Working umbrella braking device and high-altitude wind energy working system

Abstract

The invention relates to an acting umbrella braking device and a high-altitude wind energy acting system.The acting umbrella braking device is arranged in a driving device used for driving an acting umbrella of the high-altitude wind energy acting system, the driving device is provided with a driving rope, and the acting umbrella is controlled to slide up and down along a main cable through traction of a retracting and releasing mechanism to the driving rope; the braking device comprises a power generation motor module, the power generation motor module is connected with the retracting and releasing mechanism and a control module used for controlling starting and stopping of the power generation motor module, and the power generation motor module provides torque in the direction opposite to that of the retracting and releasing mechanism. Compared with the design that a common climbing nail type or friction type driving mechanism cannot generate enough parachute top opening impact force, the adjustable resistance which is enough to delay parachute top impact is generated through the braking device, the resistance can effectively slow down the rising process of the parachute top, and huge instantaneous impact on related equipment in the air in the parachute opening process is reduced.

Description

Technical Field

[0001] This application relates to the field of high-altitude wind energy technology, specifically to a power umbrella braking device and a high-altitude wind energy power generation system. Background Technology

[0002] High-altitude wind energy generally refers to wind energy at altitudes above 300 meters. The average wind speed increases with altitude, making it a clean energy source with enormous potential for utilization. Patent application CN200910190150.2 describes an umbrella-shaped high-altitude wind energy system, comprising a main cable guided by a helium balloon, etc., with at least one working umbrella mounted on the main cable. The working umbrella includes two actuators, upper and lower, that can move freely on the main cable. The upper actuator moves the umbrella top up and down on the main cable. The umbrella's circumference is connected to the lower actuator via several parachute lines. The lower actuator is associated with a clamp fixed to the main cable and can be controlled to connect and disconnect from the clamp. When the umbrella opens, the lower actuator connects to the clamp. The high-altitude wind force on the umbrella surface is transmitted to the lower actuator via the parachute lines, and then to the main cable via the clamp. The main cable then pulls the ground system to perform work or generate electricity. When the airborne system reaches its maximum altitude, it automatically closes the parachute. At this point, the lower drive and the ferrule separate, and the system ascends rapidly for a short distance. The working parachute will then fold due to wind. Simultaneously, the upper drive descends and pushes the lower drive to reconnect with the ferrule, while the ground system lowers the airborne module to its minimum altitude. Next, the upper drive ascends along the main cable to the predetermined position, and the system reopens the parachute.

[0003] In the umbrella-ladder combined high-altitude wind power generation technology, the working umbrella is in a folded state during the reset process. During the subsequent opening, the upper drive leads the umbrella top upwards along the main cable. After ascending a certain distance, the parachute lines around the umbrella begin to bear force, pulling the umbrella circumference back, and then the umbrella surface begins to catch the wind from the outside in. As the upper drive and umbrella top continue to rise, the umbrella surface begins to experience significant wind resistance. In particular, the umbrella top, subjected to the upward pull from the surrounding surface, rapidly pushes the upper drive upwards, instantly completing the opening of the working umbrella.

[0004] The upper drive mechanism, which moves along the main cable, typically employs methods such as climbing spikes or friction. However, these methods are insufficient to counteract the immense upward thrust generated by the canopy tip during the later stages of opening, making the opening process uncontrollable. To prevent the upper drive motor from burning out due to overspeed, a clutch mechanism is usually added to the design, inevitably increasing the complexity of the system structure and control. Furthermore, the rapid ascent and instantaneous opening of the canopy tip generates a very large instantaneous impact on the canopy tip, canopy surface, parachute lines, and the retaining structure connected to the other end of the parachute lines. This impact poses a serious challenge to the structural safety of the system. Summary of the Invention

[0005] Based on the aforementioned technical problems, the purpose of this application is to reduce the impact risk of the power umbrella in the high-altitude wind energy power system during the opening process.

[0006] To achieve the above objectives, this application provides a power umbrella braking device, which is installed in a power umbrella driving device for driving a high-altitude wind energy power system. The driving device is provided with a driving rope, and the power umbrella slides up and down along the main cable by traction of the driving rope through a take-up and release mechanism. The braking device includes a generator module, which is connected to the retraction mechanism and a control module for controlling the opening and closing of the generator module. The generator module provides torque in the opposite direction to the retraction mechanism.

[0007] Preferably, the control module includes a generator controller and a drive controller, which are respectively connected to a power source, and the generator controller is connected to the generator motor module; The drive controller is connected to the drive motor module, the drive motor module is connected to the clutch module, the clutch module is connected to the gearbox module, and the gearbox module is connected to the take-up and release mechanism.

[0008] More preferably, a gearbox module is provided between the generator module and the take-up and take-down mechanism, and a braking mechanism is provided between the gearbox module and the take-up and take-down mechanism. The braking mechanism is connected to a brake control module for controlling the opening and closing of the braking mechanism.

[0009] Preferably, the generator module and the drive motor module are combined to form a drive-generator module, the gearbox module is disposed between the clutch module and the retraction mechanism, the drive-generator module is disposed between the clutch module and the control module, the control module is connected to the power supply, and the control module is used to control the mode switching in the drive-generator module.

[0010] More preferably, the retraction mechanism is connected to the braking mechanism, and the braking mechanism is connected to a brake control module for controlling the opening and closing of the braking mechanism.

