An adaptive wind speed wind power generation method, system and device

Abstract

This invention relates to the technical field of wind power generation, and proposes an adaptive wind speed wind power generation method, system, and device. The method includes the following steps: acquiring radial distance data and wind speed data of each adjustable segment blade of the wind turbine; calculating the target angle of attack of each adjustable segment blade; calculating the deviation between the target angle of attack and the current angle of attack of each adjustable segment blade, converting it into the rotation angle of the actuator motor, and sending it to the corresponding actuator motor of each adjustable segment blade; controlling each actuator motor to rotate according to the rotation angle, thereby driving the corresponding adjustable segment blade to rotate. This invention automatically matches a larger angle of attack according to the wind force, effectively reducing fatigue damage while ensuring lift and power generation efficiency. When the wind speed is too high, a safe angle of attack can be used to reduce the risk of sudden changes in local load, aerodynamic stall, and extreme loads, thereby effectively improving safety and extending service life.

Description

Technical Field

[0001] This invention relates to the technical field of wind power generation, and in particular to a wind power generation method, system and apparatus that adapts to wind speed. Background Technology

[0002] As a clean and renewable energy source, wind energy is playing an increasingly important role in the global energy structure. Wind turbines are the core equipment for converting wind energy into electricity. Among them, wind turbine blades, as key aerodynamic components for capturing wind energy, have their design, manufacturing, and operating conditions directly determining the efficiency, stability, and reliability of the entire wind power generation system.

[0003] With the continued growth in global demand for clean and renewable energy, wind power has become an important development direction. The blade design of wind turbine generators directly affects the energy capture efficiency and economy of the entire machine. There is a significant relative velocity gradient of the incoming flow along the radial direction of the blade. The relative velocity near the root is lower, requiring a larger angle of attack to generate sufficient lift, while the relative velocity at the far end is higher, requiring a smaller angle of attack to avoid aerodynamic stall or overload.

[0004] Traditional blades often employ fixed geometry or overall pitch adjustment. This overall adjustment is limited in response speed, resolution, and radial refinement capabilities, preventing the simultaneous achievement of optimal angle-of-attack distribution across all blade components. Consequently, under numerous operating conditions, this leads to deviations from the optimal aerodynamic shape and reduced power generation efficiency and fatigue life. Traditional wind turbine blades, mostly with fixed geometry or only overall pitch adjustment, cannot achieve fine-grained radial angle-of-attack optimization, resulting in limited energy capture efficiency, higher risks of localized aerodynamic overload, and fatigue damage. Summary of the Invention

[0005] To address the aforementioned shortcomings, the present invention aims to propose an adaptive wind speed wind power generation method, system, and device, thereby solving the problems of unstable power generation efficiency and unstable local load caused by the inability of existing technologies to adaptively adjust the angle of various parts of the blades.

[0006] To achieve this objective, the present invention adopts the following technical solution: An adaptive wind speed wind power generation method includes the following steps: S1, Obtain radial distance data of each adjustment segment of the wind turbine blade. Wind speed data ; S2, based on the radial distance data of each adjusting segment blade. Wind speed data Calculate the target angle of attack for each segment of the blade. ; S3, calculate the target angle of attack for each segment of the adjustable blades. Deviation Δ from the current angle θ; S4, adjust the deviation Δ of each segment blade. θ Converted to the rotation angle θ′ of the actuator motor ( r The data is sent to the corresponding actuator motor for each segment of the adjusting blades; S5, control each actuator motor according to the rotation angle θ′( r The rotation of the blades drives the corresponding adjustment segment to rotate.

[0007] Furthermore, the calculation formula in step S2 is as follows: ; in, r This is the radial distance from the geometric center of the adjustable segment blade to the center of the wind turbine blade's shaft. For the corresponding radial distance r The angle between the chord of the segment and the direction of wind speed; This refers to the wind speed. ω This represents the blade rotation speed.

[0008] Furthermore, the wind power generation method also includes a load limit protection step, including: S2-1, Set the safety angle and wind speed safety threshold ; S2-2, Determine wind speed Does it exceed the wind speed safety threshold? ;like From a safety perspective If the target angle of attack is determined, proceed to step S3; otherwise, proceed to step S2.

