the main cable during the walking process, and at the same time reduce the energy consumption of the driving member.

[0006] To achieve the above purpose, the present disclosure adopts the following technical solutions:

[0007] Provided is an airborne wind energy power generation system, including a main cable, a working parachute, a mooring device and a driving assembly; one end of the main cable is connected to the mooring device, and the other end is connected to ground equipment;

[0008] The main cable passes through the top opening of the working parachute, and the top opening is connected to a first traveling mechanism through a plurality of first parachute ropes. The perimeter of the working parachute is connected to a second traveling mechanism disposed below the working parachute through a plurality of second parachute ropes;

[0009] The driving assembly includes a first drive, a second drive and a third drive fixed on the main cable; the first drive and the second drive are respectively disposed above and below the working parachute and connected to the first traveling mechanism, and jointly control the first traveling mechanism to slide up and down along the main cable;

[0010] The third drive is connected to the second traveling mechanism and is used to control the second traveling mechanism to slide up and down along the main cable.

[0011] Preferably, the first drive and the second drive are respectively connected to the first traveling mechanism through a first control rope and a second control rope. The first drive controls the retraction and extension of the first control rope, and the second drive controls the retraction and extension of the second control rope.

[0012] Preferably, the third drive is connected to the second traveling mechanism through a third control rope, and the third drive controls the retraction and extension of the third control rope.

[0013] More preferably, circumferential rotation mechanisms capable of circumferential rotation are respectively disposed on the outer perimeters of the first traveling mechanism and the second traveling mechanism, and the first parachute ropes and the second parachute ropes are connected to the circumferential rotation mechanisms;

[0014] The first control rope and the second control rope are connected to the non-rotating part of the first traveling mechanism, and the third control rope is connected to the non-rotating part of the second traveling mechanism.

[0015] Preferably, pulleys for traveling on the main cable are respectively disposed inside the first traveling mechanism and the second traveling mechanism.

[0016] Preferably, a locking mechanism for locking the second traveling mechanism is disposed on the main cable.

[0017] More preferably, a limit buffer mechanism for blocking the second traveling mechanism is disposed below the second drive.

[0018] Preferably, a plurality of folding ropes are provided along the warp direction on the inner side of the work umbrella. One end of each folding rope is connected to the edge of the opening at the top of the umbrella, and the other end is connected to a folding rope control mechanism. The folding rope control mechanism is arranged on the main cable and is used to control the retraction and extension of the folding ropes.

[0019] More preferably, the folding rope control mechanism is connected to the first traveling mechanism.

[0020] Preferably, a plurality of limiting rings are provided along the warp direction on the inner side of the work umbrella, and the folding ropes are threaded through the limiting rings.

[0021] The technical solutions claimed in the present disclosure have achieved the following beneficial effects:

[0022] 1) By means of the fixed driving assembly and the setting that only drives the traveling mechanism to slide up and down on a partial section of the main cable, the holding force and frictional force on the main cable can be greatly reduced, the wear of the main cable can be decreased, and the reliability and service life of the main cable are improved.

[0023] 2) Due to the action of gravity, the second drive and the third drive only need to consume extremely little energy to realize the downward movement of the first traveling mechanism and the second traveling mechanism; while the upward movement of the second traveling mechanism is the result of the action of wind force, and almost no energy consumption of the third drive is required; when the first traveling mechanism moves upward, as the umbrella is gradually opened, the wind force will push the top of the umbrella to drive the first traveling mechanism to move upward. At the same time, the driving member and its accessory mechanisms such as the battery pack and other non-essential traveling components are fixedly installed on the main cable and do not need to participate in the sliding movement. Therefore, compared with the climbing nail type or frictional type traveling design, the technical solution provided by the present disclosure is more energy-saving.

[0024] 3) As the first traveling mechanism moves upward, a certain windward space will be formed inside the umbrella surface of the work umbrella, so that the opening of the work umbrella will become very easy.

[0025] 4) The folding of the umbrella surface during closing is realized through the folding ropes and the folding control mechanism, which reduces the movement distance of the first traveling mechanism and the second traveling mechanism, and simultaneously reduces the installation distance of the first drive and the second drive, improves the reliability of control, and is also beneficial to the storage when the work umbrella is recovered to the ground, avoiding excessive friction between the work umbrella and the ground in the free state. In addition, since a certain wind-catching effect will be formed when the umbrella surface is folded, during the re-opening stage, as long as the folding rope control mechanism releases the folding ropes, the umbrella surface can be blown open by the wind, further reducing the energy consumption required for the first drive to lift the first traveling mechanism. Description of the Drawings

[0026] To more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only the embodiments of the present disclosure. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the provided drawings.