[0011] Preferably, the driving device includes a first driver, a second driver, a first walking mechanism, and a second walking mechanism, and the power umbrella braking device is disposed on the second driver; The first driver and the second driver are fixedly mounted on the main cable, which passes through the top of the working umbrella and is connected at one end to the air guidance and balancing module and at the other end to the ground module; the first driver and the second driver jointly pull a drive rope parallel to the main cable, and the drive rope is equipped with a traction element; The first walking mechanism is located at the top of the umbrella and can move up and down along the main cable; the second walking mechanism is connected to the circumference of the working umbrella through several umbrella circumference ropes and can move up and down along the main cable; the main cable is also provided with a limiting mechanism for restricting the movement of the second walking mechanism. The first driver and the second driver are respectively provided with a winding and releasing mechanism for winding and releasing the driving rope. When the driving rope is pulled, the traction member drives the first walking mechanism or the second walking mechanism to walk along the main cable under the pull of the driving rope.

[0012] More preferably, the top of the working umbrella is connected to the first walking mechanism via several umbrella top ropes; The first walking mechanism and the second walking mechanism are respectively mounted on the main cable. The first walking mechanism and the second walking mechanism include a sliding walking part, which is used to walk along the main cable.

[0013] Preferably, the first walking mechanism and the second walking mechanism further include a circumferential rotating mechanism, which is capable of rotating around the circumference of the first walking mechanism and the second walking mechanism; The umbrella top cord is connected to the circumferential rotation mechanism of the first walking mechanism, and the umbrella circumferential cord is connected to the circumferential rotation mechanism of the second walking mechanism. The limiting mechanism restricts the movement of the second walking mechanism by means of a card.

[0014] More preferably, the traction member includes a first stop and a second stop, the first stop being located above the first traveling mechanism, and the second stop being located between the first traveling mechanism and the second traveling mechanism; or The traction component includes a first stop, a second stop, and a third stop. The first stop is located above the first traveling mechanism, the second stop is located between the first traveling mechanism and the second traveling mechanism, and the third stop is located between the second stop and the first traveling mechanism. To achieve the above objectives, this application also provides a high-altitude wind energy utilization system, which uses the power-generating umbrella braking device described in any of the preceding claims.

[0015] The solution claimed in this application achieves the following beneficial effects: Compared to ordinary climbing or friction drive mechanisms that cannot generate sufficient force to mitigate the opening impact of the parachute top, this application generates an adjustable resistance through a braking device that is sufficient to delay the impact of the parachute top. This resistance can effectively slow down the ascent process of the parachute top and reduce the huge instantaneous impact on various related equipment in the air during the opening process.

[0016] Reducing or eliminating the risk of instantaneous impact helps optimize the safety factor design of the airborne system's mechanical structure, improves reliability, and effectively reduces the weight of the airborne system, thereby increasing the net output power of the airborne power system. Furthermore, converting the parachute top impact force into electrical energy through a regenerative braking mechanism helps optimize and improve the endurance of the airborne power modules. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0018] Figure 1 A schematic diagram of the main components of a system that utilizes high-altitude wind energy.

[0019] Figure 2 A schematic diagram of the instantaneous state of a high-altitude wind energy power system with three blocks closing its umbrella.

[0020] Figure 3 A schematic diagram showing the reset completed state of a high-altitude wind energy system with three stops.

[0021] Figure 4 A schematic diagram of the process of reopening the umbrella of a high-altitude wind energy system with three blocks.

[0022] Figure 5 A schematic diagram of a high-altitude wind energy system that utilizes a combination of umbrellas and ladders.

[0023] Figure 6 A schematic diagram of the umbrella-opening state of a high-altitude wind energy power system with two baffles.

[0024] Figure 7 A schematic diagram of the instantaneous state of a high-altitude wind energy system with two baffles closing its umbrella.

[0025] Figure 8 This is a schematic diagram showing the reset completed state of a high-altitude wind energy system with two baffles.

[0026] Figure 9 A schematic diagram of the process of reopening the umbrella of a high-altitude wind energy system with two baffles.

[0027] Figure 10a and 10b This is a schematic diagram of the force components of the first traveling mechanism along the main cable direction.

[0028] Figure 11 and 12The diagram shows the first traveling mechanism applying an upward pulling force to the drive rope through the first stop.

[0029] Figure 13a A schematic diagram of a power umbrella braking device that is independently configured for the drive motor and the generator motor.

[0030] Figure 13b A schematic diagram of a power umbrella braking device that combines the drive motor and the generator motor into one unit.

[0031] Figure label: 100-Airborne guidance and balancing module; 200-Main cable; 300-First actuator; 310-Second actuator; 400-First stop; 500-First walking mechanism; 410-Second stop; 420-Third stop; 510-Second walking mechanism; 600-Power umbrella; 610-Umbrella cords; 700-Drive cord; 800-Clip sleeve. Detailed Implementation

[0032] To make the objectives, technical solutions, and beneficial effects of the embodiments in this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0033] <Example 1> This embodiment provides a braking device for a power umbrella. This braking device is installed in the drive unit of the power umbrella used to drive a high-altitude wind power system. The drive unit has a drive rope, and the power umbrella slides up and down along the main cable by traction control of the drive rope through a take-up and release mechanism. The braking device includes a generator module, which is connected to both the take-up and release mechanism and a control module for controlling the opening and closing of the generator module. The generator module provides torque in the opposite direction to that of the take-up and release mechanism.

[0034] In a preferred embodiment, the control module includes a generator controller and a drive controller, both connected to a power source. The generator controller is connected to a generator motor module. The drive controller is connected to a drive motor module, which is connected to a clutch module. The clutch module is connected to a gearbox module, which is connected to the retraction / release mechanism. In an exemplary structure, a gearbox module is provided between the generator motor module and the retraction / release mechanism, and a braking mechanism is provided between the gearbox module and the retraction / release mechanism. The braking mechanism is connected to a brake control module for controlling the opening and closing of the brake mechanism.

[0035] In another preferred embodiment, the generator module and the drive motor module are combined to form a drive-generator module. The gearbox module is positioned between the clutch module and the retraction / extension mechanism. The drive-generator module is positioned between the clutch module and the control module. The control module is connected to a power source and is used to control mode switching within the drive-generator module. The retraction / extension mechanism is connected to a brake mechanism, which is connected to a brake control module for opening and closing the brake mechanism.