[0009] The present invention proposes an adaptive wind speed wind power generation system, which applies the aforementioned adaptive wind speed wind power generation method, comprising: The data acquisition module is used to acquire wind turbine blade size data and wind speed data; The angle calculation module is used to calculate the target angle of attack for each segment of the adjustable blade. The deviation calculation module is used to calculate the deviation between the target angle of attack and the current angle of the blade segment for each adjustment segment. Rotation angle conversion module, used to convert the rotation angle of the actuator motor; The execution module is used to execute rotation angle commands and drive the rotation of the adjustable segmented blades.

[0010] Furthermore, the wind power generation system also includes a load limit protection module, which is used to determine whether the wind speed exceeds the safety threshold. If it does, the safety angle is used as the target angle of attack to calculate the deviation.

[0011] The present invention proposes an adaptive wind speed wind power generation device, which applies the aforementioned adaptive wind speed wind power generation method, including a tower, a wind speed detector, and wind turbine blades. The wind turbine blade includes a base, a central shaft, and several segmented adjustment components; one end of the central shaft is fixedly mounted on the base, and the base is connected to the tower via a rotating shaft. The segmented adjustment assembly includes adjusting segment blades, an actuator motor, and a drive gear; The adjusting segment blade is sleeved on the outer periphery of the central shaft, and the adjusting segment blade is rotatably connected to the central shaft; The actuator motor is fixedly installed inside the adjusting segment blade. The output end of the actuator motor is provided with the drive gear. Several driven gears are arranged on the central shaft. The drive gear and the driven gear are meshed and connected. Under the drive of the actuator motor, the drive wheel rotates, thereby driving the adjusting segment blade to perform circular motion around the axis of the driven gear.

[0012] Furthermore, the wind power generation device also includes connecting steel cables, of which two cables are provided. One end of each connecting steel cable is fixedly connected to the base, and the other end is connected to the outermost adjusting segment blade. Each end of the adjusting segment blade is provided with a connecting hole, and the two connecting holes are respectively fitted onto the two connecting steel cables, and the connecting holes are rotatably connected to the connecting steel cables.

[0013] Furthermore, the adjustable segmented blade includes a blade skeleton and a wrapping skin; the blade skeleton is fitted onto the central axis, and the wrapping skin covers the outer periphery of the blade skeleton.

[0014] Furthermore, the outer skin is made of carbon fiber reinforced polyester sheet, and the outer surface of the outer skin is provided with a hydrophobic coating and a heat-resistant coating.

[0015] One of the above technical solutions has the following advantages or beneficial effects: 1. The method in this application is based on radial distance. and wind speed Real-time calculation of the target angle of attack for each blade segment This technology enables independent adaptive angle adjustment along the radial direction of the blade, ensuring that each segment of the blade is in a near-optimal aerodynamic angle of attack state. This significantly improves wind energy utilization and power generation efficiency. The radial distance r at the root of the wind turbine blade is small, automatically matching a larger angle of attack to ensure lift; the radial distance r at the tip of the wind turbine blade is large, ensuring that each segment of the blade is always close to the optimal aerodynamic shape, resulting in smoother airflow, more uniform load, effectively reducing fatigue damage, and automatically reducing the angle of attack to suppress stall and overload. 2. When encountering severe weather, the angle of attack of each adjusting segment blade can be adjusted to reduce the risk of sudden changes in local load, aerodynamic stall and extreme load, thereby extending the service life and reliability of blades, main shaft, transmission system and the whole machine. Attached Figure Description

[0016] Figure 1 This is a flowchart of one embodiment of the method proposed in this invention; Figure 2 This is a schematic diagram of the structure of one embodiment of the system proposed in this invention; Figure 3 This is an overall schematic diagram of one embodiment of the device proposed in this invention; Figure 4 This is a schematic diagram of the internal structure of the segmented adjustment component in one embodiment of the device proposed in this invention; Figure 5 This is a cross-sectional view of the adjusting segment blades in one embodiment of the device proposed in this invention; Figure 6 This is a cross-sectional view of the adjusting segmented blades in another embodiment of the device proposed in this invention; Figure 7 This is a cross-sectional view of the adjusting segmented blades in another embodiment of the device proposed in this invention; The components include: tower 100, wind speed detector 200, wind turbine blade 300, base 1, central shaft 2, driven gear 21, segmented adjustment assembly 3, adjustable segmented blade 31, blade frame 311, outer skin 312, actuator motor 32, drive gear 33, and connecting steel cable 400. Detailed Implementation

[0017] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0018] In the description of this invention, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, features defined with "first" and "second" may explicitly or implicitly include one or more of these features, used to distinguish and describe features, without any order or emphasis.