[0027] Figure 1 It is a schematic diagram of the main structure of the high-altitude wind energy power generation system.

[0028] Figure 2 It is a schematic diagram of the initial state of the high-altitude wind energy power generation system taking off.

[0029] Figure 3 It is a schematic diagram of the state of the high-altitude wind energy power generation system at the moment of closing the parachute.

[0030] Figure 4 It is a schematic diagram of the reset of the second traveling mechanism of the high-altitude wind energy power generation system.

[0031] Figure 5 It is a schematic diagram of the parachute opening process of the high-altitude wind energy power generation system.

[0032] Figure 6 It is a schematic diagram of the high-altitude wind energy power generation system with a parachute-ladder structure.

[0033] Figure 7 It is a schematic diagram of partial parachute opening of the high-altitude wind energy power generation system with a parachute-ladder structure.

[0034] Figure 8 It is a schematic diagram of the installation position of the folding control mechanism.

[0035] Figure 9 It is a schematic diagram of the folding rope setting method.

[0036] Figure 10 It is a schematic diagram of the initial stage of recovery of the high-altitude wind energy power generation system configured with a folding rope control mechanism.

[0037] Figure 11 It is a schematic diagram of the completion stage of recovery of the high-altitude wind energy power generation system configured with a folding rope control mechanism.

[0038] Reference numerals:

[0039] 101 - Main cable; 102 - Third drive; 103 - Third control rope; 104 - Locking mechanism; 105 - Second traveling mechanism; 106 - Limit buffer mechanism; 107 - Second drive; 108 - Second control rope; 109 - Second parachute rope; 110 - Working parachute; 111 - First parachute rope; 112 - First traveling mechanism; 113 - First control rope; 114 - First drive; 115 - Mooring device; 116 - Folding rope control mechanism; 117 - Folding rope. Detailed implementation manners

[0040] To make the objectives, technical solutions, and beneficial effects of the embodiments in the present disclosure clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present disclosure with reference to the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are a part rather than all of the embodiments of the present disclosure. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present disclosure without creative efforts shall fall within the scope of protection of the present disclosure.

[0041] Embodiment 1

[0042] This embodiment provides a high-altitude wind energy power generation system for driving a fixed open / closed work umbrella. The system includes a main cable towed at a certain angle by a mooring device, and the other end of the main cable is connected to ground power generation and / or power equipment. At least one work umbrella is installed on the main cable, and the main cable passes through an orifice at the top of the work umbrella. The shape of the work umbrella adopts a configuration similar to that of a drag parachute.

[0043] Each work umbrella is configured with three drives, namely a first drive, a second drive, and a third drive. Among them, the first drive is fixedly installed on the main cable at an appropriate position above the orifice at the top of the umbrella, the third drive is fixedly installed on the main cable at an appropriate position below the work umbrella, and the second drive is fixedly installed on the main cable at an appropriate position between the first drive and the third drive and biased towards the top of the umbrella.

[0044] A first traveling mechanism is arranged between the first drive and the second drive. The first traveling mechanism can freely slide up and down on the main cable through an internal pulley. The periphery of the first traveling mechanism includes a flange that can rotate circumferentially as a rotating mechanism, and the other ends of several first umbrella ropes uniformly arranged around the orifice at the top of the work umbrella are uniformly attached to the flange. When the first traveling mechanism slides on the main cable under control, it can drive the top of the umbrella to move together.

[0045] The sliding position of the first traveling mechanism is jointly controlled by the first drive and the second drive. Exemplarily, the sliding position of the first traveling mechanism is determined by a first control rope and a second control rope jointly controlled by the first drive and the second drive. The first control rope connects the first drive and the first traveling mechanism, and the second control rope connects the second drive and the first traveling mechanism. The first drive and the second drive respectively control the retraction and release of the first control rope and the second control rope. When the first drive releases the first control rope and the second drive retracts the second control rope, the first traveling mechanism will drive the top of the umbrella to move downward; when the first drive retracts the first control rope and the second drive releases the second control rope, the first traveling mechanism will drive the top of the umbrella to move upward.

