Aerostat wind power generation system and method of assembly thereof

Abstract

This application provides an airborne wind power generation system and its assembly method, relating to the field of airship assembly technology. The assembly method for the airborne wind power generation system includes the following steps: S1, at the assembly site, assembling system components into an intermediate body with the main airbag in a vertical orientation; S2, during or after the assembly of the intermediate body, filling at least one airbag component with buoyancy gas to generate net buoyancy in the intermediate body to assist subsequent assembly operations; S3, with the assistance of net buoyancy, completing the installation of the remaining system components to assemble the power generation system; S4, adjusting the attitude of the power generation system from a vertical orientation to a horizontal operating orientation. This application solves the problems of low efficiency and high risk in assembling ultra-large airborne wind power generation systems in field environments using traditional flat-lying assembly methods, achieving a more efficient, safer, and adaptable airborne wind power generation system assembly method for complex field environments.

Description

Technical Field

[0001] This application relates to the field of airship assembly technology, and in particular to an airship wind power generation system and its assembly method. Background Technology

[0002] Aerial wind power systems, by mounting wind turbine units on an aerostat platform, can generate electricity using stable and strong wind resources at high altitudes, representing an important development direction in the field of clean energy. Reliable deployment and efficient assembly of the system are crucial for its practical application; therefore, appropriate assembly methods are needed to ensure this process.

[0003] Currently, the traditional ground-based flat assembly method is mainly used when deploying such systems in the field. This method requires all components, such as the main airbag, ring wings, tail fin, and large steel support frame, to be laid out horizontally on the work site, and then transported and connected sequentially using large hoisting equipment.

[0004] The above-mentioned method, which relies entirely on large hoisting equipment for horizontal installation and docking in the field without factory buildings, results in long operation cycles, difficulty in precision control, and great environmental constraints when assembling ultra-large and complex floating wind power generation systems. This leads to low overall assembly efficiency and high safety risks. Summary of the Invention

[0005] This application provides a floating wind power generation system and its assembly method to solve the problems of low efficiency and high risk in the traditional flat assembly method when assembling ultra-large floating wind power generation systems in the field environment, and realize a more efficient, safe and adaptable floating wind power generation system assembly method in complex field environments.

[0006] This application provides a method for assembling a floating wind power generation system, wherein the system components of the power generation system include a main airbag. The assembly method includes the following steps:

[0007] At the assembly site, the system components are assembled into an intermediate body in which the main airbag is in a vertical position;

[0008] During or after the assembly of the intermediate, buoyancy gas is introduced into at least one airbag component in the system components to generate net buoyancy in the intermediate to assist subsequent assembly operations.

[0009] With the assistance of the net buoyancy, the installation of the remaining system components is completed to achieve the assembly of the power generation system;

[0010] Adjust the attitude of the power generation system to change it from the vertical attitude to the horizontal operating attitude.

[0011] According to the assembly method of the floating wind power generation system provided in the embodiments of this application, the system components further include: a ring wing, a tail wing, and a wind power support frame, wherein the ring wing, the tail wing, and the main airbag constitute the airbag component;

[0012] The step of assembling the system components into an intermediate body with the main airbag in a vertical position at the assembly site includes:

[0013] Clean the assembly area and lay down protective tarpaulins;

[0014] After the ring wings are unfolded on the protective fabric, they are constrained in multiple directions;

[0015] The plurality of tail fins are sequentially connected to the outside of the annular fin;

[0016] The wind turbine support frame is connected to the inner ring of the annular wing;

[0017] The main airbag is vertically inserted through the wind turbine support frame and the ring wing, and then connected to the wind turbine support frame.

[0018] According to the assembly method of the floating wind power generation system provided in the embodiments of this application, the step of performing multi-directional constraint after unfolding the annular wing on the protective cloth includes:

[0019] The annular wings are deployed onto the protective fabric;

[0020] Multiple winches are arranged around the outer periphery of the ring wing, and the winches are connected to the ring wing via connecting ropes. The winches apply flexible constraints to the ring wing through the connecting ropes to regulate and stabilize the attitude of the ring wing during assembly and attitude adjustment.

[0021] According to the assembly method of the floating wind power generation system provided in this application, the step of filling at least one airbag component of the system components with buoyancy gas during or after the assembly of the intermediate body includes:

[0022] Helium is introduced into the annular wing and the main airbag until the buoyancy generated in the annular wing and the main airbag reaches 1.2 to 1.5 times the total weight of the intermediate body;

[0023] Alternatively, helium may be introduced into the annular wing and the main airbag, and air may be introduced into the tail wing, until the buoyancy generated in the annular wing, the tail wing, and the main airbag reaches 1.2 to 1.5 times the total weight of the intermediate body.

[0024] According to the assembly method of the floating wind power generation system provided in the embodiments of this application, the step of completing the installation of the remaining system components with the assistance of the net buoyancy to realize the assembly of the power generation system includes:

[0025] With the assistance of the net buoyancy, the annular support frame is placed inside the annular wing through the main airbag, and the outer ring side of the annular support frame is connected to the annular wing, while the inner ring side of the annular support frame is connected to the main airbag.

