Base station, wind power generation system and wind power generation method

Abstract

The present application provides a base station, a wind power generation system and a wind power generation method, including: a main towing rope; a work device for receiving wind energy in the high altitude and converting the wind energy into mechanical energy; the work device includes a floating unit and at least one work unit; a base station for receiving the mechanical energy from the work device and converting the mechanical energy into electrical energy; the base station includes a power generation unit, a lifting pile and a support unit, and the power generation unit is connected to the work device through the main towing rope; the support unit is used to support the lifting pile so that the lifting pile is higher than the ground, and the main towing rope passes through the lifting pile and extends out of the lifting pile; wherein, when the work device is in a suspended state, the main towing rope is in a taut state. The present application can not only prevent the extended part of the main towing rope from contacting the objects in the surrounding environment below the lifting pile when it rotates under the action of wind force, but also reduce the overall rotation amplitude of the main towing rope, thereby reducing the site requirements for the operation of the wind power generation system.

Description

Technical Field

[0001] This application relates to the technical field of high-altitude wind power generation, and particularly to a base station, a wind power generation system, and a wind power generation method. Background Art

[0002] The work device in the high-altitude wind power generation system captures wind energy at high altitude and converts the wind energy into mechanical energy. The mechanical energy is transmitted downward through the main towing rope to the base station on the ground, thereby realizing the conversion of wind energy into electrical energy. However, in actual operation, the system may face several challenges. Especially when the main towing rope rotates under the action of wind force, it may come into contact with objects in the surrounding environment, thus affecting the stable operation of the wind power generation system.

[0003] Based on this, this application provides a base station, a wind power generation system, and a wind power generation method to improve the related technology. Summary of the Invention

[0004] The purpose of this application is to provide a base station, a wind power generation system, and a wind power generation method, which improve the stability of the operation of the wind power generation system.

[0005] The purpose of this application is achieved by the following technical solutions:

[0006] In a first aspect, this application provides a wind power generation system, including:

[0007] A main towing rope;

[0008] A work device for receiving wind energy at high altitude and converting the wind energy into mechanical energy; the work device includes a floating unit and at least one work unit;

[0009] A base station for receiving the mechanical energy from the work device and converting the mechanical energy into electrical energy; the base station includes a power generation unit, a lifting pile, and a support unit. The power generation unit is connected to the work device through the main towing rope; the support unit is used to support the lifting pile so that the lifting pile is higher than the ground, and the main towing rope passes through the lifting pile and extends out of the lifting pile;

[0010] Wherein, in the suspended state of the work device, the main towing rope is in a taut state, so that when the extended part of the main towing rope rotates under the action of wind force, it does not come into contact with the objects in the surrounding environment below the lifting pile.

[0011] In some embodiments, the support unit adopts a hollow structure, and the lifting pile is installed on the top of the support unit;

[0012] A receiving space is formed inside the support unit, and the main towing rope passes through the receiving space.

[0013] In some embodiments, the lifting pile has a universal rotating structure.

[0014] In some embodiments, the shape of the support unit is conical, cylindrical, bullet-shaped or polyhedral; and / or,

[0015] The base station further includes a lifting device disposed inside the accommodation space, and the lifting device is used to drive an operator to lift and lower to maintain the lifting pile; and / or,

[0016] At least one opening is formed on the side wall of the support unit to facilitate the operator to enter and exit; and / or,

[0017] At least a part of the side wall of the support unit is made of a transparent material.

[0018] In a second aspect, an embodiment of the present application further provides a wind power generation method, which is applicable to the wind power generation system described in any one of the above, and the wind power generation system further includes an installation platform. The method includes:

[0019] Using the installation platform to release the floating unit and at least one working unit; wherein, before releasing the last working unit, connecting the last working unit to the extended part of the main towing rope;

[0020] Using the at least one working unit to receive the wind energy in the high altitude and convert the wind energy into mechanical energy;

[0021] Using the power generation unit to receive the mechanical energy from the at least one working unit and convert the mechanical energy into electrical energy;

[0022] When the extended part rotates under the action of wind force, using the lifting pile to maintain the non-contact state between the extended part and the objects in the surrounding environment below the lifting pile.

[0023] In some embodiments, the installation platform includes a winch and a fixed connection seat. The process of using the installation platform to release the floating unit includes:

[0024] Connecting the floating unit to the fixed connection seat;

[0025] Connecting the first working unit to the floating unit;

[0026] Connecting the floating unit to the winch;

[0027] Disconnecting the connection between the floating unit and the fixed connection seat;

[0028] Using the winch to release the floating unit.

[0029] In some embodiments, the process of launching the at least one work unit by using the installation platform includes:

[0030] Connect the i-th work unit to the fixed connection seat, where i is a positive integer;

[0031] Connect the (i + 1)-th work unit to the i-th work unit;

[0032] Connect the i-th work unit to the winch;

[0033] Disconnect the i-th work unit from the fixed connection seat;

[0034] Launch the i-th work unit by using the winch;

[0035] Disconnect the i-th work unit from the winch.

[0036] In some embodiments, when the previous unit of the work unit is the floating unit, the auxiliary towing rope of the floating unit passes through the work unit and is connected to the next unit of the work unit.