[0019] In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0020] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0021] The following is combined Figure 1 An adaptive wind power generation method according to an embodiment of the present invention includes the following steps: S1, Obtain radial distance data of each adjustment segment of the wind turbine blade. Wind speed data ; S2, based on the radial distance data of each adjusting segment blade. Wind speed data Calculate the target angle of attack for each segment of the blade. ; S3, calculate the target angle of attack for each segment of the adjustable blades. Deviation Δ from the current angle θ ; S4, adjust the deviation Δ of each segment blade. θ Converted to the rotation angle θ′ of the actuator motor ( r The data is sent to the corresponding actuator motor for each segment of the adjusting blades; S5, control each actuator motor according to the rotation angle θ′( r The rotation of the blades drives the corresponding adjustment segment to rotate.

[0022] Specifically, traditional integral blade pitch adjustment suffers from slow response, low resolution, and inability to perform radial subdivision. It can only uniformly adjust the blade angle and cannot simultaneously address the aerodynamic requirements of the blade root and tip. This method divides the blade into multiple independent adjustment segments, using the deviation Δ θ With the rotation angle θ′ of the actuator motor ( r Precise drive enables radially distributed, high-precision, and fast-response angle adjustment. Traditional blades use fixed geometry or overall pitch adjustment, which cannot match the relative incoming flow velocity gradient from the blade root to the tip, making it difficult to maintain the optimal angle of attack under all operating conditions. This method is based on radial distance. and wind speed Real-time calculation of the target angle of attack for each blade segment This technology enables independent adaptive angle adjustment along the radial direction of the blades, ensuring that each segment is at a near-optimal aerodynamic angle of attack. This significantly improves wind energy utilization and power generation efficiency. The smaller radial distance *r* at the root of the wind turbine blade allows for automatic matching of a larger angle of attack to guarantee lift. The larger radial distance *r* at the blade tip ensures that each segment maintains a near-optimal aerodynamic shape, resulting in smoother airflow, more uniform load, and effectively reduced fatigue damage. It also automatically reduces the angle of attack to suppress stall and overload. In severe weather conditions, such as typhoons, the angle of attack of each blade segment can be adjusted to reduce the risk of sudden local load changes, aerodynamic stall, and extreme loads, thereby extending the service life and reliability of the blades, main shaft, transmission system, and the entire turbine.

[0023] Furthermore, the calculation formula in step S2 is as follows: ; in, r This is the radial distance from the geometric center of the adjustable segment blade to the center of the wind turbine blade's shaft. For the corresponding radial distance r The angle between the chord of the segment and the direction of wind speed; This refers to the wind speed. ω This represents the blade rotation speed.

[0024] 3. The wind power generation method with adaptive wind speed according to claim 2, characterized in that it further includes a load limit protection step, comprising: S2-1, Set the safety angle and wind speed safety threshold ; S2-2, Determine wind speed Does it exceed the wind speed safety threshold? ;like From a safety perspective If the target angle of attack is determined, proceed to step S3; otherwise, proceed to step S2.

[0025] When the wind speed exceeds the set safe threshold, the system automatically triggers load limit protection. Instead of calculating the angle using the optimal aerodynamic formula, it directly uses the safe angle as the target angle, controlling all blade segments to rotate uniformly to a safe position, thus limiting aerodynamic loads. This quickly and reliably limits the aerodynamic lift and thrust of the blades, preventing aerodynamic load overload and structural overload under extreme wind conditions such as storms and gusts. It significantly reduces instantaneous impact loads and alternating stresses on critical components such as blades, main shaft, bearings, and tower 100, lowering the risk of fatigue failure and further extending the overall lifespan of the wind turbine. Under normal wind speeds, the original calculation method is still used. Achieve optimal aerodynamic power generation; automatically switch to a safe angle under extreme wind speeds. It provides protection and achieves intelligent and seamless switching between high efficiency and high safety, solving the contradiction between traditional blades that are either inefficient or have uncontrollable loads.