[0026] According to the assembly method of the floating wind power generation system provided in the embodiments of this application, the step of adjusting the attitude of the power generation system to change it from the vertical attitude to the horizontal operating attitude includes:

[0027] The main airbag is connected to the mooring system via the connecting rope. The mooring system applies flexible constraints to the main airbag via the connecting rope to regulate and stabilize the attitude of the main airbag during attitude adjustment.

[0028] Adjust the gas pressure distribution within the ring wing and the main airbag, and coordinate with the traction force of the anchoring system and the winding and unwinding operation of the winch to control the intermediate body to rotate at a preset angular velocity to a horizontal running posture.

[0029] According to the assembly method of the floating wind power generation system provided in the embodiments of this application, the preset angular velocity is 2° / min to 4° / min.

[0030] According to the assembly method of the floating wind power generation system provided in the embodiments of this application, the step of adjusting the attitude of the power generation system to change its attitude from vertical to horizontal is carried out under meteorological conditions where the real-time wind speed is less than 5 m / s.

[0031] According to the assembly method of the floating wind power generation system provided in the embodiments of this application, the length of the main airbag is 50m-70m, and the diameter of the main airbag is 15m-20m.

[0032] The outer diameter of the ring wing is 35m-45m, and the inner diameter of the ring wing is 25m-35m.

[0033] This application also provides a floating wind power generation system, including:

[0034] Ring wing;

[0035] Multiple tail fins are spaced apart outside the annular fin;

[0036] The wind turbine support frame is located in the inner ring of the wing;

[0037] A ring-shaped support frame, spaced apart from the wind turbine support frame, is located in the inner ring of the ring wing and is used to support the tail wing;

[0038] The main airbag passes through the wind turbine support frame and the wing support frame, and is connected to the wind turbine support frame and the wing support frame.

[0039] This application provides a floating wind power generation system and its assembly method. By setting the assembly reference to a vertical orientation, it changes the reliance of traditional horizontal assembly on large-area paved sites, making it possible to connect ultra-large components in limited outdoor spaces. Net buoyancy assistance is introduced in the later stages of assembly, utilizing the system's own aerodynamic characteristics to counteract gravity. This reduces the stringent requirements on the tonnage and precision of large external hoisting equipment, simplifies the hoisting process, and reduces safety risks caused by improper operation of heavy equipment. Staged gas filling enhances the controllability of the assembly process, allowing dynamic adjustment of the system's stress state according to the assembly progress. This effectively copes with wind disturbances in the field environment, ensuring that each assembly step is carried out under controllable buoyancy and constraint conditions, thereby systematically improving the efficiency and safety of assembly in complex outdoor environments. Attached Figure Description

[0040] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0041] Figure 1 A flowchart of the floating wind power generation system and its assembly method provided in this application;

[0042] Figure 2 One of the physical state diagrams of the floating wind power generation system and its assembly method provided in this application;

[0043] Figure 3 The second physical state diagram of the floating wind power generation system and its assembly method provided in this application;

[0044] Figure 4 The third physical state diagram of the floating wind power generation system and its assembly method provided in this application;

[0045] Figure 5 The fourth physical state diagram of the floating wind power generation system and its assembly method provided for this application;

[0046] Figure 6 Fifth physical state diagram of the floating wind power generation system and its assembly method provided in this application;

[0047] Figure 7 The sixth physical state diagram of the floating wind power generation system and its assembly method provided in this application;

[0048] Figure 8 The seventh physical state diagram of the floating wind power generation system and its assembly method provided for this application;

[0049] Figure 9The eighth physical state diagram of the floating wind power generation system and its assembly method provided for this application;

[0050] Figure 10 The ninth physical state diagram of the floating wind power generation system and its assembly method provided in this application;

[0051] Figure 11 The tenth physical state diagram of the floating wind power generation system and its assembly method provided for this application.

[0052] Explanation of reference numerals in the attached figures:

[0053] 100: Ring wing; 200: Tail wing; 300: Main airbag; 400: Wind turbine support frame; 500: Ring wing support frame; 600: Winch; 700: Connecting rope; 800: Anchoring system; 900: Protective cloth; 10: Lifting equipment. Detailed Implementation

[0054] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0055] As described in the background section, air-floating wind power generation systems utilize stable and strong wind energy resources at high altitudes by mounting wind power units on an airship platform, representing an important development direction in the field of clean energy. Reliable deployment and efficient assembly of the system are crucial for its practical application; therefore, appropriate assembly methods are needed to ensure this process.

[0056] Currently, the traditional ground-based flat assembly method is mainly used when deploying such systems in the field. This method requires all components, such as the main airbag, ring wings, tail fin, and large steel support frame, to be laid out horizontally on the work site, and then transported and connected sequentially using large hoisting equipment.

[0057] The above-mentioned method, which relies entirely on large hoisting equipment for horizontal installation and docking in the field without factory buildings, results in long operation cycles, difficulty in precision control, and great environmental constraints when assembling ultra-large and complex floating wind power generation systems. This leads to low overall assembly efficiency and high safety risks.