[0037] In some embodiments, when the next unit of the work unit is the power generation unit, the auxiliary towing rope of the previous unit of the work unit passes through the work unit and is connected to the extended part of the main towing rope.

[0038] In a third aspect, an embodiment of the present application further provides a base station for use in a wind power generation system. The wind power generation system includes a main towing rope and a work device. The base station is configured to receive mechanical energy from the work device and convert the mechanical energy into electrical energy. The base station includes a power generation unit, a lifting pile, and a support unit. The power generation unit is connected to the work device through the main towing rope; the support unit is configured to support the lifting pile so that the lifting pile is higher than the ground, and the main towing rope passes through the lifting pile and extends out of the lifting pile;

[0039] Wherein, in a suspended state of the work device, the main towing rope is in a taut state, so that when the extended part of the main towing rope rotates under the action of wind, it does not come into contact with objects in the surrounding environment below the lifting pile.

[0040] The present application provides a base station, a wind power generation system and a wind power generation method. The wind power generation system includes a main towing rope, a work device and a base station. The base station is used to receive mechanical energy from the work device and convert the mechanical energy into electrical energy. The base station includes a power generation unit, a lifting pile and a support unit. The power generation unit is connected to the work device through the main towing rope. The support unit is used to support the lifting pile so that the lifting pile is higher than the ground. The main towing rope passes through the lifting pile and extends out of the lifting pile. Among them, when the work device is in a suspended state, the main towing rope is in a taut state, so that when the extended part of the main towing rope rotates under the action of wind force, it does not come into contact with the objects in the surrounding environment lower than the lifting pile. By setting the lifting pile at a position higher than the ground and arranging the main towing rope to pass through the lifting pile and extend out of the lifting pile, the present application can not only ensure that the part of the main towing rope extending out of the lifting pile does not come into contact with the objects in the surrounding environment lower than the lifting pile when rotating under the action of wind force, but also reduce the overall rotation amplitude of the main towing rope, reduce the site requirements for the operation of the wind power generation system, and improve the safety of the wind power generation system. Description of the Drawings

[0041] The present application will be further described below in conjunction with the drawings in the specification and the specific embodiments.

[0042] Figure 1 It is a schematic structural diagram of a wind power generation system provided by an embodiment of the present application.

[0043] Figure 2 It is a schematic structural diagram of a base station provided by an embodiment of the present application.

[0044] Figure 3 It is a schematic diagram of the rotation situation of a conventional lifting pile set on the ground provided by an embodiment of the present application.

[0045] Figure 4 It is a schematic diagram of the rotation situation of a lifting pile higher than the ground provided by an embodiment of the present application.

[0046] Figure 5 It is a schematic structural diagram of a lifting pile provided by an embodiment of the present application.

[0047] Figure 6 It is a schematic structural diagram of a work unit provided by an embodiment of the present application.

[0048] Figure 7 It is a schematic structural diagram of a work device provided by an embodiment of the present application.

[0049] Figure 8 It is a schematic operation diagram of Step 1 of a wind power generation method provided by an embodiment of the present application.

[0050] Figure 9It is a schematic diagram of the operation of step 2 of a wind power generation method provided by an embodiment of the present application.

[0051] Figure 10 It is a schematic diagram of the operation of step 3 of a wind power generation method provided by an embodiment of the present application.

[0052] Figure 11 It is a schematic diagram of the operation of step 4 of a wind power generation method provided by an embodiment of the present application.

[0053] Figure 12 It is a schematic diagram of the operation of step 5 of a wind power generation method provided by an embodiment of the present application.

[0054] Figure 13 It is a schematic diagram of the operation of step 6 of a wind power generation method provided by an embodiment of the present application.

[0055] Figure 14 It is a schematic diagram of the operation of step 7 of a wind power generation method provided by an embodiment of the present application.

[0056] Figure 15 It is a schematic diagram of the operation of step 8 of a wind power generation method provided by an embodiment of the present application.

[0057] Figure 16 It is a schematic diagram of the operation of step 9 of a wind power generation method provided by an embodiment of the present application.

[0058] In the figure: 100, main towing rope; 110, main connector; 200, power generation device; 210, floating unit; 211, floating device; 212, floating towing rope; 213, floating fixing piece; 214, floating auxiliary towing rope; 215, floating auxiliary fixing rope; 216, floating connector; 220, power generation unit; 221, power generation parachute; 222, parachute top piece; 223, parachute tail piece; 224, power generation towing rope; 225, power generation fixing piece; 226, power generation auxiliary towing rope; 227, power generation auxiliary fixing rope; 228, first connector; 229, second connector; 231, counterweight; 300, base station; 310, power generation unit; 320, lifting pile; 321, mounting base; 322, rotating piece; 323, fixed pulley; 330, support unit; 400, installation platform; 410, winch; 420, fixed connection seat; 430, pulley. Detailed implementation manners

[0059] The following will be combined with the drawings in this application to clearly and completely describe the technical solutions in the implementation mode of this application. Obviously, the described implementation mode is only a part of the implementation mode of this application, not all the implementation modes. Based on the implementation mode in this application, all other implementation modes obtained by those skilled in the art without creative work are within the scope of protection of this application.