[0046] A locking mechanism is fixedly arranged on the main cable at an appropriate position above the third drive, and the locking mechanism and the second traveling mechanism can be locked or separated. After the second traveling mechanism is separated from the locking mechanism, it can slide freely up and down on the main cable through the built-in pulley. The periphery of the second traveling mechanism includes a flange that can rotate in the circumferential direction as a rotating mechanism, and the other ends of several second parachute ropes uniformly arranged around the parachute of the power parachute are evenly attached to the flange. The second traveling mechanism is also connected to the third drive through a third control rope.

[0047] During the opening stage of the power parachute, the second walking mechanism is tightly connected with the locking mechanism, and the tension transmitted by the second parachute rope is transmitted to the locking mechanism, and then to the main cable, so as to pull the ground equipment to do work or generate electricity; during the closing stage of the power parachute, the second walking mechanism is controlled to separate from the locking mechanism, and at the same time the third drive releases the third control rope. At this time, the second walking mechanism will slide up a distance along the main cable driven by the residual tension of the second parachute rope; during the resetting stage, the third drive pulls back the second walking mechanism and tightly connects it with the locking mechanism again by recovering the third control rope.

[0048] The operation process of the high altitude wind energy system in this embodiment can be referred to Figures 1 to 7 :

[0049] 1) Figure 2 The display shows the state of the working system in the initial state of lift-off or when the wind speed has not reached the cut-in speed. At this time, the mooring device 115 pulls the main cable 101 to suspend in the air at a certain angle, and at least one working parachute 110 and a set of driving equipment are installed on the main cable 101. The second walking mechanism 105 and the locking mechanism 104 are in a locked state, and the first drive 114 and the second drive 107 simultaneously control the first control rope 113 and the second control rope 108 to pull the first walking mechanism 112 to a preset position preset on the main cable 101.

[0050] 2) When the mooring device pulls each aerial device to the preset lower limit altitude and the wind speed reaches the cut-in wind speed, the power parachute 110 will be deployed by the wind, presenting Figure 1 The working parachute 110 is subjected to the wind force, and transmits the huge pulling force generated by the wind energy to the second walking mechanism 105 through a plurality of second parachute ropes 109, and then transmits it to the main cable 101 through the locking mechanism 104 fixed on the main cable 101, and then the main cable 101 pulls the ground equipment that has switched to the working and / or power generation mode to do work or generate electricity.

[0051] 3) When the aerial power generation system operates to the upper altitude limit, the working parachute 110 will be controlled to close. The specific process is as follows: The third driver 102 (for example, through a small winch or similar device) releases the third control rope 103, and the locking mechanism 104 releases the buckle. At this time, the second traveling mechanism 105 is driven by the tension of the second parachute rope 109 and will pull the third control rope 103 to quickly move upward along the main cable 101. At the same time, under the action of the aerial wind force, the parachute surface of the working parachute 110 will quickly fold upward and lose the ability to capture wind. The limit buffer mechanism 106 below the second driver 107 is used to prevent the second traveling mechanism from hitting the second driver 107 due to inertia. The instantaneous effect of closing the parachute is as Figure 3 shown.

[0052] 4) Then the second driver 107 (for example, through a small winch or similar device) starts to drive the second control rope 108, and at the same time, the first driver 114 (for example, through a small winch or similar device) cooperates to release the first control rope 113. The first traveling mechanism 112 is pulled by the second control rope 108 and pulls the folded working parachute 110 along the main cable 101 downward through the first parachute rope 111 until the top of the working parachute 110 reaches near the second driver 107. At the same time, as the working parachute 110 basically loses the ability to capture wind due to folding, the second traveling mechanism 105 loses the tension of the second parachute rope 109 and moves downward under the action of gravity and the traction of the third driver 102 through the third control rope 103, and locks with the locking mechanism 104 again to achieve reset. During the reset process of the second traveling mechanism 105, since the working parachute 110 continuously maintains the folded state and loses the ability to capture wind, the ground system switches to the restoration mode, and only needs to consume a little energy to pull the entire aerial power generation system back to the lower altitude limit through the main cable 101 to prepare for the next ascent. The specific process effect diagram is as Figure 4 shown.