[0058] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0059] Reference Figure 1 This application provides a method for assembling a floating wind power generation system, wherein the system components of the power generation system include a main airbag 300. The assembly method includes the following steps:

[0060] S1. At the assembly site, assemble the system components into an intermediate body in which the main airbag 300 is in a vertical position;

[0061] S2. During or after the assembly of the intermediate, buoyancy gas is introduced into at least one airbag component in the system components to generate net buoyancy in the intermediate to assist subsequent assembly operations.

[0062] S3. With the assistance of net buoyancy, complete the installation of the remaining system components to achieve the assembly of the power generation system;

[0063] S4. Adjust the attitude of the power generation system to change it from a vertical attitude to a horizontal operating attitude.

[0064] Specifically, the vertical attitude refers to the state where the long axis of the main airbag 300 is perpendicular to the ground, with one end of the main airbag 300 in contact with or close to the ground and the other end pointing upwards. The intermediate body refers to the transitional structure during assembly, which does not yet include all system components but already possesses the foundation for generating net buoyancy. The horizontal operating attitude refers to the state when the power generation system is operating normally, in which the long axis of the main airbag 300 is approximately parallel to the ground to facilitate the utilization of high-altitude wind energy.

[0065] During implementation, the main airbag 300 intermediate body is first assembled in a vertical position on a selected flat field site. This process can involve some rigid or flexible connections on the ground. After assembly, or during the assembly process, buoyancy gas, such as helium, is selectively injected into one or more airbag components constituting the intermediate body. As the gas is injected, the intermediate body gradually generates upward net buoyancy, reducing the ground pressure on the entire structure and even causing it to slowly rise. This net buoyancy can then be used to assist in the installation of the remaining system components, such as heavier support structures. With the net buoyancy distributing the main weight of the components, operators or auxiliary equipment can more easily and accurately position and connect them. After all components are installed, a series of operations are performed to adjust the spatial orientation of the entire power generation system, smoothly transitioning it from a vertical position suitable for assembly to a horizontal operating position suitable for power generation and mooring.

[0066] This embodiment sets the assembly reference to a vertical orientation, changing the reliance of traditional flat assembly on large, horizontally paved areas, making it possible to connect ultra-large components in limited outdoor spaces. The introduction of net buoyancy assistance in the later stages of assembly utilizes the system's aerodynamic characteristics to counteract gravity. This reduces the stringent requirements on the tonnage and precision of large external hoisting equipment, simplifies the hoisting process, and reduces safety risks caused by improper operation of heavy equipment. Phased gas filling (inflating after assembly, and re-inflating or pressurizing before attitude adjustment) enhances the controllability of the assembly process, allowing for dynamic adjustment of the system's stress state according to the assembly progress. This effectively addresses wind disturbances in the field environment, ensuring that each assembly step is carried out under controllable buoyancy and constraint conditions, thereby systematically improving the efficiency and safety of assembly in complex outdoor environments.

[0067] Reference Figures 2 to 7 In some embodiments of this application, the system components further include: a ring wing 100, a tail wing 200, and a wind turbine support frame 400, wherein the ring wing 100, the tail wing 200, and the main airbag 300 constitute an airbag component; step S1 includes:

[0068] S1.1 Clean the assembly site and lay down 900mm protective cloth;

[0069] S1.2 After unfolding the ring wing 100 on the protective cloth 900, perform multi-directional restraint;

[0070] S1.3 Connect multiple tail fins 200 sequentially to the outside of the ring fin 100;

[0071] S1.4 Connect the wind turbine support frame 400 to the inner ring of the ring blade 100;

[0072] S1.5 After the main airbag 300 passes through the wind turbine support frame 400 and the ring wing 100 in a vertical position, it is connected to the wind turbine support frame 400.

[0073] Specifically, the protective fabric 900 is a large, flexible material laid on the ground in the assembly area, primarily used to protect the airbag components from scratches by sharp objects on the ground and to reduce contamination. Multi-directional restraint refers to limiting the degrees of freedom of the ring wing 100 through forces in multiple directions, preventing uncontrolled movement or tumbling during assembly. The inner ring of the ring wing 100 refers to the central area enclosed by its annular structure, where the wind turbine support frame 400 is installed.

[0074] During implementation, the field site is first cleared and leveled, followed by the laying of a large area of ​​protective fabric 900. The ring wing 100 is then unfolded into a ring on the protective fabric 900, and its outer perimeter is immediately secured using external facilities (such as temporary anchors and ropes) to achieve multi-directional restraint and prevent it from being blown away by the wind. Next, according to the preset orientation, multiple tail fins 200 are connected one by one to the designated interfaces on the outer side of the ring wing 100. Afterward, the wind turbine support frame 400 is hoisted to above the unfolded area of ​​the ring wing 100 using hoisting equipment 10, and slowly lowered so that it accurately falls into the inner circle of the ring wing 100, completing the connection between the two. Finally, the main airbag 300, which is in a folded or partially inflated state, is lifted vertically so that its lower end first passes through the central opening of the wind turbine support frame 400 and the ring wing 100, and is gradually lowered until its bottom end contacts or approaches the protective cloth 900. Then, the connection point of the main airbag 300 is firmly connected to the wind turbine support frame 400, thereby forming an intermediate structure with the vertical main airbag 300 as the axis.