[0060] In the description of the embodiments of the present application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0061] As the global demand for sustainable energy increases, high-altitude wind energy has gradually become a focus of research and development. In the past, wind power generation mainly relied on ground wind, but the wind speed of ground wind is greatly affected by factors such as terrain and vegetation, and the wind intensity is limited. In contrast, high-altitude wind energy uses continuous and strong wind resources located higher in the atmosphere to provide more stable and powerful energy output.

[0062] The high-altitude wind power generation system uses a floating unit (such as a balloon or kite) to lift the work unit to a high altitude, capture the high-altitude wind energy through the work unit, and convert the high-altitude wind energy into mechanical energy, and then transmit the mechanical energy to the power generation unit on the ground through the main traction rope. However, there are some challenges and limitations in the actual application of this system. For example, the main traction rope is prone to collide with objects close to the ground when affected by wind, causing the system to operate unstably or even be damaged.

[0063] See also Figures 1 to 4 , Figure 1 is a structural schematic diagram of a wind power generation system provided in an embodiment of the present application, Figure 2 is a schematic diagram of the structure of a base station provided in an embodiment of the present application, Figure 3 is a schematic diagram of a conventional lifting pile provided in an embodiment of the present application, which is arranged on the ground. Figure 4 It is a schematic diagram of the rotation of a lifting pile above the ground provided in an embodiment of the present application.

[0064] In order to improve the relevant technology, an embodiment of the present application provides a wind power generation system, including a main traction rope 100, a working device 200 and a base station 300.

[0065] The work device 200 is used to receive the wind energy in the high altitude and convert the wind energy into mechanical energy. The work device 200 includes a floating unit 210 and at least one work unit 220. In the wind power generation system, the work device 200 needs to be released in the high altitude to receive the wind energy, and at least one work unit 220 can be driven to lift off by the buoyancy of the floating unit 210. The floating unit 210 can be a helium balloon, and the work unit 220 can be a work parachute. The number of the work units 220 can be 3 to 7, specifically related to the size and buoyancy of the floating unit 210.

[0066] The base station 300 is used to receive the mechanical energy from the work device 200 and convert the mechanical energy into electrical energy; the base station 300 includes a power generation unit 310, a lifting pile 320 and a support unit 330. The power generation unit 310 is connected to the work device 200 through the main towing rope 100; the support unit 330 is used to support the lifting pile 320 to make the lifting pile 320 higher than the ground, and the main towing rope 100 passes through the lifting pile 320 and extends out of the lifting pile 320. The work device 200 converts the received wind energy into mechanical energy and transmits the mechanical energy to the power generation unit 310 through the main towing rope 100. The existence of the support unit 330 can ensure the stability of the lifting pile 320. The support unit 330 can be a support rod or a support base, as long as the lifting pile 320 is set higher than the ground. The main towing rope 100 passes through the lifting pile 320 and extends out of the lifting pile 320, and the lifting pile 320 is a hollow structure. In the wind power generation system, the main towing rope 100 will rotate as the work device 200 rotates, and the lifting pile 320 sets a certain limit on the rotation of the work device 200. In the past, the lifting pile 320 was directly set on the ground, and the connection position of the main towing rope 100 and the lifting pile 320 was used as the rotation center of the main towing rope 100, and it can be considered that the position of the rotation center of the main towing rope 100 is relatively low. In the above embodiment, by setting the lifting pile 320 at a position higher than the ground and passing the main towing rope 100 through the lifting pile 320, the lifting pile 320 is used to provide a limit on the rotation of the main towing rope 100, so that both ends of the part of the main towing rope 100 below the lifting pile 320 are restricted by the lifting pile 320 and the power generation unit 310. Even if it rotates, the rotation amplitude is relatively small and it is difficult to contact the objects in the surrounding environment. In addition, as Figure 3 and Figure 4 shown, the rotation center of the part of the main towing rope 100 above the lifting pile 320 is the connection position of the main towing rope 100 and the lifting pile 320. Compared with the past when the lifting pile 320 was set on the ground, the position of the rotation center of the main towing rope 100 is improved, for example, lifted from point O to point O', thereby reducing the rotation amplitude of the main towing rope 100 at the same height above the lifting pile 320.

[0067] Among them, when the power generation device 200 is in a suspended state, the main traction rope 100 is in a taut state, so that when the extended part of the main traction rope 100 rotates under the action of wind force, it does not come into contact with the objects in the surrounding environment below the lifting pile 320. When the wind power generation system is working, the power generation device 200 is in a suspended state, and at the same time the main traction rope 100 is in a taut state. Due to the restrictive effect of the lifting pile 320 on the main traction rope 100, the extended part of the main traction rope 100 is always higher than the lifting pile 320, so that the extended part of the main traction rope 100 does not come into contact with the objects in the surrounding environment below the lifting pile 320. The extended part of the main traction rope 100 refers to the part of the main traction rope 100 that extends out of the lifting pile 320, and the objects in the surrounding environment can be buildings or trees, etc. Assume that the height of the lifting pile 320 in the above embodiment is H. When the lifting pile 320 was directly installed on the ground in the past, when the main traction rope 100 was in a vertical state, taking the length of the main traction rope 100 below the height H as L, it can be known that the value of L is approximately equal to the value of H; when the main traction rope 100 forms a certain angle a with the ground, for example, the value of the angle a is 30° to 75°, it can be known that the main traction rope 100 is in an inclined state. Taking the length of the main traction rope 100 below the height H as L', taking L' as the generatrix of the cone, and taking the wire outlet position of the main traction rope 100 as the vertex of the cone, a cone is defined. When the wind power generation system is working (that is, the power generation device 200 is in a suspended state and the main traction rope 100 is in a taut state), the main traction rope 100 will come into contact with the objects in the surrounding environment within the cone range. However, in the above embodiment, the rotation angle of the main traction rope 100 is limited by the lifting pile 320, so that the main traction rope 100 above the height H of the lifting pile 320 is always above the height H during operation and does not come into contact with the objects in the surrounding environment below the height H of the lifting pile 320.