[0026] This invention also proposes an adaptive wind speed wind power generation system, which applies the aforementioned adaptive wind speed wind power generation method, including: The data acquisition module is used to acquire wind turbine blade size data and wind speed data; The angle calculation module is used to calculate the target angle of attack for each segment of the adjustable blade. The deviation calculation module is used to calculate the deviation between the target angle of attack and the current angle of the blade segment for each adjustment segment. Rotation angle conversion module, used to convert the rotation angle of the actuator motor; The execution module is used to execute rotation angle commands and drive the rotation of the adjustable segmented blades.

[0027] Furthermore, the wind power generation system also includes a load limit protection module, which is used to determine whether the wind speed exceeds the safety threshold. If it does, the safety angle is used as the target angle of attack to calculate the deviation.

[0028] The present invention also proposes an adaptive wind speed wind power generation device, which applies the adaptive wind speed wind power generation method as described above, including a tower 100, a wind speed detector 200 and a wind power generation blade 300. The wind turbine blade 300 includes a base 1, a central shaft 2, and several segmented adjustment components 3; one end of the central shaft 2 is fixedly mounted on the base 1, and the base 1 is connected to the tower 100 via a rotating shaft. The segmented adjustment assembly 3 includes an adjustment segment blade 31, an actuation motor 32, and a drive gear 33; The adjusting segment blade 31 is sleeved on the outer periphery of the central shaft 2, and the adjusting segment blade 31 is rotatably connected to the central shaft 2; The actuator 32 is fixedly installed inside the adjusting segment blade 31. The output end of the actuator 32 is provided with the drive gear 33. The central shaft 2 is provided with a plurality of driven gears 21. The drive gear 33 is meshed with the driven gears 21. Under the drive of the actuator 32, the drive wheel rotates, thereby driving the adjusting segment blade 31 to perform circular motion around the axis of the driven gear 21.

[0029] Specifically, the principle is as follows: the tower 100 provides support for the entire device; the base 1 achieves overall blade rotation through a rotating shaft; the central shaft 2 is fixed on the base 1, serving as the common support shaft for all adjustable segment blades 31, ensuring coaxial and stable rotation of the blade segments; each adjustable segment blade 31 has an independently installed actuator motor 32, and the drive gear 33 at the motor output end meshes with the driven gear 21 fixed on the central shaft 2; when the actuator motor 32 rotates, the drive gear 33 meshes around the driven gear 21. Since the driven gear 21 is relatively fixed to the central shaft 2, the drive gear 33 will drive the adjustable segment blade 31 to rotate in a circle around the axis of the central shaft 2, thereby changing the angle of attack of the segment blade relative to the incoming flow; the wind speed detector 200 collects wind speed signals in real time, calculates the target angle of attack through the system, compares it with the current angle to obtain the deviation, and then converts it into the rotation angle of the actuator motor 32. The control system sends the rotation angle command to the corresponding actuator motor 32, and the motor drives the gear 33 to actuate, so that the adjustable segment blade 31 rotates precisely to the target angle; This device radially divides the wind turbine blade 300 into multiple adjustable segment blades 31, each segment can rotate independently, and can adjust the angle of attack in real time according to the radial position, wind speed and rotation speed, so that the root and tip of the blade are in the optimal aerodynamic state. Structurally, it achieves radial fine-tuning and distributed adaptive adjustment, which significantly improves wind energy capture efficiency. The actuator 32 is built into the adjustable segment blade 31, without occupying external aerodynamic space or damaging the original airfoil and aerodynamic shape of the blade. While ensuring the aerodynamic efficiency of the blade, it has a high degree of structural integration and a simple overall layout, which is conducive to mass production and assembly. It adopts a transmission method in which the drive gear 33 meshes with the driven gear 21 on the central shaft 2. The transmission ratio is stable and the control precision is high. It can accurately convert the rotation angle of the actuator 32 into the angular displacement of the adjustable segment blade 31, which meets the requirements of high precision and fast response aerodynamic adjustment.