[0075] In this embodiment, the ring wing 100 is used as the initial assembly reference and constrained to the ground, providing a stable and directionally clear reference platform for the subsequent installation of the tail wing 200 and the wind turbine support frame 400. Installing the wind turbine support frame 400 within the inner ring of the ring wing 100 pre-builds a rigid positioning and support frame for the main airbag 300 that subsequently penetrates it, ensuring precise alignment of the main airbag 300 during vertical hoisting and descent. Finally, the main airbag 300 is vertically penetrated and connected, completing the construction of the core load-bearing structure of the intermediate body. This sequence, from the outer ring to the inner ring, from ground constraint to aerial hoisting, allows for the orderly connection of multiple large rigid-flexible components, significantly reducing the coordination difficulty and misalignment risk of assembling complex systems in a factory-free environment.

[0076] Reference Figures 2 to 4 In some embodiments of this application, step S1.2 includes:

[0077] S1.2.1 Deploy the annular wing 100 on the protective cloth 900;

[0078] S1.2.2 Multiple winches 600 are arranged around the outer periphery of the ring wing 100. The winches 600 are connected to the ring wing 100 through connecting ropes 700. The winches 600 apply flexible constraints to the ring wing 100 through the connecting ropes 700 to regulate and stabilize the attitude of the ring wing 100 during assembly and attitude adjustment.

[0079] Specifically, the winch 600 is a mechanical device with a hoisting function, which applies tension by winding and unwinding the connecting rope 700. The connecting rope 700 is a high-strength cable connecting the winch 600 and the ring wing 100. Flexible restraint refers to a restraint method applied by a flexible body such as a rope, which allows the restrained object to move and deform within a certain range, and is different from rigid mechanical locking.

[0080] During implementation, after the wing 100 is deployed on the protective fabric 900, winches 600 are arranged at multiple equally spaced points around its perimeter. Each winch 600 is connected to a dedicated pull ring or reinforced connection point on the outer surface of the wing 100 via an independent connecting rope 700. By coordinating the raising and lowering of these winches 600, a controllable tension force of magnitude and direction can be applied to the wing 100. During the assembly of the wind turbine support frame 400 and the main airbag 300, the winches 600 can stabilize the wing 100 and resist swaying or wind load caused by hoisting. In the subsequent attitude adjustment stage, by precisely controlling the raising and lowering of the winches 600 at different positions, the tilt angle and rotation direction of the wing 100 can be actively adjusted, thereby guiding the entire intermediate body to achieve a smooth attitude transition.

[0081] This embodiment provides an active and adjustable stabilization and control mechanism by arranging winches 600 around the outer periphery of the wing 100 and applying flexible constraints. Compared with rigid supports, flexible constraints allow the wing 100 and its connecting components to undergo a certain degree of elastic deformation under stress, which can absorb and buffer external impacts (such as gusts of wind) and internal stress changes, preventing structural damage. The distributed arrangement of multiple winches 600 enables multi-degree-of-freedom control of the wing 100's attitude, allowing operators to finely adjust the wing 100's levelness, orientation, and resistance to rollover based on real-time conditions. This control method based on flexible constraints and distributed tension is particularly suitable for dealing with uncertain wind disturbances and complex stress states in field environments, ensuring stability and controllability throughout the entire process from assembly to attitude rollover.

[0082] Reference Figure 8 In some embodiments of this application, step S2 includes: filling the annular wing 100 and the main airbag 300 with helium until the buoyancy generated in the annular wing 100 and the main airbag 300 reaches 1.2 to 1.5 times the total weight of the intermediate body; or, step S2 includes: filling the annular wing 100 and the main airbag 300 with helium and filling the tail wing 200 with air until the buoyancy generated in the annular wing 100, the tail wing 200 and the main airbag 300 reaches 1.2 to 1.5 times the total weight of the intermediate body.

[0083] In one implementation method, helium is simultaneously or sequentially injected into the annular wing 100 and the main airbag 300 via a piping system. As helium is injected, the volumes of the annular wing 100 and the main airbag 300 expand, gradually increasing the total buoyancy. The inflation process continues until, according to calculations and monitoring, this total buoyancy reaches 1.2 to 1.5 times the total weight of the assembled intermediate body (including the annular wing 100, tail wing 200, main airbag 300, wind turbine support frame 400, etc.). At this point, the intermediate body experiences a significant upward net buoyancy.

[0084] In another implementation, in addition to filling the annular wing 100 and main airbag 300 with helium, air is also filled into the tail wing 200. Although the net buoyancy provided by air is small, inflating the tail wing 200 increases its structural rigidity, making it easier to maintain its shape and participate in aerodynamic control during subsequent folding. When calculating the total buoyancy, the helium buoyancy generated by the annular wing 100 and main airbag 300 is considered together with the air buoyancy generated by the tail wing 200 (which is usually small and mainly serves a shaping function), and the sum should reach 1.2 to 1.5 times the total weight of the intermediate body.