[0068] In summary, in the above embodiment, the lifting pile 320 is installed at a position higher than the ground, and the main traction rope 100 is threaded through the lifting pile 320 and extended out of the lifting pile 320. This can not only ensure that the extended part of the main traction rope 100 does not come into contact with the objects in the surrounding environment below the lifting pile 320 when it rotates under the action of wind force, but also reduce the overall rotation amplitude of the main traction rope 100, reduce the site requirements for the operation of the wind power generation system, and improve the safety of the wind power generation system.

[0069] In order to reduce the damage to the main towing rope 100 and improve the environmental integration of the entire wind power generation system, in some embodiments, the support unit 330 adopts a hollow structure, and the lifting pile 320 is installed at the top of the support unit 330; a receiving space is formed in the support unit 330, and the main towing rope 100 is threaded through the receiving space. Setting the support unit 330 as a hollow structure enables the main towing rope 100 to be concealedly threaded through the lifting pile 320, reducing the contact between the main towing rope 100 and the objects in the surrounding environment, minimizing the damage to the main towing rope 100, and extending the stable operation time of the wind power generation system. In some embodiments, the height of the support unit 330 can be 10 m to 100 m.

[0070] In order to reduce the friction between the main towing rope 100 and the lifting pile 320, in some embodiments, the lifting pile 320 is a universal rotating structure. By designing the lifting pile 320 as a universal rotating structure, when the main towing rope 100 is affected by wind force, no matter how the wind direction changes, it can adjust the rotation direction more freely, thereby reducing the sudden change in tension or kinking of the main towing rope 100 caused by the change in wind direction. As Figure 5 shown, the lifting pile 320 includes a mounting base 321 and a rotating member 322 provided on the mounting base 321. The mounting base 321 is a hollow structure. The outer side wall of the mounting base 321 is connected to the support unit 330, and the inner side wall of the mounting base 321 can rotate relative to the outer side wall, similar to a bearing structure. The rotating member 322 is connected to the inner side wall of the mounting base 321 and can rotate with the inner side wall of the mounting base 321. A fixed pulley 323 is provided on the rotating member 322, and the main towing rope 100 passes through the mounting base 321 and the rotating member 322 and is connected to the fixed pulley 323. When the main towing rope 100 is affected by wind force, the fixed pulley 323 and the rotating member 322 rotate together with the main towing rope 100, thereby reducing the friction force received by the main towing rope 100. In addition, the lifting pile 320 with a universal rotating structure can effectively disperse the torque of the wind force acting on the main towing rope 100, reduce the stress concentration in a single direction, enhance the stability and durability under strong wind conditions, and thus improve the reliability of the entire wind power generation system. In a possible implementation manner, a rotatable pulley is provided in the universal rotating structure, for example.

[0071] In some embodiments, the shape of the support unit 330 is conical, cylindrical, bullet-shaped or polyhedral. By designing the support unit 330 as conical, cylindrical, bullet-shaped or polyhedral, the structural strength of the support unit 330 can be optimized according to specific requirements, the wind resistance can be reduced, and at the same time, the appearance design sense and environmental integration of the wind power generation system can be improved.

[0072] In some embodiments, the base station 300 further includes a lifting device disposed inside the accommodation space. The lifting device is used to drive the operator to lift up and down for maintaining the aerial pile 320. The added lifting device enables the operator to perform lifting operations inside the accommodation space, facilitating the maintenance and repair of the aerial pile 320, and greatly improving the maintenance efficiency and personnel safety.

[0073] In some embodiments, at least one opening is formed on the side wall of the support unit 330 to facilitate the operator to enter and exit. Providing at least one opening on the side wall of the support unit 330 facilitates the operator to enter and exit the accommodation space inside the support unit 330, enabling the operator to be more rapid during daily inspections and emergency handling without the need for complex external climbing equipment.

[0074] In some embodiments, at least a part of the side wall of the support unit 330 is made of a transparent material. Using a transparent material to make at least a part of the side wall of the support unit 330 can introduce natural light from the outside of the support unit 330, improving the internal working environment. At the same time, it also facilitates the observation and monitoring of the internal structure, which is beneficial to understanding the equipment status in real time.

[0075] In some embodiments, the side wall of the support unit 330 is relatively smooth, so that the main traction rope 100 and the work device 200 will not be hooked on the side wall. The support unit 330 also has a certain lateral tensile strength, so that the support unit 330 will not tip over when affected by wind force.