[0036] In a preferred embodiment, the drive unit includes a first driver, a second driver, a first walking mechanism, and a second walking mechanism. The first driver is located above the top of the working umbrella, and the second driver is located below the working umbrella. The working umbrella braking device is mounted on the second driver. The first and second drivers are fixedly mounted on the main cable, which passes through the top of the working umbrella and is connected at one end to an aerial guidance and balancing module and at the other end to a ground module. The first and second drivers jointly pull a drive rope parallel to the main cable, and the drive rope is equipped with a traction element.

[0037] The first walking mechanism is located at the top of the umbrella and can move up and down along the main cable; the second walking mechanism is connected to the circumference of the working umbrella through several umbrella circumference ropes and can move up and down along the main cable; the main cable is also provided with a limiting mechanism to restrict the movement of the second walking mechanism.

[0038] The first and second drivers are respectively equipped with mechanisms for retracting and releasing the drive rope, and a power umbrella brake device is connected to the retracting and releasing mechanism of the second driver. When the drive rope is pulled, the traction member drives the first or second traveling mechanism to travel along the main cable under the pull of the drive rope.

[0039] In a preferred embodiment, the top of the working umbrella is connected to the first traveling mechanism via several umbrella top ropes. The first traveling mechanism and the second traveling mechanism are respectively mounted on the main cable. The first traveling mechanism and the second traveling mechanism include a sliding traveling part, which is used to travel along the main cable.

[0040] In a more preferred embodiment, the first and second traveling mechanisms further include a circumferential rotating mechanism capable of rotating around the circumference of both mechanisms. The umbrella top cords are connected to the circumferential rotating mechanism of the first traveling mechanism, and the umbrella circumference cords are connected to the circumferential rotating mechanism of the second traveling mechanism. A limiting mechanism restricts the movement of the second traveling mechanism via a locking mechanism.

[0041] In a preferred embodiment, the traction component includes a first stop and a second stop, the first stop being located above the first traveling mechanism and the second stop being located between the first traveling mechanism and the second traveling mechanism; or The traction component includes a first stop, a second stop, and a third stop. The first stop is located above the first traveling mechanism, the second stop is located between the first traveling mechanism and the second traveling mechanism, and the third stop is located between the second stop and the first traveling mechanism.

[0042] <Example 2> This embodiment, in conjunction with a specific high-altitude wind power generation system, provides a clearer description of the power-generating umbrella braking device in Embodiment 1.

[0043] The high-altitude wind power generation system in this embodiment mainly consists of a ground module, a main cable 200, and a power generation umbrella 600. One end of the main cable 200 is connected to the aerial guidance and balancing module 100, and the other end is connected to the ground module, such as a ground power generation or power generation device.

[0044] The aerial guidance and balancing module 100 can be composed of devices such as helium balloons, airships, or balancing parachutes, with the main traction cable 200 at its lower part. The main functions of the aerial guidance and balancing module 100 are: to provide initial lift during the initial stage of system ascent; and to guide the aerial system to maintain a suitable angle of attack during subsequent operational phases. The main traction cable 200 serves as the mounting carrier for all other aerial equipment. When stressed, the main traction cable 200 pulls ground equipment to perform work or generate electricity. In recovery or reset mode, the main traction cable 200 uses a ground winch to pull the aerial system back to the ground or to a preset lower altitude.

[0045] The main cable 200 passes through the top opening of the working umbrella 600. Several top parachute ropes (not shown in the attached diagram) are evenly attached to the edge of the top opening of the working umbrella 600. The other end of the top parachute ropes is connected to the first traveling mechanism 500. The first traveling mechanism 500 can slide freely up and down along the main cable 200, meaning it can drive the top of the working umbrella 600 to move along the main cable 200. The circumference of the working umbrella 600 is connected to the second traveling mechanism 510 via several circumferential parachute ropes 610. The second traveling mechanism 510 can slide freely up and down along the main cable 200. The main cable 200 is also equipped with a limiting mechanism to restrict the movement of the second traveling mechanism 510.

[0046] At appropriate positions on the main cable 200, a first driver 300 and a second driver 310 are fixedly installed, with the second driver 310 installed below the first driver 300. The first driver 300 and the second driver 310 work together to pull a drive rope 700 arranged parallel to the main cable 200. The drive rope 700 is equipped with a traction member, and the first driver 300 and the second driver 310 are respectively equipped with a winding and unwinding mechanism (such as a small winch) for winding and unwinding the drive rope 700. When the drive rope 700 is pulled, the traction member drives the first traveling mechanism 500 or the second traveling mechanism 510 to slide along the main cable 200 under the pull of the drive rope 700.

[0047] In a preferred embodiment, a first stop block 400, a third stop block 420, and a second stop block 410 are fixedly installed at appropriate positions on the drive rope 700, from top to bottom, as traction components. The first stop block 400 is located above the first traveling mechanism 500, the second stop block 410 is located between the first and second traveling mechanisms 500, and the third stop block 420 is located between the second stop block 410 and the first traveling mechanism 500. All three stops can slide freely up and down synchronously along the main cable 200 under the traction of the drive rope 700. The first traveling mechanism 500, pushed by the first stop block 400 or the third stop block 420, can slide freely down or up along the main cable 200, while the second traveling mechanism 510, pushed by the second stop block 410, can slide downwards.

[0048] In a preferred embodiment, the first traveling mechanism 500 and the second traveling mechanism 510 are respectively mounted on the main cable 200. Each traveling mechanism includes a sliding traveling section and a circumferential rotating mechanism. The sliding traveling section is used to travel along the main cable 200. The top paracord of the working umbrella 600 is evenly attached to the circumferential rotating mechanism of the first traveling mechanism 500, while the perimeter paracords 610 are evenly attached to the circumferential rotating mechanism of the second traveling mechanism 510. Simultaneously, the drive rope 700 passes through the non-rotating portions inside both the first and second traveling mechanisms 500. This preferred design completely avoids the problem of the drive rope 700 entangled with the top and perimeter paracords 610.