[0053] 5) When the aerial power generation system returns to the preset lower altitude limit again, the ground system stops recovering the main cable 101 and switches to the power generation and / or power generation mode. The first driver 114 pulls the first control rope 113 and drags the first traveling mechanism 112 upward along the main cable 101, while the second driver 107 cooperates to release the second control rope 108. As the top of the working parachute 110 is pulled upward along the main cable 101 by the first traveling mechanism 112, the internal space of the working parachute 110 gradually becomes a straw hat-shaped windward space and is opened by the wind. At this time, with the assistance of the wind force at the top of the parachute, the first driver 114 only needs to consume a little energy to pull the first traveling mechanism 112 to the preset position on the main cable 101. The working parachute 110 thus successfully completes the opening action and captures the strong aerial wind force again, which is transmitted to the main cable 101 to drive the ground equipment to start the next power generation and / or power generation cycle.

[0054] In this embodiment, circumferentially rotating flange mechanisms are provided around the first walking mechanism 112 and the second walking mechanism 105, and the first suspension rope 111 and the second suspension rope 109 are respectively attached to the flange mechanisms. When the working parachute 110 is unevenly stressed and rotates along the main cable 101 in the air, the circumferential rotation mechanism will help avoid the entanglement of the suspension ropes. At the same time, the first control rope 113 and the second control rope 108 are arranged in the non-rotating part inside the first walking mechanism 112. Similarly, the third control rope 103 is also arranged in the non-rotating part inside the second walking mechanism 105. Therefore, the rotation of the working parachute 110 will not interfere with the normal operation of the first control rope 113, the second control rope 108, and the third control rope 103. In addition, anti-twist tapes can be sequentially connected to the second suspension rope 109 to further eliminate the risk of entanglement between the second suspension rope 109 and each aerial module.

[0055] Obviously, in order to improve the output power of the system, this embodiment can adopt a parachute ladder structure, that is, multiple sets of working parachutes 110 and their driving related equipment are installed on the main cable 101 at appropriate intervals, which can achieve a multiple increase in the working and / or power generation power (the parachute ladder structure is as Figure 6 shown). In addition, since the switch of each working parachute 110 can be independently controlled, the switch states of each parachute group can also be flexibly controlled according to the aerial wind conditions and the ground working and / or power generation requirements to achieve on-demand and stable output of power (partial parachute opening states are as Figure 7 shown).

[0056] In addition, in order to achieve long-term operation of the aerial working system and real-time confirmation of the aerial environment and driving state, etc., the system should also include necessary energy replenishment units (such as small wind turbines or solar photovoltaic panels can be used to replenish energy for each electrical module in the air), as well as sensors for monitoring various states such as height, position, wind speed, wind direction, temperature and humidity, and necessary communication modules, which will not be elaborated here.

[0057] Embodiment 2

[0058] This embodiment provides a high-altitude wind energy working system for driving fixed open and closed working parachutes. The system includes a main cable towed at a certain angle by a mooring device, and the other end of the main cable is connected to ground working and / or power generation equipment. At least one working parachute is installed on the main cable, and the main cable passes through the orifice at the top of the working parachute, and the shape of the working parachute adopts a configuration similar to that of a drag-type parachute.

[0059] Each working parachute is equipped with three drives, namely the first drive, the second drive and the third drive. The first drive is fixedly installed on the main cable at an appropriate position above the opening of the parachute top, the third drive is fixedly installed on the main cable at an appropriate position below the working parachute, and the second drive is fixedly installed on the main cable at an appropriate position between the first drive and the third drive and biased toward the parachute top.

[0060] A first walking mechanism is arranged between the first drive and the second drive, and the first walking mechanism freely slides up and down on the main cable through the built-in pulley. The periphery of the first walking mechanism includes a flange that can rotate in the circumferential direction as a rotating mechanism, and the other ends of several first parachute ropes uniformly arranged around the top opening of the power parachute are uniformly attached to the flange. When the first walking mechanism slides on the main cable in a controlled manner, it can drive the parachute top to move together.

[0061] The sliding position of the first walking mechanism is controlled by the first drive and the second drive. Exemplarily, the sliding position of the first walking mechanism is determined by the first control rope and the second control rope controlled by the first drive and the second drive. The first control rope connects the first drive and the first walking mechanism, and the second control rope connects the second drive and the first walking mechanism. The first drive and the second drive control the retraction and release of the first control rope and the second control rope respectively. When the first drive releases the first control rope and the second drive retracts the second control rope, the first walking mechanism will drive the umbrella top downward; when the first drive retracts the first control rope and the second drive releases the second control rope, the first walking mechanism will drive the umbrella top upward.