[0085] This embodiment provides scientific mechanical guidance for the assembly process by setting a clear inflation target (buoyancy of 1.2 to 1.5 times the weight). Net buoyancy greater than gravity (a multiple greater than 1) ensures that the intermediate body can float stably or significantly reduce pressure on the supports, creating a "low gravity" environment for installing the remaining heavy components such as the ring wing support frame 500, greatly reducing the difficulty of hoisting and the accuracy requirements for docking. This multiple range was chosen through a trade-off: the lower limit ensures sufficient auxiliary force, while the upper limit avoids the risk of excessive buoyancy leading to the system rising too quickly and becoming difficult to restrain and control. Inflating the tail wing 200 as an optional solution increases the flexibility of the method; that is, in situations where the tail wing 200 needs to provide structural rigidity or assist in aerodynamic stability as early as possible, it can be incorporated into the work earlier by inflation.

[0086] In other possible embodiments, the inflation process can employ a dynamic balancing method. That is, while inflating, the ground pressure or height of the intermediate body is monitored in real time. When the intermediate body begins to slowly float off the ground to a predetermined small height (e.g., 0.5 meters), it is determined that the net buoyancy is approximately equal to the weight, and then a small amount of gas is added to reach the target multiple. This method relies on actual physical feedback, reducing errors that may arise from relying on theoretical weight calculations. This embodiment, by employing a dynamic inflation control strategy based on real-time physical feedback, can more accurately bring the system to the expected buoyancy state, avoiding buoyancy control deviations caused by inaccurate weight estimation or changes in gas density, thus enhancing the reliability and adaptability of process control.

[0087] Reference Figure 9In some embodiments of this application, with the assistance of net buoyancy, step S3 includes: with the assistance of net buoyancy, placing the ring wing support frame 500 through the main airbag 300 in the inner ring of the ring wing 100, connecting the outer ring side of the ring wing support frame 500 to the ring wing 100, and connecting the inner ring side of the ring wing support frame 500 to the main airbag 300.

[0088] Specifically, the annular support frame 500 is a rigid support frame installed on the inner ring of the annular wing 100 to strengthen the structure of the annular wing 100 and connect the main airbag 300. The assistance of net buoyancy is reflected in the fact that when the overall weight of the intermediate body is largely offset by buoyancy, the installation of the annular support frame 500 does not need to bear its full weight. The lifting or pushing force is mainly used to overcome inertia, friction, and to make fine-tuning of attitude.

[0089] During implementation, once the annular wing 100 and main airbag 300 generate sufficient net buoyancy, placing the intermediate body in a state of slight levitation or minimal ground pressure, the annular wing support frame 500 is installed. Using a ground-based moving platform or lightweight lifting equipment, the annular wing support frame 500 is moved horizontally to directly beneath the intermediate body, aligning its center hole with the vertical main airbag 300. Then, the annular wing support frame 500 is lifted upwards along the axis of the main airbag 300, passing through the main airbag 300 and entering the inner space of the annular wing 100.

[0090] During this process, the main airbag 300 is straightened by buoyancy, providing a clear passage for the ring wing support frame 500 to pass through. After the ring wing support frame 500 reaches the predetermined height, its outer edge is first fixed to the preset connection point of the inner ring of the ring wing 100, and then its inner edge is fixed to the corresponding connection structure on the outer wall of the main airbag 300, thereby completing the installation of the ring wing support frame 500 and connecting the ring wing 100, the main airbag 300 and the ring wing support frame 500 into one unit.

[0091] This embodiment installs the ring-wing support frame 500 under net buoyancy conditions, transforming traditional heavy-duty hoisting operations into precision docking operations in a near-weightless state. This significantly reduces the lifting capacity requirements of the hoisting equipment 10, allowing for the use of lighter and more flexible handling equipment. The ring-wing support frame 500 is installed through the main airbag 300, a method of axial assembly that utilizes the natural central channel formed by the vertical orientation of the main airbag 300, avoiding the difficulties of large-scale lateral movement and circumferential installation required for large-sized ring components. This installation method is highly compatible with the overall concept of vertical assembly and is a key step in achieving the assembly of ultra-large structures under limited space and simple equipment conditions.

[0092] Reference Figure 10 and Figure 11 In some embodiments of this application, step S4 includes:

[0093] S4.1 Connect the main airbag 300 to the mooring system 800 via the connecting rope 700. The mooring system 800 applies flexible constraints to the main airbag 300 via the connecting rope 700 to regulate and stabilize the attitude of the main airbag 300 during attitude adjustment.

[0094] S4.2 Adjust the gas pressure distribution in the ring wing 100 and the main airbag 300, and coordinate with the traction force of the anchoring system 800 and the winding and unwinding operation of the winch 600 to control the intermediate body to rotate at a preset angular velocity to a horizontal running posture.