[0049] In a preferred embodiment, the limiting mechanism restricts the movement of the second walking mechanism 510 by means of a locking mechanism. In an exemplary structure, a locking sleeve 800 is fixedly installed on the main cable 200 at an appropriate position above the second drive 310, and a locking head is provided below the second walking mechanism 510, which can be controlled to connect or disconnect from the locking sleeve 800.

[0050] In this embodiment, when the umbrella is open, the locking head and the locking sleeve 800 below the second walking mechanism 510 are connected. The working umbrella 600, acting as the windward side, captures the immense wind force and transmits it to the second walking mechanism 510 via the umbrella lines 610. This force is then transmitted to the main cable 200 through the locking head and locking sleeve 800 connector, causing the main cable 200 to drive ground equipment to perform work or generate electricity. For specific details, please refer to... Figure 1 As shown.

[0051] When the air-guided balancing module 100 reaches the preset altitude limit, the system will switch to parachute-closed mode. In parachute-closed mode, the clasp 800 receives the parachute-close command from the ground module and immediately disconnects the mechanical connection with the clasp of the second travel mechanism 510. The second travel mechanism 510 will rapidly ascend under the tension of the parachute lines, reaching the position of the second stop 410. At the same time, the working parachute 600, no longer restrained by the parachute lines 610, will rapidly fold under the influence of the wind, thus losing its wind-catching ability. (Reference to the state at the moment of parachute closure completion) Figure 2 As shown.

[0052] Next, the system switches to reset mode. In reset mode, the first actuator 300 and the second actuator 310 work together to pull down the drive rope 700 according to the reset command. The first actuator 300 is in release mode, and the second actuator 310 is in retraction mode. At this time, the first stop block 400 slides down the main cable 200 following the drive rope 700, pushing the first traveling mechanism 500 to move the umbrella top down synchronously on the main cable 200. Simultaneously, the second stop block 410 also pushes the second traveling mechanism 510 down the main cable 200 until the second traveling mechanism 510 reaches the position of the retaining sleeve 800 and reconnects and locks with it. The reset process is then complete.

[0053] Figure 3 The diagram illustrates the reset process. Throughout the reset, the canopy of the power parachute 600 remains folded, allowing the second actuator 310 to reset the second traveling mechanism 510 with minimal power consumption. In reset mode, the ground winch mechanism, with the parachute closed, consumes only a small amount of energy to simultaneously pull the entire aerial system back to the preset lower altitude limit.

[0054] Next, the system will switch back to the parachute opening mode. In this mode, the first actuator 300 and the second actuator 310 work together to pull the drive rope 700 upwards according to the opening command. The first actuator 300 is in rope-retracting mode, and the second actuator 310 is in rope-releasing mode. At this time, the third stop 420 will slide upwards on the main cable 200 following the drive rope 700, and after sliding a certain distance, it will push the first traveling mechanism 500 to move the parachute top upwards synchronously on the main cable 200. As the parachute top rises, the working parachute 600 will gradually return from its folded state to its normal state, creating a certain windward space inside. Then, driven by the wind, the working parachute will quickly open, assisting in pushing the parachute top to the designated opening position. The opening process is now complete. Figure 4The diagram shows the opening process. Next, the working umbrella 600 will capture the wind force in the air again and transmit it to the main cable 200 through the umbrella ropes 610, the second walking mechanism 510, and the ferrule 800. The main cable 200 will then pull the ground equipment to perform work or generate electricity.

[0055] During the re-opening process after resetting, if the wind speed is low, in the early stage of opening, the first walking mechanism 500 is mainly pushed upward by the third stop 420. Obviously, before opening, the first driver 300 needs to overcome the weight of moving parts, including the canopy, the first walking mechanism 500, the stop, the drive rope 700, and the friction with the main cable 200, together with the wind resistance of the canopy cloth, in order to pull the top of the canopy upward.

[0056] To simplify the force analysis, this embodiment only considers the component forces of the first traveling mechanism 500 along the main cable direction. As shown in Figure 10(a), the resultant force of the first traveling mechanism 500 rising along the main cable 200 direction is mainly the driving force F generated by the first driver 300. 驱动 The component of the wind resistance F generated by the wind resistance on the umbrella surface along the main cable 200. 风阻分力 The two forces mentioned above need to overcome two main resistances: the component of gravity G in the downward direction along the main cable 200. 重力分力 And the frictional force f between each active module and the main cable 200. 摩擦 .

[0057] When F 驱动 +F 风阻分力 G 重力分力 +f 摩擦 At this time, the first traveling mechanism 500 will lead the umbrella top to rise along the main cable. As the umbrella top rises to a certain level, the working umbrella 600 begins to open to catch the wind, at which point the wind resistance F transmitted from the umbrella top to the first traveling mechanism 500... 风阻分力 It will be significantly enhanced, even surpassing F. 驱动 And G 重力分力 and f 摩擦 There will be no significant change, as shown in Figure 10(b). At this point, the first traveling mechanism 500 may disengage from the third stop 420, accelerate upwards on the main cable 200, and reach the first stop 400, applying an upward pulling force to the drive cable 700 through the first stop 400. Its effect is illustrated in the diagram below. Figure 11 and Figure 12 As shown.

[0058] If the first traveling mechanism 500 and the upward movement of the umbrella top are not controlled at this point, the umbrella top will rapidly surge upwards, and the working umbrella 600 will instantly open. In publicly available solutions such as climbing spike-type or friction-type drives, a clutch is generally installed inside the drive mechanism to prevent the rapid surge of the umbrella top from damaging the motor. Simultaneously, due to the excessive wind resistance experienced by the umbrella top, the umbrella top structure will also be subjected to extremely high surge tension, posing a significant challenge to the safety of the umbrella top structure.