[0062] A locking mechanism is fixedly arranged on the main cable at an appropriate position above the third drive, and the locking mechanism and the second traveling mechanism can be locked or separated. After the second traveling mechanism is separated from the locking mechanism, it can slide freely up and down on the main cable through the built-in pulley. The periphery of the second traveling mechanism includes a flange that can rotate in the circumferential direction as a rotating mechanism, and the other ends of several second parachute ropes uniformly arranged around the parachute of the power parachute are evenly attached to the flange. The second traveling mechanism is also connected to the third drive through a third control rope.

[0063] During the opening stage of the power parachute, the second walking mechanism is tightly connected with the locking mechanism, and the tension transmitted by the second parachute rope is transmitted to the locking mechanism, and then to the main cable, so as to pull the ground equipment to do work or generate electricity; during the closing stage of the power parachute, the second walking mechanism is controlled to separate from the locking mechanism, and at the same time the third drive releases the third control rope. At this time, the second walking mechanism will slide up a distance along the main cable driven by the residual tension of the second parachute rope; during the resetting stage, the third drive pulls back the second walking mechanism and tightly connects it with the locking mechanism again by recovering the third control rope.

[0064] The operation process of the high altitude wind energy system in this embodiment can be referred to Figures 1 to 7 :

[0065] 1) Figure 2 What is shown is the initial state of ascending or the state of the power generation system when the cut-in wind speed is not reached. At this time, the mooring device 115 towes the main cable 101 to hover in the air at a certain angle, and at least one power generation parachute 110 and a set of driving devices are installed on the main cable 101. Among them, the second traveling mechanism 105 and the locking mechanism 104 are in a locked state, and the first drive 114 and the second drive 107 pull the first traveling mechanism 112 to a preset position on the main cable 101 by simultaneously controlling the first control rope 113 and the second control rope 108.

[0066] 2) When the mooring device lifts each airborne device to the preset lower limit altitude and the wind speed reaches the cut-in wind speed, the power generation parachute 110 will be unfolded by the wind and present the Figure 1 shown parachute-opening and wind-catching state. The power generation parachute 110 is stressed by the wind, and the huge pulling force generated by the wind energy is transmitted to the second traveling mechanism 105 through several second parachute ropes 109, and then transmitted to the main cable 101 through the locking mechanism 104 fixed on the main cable 101, and then the main cable 101 pulls the device on the ground that has been switched to the power generation and / or power generation mode to generate power or perform work.

[0067] 3) When the airborne power generation system runs to the upper limit altitude, the power generation parachute 110 will be controlled to close the parachute. The specific process is as follows: The third drive 102 (for example, through a small winch or similar device) releases the third control rope 103, and the locking mechanism 104 releases the buckle. At this time, the second traveling mechanism 105 will drive the third control rope 103 to quickly ascend along the main cable 101 under the drive of the pulling force of the second parachute rope 109. At the same time, under the action of the airborne wind force, the parachute surface of the power generation parachute 110 will quickly fold upward and lose the ability to catch the wind. The limit buffer mechanism 106 below the second drive 107 is used to prevent the second traveling mechanism from hitting the second drive 107 due to inertia. The effect at the moment of closing the parachute is as shown in Figure 3 shown.

[0068] 4) Next, the second drive 107 (e.g., through a small winch or similar device) initiates the action of pulling the second control rope 108, and at the same time, the first drive 114 (e.g., through a small winch or similar device) cooperates to release the first control rope 113. The first traveling mechanism 112 is pulled by the second control rope 108 and, through the first guy rope 111, pulls the working parachute 110 in the folded state along the main cable 101 downward until the apex of the working parachute 110 reaches near the second drive 107. At the same time, as the working parachute 110 basically loses its wind-catching ability due to folding, the second traveling mechanism 105 loses the tension of the second guy rope 109 and descends under the action of gravity and the traction of the third drive 102 through the third control rope 103, and locks with the locking mechanism 104 again to achieve reset. During the reset process of the second traveling mechanism 105, since the working parachute 110 continuously remains in the folded state and loses its wind-catching ability, the ground system switches to the restoration mode, and only a little energy is required to pull the entire aerial working system back to the lower altitude limit through the main cable 101 to prepare for the next ascent. The specific process effect diagram is as shown in Figure 4 shown.