[0095] Specifically, the mooring system 800 is a device installed on the ground for the final fixation and adjustment of the power generation system's position, including a winch, mooring tower, and anchor chain. After being connected to the main airbag 300 via the connecting rope 700, the mooring system 800 can apply a horizontal traction force to the main airbag 300. Adjusting the gas pressure distribution refers to changing the pressure in different areas inside the annular wing 100 and the main airbag 300 by inflating, deflating, or transferring gas between different chambers, thereby affecting their overall center of gravity and aerodynamic shape.

[0096] During the process, before attitude adjustment begins, at least one main connecting rope 700 is led out from the mooring system 800 and connected to the head of the main airbag 300 or a dedicated mooring point near the head. Simultaneously, the winch 600 surrounding the annular wing 100 remains connected and under control. At the start of the adjustment, the gas volume in different parts of the annular wing 100 and the main airbag 300 is subtly altered via the inflation / deflation system; for example, slightly increasing the gas pressure at the head of the main airbag 300 to induce a slight upward tilt.

[0097] Simultaneously, the mooring system 800 begins to slowly tighten the connecting rope 700, applying a horizontal traction force to the head of the main airbag 300. The surrounding winches 600 work in coordination; some slowly release the connecting rope 700 to allow one side of the annular wing 100 to descend, while others tighten to provide auxiliary traction or resist excessive rotation. Through the precise coordination of these three systems (gas pressure regulation, mooring traction, and winch deployment / retraction), a controllable torque is generated, driving the originally vertical intermediate body to slowly and smoothly tilt horizontally around a virtual horizontal axis. The entire tilting process is controlled at a uniform speed to ensure stable force application and structural safety.

[0098] This embodiment organically combines internal aerodynamic adjustment (changing the center of gravity and shape by adjusting gas pressure distribution), front-end fixed-point traction (the mooring system 800 provides the main turning torque), and peripheral distributed control (the winch 600 provides stabilization and fine-tuning). Gas pressure adjustment provides the initial trend and internal force balance for turning; mooring traction provides continuous and directionally controllable main turning power; and the distributed winch 600 acts like "multiple invisible hands," correcting the turning trajectory in real time, suppressing swaying, and ensuring that the entire massive system rotates uniformly around the axis as a whole. This composite control strategy greatly enhances the stability, safety, and controllability of the attitude turning process, and is the core of ensuring safe attitude reconfiguration of ultra-large flexible structures in the field.

[0099] In other possible embodiments, the mooring system 800 may include multiple sets of traction points, each connected to a different position on the head of the main airbag 300, forming multi-point traction to make the tension distribution more uniform and avoid excessive stress at a single point. The connection point between the connecting rope 700 and the main airbag 300 can be designed as a connector with a universal joint function, allowing the tension direction to change naturally during the rollover process, reducing local shear forces on the airbag skin. This embodiment, by employing multi-point uniform traction and universal joints, makes the application of the rollover torque more gentle and uniform, effectively reducing the structural load on the connection area of ​​the head of the main airbag 300 during attitude transition, and further improving the structural safety of the rollover process.

[0100] In some embodiments of this application, in step S4.2, the preset angular velocity is 2° / min to 4° / min.

[0101] Specifically, the preset angular velocity refers to the angular velocity of the rotational motion of the system being controlled within a constant numerical range during the process of flipping from a vertical to a horizontal attitude, such as 2 to 4 degrees per minute.

[0102] During implementation, once the turning process begins by adjusting the gas pressure, initiating anchoring traction, and coordinating the winding and unwinding of the winch 600, the control system (which can be automatic or a combination of automatic observation and manual control) monitors the system's turning angle in real time. Through feedback control algorithms or operator experience, the traction speed of the anchoring system 800, the winding and unwinding speed of the winch 600, and, when necessary, fine-tuning the inflation and deflation of the gas supply are adjusted to ensure that the measured turning angular velocity is stably maintained within the preset range of 2° / min to 4° / min. For example, if the detected angular velocity is below 2° / min, the traction force is appropriately increased or the gas distribution is adjusted to increase torque; if the angular velocity is above 4° / min, the traction is reduced and part of the winch 600's rope is tightened to create a damping effect. This closed-loop control ensures that the entire 90-degree turning process proceeds slowly and uniformly.

[0103] This embodiment fundamentally ensures the structural safety and stability of the attitude transition process by setting and strictly controlling a low, uniform angular velocity. The flipping of an ultra-large floating structure involves enormous mass transfer and complex stress changes. Excessive angular velocity generates significant inertial forces and centrifugal effects, potentially leading to localized structural overload, increased stress at connection points, or tearing and folding of the airbag skin. Uniform angular velocity flipping, on the other hand, means that the angular acceleration is close to zero, thus minimizing inertial forces. The extremely low speed range of 2° / min to 4° / min allows the entire flipping process to last for tens of minutes, providing ample time for the structural stress to redistribute smoothly, enabling operators or automated systems to promptly detect and correct any attitude deviations.

[0104] In some embodiments of this application, step S4 is performed under meteorological conditions where the real-time wind speed is less than 5 m / s.