[0059] To mitigate the risks caused by the rapid impact of the umbrella top, a power umbrella braking device can be installed in the second actuator 310. Figure 13 shows two main structural forms of the improved second actuator 310.

[0060] Figure 13(a) is used as an example for illustration. The second actuator 310 mainly consists of a drive motor, drive controller, clutch, gearbox, rope receiving roller, drive rope, and battery. The gearbox is located between the clutch and the rope receiving roller, and the drive motor is located between the clutch and the drive controller. The drive controller is connected to the battery. During the reset process, the drive controller controls the drive motor and, through the gearbox, controls the rope receiving roller to retract the drive rope, resetting the second walking mechanism 510 and reconnecting it to the locking sleeve 800. During the reopening process, the drive motor, through the gearbox, controls the rope receiving roller, coordinating with the operation of the first actuator 300 to synchronously release the drive rope 700. The battery supplies power to the drive motor. If the drive rope 700 releases too quickly, to avoid burning out the drive motor, the connection between the gearbox drive shaft and the drive motor can be disconnected via the clutch.

[0061] In the optimized second drive 310, a braking mechanism (such as an existing device like a brake disc) and a generator motor are added. The braking mechanism is located between the rope drum and the gearbox, and is also connected to a brake controller. The generator motor is located between the gearbox and the generator controller, and the generator controller is connected to a battery. When the wind resistance component F acting on the umbrella top... 风阻分力 When the wind speed increases significantly, the rotational speed of the cord-holding drum will also increase significantly. When the drum speed exceeds a preset limit, the generator controller intervenes, converting the kinetic energy of the drum's rotation into electrical energy stored in the battery to power the relevant power modules. Simultaneously, the generator provides a reverse torque, which acts on the cord-holding drum, generating a downward adjustable resistance on the drive rope 700. This delays the rise of the umbrella top as needed, preventing a rapid surge and achieving a "soft opening" effect. If the generator speed reaches a set safe speed due to excessive wind speed, a braking mechanism can be triggered. The braking mechanism works in conjunction with the generator to generate the required adjustable resistance, achieving controllable and safe umbrella opening. The braking mechanism in this embodiment can be of various forms, such as friction, hydraulic, or electromagnetic, depending on the specific application requirements; no limitation is made.

[0062] In the preferred embodiment, to increase output power, the windward area of ​​the canopy can be increased as much as possible while ensuring the material strength of the canopy fabric and ropes and the driving capability of the actuator. At the same wind speed, the system output power is directly proportional to the effective windward area of ​​the canopy.

[0063] In a more optimized design, to increase and flexibly adjust the system's output power, multiple sets of power umbrellas and their corresponding drive devices can be installed on the main cable 200, forming a parachute ladder assembly. Each power umbrella in the ladder assembly can be flexibly opened and closed according to wind conditions and ground-based power generation / work demands, achieving a multiplication and flexible adjustment of output power. An example of the parachute ladder assembly built using this design is provided for reference. Figure 5 As shown, two or more drive and power umbrella modules are installed at appropriate intervals on the main cable 200.

[0064] In addition, the aerial portion of the power-generating system in this embodiment also includes necessary sensor modules, wireless signal transceiver modules, and additional wind and / or solar power generation and storage modules. The sensor modules and wireless signal transceiver modules are connected to the ground module. The sensor modules are used to transmit information such as the position and attitude of the power parachute and the high-altitude environment (e.g., altitude, wind speed, wind direction). The energy storage modules can power at least the first actuator 300 and the second actuator 310. The sensor modules, wireless signal transceiver modules, and additional wind and / or solar power generation and storage modules are fixedly installed on the main cable 200 near the first actuator 300 and / or the second actuator 310. The specific installation can be done using any existing method, which will not be elaborated here.

[0065] In this embodiment, two actuators are fixedly mounted on the main cable. The first and second actuators pull the drive cable, which in turn drives the walking mechanism to move along the main cable via a traction member fixed to the drive cable. This separates the necessary walking parts and the fixed parts of the aerial control system, effectively reducing the weight of the walking device and lowering drive energy consumption. Furthermore, since the energy-consuming devices are fixed relative to the main cable and do not move with the walking mechanism, it is easier to achieve recharging for extended operation. For example, small wind turbines or solar panels fixed to the main cable near the traction mechanism can be used to recharge the actuators and other electrical equipment, meeting the requirements for long-endurance operation.

[0066] Furthermore, replacing the climbing or friction-based traveling mechanism with a free-sliding traveling mechanism significantly reduces wear on the main cable, extends its service life, and enhances safety and reliability. Moreover, the method of using a drive rope to control stops and propel the traveling mechanism simplifies the system structure, making it easier to control and maintain.

[0067] Furthermore, by setting a regenerative braking mechanism in the second drive 310, not only can the parachute opening process be controlled and the parachute top impact process be delayed to achieve "soft opening" and reduce the impact risk to related structures in the air during the opening process, but the kinetic energy of the parachute top ascent process can also be recovered and converted into storable electrical energy stored in the battery to supply the use of in-flight electrical equipment, achieving a beneficial effect of killing two birds with one stone.

[0068] <Example 3> This embodiment is a further improvement on embodiment 2. The only difference between this embodiment and embodiment 2 is that the drive motor and generator motor in the power umbrella braking device are combined into one, as shown in Figure 13(b).

[0069] During the reset phase, the motor acts as a drive motor, pulling down the drive rope 700 via the drive rope roller. This, in turn, resets the second traveling mechanism 510 via the second stop 410 on the drive rope 700, and reconnects and locks it with the retaining sleeve 800. During the re-opening process, the wind resistance component F acting on the umbrella top in the initial stage... 风阻分力 When the rope is not large, the second drive 310 only needs to cooperate with the pulling action of the first drive 300 to release the rope, or the clutch can be disengaged to allow the rope to be released freely by the rope receiving drum.