[0069] 5) When the aerial working system returns to the preset lower altitude limit again, the ground system stops recovering the main cable 101 and switches to the working and / or power generation mode. The first drive 114 pulls the first control rope 113 and drags the first traveling mechanism 112 upward along the main cable 101, while the second drive 107 cooperates to release the second control rope 108. As the apex of the working parachute 110 is pulled upward along the main cable 101 by the first traveling mechanism 112, the inside of the working parachute 110 gradually becomes a straw hat-shaped windward space and opens under the action of the wind. At this time, with the assistance of the wind force at the apex of the parachute, the first drive 114 only needs to consume a little energy to pull the first traveling mechanism 112 to the preset position on the main cable 101. The working parachute 110 thus successfully completes the opening action and captures the strong aerial wind again, which is transmitted to the main cable 101 to drive the ground equipment to start the next working and / or power generation cycle.

[0070] In this embodiment, circumferentially rotating flange mechanisms are provided around the first traveling mechanism 112 and the second traveling mechanism 105, and the first umbrella rope 111 and the second umbrella rope 109 are respectively attached to the flange mechanisms. When the working umbrella 110 is unevenly stressed and rotates along the main cable 101 in the air, the circumferential rotation mechanism will help to avoid the entanglement of the umbrella ropes. At the same time, the first control rope 113 and the second control rope 108 are arranged in the non-rotating part inside the first traveling mechanism 112. Similarly, the third control rope 103 is also arranged in the non-rotating part inside the second traveling mechanism 105. Therefore, the rotation of the working umbrella 110 will not interfere with the normal operation of the first control rope 113, the second control rope 108, and the third control rope 103. In addition, anti-twist tapes can be sequentially connected to the second umbrella rope 109 to further eliminate the risk of entanglement between the second umbrella rope 109 and each aerial module.

[0071] Obviously, in order to improve the output power of the system, this embodiment can adopt an umbrella ladder structure, that is, multiple groups of working umbrellas 110 and their driving related devices are installed on the main cable 101 at appropriate intervals, so as to achieve a multiple increase in the power of doing work and / or generating electricity (the umbrella ladder structure is as Figure 6 shown). In addition, since the switch of each working umbrella 110 can be independently controlled, the switch states of each umbrella group can also be flexibly controlled according to the aerial wind conditions and the ground working and / or power generation requirements, so as to achieve on-demand output and stable output of power (partial umbrella opening states are as Figure 7 shown).

[0072] In a more preferred solution, in order to minimize the running distance of the first control rope 113 and the second control rope 108 as much as possible, and at the same time facilitate the storage of the working umbrella 110 when it is recovered to the ground and avoid excessive friction with the ground in the free state, a folding rope control mechanism 116 can also be bound to the first traveling mechanism 112, and several folding ropes 117 (at least 4) are evenly installed along the meridian direction on the inner side of the umbrella surface to realize the folding control of the umbrella surface when closing the umbrella.

[0073] Figure 8 FIG. is a schematic diagram of the installation position of the folding rope control mechanism 116. This folding rope control mechanism is preferably bound to the first traveling mechanism 112 and can slide up and down on the main cable 101 synchronously with the first traveling mechanism 112.

[0074] Figure 9 FIG. is a schematic diagram of the arrangement of the folding ropes 117, where Figure 9 (a) shows the effect before folding, Figure 9(b) shows the effect after folding (8 folding ropes). One end of the folding rope 117 is fixed to the edge of the opening at the top of the working umbrella 110, then passes through several limiting rings outward along the inner warp of the working umbrella 110 in sequence, and finally connects to the folding rope control mechanism 116. The folding rope control mechanism 116 (which can adopt a small winch or a similar device) can tighten or release all the folding ropes 117 simultaneously. As can be seen from Figure 9 (b), after the umbrella surface is folded, the windward area (or projected area) of the umbrella cloth is greatly reduced, which is very beneficial for storage.