[0105] Specifically, real-time wind speed refers to the near-surface wind speed measured on-site at the assembly site during attitude adjustment operations. Meteorological conditions include various factors such as wind speed, precipitation, and lightning. Wind speeds less than 5 m / s typically correspond to level 2 winds or lower in the wind force rating, indicating light winds or calmer weather.

[0106] During implementation, real-time meteorological data must be acquired before performing the critical attitude adjustment step (i.e., flipping from vertical to horizontal). The meteorological window for initiating attitude adjustment is considered met only when monitoring data shows that the average wind speed and the instantaneous maximum wind speed are consistently less than 5 m / s for a sustained period (e.g., 10 minutes). If the wind speed exceeds this threshold, or if rainfall, thunderstorms, or other severe weather occur, the operation must be suspended until the weather improves. Within the window of favorable wind speeds, the attitude adjustment operation should be completed as quickly as possible to minimize exposure to changing weather conditions.

[0107] This embodiment provides crucial safety boundary control for high-risk operations by setting explicit meteorological activation conditions (wind speed < 5 m / s). During the attitude adjustment phase, the floating wind power generation system has a large wind-receiving area and is in a dynamically unbalanced transitional state, making it extremely sensitive to wind disturbances. When the wind speed exceeds 5 m / s, the wind load may interfere with or even overwhelm the adjustment capabilities of the attitude control system (winch 600, mooring system 800), leading to rollover, structural collision, or damage. Restricting operations to low-wind-speed windows effectively minimizes uncontrollable external disturbances, ensuring that attitude control remains dominant at all times.

[0108] In some embodiments of this application, the main airbag 300 has a length of 50m-70m and a diameter of 15m-20m; the outer diameter of the ring wing 100 is 35m-45m and the inner diameter of the ring wing 100 is 25m-35m.

[0109] Specifically, the length of the main airbag 300 refers to its maximum dimension along its long axis, and its diameter refers to its maximum cross-sectional dimension, typically the maximum outer diameter of the rotating structure. The outer diameter of the ring wing 100 refers to the diameter of the outermost part of the ring structure, and the inner diameter refers to the diameter of the central opening of the ring.

[0110] In one embodiment, the main airbag 300 can be 60 meters long and 18 meters in diameter; the annular wing 100 has an outer diameter of 40 meters and an inner diameter of 30 meters. Systems of this size have large and heavy components, posing significant challenges for traditional flat-lying assembly. This method, however, effectively addresses these challenges through vertical assembly and buoyancy assistance. During assembly, the vertical main airbag 300 occupies a relatively small ground projection area, and after the annular wing 100 is laid flat, its outer diameter constitutes the main horizontal working area. This method allows for efficient space organization within this dimensional range.

[0111] Reference Figure 8 and Figure 9 This application also provides a floating wind power generation system, including a ring wing 100, multiple tail fins 200, a main airbag 300, a wind power support frame 400, and a ring wing support frame 500. The multiple tail fins 200 are spaced apart on the outside of the ring wing 100; the wind power support frame 400 is located in the inner ring of the ring wing 100; the ring wing support frame 500 and the wind power support frame 400 are spaced apart in the inner ring of the ring wing 100 and are used to support the tail fins 200; the main airbag 300 passes through the wind power support frame 400 and the ring wing support frame 500, and is connected to the wind power support frame 400 and the ring wing support frame 500.

[0112] Specifically, the annular wing 100 is a large annular airbag structure. The tail wing 200 consists of multiple independent airbags or wing structures, spaced apart on the outer side of the annular wing 100, used to provide aerodynamic stability. The wind turbine support frame 400 is a rigid frame located within the annular wing 100, used to mount equipment such as wind turbines. The annular wing support frame 500 is another rigid frame located within the annular wing 100 and spaced axially from the wind turbine support frame 400; its main function is to strengthen the structure of the annular wing 100 and provide intermediate support for the main airbag 300. The main airbag 300 is a slender, giant airbag whose axis passes sequentially through the centers of the wind turbine support frame 400 and the annular wing support frame 500, and is fixedly connected to the support frames at both points.

[0113] In the aforementioned structure, the ring wing 100, wind turbine support frame 400, and ring wing support frame 500 together constitute a composite support system. The ring wing 100, acting as the external buoyancy ring and aerodynamic ring, provides the main static buoyancy and a portion of the aerodynamic lift. The wind turbine support frame 400 and ring wing support frame 500, as internal rigid skeletons, are embedded in the inner ring of the ring wing 100, not only supporting the ring wing 100 to maintain its annular shape, but more importantly, providing two key axial positioning and radial constraint points for the main airbag 300 that runs through it. This design allows the slender main airbag 300 to receive effective intermediate support over a span of tens of meters, preventing excessive bending deformation during wind loads or movement. Multiple tail fins 200 are distributed around the outer periphery of the ring wing 100, increasing the system's aerodynamic damping and directional stability. The entire structure exhibits the characteristics of "flexible exterior, rigid interior, axially continuous, and multi-point support," and its topology is adapted to the process flow of first vertically assembling the ring wing 100 and support frame, and then installing the main airbag 300 through it.