[0030] Furthermore, the wind power generation device also includes a connecting steel cable 400. Two connecting steel cables 400 are provided. One end of the connecting steel cable 400 is fixedly connected to the base 1, and the other end is connected to the outermost adjusting segment blade 31. The two ends of the adjusting segment blade 31 are respectively provided with connecting holes. The two connecting holes are respectively fitted onto the two connecting steel cables 400, and the connecting holes are rotatably connected to the connecting steel cables 400.

[0031] Specifically, the connecting steel cable 400 is arranged radially along the blades, with one end fixed to the base 1 and the other end connected to the outermost adjusting segment blade 31, forming a radial traction support structure that runs through multiple adjusting segment blades 31. When the actuator 32 drives the adjusting segment blades 31 to rotate around the central axis 2 to adjust the angle of attack, the connecting steel cable 400 does not restrict the circumferential rotation of the segment blades, ensuring that the aerodynamic angle of attack adjustment function is realized normally. The connecting steel cable 400 provides unified guidance and positioning for each segment blade, ensuring that the multiple segments blades are coaxial and arranged in an orderly manner, connecting the multiple adjusting segment blades 31 radially into a whole, avoiding relative misalignment and sway, and making the overall blade operation more stable.

[0032] Furthermore, such as Figure 5 As shown, the adjustable segmented blade 31 includes a blade skeleton 311 and a wrapping skin 312; the blade skeleton 311 is sleeved on the central shaft 2, and the wrapping skin 312 covers the outer periphery of the blade skeleton 311.

[0033] Specifically, the blade frame 311, as the load-bearing main body, is fitted onto the central shaft 2 and mainly bears the rotational centrifugal force, aerodynamic load, and bending moment and torque during the adjustment process, undertaking the functions of structural support and load transmission. The wrapping skin 312 tightly covers the outer periphery of the blade frame 311, forming a continuous and smooth aerodynamic shape, mainly used to capture wind energy and ensure aerodynamic efficiency. At the same time, it forms a seal and protection for internal components such as the frame, actuator motor 32, and gears. By adopting the lightweight structure of the blade frame 311 and the wrapping skin 312, the weight of the adjustment segment blade 31 is significantly reduced while ensuring rigidity and strength, thus reducing the rotational centrifugal force and drive load, reducing the power consumption of the actuator motor 32, and improving the system response speed.

[0034] There are many other ways to adjust the composition of the segmented blades 31, such as... Figure 6 and Figure 7 As shown, the blade frame 311 can be applied to blades with different cross-sectional shapes.

[0035] Furthermore, the outer skin 312 is made of carbon fiber reinforced polyester sheet, and the outer surface of the outer skin 312 is provided with a hydrophobic coating and a heat-resistant coating.

[0036] Specifically, carbon fiber reinforced polyester sheet has advantages such as high specific strength, fatigue resistance and deformation resistance. While significantly reducing the weight of the blade, it ensures the structural stiffness and strength of the adjustable segmented blade 31, reduces the rotational centrifugal load and drive energy consumption, and improves the operating stability and service life of the blade. The hydrophobic coating is directly attached to the outside of the wrapping skin 312 to form a low surface energy hydrophobic film layer, making it difficult for rainwater, dew and frost to adhere and quickly slide off. The heat-resistant coating covers the outside of the hydrophobic coating or is combined with the hydrophobic coating to form a high-temperature resistant, flame-retardant and heat-insulating heat-resistant protective layer to prevent high temperature damage to internal blade skeleton 311, actuator motor 32, gears and circuits.

[0037] Other configurations and operations of the adaptive wind speed wind power generation method, system, and apparatus according to embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0038] Furthermore, the functional units in the various embodiments of the present invention can be integrated into a processing module, or each unit can exist physically separately, or two or more units can be integrated into a module. The integrated module can be implemented in hardware or as a software functional module. If the integrated module is implemented as a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium.

[0039] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus or device (such as a computer-based system, a system including a processing module or other system that can fetch and execute instructions from, an instruction execution system, apparatus or device).