[0076] In some embodiments, the power generation unit 310 further includes a plurality of core components and corresponding auxiliary components. Among them, the core components are, for example, a tensioning component, an electric energy conversion component, and a cable storage component, and the auxiliary components are, for example, a lubrication component, a speed reduction component, a cooling component, a signal detection component, a control component, a energy storage component, etc.

[0077] The embodiment of the present application also provides a wind power generation method, which is applicable to the wind power generation system of any one of the above. The wind power generation system further includes an installation platform. The method includes: using the installation platform to release the floating unit and at least one work unit; wherein, before releasing the last work unit, connecting the last work unit to the extended part of the main traction rope; using at least one work unit to receive the wind energy in the high altitude and convert the wind energy into mechanical energy; using the power generation unit to receive the mechanical energy from at least one work unit and convert the mechanical energy into electric energy; when the extended part rotates under the action of wind force, using the aerial pile to maintain the non-contact state between the extended part and the objects in the surrounding environment below the aerial pile.

[0078] In the above embodiment, first, a special installation platform is used to complete the sequential assembly of the floating unit and at least one working unit, ensuring that the last working unit is reliably connected to the extended part of the main traction rope before being released, thereby forming an energy transmission path from the base station on the ground to the working device in the sky. After the working device is successfully lifted off and reaches the designated position, it begins to capture and utilize the abundant wind energy in the sky. The wind drives the working unit to rotate, and each unit converts the received wind energy into mechanical energy, which is then transmitted downward to the power generation unit on the ground through the main traction rope. The built-in conversion mechanism of the power generation unit efficiently converts the received mechanical energy into electrical energy to supply power to the power grid or specific load. During the entire operation process, the lifting pile plays an important supporting and positioning role. The universal rotating structure and the setting above the ground ensure that even in the case of variable wind direction or strong wind, the extended part of the main traction rope can flexibly adjust the direction, while reducing collisions with objects on the ground and the surrounding environment. Through the lifting pile, the wind power generation system can maintain the optimal stress state, which not only ensures the continuity of energy transmission, but also protects the system from external physical damage. In some embodiments, the base station and the working device are in one-to-one correspondence, and accordingly, the power generation unit and the floating unit are in one-to-one correspondence. The corresponding relationship between the installation platform and the working device can be one-to-many, and accordingly, multiple base stations can be distributed around the installation platform or on one side of the installation platform.

[0079] The above embodiment reduces the difficulty and cost of assembly by means of the convenient operation of the installation platform. Secondly, through the precise installation process and efficient wind energy conversion mechanism, it can maximize the advantage of high-altitude wind speed and significantly improve the efficiency of converting wind energy into electrical energy. In addition, the design of the lifting pile not only effectively controls the rotation amplitude of the main traction rope, but also reduces the risk of contact between the main traction rope and the working device and objects in the surrounding environment, reduces the possibility of accidents, and improves the safety factor of the entire system.

[0080] In order to clarify the specific steps of launching the floating unit, in some embodiments, the installation platform includes a winch and a fixed connection seat, and the process of launching the floating unit using the installation platform includes: connecting the floating unit to the fixed connection seat; connecting the first working unit to the floating unit; connecting the floating unit to the winch; releasing the connection between the floating unit and the fixed connection seat; and launching the floating unit using the winch.

[0081] In the above embodiments, first, the floating unit is firmly connected to the fixed connection seat of the installation platform, ensuring the stability and safety of the floating unit in the initial assembly stage. Subsequently, the first work unit is connected to the floating unit to construct the basic framework of the work device. Then, the floating unit is connected to the winch. As an important mechanical lifting device, the winch provides the power basis for subsequent lifting operations. After ensuring that all connections are safe and correct, the constraint between the floating unit and the fixed connection seat is released. At this time, the winch is started, and the floating unit is slowly lifted by the precisely controlled traction force.

[0082] The above embodiments significantly improve the safety factor during the installation stage through a step-by-step and orderly operation process, and can effectively control and manage potential risks. In addition, by using the mechanized operation of the winch, the release time of the floating unit can be shortened. Compared with manual methods, the deployment efficiency is improved, and the labor cost is reduced.

[0083] To clarify the specific steps for releasing at least one work unit, in some embodiments, the process of using the installation platform to release at least one work unit includes: connecting the i-th work unit to the fixed connection seat, where i is a positive integer; connecting the (i + 1)-th work unit to the i-th work unit; connecting the i-th work unit to the winch; releasing the connection between the i-th work unit and the fixed connection seat; using the winch to release the i-th work unit; and releasing the connection between the i-th work unit and the winch.

[0084] In the above embodiments, starting from the first work unit, each work unit is sequentially connected to the previous work unit in order until all work units form a chain structure, and each work unit needs to be temporarily connected to the fixed connection seat of the installation platform before being released. The work units are not released all together after all of them are connected, but each work unit is released individually. Moreover, when each work unit is released, only one subsequent work unit is connected to the released work unit. For each work unit, it is first connected to the winch, then the binding with the fixed connection seat is released, and it is smoothly lifted to the specified height by the traction force of the winch. After the release is completed, the connection between the work unit and the winch is disconnected to prepare for the release of the next work unit.