[0070] When the umbrella begins to open to catch the wind, the component of the wind resistance force F acting on the top of the umbrella is... 风阻分力 The rotational speed of the cord-holding roller will be significantly enhanced, and when it exceeds the system's preset parameters, the clutch of the second driver 310 will be set to the engaged state, and the motor will switch to power generation mode. At this time, the rotational kinetic energy of the cord-holding roller will be converted into electrical energy that can be stored in the battery by the motor to supply the relevant power modules. Simultaneously, the motor will provide a reverse torque in power generation mode. This reverse torque acts on the cord-holding roller, generating a downward adjustable resistance on the drive rope 700, which, as needed, slows down the rise of the umbrella top, preventing a rapid impact and achieving a "soft opening" effect. If the real-time wind speed is too high, causing the motor speed to reach the set safe speed, the braking mechanism can be triggered. The braking mechanism works in conjunction with the motor to generate the required adjustable resistance, achieving controllable and safe umbrella opening. The braking mechanism can take various forms, such as friction, hydraulic, or electromagnetic, depending on the specific application requirements; there are no limitations on this.

[0071] This embodiment, by coordinating the power generation and braking functions of the control braking device, can precisely provide an adjustable resistance. During parachute deployment, the adjustable resistance on the drive lines is transmitted to the first traveling mechanism through the first stop. With this resistance restraining the parachute top, the ascent process becomes controllable, and the impact forces of the parachute top on the canopy, the canopy on the parachute lines, and the parachute lines on the ferrule are greatly reduced, making the parachute deployment process safer. Simultaneously, the impact force of the parachute top can be converted into electrical energy that can be stored and used by the in-flight electrical module, further enhancing and optimizing the endurance of the in-flight system.

[0072] <Example 4> This embodiment provides a high-altitude wind energy utilization system. The difference between this embodiment and Embodiment 2 is the removal of the third stop 420; the rest of the structure is the same as in Embodiment 2. Different operating states of the high-altitude wind energy utilization system in this embodiment can be found in the appendix. Figures 5 to 9 .

[0073] In the open state, the locking head and locking sleeve 800 below the second traveling mechanism 510 are connected. The working umbrella 600, acting as the windward side, captures the immense wind force and transmits it to the second traveling mechanism 510 via the umbrella lines 610, and then to the main cable 200 via the locking head and locking sleeve 800 connector. The main cable 200, under this force, drives ground equipment to perform work or generate electricity. For specific details, please refer to [reference needed]. Figure 6 As shown.

[0074] When the air-guided balancing module 100 reaches the preset altitude limit, the system will switch to the parachute-closing mode. In parachute-closing mode, the ferrule 800 receives the parachute-closing command and immediately disconnects the mechanical connection with the ferrule of the second travel mechanism 510. The second travel mechanism 510 will rapidly ascend under the tension of the parachute lines, reaching the position of the second stop 410. At the same time, the working parachute 600, no longer restrained by the parachute lines 610, will rapidly fold under the influence of the wind, thus losing its wind-catching ability. (Reference to the state at the moment of parachute closure completion) Figure 7 As shown.

[0075] Next, the system will switch to reset mode. In reset mode, the first actuator 300 and the second actuator 310 cooperate to pull down the drive rope 700 according to the reset command. The first actuator 300 is in release mode, and the second actuator 310 is in retraction mode. At this time, the first stop 400 will slide down the main cable 200 following the drive rope 700, and push the first traveling mechanism 500 to drive the umbrella top to slide down the main cable 200 synchronously. The reset process is now complete.

[0076] Figure 8The diagram shows the reset process. Throughout the reset, the canopy of the power parachute 600 remains folded, allowing the second actuator 310 to reset the second traveling mechanism 510 with minimal power consumption. In reset mode, the ground winch mechanism consumes only a small amount of energy while the parachute is closed, simultaneously pulling the entire aerial system back to the preset lower altitude limit.

[0077] Next, the system will switch back to the parachute opening mode. In this mode, the first actuator 300 and the second actuator 310 work together to pull the drive rope 700 upwards according to the opening command, with the first actuator 300 in retracting mode and the second actuator 310 in releasing mode. At this time, the second stop 410 will slide upwards on the main cable 200 following the drive rope 700, and after sliding a certain distance, it will push the first traveling mechanism 500 to move the parachute top upwards synchronously on the main cable 200. As the parachute top rises, the working parachute 600 will gradually return from its folded state to its normal state, creating a certain windward space inside. Then, driven by the wind, the working parachute will quickly open, assisting in pushing the parachute top to the designated opening position. The opening process is now complete. Figure 9 The diagram shows the opening process. Next, the working umbrella 600 will capture the wind force in the air again and transmit it to the main cable 200 through the umbrella ropes 610, the second walking mechanism 510, and the ferrule 800. The main cable 200 will then pull the ground equipment to perform work or generate electricity.

[0078] During the re-opening process after resetting, if the wind speed is low, in the early stage of opening, the first walking mechanism 500 is mainly pushed upward by the second stop 410. Obviously, before opening, the first driver 300 needs to overcome the weight of moving parts, including the canopy, the first walking mechanism 500, the stop, the drive rope 700, and the friction with the main cable 200, together with the wind resistance of the canopy cloth, in order to pull the top of the canopy upward.

[0079] To simplify the force analysis, this embodiment only considers the component forces of the first traveling mechanism 500 along the main cable direction. As shown in Figure 10(a), the resultant force of the first traveling mechanism 500 rising along the main cable 200 direction is mainly the driving force F generated by the first driver 300. 驱动 The component of the wind resistance F generated by the wind resistance on the umbrella surface along the main cable 200. 风阻分力 The two forces mentioned above need to overcome two main resistances: the component of gravity G in the downward direction along the main cable 200. 重力分力 And the frictional force f between each active module and the main cable 200. 摩擦 .