[0040] In the description of this specification, references to terms such as "embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0041] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A wind power generation method with adaptive wind speed, characterized in that, Includes the following steps: S1, Obtain radial distance data of each adjustment segment of the wind turbine blade. Wind speed data ; S2, based on the radial distance data of each adjusting segment blade. Wind speed data Calculate the target angle of attack for each segment of the blade. ; S3, calculate the target angle of attack for each segment of the adjustable blades. Deviation Δ from the current angle θ ; S4, adjust the deviation Δ of each segment blade. θ Converted to the rotation angle θ′ of the actuator motor ( r The data is sent to the corresponding actuator motor for each segment of the adjusting blades; S5, control each actuator motor according to the rotation angle θ′( r The rotation of the blades drives the corresponding adjustment segment to rotate.

2. The wind power generation method with adaptive wind speed according to claim 1, characterized in that the calculation formula in step S2 is: ; in, r This is the radial distance from the geometric center of the adjustable segment blade to the center of the wind turbine blade's shaft. For the corresponding radial distance r The angle between the chord of the segment and the direction of wind speed; This refers to the wind speed. ω This represents the blade rotation speed.

3. The wind power generation method with adaptive wind speed according to claim 2, characterized in that it further includes a load limit protection step, comprising: S2-1, Set the safety angle and wind speed safety threshold ; S2-2, Determine wind speed Does it exceed the wind speed safety threshold? ;like From a safety perspective As the target angle of attack, return to step S3 for execution; Otherwise, proceed to step S2.

4. A wind power generation system with adaptive wind speed, characterized in that, The application includes a wind power generation method with adaptive wind speed as described in any one of claims 1-3, comprising: The data acquisition module is used to acquire wind turbine blade size data and wind speed data; The angle calculation module is used to calculate the target angle of attack for each segment of the adjustable blade. The deviation calculation module is used to calculate the deviation between the target angle of attack and the current angle of the blade segment for each adjustment segment. Rotation angle conversion module, used to convert the rotation angle of the actuator motor; The execution module is used to execute rotation angle commands and drive the rotation of the adjustable segmented blades.

5. The wind power generation system with adaptive wind speed according to claim 1, characterized in that, The wind power generation system also includes a load limit protection module, which is used to determine whether the wind speed exceeds the safety threshold. If it does, the safety angle is used as the target angle of attack to calculate the deviation.

6. A wind power generation device with adaptive wind speed, characterized in that, The application includes an adaptive wind speed wind power generation method as described in any one of claims 1-3, comprising a tower, a wind speed detector, and wind turbine blades; The wind turbine blade includes a base, a central shaft, and several segmented adjustment components; one end of the central shaft is fixedly mounted on the base, and the base is connected to the tower via a rotating shaft. The segmented adjustment assembly includes adjusting segment blades, an actuator motor, and a drive gear; The adjusting segment blade is sleeved on the outer periphery of the central shaft, and the adjusting segment blade is rotatably connected to the central shaft; The actuator motor is fixedly installed inside the adjusting segment blade. The output end of the actuator motor is provided with the drive gear. A plurality of driven gears are arranged on the central shaft. The drive gear and the driven gear are meshed and connected. Driven by the motor, the drive wheel rotates, thereby causing the adjusting segment blades to move in a circular motion around the axis of the driven gear.

7. A wind power generation device with adaptive wind speed according to claim 6, characterized in that, The wind power generation device also includes connecting steel cables. Two connecting steel cables are provided. One end of the connecting steel cable is fixedly connected to the base, and the other end is connected to the outermost adjusting segment blade. Each end of the adjusting segment blade is provided with a connecting hole. The two connecting holes are respectively fitted onto the two connecting steel cables, and the connecting holes are rotatably connected to the connecting steel cables.

8. A wind power generation device with adaptive wind speed according to claim 6, characterized in that, The adjustable segmented blade includes a blade skeleton and a wrapping skin; the blade skeleton is sleeved on the central axis, and the wrapping skin covers the outer periphery of the blade skeleton.

9. A device for automatically adjusting the weight of wind turbine blades according to claim 8, characterized in that, The outer skin is made of carbon fiber reinforced polyester sheet, and the outer surface of the outer skin is provided with a hydrophobic coating and a heat-resistant coating.

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