[0085] The above embodiments achieve refined control of the release process through sequential release of each unit, ensuring the orderliness and safety of the entire release process, and reducing the uncontrollable risks brought by the one-time release of large-scale components. In addition, the progressive connection method enables the entire work device to maintain the coherence and stability of the structure during the lifting process. Each work unit is fully fixed and tested before lifting, reducing the failure rate caused by improper connection after lifting.

[0086] In some embodiments, to increase the connection strength between the floating unit and at least one work unit, the auxiliary towing rope of the unit preceding the work unit is passed through the work unit and connected to the next unit of the work unit.

[0087] In the above embodiments, when preparing to release the current work unit, it is necessary to pass the auxiliary towing rope of the previous work unit through the current work unit and then connect it to the next work unit. In this way, the current work unit is not only directly connected to the previous unit and the next unit, but also forms a chain structure with the spaced units through the auxiliary towing rope, ensuring that there are both direct mechanical connections between the units during the release process and additional stability and control provided by the auxiliary ropes.

[0088] The chain structure formed by the auxiliary towing rope in the above embodiments significantly enhances the stability of the entire wind power generation system in the air. Each work unit not only bears the connection force of the directly connected units, but also obtains additional support through the auxiliary towing rope, is suitable for complex wind conditions, and can effectively reduce the distortion or disintegration of the work device. In addition, the tightness or connection method of the auxiliary towing rope can be adjusted in a timely manner according to the actual wind conditions and installation requirements to adapt to different environmental conditions and operation requirements, enhancing the environmental adaptability of the system and the flexibility of operation.

[0089] In some embodiments, when the unit preceding the work unit is a floating unit, the auxiliary towing rope of the floating unit is passed through the work unit and connected to the next unit of the work unit.

[0090] In the above embodiments, when the unit preceding the work unit is a floating unit, the auxiliary towing rope equipped on the floating unit will pass through the first work unit and be connected to the next unit, not only using the buoyancy of the floating unit to support the entire chain, but also enhancing the longitudinal stability of the structure through the auxiliary towing rope, ensuring a smooth transition of wind energy from the floating unit to the work unit.

[0091] In some embodiments, when the next unit of the work unit is a power generation unit, the auxiliary towing rope of the unit preceding the work unit is passed through the work unit and connected to the extended part of the main towing rope.

[0092] In the above embodiments, when the next unit of the work unit is a power generation unit, the auxiliary towing rope of the unit preceding the last work unit (i.e., the second-to-last unit) passes through the last work unit and is connected to the extended part of the main towing rope, simplifying the docking process between the work unit and the ground base station, ensuring the efficient and uninterrupted transmission of mechanical energy to the power generation unit, and at the same time ensuring the structural integrity of the system under the action of wind and the continuity of energy transmission.

[0093] An embodiment of the present application further provides a base station for a wind power generation system. The wind power generation system includes a main traction rope and a power generation device. The base station is configured to receive mechanical energy from the power generation device and convert the mechanical energy into electrical energy. The base station includes a power generation unit, a lifting pile, and a support unit. The power generation unit is connected to the power generation device through the main traction rope. The support unit is configured to support the lifting pile so that the lifting pile is higher than the ground. The main traction rope passes through the lifting pile and extends out of the lifting pile. Wherein, when the power generation device is in a suspended state, the main traction rope is in a taut state, so that when the extended portion of the main traction rope rotates under the action of wind, it does not come into contact with objects in the surrounding environment below the lifting pile.

[0094] Please refer to Figures 6 to 16 , Figure 6 which is a schematic structural diagram of a power generation unit provided by an embodiment of the present application. Figure 7 which is a schematic structural diagram of a power generation device provided by an embodiment of the present application. Figure 8 which is an operation schematic diagram of step 1 of a wind power generation method provided by an embodiment of the present application. Figure 9 which is an operation schematic diagram of step 2 of a wind power generation method provided by an embodiment of the present application. Figure 10 which is an operation schematic diagram of step 3 of a wind power generation method provided by an embodiment of the present application. Figure 11 which is an operation schematic diagram of step 4 of a wind power generation method provided by an embodiment of the present application. Figure 12 which is an operation schematic diagram of step 5 of a wind power generation method provided by an embodiment of the present application. Figure 13 which is an operation schematic diagram of step 6 of a wind power generation method provided by an embodiment of the present application. Figure 14 which is an operation schematic diagram of step 7 of a wind power generation method provided by an embodiment of the present application. Figure 15 which is an operation schematic diagram of step 8 of a wind power generation method provided by an embodiment of the present application. Figure 16 which is an operation schematic diagram of step 9 of a wind power generation method provided by an embodiment of the present application.

[0095] Hereinafter, taking the power generation device including a floating unit and a power generation unit as an example, the wind power generation system and the wind power generation method will be illustrated by examples.

[0096] The wind power generation system includes a main traction rope, a power generation device, a base station, and an installation platform. The base station includes a power generation unit, a lifting pile, and a support unit. The power generation unit is connected to the power generation device through the main traction rope. The support unit is configured to support the lifting pile. The support unit adopts a hollow structure. The main traction rope passes through the accommodation space formed inside the support unit.