[0114] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the claims.

[0115] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A method for assembling a floating wind power generation system, wherein the system components of the power generation system include a main airbag (300), characterized in that, The assembly method includes the following steps: At the assembly site, the system components are assembled into an intermediate body in which the main airbag (300) is in a vertical position; During or after the assembly of the intermediate, buoyancy gas is introduced into at least one airbag component in the system components to generate net buoyancy in the intermediate to assist subsequent assembly operations. With the assistance of the net buoyancy, the installation of the remaining system components is completed to achieve the assembly of the power generation system; Adjust the attitude of the power generation system to change it from the vertical attitude to the horizontal operating attitude.

2. The assembly method of the floating wind power generation system according to claim 1, characterized in that, The system components also include: a ring wing (100), a tail wing (200), and a wind turbine support frame (400), wherein the ring wing (100), the tail wing (200), and the main airbag (300) constitute the airbag component; The step of assembling the system components into an intermediate body in a vertical position for the main airbag (300) at the assembly site includes: Clean the assembly area and lay down protective tarpaulin (900). After the ring wing (100) is deployed on the protective cloth (900), it is constrained in multiple directions; The plurality of tail fins (200) are sequentially connected to the outside of the annular fin (100); The wind turbine support frame (400) is connected to the inner ring of the annular wing (100); After the main airbag (300) passes through the wind power support frame (400) and the ring wing (100) in a vertical position, it is connected to the wind power support frame (400).

3. The assembly method of the floating wind power generation system according to claim 2, characterized in that, The step of performing multi-directional restraint after unfolding the annular wing (100) on the protective fabric (900) includes: The annular wing (100) is deployed on the protective fabric (900); Multiple winches (600) are arranged around the outer periphery of the ring wing (100). The winches (600) are connected to the ring wing (100) via connecting ropes (700). The winches (600) apply flexible constraints to the ring wing (100) via the connecting ropes (700) to regulate and stabilize the attitude of the ring wing (100) during assembly and attitude adjustment.

4. The assembly method of the floating wind power generation system according to claim 2 or 3, characterized in that, The step of filling at least one airbag component in the system components with buoyancy gas during or after the assembly of the intermediate includes: Helium is introduced into the annular wing (100) and the main airbag (300) until the buoyancy generated in the annular wing (100) and the main airbag (300) reaches 1.2 to 1.5 times the total weight of the intermediate body; Alternatively, helium may be introduced into the annular wing (100) and the main airbag (300), and air may be introduced into the tail wing (200) until the buoyancy generated in the annular wing (100), the tail wing (200), and the main airbag (300) reaches 1.2 to 1.5 times the total weight of the intermediate body.

5. The assembly method of the floating wind power generation system according to claim 4, characterized in that, The step of completing the installation of the remaining system components with the assistance of the net buoyancy to assemble the power generation system includes: With the aid of the net buoyancy, the ring wing support frame (500) is placed in the inner ring of the ring wing (100) through the main airbag (300), and the outer ring side of the ring wing support frame (500) is connected to the ring wing (100), and the inner ring side of the ring wing support frame (500) is connected to the main airbag (300).

6. The assembly method of the floating wind power generation system according to claim 3, characterized in that, The step of adjusting the attitude of the power generation system to change it from the vertical attitude to the horizontal operating attitude includes: The main airbag (300) is connected to the mooring system (800) via the connecting rope (700). The mooring system (800) applies flexible constraints to the main airbag (300) via the connecting rope (700) to regulate and stabilize the attitude of the main airbag (300) during attitude adjustment. Adjust the gas pressure distribution in the ring wing (100) and the main airbag (300), and coordinate with the traction force of the anchoring system (800) and the winding and unwinding operation of the winch (600) to control the intermediate body to rotate at a preset angular velocity to a horizontal running posture.

7. The assembly method of the floating wind power generation system according to claim 6, characterized in that, The preset angular velocity is 2° / min to 4° / min.

8. The assembly method of the floating wind power generation system according to any one of claims 1-3, characterized in that, The step of adjusting the attitude of the power generation system from the vertical attitude to the horizontal operating attitude is carried out under meteorological conditions where the real-time wind speed is less than 5 m / s.

9. The assembly method of the floating wind power generation system according to claim 2 or 3, characterized in that, The main airbag (300) has a length of 50m-70m and a diameter of 15m-20m. The outer diameter of the ring wing (100) is 35m-45m, and the inner diameter of the ring wing (100) is 25m-35m.

10. A floating wind power generation system, characterized in that, include: Ring Wing (100); Multiple tail fins (200) are spaced apart outside the annular fin (100); The wind turbine support frame (400) is located in the inner ring of the ring wing (100); The ring wing support frame (500) is spaced apart from the wind power support frame (400) in the inner ring of the ring wing (100) and is used to support the tail wing (200). The main airbag (300) passes through the wind turbine support frame (400) and the ring wing support frame (500), and is connected to the wind turbine support frame (400) and the ring wing support frame (500).

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