[0080] When F 驱动 +F 风阻分力 G 重力分力+f 摩擦 At that time, the first traveling mechanism 500 will lead the umbrella top to rise along the main cable.

[0081] As the umbrella top rises to a certain level, the power umbrella 600 begins to open to catch the wind. At this point, the wind resistance F transmitted from the umbrella top to the first traveling mechanism 500... 风阻分力 It will be significantly enhanced, even surpassing F. 驱动 And G 重力分力 and f 摩擦 There will be no significant change, as shown in Figure 10(b). At this point, the first traveling mechanism 500 may disengage from the second stop 410, accelerate upwards on the main cable 200, and reach the first stop 400, applying an upward pulling force to the drive cable 700 through the first stop 400. Its effect is illustrated in the diagram below. Figure 11 and Figure 12 As shown.

[0082] If the first traveling mechanism 500 and the upward movement of the umbrella top are not controlled at this point, the umbrella top will rapidly surge upwards, and the working umbrella 600 will instantly open. In publicly available solutions such as climbing spike-type or friction-type drives, a clutch is generally installed inside the drive mechanism to prevent the rapid surge of the umbrella top from damaging the motor. Simultaneously, due to the excessive wind resistance experienced by the umbrella top, the umbrella top structure will also be subjected to extremely high surge tension, posing a significant challenge to the safety of the umbrella top structure.

[0083] To mitigate the risks caused by the rapid impact of the umbrella top, a power umbrella braking device can be installed in the second actuator 310. Figure 13 shows two main structural forms of the improved second actuator 310.

[0084] The following explanation will be based on Figure 13(a).

[0085] The second actuator 310 mainly consists of a drive motor, drive controller, clutch, gearbox, rope receiving roller, drive rope, and battery. The gearbox is located between the clutch and the rope receiving roller, and the drive motor is located between the clutch and the drive controller. The drive controller is connected to the battery. During the reset process, the drive controller controls the drive motor and, through the gearbox, controls the rope receiving roller to retract the drive rope, resetting the second walking mechanism 510 and reconnecting it to the locking sleeve 800. During the reopening process, the drive motor controls the rope receiving roller through the gearbox, coordinating with the action of the first actuator 300 to synchronously release the drive rope 700. The battery supplies power to the drive motor. If the drive rope 700 releases too quickly, to avoid burning out the drive motor, the connection between the gearbox drive shaft and the drive motor can be disconnected by using the clutch.

[0086] In the optimized second drive 310, a braking mechanism and a generator motor are added. The braking mechanism is located between the rope drum and the gearbox, and is also connected to the brake control. The generator motor is located between the gearbox and the generator controller, and the generator controller is connected to the battery. When the wind resistance component F acting on the umbrella top... 风阻分力 When the wind speed increases significantly, the rotational speed of the cord-holding drum will also increase significantly. When the drum speed exceeds a preset limit, the generator controller intervenes, converting the kinetic energy of the drum's rotation into electrical energy stored in the battery to power the relevant power modules. Simultaneously, the generator provides a reverse torque, which acts on the cord-holding drum, generating a downward adjustable resistance on the drive rope 700. This delays the rise of the umbrella top as needed, preventing a rapid surge and achieving a "soft opening" effect. If the generator speed reaches a set safe speed due to excessive wind speed, a braking mechanism can be triggered. The braking mechanism works in conjunction with the generator to generate the required adjustable resistance, achieving controllable and safe umbrella opening. The braking mechanism in this embodiment can be of various forms, such as friction, hydraulic, or electromagnetic, depending on the specific application requirements; no limitation is made.

[0087] In the preferred embodiment, to increase output power, the windward area of ​​the canopy can be increased as much as possible while ensuring the material strength of the canopy fabric and ropes and the driving capability of the actuator. At the same wind speed, the system output power is directly proportional to the effective windward area of ​​the canopy.

[0088] In a more optimized design, to increase system output power and allow for flexible adjustment, multiple sets of power umbrellas and their corresponding drive systems can be installed on the main cable 200, forming a parachute ladder assembly. Each power umbrella in the ladder assembly can be flexibly opened and closed according to wind conditions and ground-based power / power generation needs. An example of the parachute ladder assembly built using this design is available for reference. Figure 5 As shown, two or more drive and power umbrella modules are installed at appropriate intervals on the main cable 200.

[0089] Compared to Embodiment 2, this embodiment achieves the same operational effect. However, this embodiment reduces the third stop 420, resulting in a simpler structure. Furthermore, due to the appropriate upward shift of the second stop 410's mounting position on the main cable 200, the upward deceleration distance of the second traveling mechanism 510 is longer during umbrella closing. Under the same closing wind speed, the potential impact of the second traveling mechanism 510 on the second stop 410 is smaller, thus making it easier to maintain system structural safety when using a larger working umbrella. However, in this embodiment, the first driver 300 and the second driver 310 also drag the driving rope 700 a longer distance, which may slightly increase drive power consumption. Therefore, Embodiment 2 or this embodiment can be flexibly adopted according to the actual application scenario requirements.

[0090] <Example 5> This embodiment is a further improvement on embodiment 4. The only difference between this embodiment and embodiment 4 is that the drive motor and generator motor in the power umbrella braking device are combined into one, as shown in Figure 13(b).

[0091] During the reset phase, the motor acts as a drive motor, pulling down the drive rope 700 via the drive rope roller. This, in turn, resets the second traveling mechanism 510 via the second stop 410 on the drive rope 700, and reconnects and locks it with the retaining sleeve 800. During the re-opening process, the wind resistance component F acting on the umbrella top in the initial stage... 风阻分力 When the rope is not large, the second drive 310 only needs to cooperate with the pulling action of the first drive 300 to release the rope, or the clutch can be disengaged to allow the rope to be released freely by the rope receiving drum.