[0097] As Figure 6 and Figure 7As shown in the figure, the work device 200 includes a floating unit 210 and a work unit 220. The floating unit 210 includes a floating device 211, a floating towing rope 212, a floating fixing member 213 provided on the floating towing rope 212, a floating auxiliary towing rope 214 and a floating auxiliary fixing rope 215 connected to the floating fixing member 213, and a floating connecting member 216 provided at the end of the floating towing rope 212. The floating device 211 is used to provide an upward pulling force for the work unit 220.

[0098] The work unit 220 includes a work parachute 221, a parachute top member 222 and a parachute tail member 223 provided at both ends of the work parachute 221, a work towing rope 224 passing through the work parachute 221, a work fixing member 225 provided on the work towing rope 224, a work auxiliary towing rope 226 and a work auxiliary fixing rope 227 connected to the work fixing member 225, a first connecting member 228 and a second connecting member 229 provided at both ends of the work towing rope 224, and a counterweight 231 connected to the work auxiliary towing rope 226. When there is more than one work unit 220, only a counterweight 231 needs to be configured at the end of the work auxiliary towing rope 226 of the last work unit 220. The function of the counterweight 231 is to keep the work auxiliary towing rope 226 in a drooping state. The first connecting member 228 and the second connecting member 229 are used to connect to other units adjacent to the work unit 220 (in this example, the first connecting member 228 is provided at the head of the work parachute 221 and is connected to the floating connecting member 216 of the floating unit 210, and the second connecting member 229 is provided at the tail of the work parachute 221 and is connected to the extended part of the main towing rope 100). A through hole is provided on the work fixing member 225, through which the floating auxiliary towing rope 214 or the work auxiliary towing rope 226 can pass. The work fixing member 225 is fixedly connected to the work auxiliary towing rope 226 and can withstand the pulling force that drags the work unit 220 downward. The parachute top member 222 and the parachute tail member 223 can be fixedly connected or have relative displacement with the work towing rope 224. The parachute top member 222 and the parachute tail member 223 are used to open and close the work parachute 221. Through holes are also provided on the parachute top member 222 and the parachute tail member 223, through which the floating auxiliary towing rope 214 or the work auxiliary towing rope 226 can pass. The floating connecting member 216 is detachably connected to the floating towing rope 212, and / or, the first connecting member 228 and the second connecting member 229 are detachably connected to the work towing rope 224.

[0099] The installation platform 400 includes a winch 410, a fixed connection seat 420 and a pulley 430. The fixed connection seat 420 is used to fix the floating auxiliary fixing rope 215 and the work auxiliary fixing rope 227. The pulley 430 is used in cooperation with the winch 410. A main connecting member 110 is provided at the end of the extended part of the main towing rope 100.

[0100] The wind power generation method for the wind power generation system corresponding to the above example includes the following processes.

[0101] As Figure 8 shown, first clean the installation platform 400, connect the floating auxiliary fixing rope 215 of the floating unit 210 to the fixed connection seat 420, and the floating auxiliary fixing rope 215 is in a taut state. As Figure 9 shown, then connect the first connecting piece 228 of the work unit 220 and the floating connecting piece 216 of the floating unit 210, and pass the floating auxiliary towing rope 214 through the umbrella top piece 222, umbrella tail piece 223 and floating fixing piece 213 of the work unit 220. At this time, the work umbrella 221 is in a closed state. As Figure 10 and Figure 11 shown, connect the floating auxiliary towing rope 214 to the winch 410 through the pulley 430, and use the winch 410 to tighten the floating auxiliary towing rope 214 until the floating auxiliary fixing rope 215 is in a relaxed state. As Figure 12 shown, disconnect the connection between the floating auxiliary fixing rope 215 and the fixed connection seat 420, connect the work auxiliary fixing rope 227 of the work unit 220 to the fixed seat, and then use the winch 410 to tighten the work auxiliary fixing rope 227. As Figure 13 shown, after the work auxiliary fixing rope 227 is tightened, disconnect the connection between the winch 410 and the floating auxiliary towing rope 214, connect the floating auxiliary towing rope 214 to the main connecting piece 110 of the main towing rope 100, and connect the second connecting piece 229 of the work towing rope 224 to the main connecting piece 110 of the main towing rope 100. As Figure 14 shown, then connect the work auxiliary towing rope 226 of the work unit 220 to the winch 410 through the pulley 430, gradually tighten the work auxiliary towing rope 226 until the work auxiliary fixing rope 227 is relaxed, and disconnect the connection between the work auxiliary fixing rope 227 and the fixed connection seat 420. As Figure 15 shown, continue to release the work auxiliary towing rope 226 until the main towing rope 100 is tightened and the work auxiliary towing rope 226 is relaxed, and then disconnect the connection between the work auxiliary towing rope 226 and the winch 410. As Figure 16 shown, connect a counterweight 231 to the end of the work auxiliary towing rope 226, so that when the work device 200 is in a suspended state, the work auxiliary towing rope 226 remains in a hanging state to facilitate the subsequent recovery of the work device 200. The subsequent recovery process of the work device 200 is reverse to the above process, and this application does not elaborate on this.