[0075] In this embodiment, by using the folding rope control mechanism 116, the movement distance of the first walking mechanism 112 can also be reduced, and the reliability of control can be improved. As Figure 10 shown, at the upper limit altitude, after the working umbrella 110 is turned over by the wind, the folding rope control mechanism 116 is immediately started to fold the umbrella surface. At this time, the second umbrella rope 109 is almost equivalent to recycling about the distance of the radius of a working umbrella 110 in advance. Therefore, the second walking mechanism 105 can synchronously move downward by about the distance of the radius of the working umbrella 110. Therefore, the distance that the first walking mechanism 112 originally needed to move downward is also reduced synchronously, and the second walking mechanism 105 and the locking mechanism 104 can be re-connected in place. Moreover, the lengths of the second control rope 108 and the first control rope 113 are reduced synchronously, and the installation distance between the first drive 114 and the second drive 107 is also shortened synchronously. This is extremely beneficial to improving the reliability of the system operation. In addition, since a certain wind-catching effect will be formed when the umbrella surface is folded, during the stage of re-opening the umbrella, as long as the folding rope control mechanism 116 releases the folding rope 117, the umbrella surface can be blown open by the wind, further reducing the energy consumed by the first drive 114 to lift the first walking mechanism 112.

[0076] In addition, in order to achieve the long-term operation of the aerial work system and the real-time confirmation of the aerial environment and driving state, etc., the system should also include necessary energy replenishment units (such as small wind turbines or solar photovoltaic panels can be used to replenish energy for each electrical module in the air), as well as sensors for monitoring various states such as altitude, position, wind speed, wind direction, temperature and humidity, and necessary communication modules, etc., which will not be elaborated here.

[0077] The above-described embodiments and application examples are only exemplary descriptions of the present disclosure, and do not limit the scope of the present disclosure. Without departing from the design spirit of the present disclosure, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present disclosure shall fall within the protection scope determined by the present disclosure.

Claims

1. A high altitude wind energy system, characterized in that: It includes a main cable, a working parachute, a mooring device and a driving assembly; one end of the main cable is connected to the mooring device, and the other end is connected to the ground equipment; The main cable passes through the top opening of the working parachute, the top opening is connected to a first walking mechanism via a plurality of first parachute ropes, and the periphery of the working parachute is connected to a second walking mechanism arranged below the working parachute via a plurality of second parachute ropes; The driving assembly includes a first driving, a second driving and a third driving fixed on the main cable; the first driving and the second driving are respectively arranged above and below the working parachute and connected to the first walking mechanism, and jointly control the first walking mechanism to slide up and down along the main cable; The third drive is connected to the second walking mechanism and is used to control the second walking mechanism to slide up and down along the main cable.

2. The high altitude wind energy system according to claim 1, characterized in that: The first drive and the second drive are connected to the first walking mechanism via a first control rope and a second control rope respectively. The first drive controls the retraction and extension of the first control rope, and the second drive controls the retraction and extension of the second control rope.

3. The high altitude wind energy system according to claim 2, characterized in that: The third drive is connected to the second walking mechanism via a third control rope, and the third drive controls the retraction and extension of the third control rope.

4. The high altitude wind energy system according to claim 3, characterized in that: The outer peripheries of the first walking mechanism and the second walking mechanism are respectively provided with rotating mechanisms capable of circumferential rotation, and the first parachute rope and the second parachute rope are connected to the rotating mechanisms; The first and second control ropes are connected to a non-rotating portion of the first walking mechanism, and the third control rope is connected to a non-rotating portion of the second walking mechanism.

5. The high altitude wind energy system according to claim 3, characterized in that: Pulleys for traveling on the main cable are respectively arranged inside the first traveling mechanism and the second traveling mechanism.

6. The high altitude wind energy system according to claim 1, characterized in that: The main cable is provided with a locking mechanism for locking the second traveling mechanism.

7. The high altitude wind energy system according to claim 1, characterized in that: A limiting buffer mechanism for blocking the second walking mechanism is provided below the second drive.

8. The high altitude wind energy generating system according to any one of claims 1 to 7, characterized in that: A plurality of folding ropes are arranged on the inner side of the working parachute along the meridian direction, one end of the folding rope is connected to the edge of the parachute top opening, and the other end is connected to a folding rope control mechanism; the folding rope control mechanism is arranged on the main cable and is used to control the retraction and extension of the folding rope.

9. The high altitude wind energy system according to claim 8, characterized in that: The folding rope control mechanism is connected to the first traveling mechanism.

10. The high altitude wind energy system according to claim 8, characterized in that: The inner side of the working parachute is provided with a plurality of limiting rings along the warp direction, and the folding rope is passed through the limiting rings.

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