[0092] When the umbrella begins to open to catch the wind, the component of the wind resistance force F acting on the top of the umbrella is... 风阻分力 The rotational speed of the cord-holding roller will be significantly enhanced, and when it exceeds the system's preset parameters, the clutch of the second driver 310 will be set to the engaged state, and the motor will switch to power generation mode. At this time, the rotational kinetic energy of the cord-holding roller will be converted into electrical energy that can be stored in the battery by the motor to supply the relevant power modules. Simultaneously, the motor will provide a reverse torque in power generation mode. This reverse torque acts on the cord-holding roller, generating a downward adjustable resistance on the drive rope 700, which, as needed, slows down the rise of the umbrella top, preventing a rapid impact and achieving a "soft opening" effect. If the real-time wind speed is too high, causing the motor speed to reach the set safe speed, the braking mechanism can be triggered. The braking mechanism works in conjunction with the motor to generate the required adjustable resistance, achieving controllable and safe umbrella opening. The braking mechanism can take various forms, such as friction, hydraulic, or electromagnetic, depending on the specific application requirements; there are no limitations on this.

[0093] The embodiments and / or application examples described above are merely illustrative descriptions of this application and are not intended to limit the scope of this application. Any modifications and improvements made to the technical solutions of this application by those skilled in the art without departing from the spirit of this application should fall within the protection scope defined by this application.

Claims

1. A working umbrella brake device, characterized by, The application relates to a driving device for driving a working umbrella of a high-altitude wind energy working system, wherein the driving device is provided with a driving rope, and the driving umbrella is controlled to slide along a main cable rope by traction of the driving rope through a winding and unwinding mechanism. The brake device comprises a power generation motor module, the power generation motor module is connected with the winding and unwinding mechanism and a control module for controlling the power generation motor module, and the power generation motor module provides a torque in the opposite direction of the winding and unwinding mechanism.

2. The working umbrella brake device according to claim 1, characterized in that, The control module comprises a power generation controller and a driving controller connected with a power supply, the power generation controller is connected with the power generation motor module; The driving controller is connected with a driving motor module, the driving motor module is connected with a clutch module, the clutch module is connected with a speed reducer module, and the speed reducer module is connected with the winding and unwinding mechanism.

3. The working umbrella brake device according to claim 2, characterized in that, A gear box module is arranged between the power generation motor module and the winding and unwinding mechanism, a brake mechanism is arranged between the gear box module and the winding and unwinding mechanism, and the brake mechanism is connected with a brake control module for controlling the brake mechanism.

4. The working umbrella brake device of claim 1, wherein, The power generation motor module and the driving motor module are combined to form a driving-power generation module, the speed reducer module is arranged between the clutch module and the winding and unwinding mechanism, the driving-power generation module is arranged between the clutch module and the control module, the control module is connected with a power supply, and the control module is used for controlling mode switching of the driving-power generation module.

5. The working umbrella brake device of claim 4, wherein, The winding and unwinding mechanism is connected with the brake mechanism, and the brake mechanism is connected with a brake control module for controlling the brake mechanism.

6. A working umbrella brake device according to any one of claims 1 to 5, characterised in that, The driving device comprises a first driver, a second driver, a first walking mechanism and a second walking mechanism, and the working umbrella brake device is arranged on the second driver; The first driver and the second driver are fixedly arranged on the main cable rope, the main cable rope passes through the umbrella top of the working umbrella, and one end of the main cable rope is connected with an air guiding balance module and the other end is connected with a ground module; the first driver and the second driver jointly pull a driving rope which is parallel to the main cable rope, and the driving rope is provided with a traction member; The first walking mechanism is arranged on the umbrella top and can walk up and down along the main cable rope; the second walking mechanism is connected to the umbrella periphery of the working umbrella through a plurality of umbrella periphery umbrella ropes and can walk up and down along the main cable rope; the main cable rope is also provided with a limiting mechanism for limiting the walking of the second walking mechanism; The first driver and the second driver are respectively provided with winding and unwinding mechanisms for winding and unwinding the driving rope, when the driving rope is pulled, the traction member drives the first walking mechanism or the second walking mechanism to walk along the main cable rope under the pulling of the driving rope.

7. The working umbrella brake device of claim 6, wherein, The umbrella top of the working umbrella is connected to the first walking mechanism through a plurality of umbrella top umbrella ropes; The first walking mechanism and the second walking mechanism are respectively sleeved on the main cable rope, and the first walking mechanism and the second walking mechanism comprise a sliding walking part for walking along the main cable rope.

8. The working umbrella brake device of claim 7, wherein, The first walking mechanism and the second walking mechanism further comprise a circumferential rotating mechanism capable of rotating around the circumference of the first walking mechanism and the second walking mechanism; The umbrella top umbrella rope is connected to the circumferential rotating mechanism of the first walking mechanism, and the umbrella circumference umbrella rope is connected to the circumferential rotating mechanism of the second walking mechanism; The limiting mechanism limits the walking of the second walking mechanism by clamping.

9. The working umbrella brake device of claim 6, wherein, The traction member comprises a first stop block and a second stop block, the first stop block is located above the first walking mechanism, and the second stop block is located between the first walking mechanism and the second walking mechanism; or The traction member comprises a first stop block, a second stop block and a third stop block, the first stop block is located above the first walking mechanism, the second stop block is located between the first walking mechanism and the second walking mechanism, and the third stop block is located between the second stop block and the first walking mechanism.

10. A high altitude wind energy power system, characterized by, The high-altitude wind energy working system uses the working umbrella brake device according to any one of claims 1 to 9.

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