[0102] It can be understood that the specific examples in this specification are only to help those skilled in the art better understand the implementation manners of this application, rather than limiting the protection scope of this application.

[0103] It can be understood that the various embodiments described in this specification can be implemented alone or in combination, and the present application does not limit this.

[0104] Unless otherwise specified, all technical and scientific terms used in this specification have the same meaning as commonly understood by those skilled in the technical field of this specification. The terms used in this specification are only for the purpose of describing specific embodiments and are not intended to limit the scope of this specification. The term "and / or" used in this specification includes any and all combinations of one or more of the related listed items. The singular forms of "a", "the above" and "the" used in this specification and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0105] Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the above-described embodiments can refer to the corresponding processes in other embodiments and will not be elaborated here.

[0106] In the several embodiments provided in this specification, it should be understood that the disclosed systems, devices and methods can be implemented in other ways.

[0107] The above is only the specific embodiment of this specification, but the protection scope of the present application is not limited thereto. Any person skilled in the technical field can easily think of changes or substitutions within the technical scope disclosed in this specification and should be covered by the protection scope of this specification. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A wind power generation system, characterized in that, Comprising: A main towing rope; A power generation device for receiving wind energy in the high altitude and converting the wind energy into mechanical energy; The power generation device includes a floating unit and at least one power generation unit; A base station for receiving the mechanical energy from the power generation device and converting the mechanical energy into electrical energy; the base station includes a power generation unit, a lifting pile and a supporting unit, the power generation unit is connected to the power generation device through the main towing rope; the supporting unit is used to support the lifting pile so that the lifting pile is higher than the ground, and the main towing rope passes through the lifting pile and extends out of the lifting pile; Wherein, in the suspended state of the power generation device, the main towing rope is in a taut state, so that when the extended part of the main towing rope rotates under the action of wind force, it does not come into contact with the objects in the surrounding environment below the lifting pile. The supporting unit adopts a hollow structure, and the lifting pile is installed on the top of the supporting unit; an accommodating space is formed in the supporting unit, the power generation unit is arranged in the accommodating space, the main towing rope passes through the accommodating space, and the base station further includes a lifting device arranged inside the accommodating space, and the lifting device is used to drive the operator to lift and lower to maintain the lifting pile.

2. The wind power generation system according to claim 1, wherein The lifting pile is a universal rotating structure.

3. The wind power generation system according to claim 1, characterized in that, The shape of the supporting unit is conical, cylindrical, bullet-shaped or polyhedral; and / or, At least one opening is formed on the side wall of the supporting unit to facilitate the operator to enter and exit; and / or, At least part of the side wall of the supporting unit is made of transparent material.

4. A wind energy power generation method, characterized in that, Applicable to the wind power generation system according to any one of claims 1-3, the wind power generation system further includes an installation platform, and the method includes: Using the installation platform to release the floating unit and at least one power generation unit; wherein, before releasing the last power generation unit, connecting the last power generation unit to the extended part of the main towing rope; Using the at least one power generation unit to receive wind energy in the high altitude and convert the wind energy into mechanical energy; Using the power generation unit to receive the mechanical energy from the at least one power generation unit and convert the mechanical energy into electrical energy; When the extended part rotates under the action of wind force, using the lifting pile to maintain the non-contact state between the extended part and the objects in the surrounding environment below the lifting pile.

5. The wind energy power generation method according to claim 4, characterized in that The installation platform includes a winch and a fixed connection seat, and the process of using the installation platform to release the floating unit includes: Connecting the floating unit to the fixed connection seat; Connecting the first power generation unit to the floating unit; Connecting the floating unit to the winch; Disconnecting the floating unit from the fixed connection seat; Using the winch to release the floating unit.

6. The wind power generation method according to claim 5, characterized in that, The process of using the installation platform to release the at least one power generation unit includes: Connecting the i-th power generation unit to the fixed connection seat, where i is a positive integer; Connecting the (i + 1)-th power generation unit to the i-th power generation unit; Connecting the i-th power generation unit to the winch; Disconnecting the i-th power generation unit from the fixed connection seat; Using the winch to release the i-th power generation unit; Disconnect the connection between the i-th working unit and the winch.

7. The wind energy power generation method according to claim 4, characterized in that, When the previous unit of the working unit is the floating unit, the auxiliary towing rope of the floating unit passes through the working unit and is connected to the next unit of the working unit.

8. The wind power generation method according to claim 4, characterized in that When the next unit of the working unit is the power generation unit, the auxiliary towing rope of the previous unit of the working unit passes through the working unit and is connected to the extended part of the main towing rope.

9. A base station, which is used in the wind power generation system according to any one of claims 1-3, is characterized in that, The wind power generation system includes a main towing rope and a working device. The base station is used to receive the mechanical energy from the working device and convert the mechanical energy into electrical energy. The base station includes a power generation unit, a lifting pile and a support unit. The power generation unit is connected to the working device through the main towing rope; the support unit is used to support the lifting pile so that the lifting pile is higher than the ground, and the main towing rope passes through the lifting pile and extends out of the lifting pile. Among them, in the suspended state of the working device, the main towing rope is in a taut state, so that when the extended part of the main towing rope rotates under the action of wind force, it does not come into contact with the objects in the surrounding environment below the lifting pile.

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