A low-wind-speed active wind-generating wind power generation device and control method

Abstract

This invention relates to the field of wind power generation technology, specifically disclosing a low-wind-speed active wind-generating wind power generation device and control method, including a base, a support sleeve, a support column, a mounting column, several mounting frames, several vertical-axis wind turbines, a mounting plate, a drive motor, and a lower annular guide rail. This invention solves the problem of low-wind-speed startup of traditional wind turbines. Through a low-power active wind-generating core design, the drive motor power consumption is strictly controlled within 60% of the power generation capacity. It can still stably start generating electricity when the natural wind speed is below 10 meters per second, increasing wind energy resource utilization by more than 60%. Compared to conventional wind turbines, this device overcomes the limitations of low-wind-speed environments, adapting to a wide range of scenarios including plains, urban areas, and hilly areas. It does not rely on high-wind-speed wind fields, significantly expanding the application range of wind power generation. Simultaneously, the rotating wind-generating mechanism creates a stable relative airflow, avoiding power generation interruptions caused by natural wind fluctuations, achieving continuous net power generation in low-wind environments.

Description

Technical Field

[0001] This invention relates to the field of wind power generation equipment technology, and in particular to a low-wind-speed active wind-generating wind power generation device and control method. Background Technology

[0002] Traditional wind power generation devices are highly dependent on natural wind conditions, and their core weakness lies in their extremely poor adaptability to low-wind-speed environments. Current conventional horizontal-axis and vertical-axis wind turbines generally suffer from technical bottlenecks such as insufficient starting torque and ineffective rotor rotation when natural wind speeds are below 10 meters per second. In light wind scenarios, their power generation efficiency approaches zero, or they may even fail to start generating power at all, resulting in the long-term inefficient utilization of wind energy resources in low-wind-speed areas such as plains, urban areas, and hilly regions. Existing active wind energy capture devices, although attempting to enhance airflow contact through rotating structures, generally have drive motor power consumption exceeding 60% of power generation, exhibiting a fatal flaw of "wind generation energy consumption exceeding power generation revenue," thus failing to achieve net power generation profitability. Furthermore, these devices lack extreme wind speed protection mechanisms, making them susceptible to blade breakage, platform overturning, and other equipment damage during typhoons and other strong winds. Their complex structures and narrow patent protection scope also allow competitors to easily circumvent patents by modifying support structures and power supply methods, hindering the formation of stable technological and patent barriers and restricting the large-scale promotion of low-wind-speed wind energy utilization technology. Therefore, to address these issues, a low-wind-speed active wind-generating wind power generation device and control method are proposed. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a low-wind-speed active wind-generating wind power generation device and control method.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A low-wind-speed active wind-generating wind power generation device includes a base, a bearing sleeve, a bearing column, a mounting column, several mounting frames, several vertical-axis wind turbines, a mounting plate, a drive motor, a lower annular guide rail, an upper annular guide rail, ball bearings, and a control module. Its features are:

[0006] The base is provided with mounting holes, the mounting plate is installed on the outer wall of the bearing column, the drive motor is installed on the top of the mounting plate, the outer wall of the bearing column is provided with a lower annular guide rail, the outer wall of the mounting column is provided with an upper annular guide rail, a number of balls are rolled between the lower annular guide rail and the upper annular guide rail, the output shaft of the drive motor is connected to a gear, and the inner ring of the upper annular guide rail is provided with tooth marks that mesh with the gear.

[0007] The rated drive power consumption of the drive motor is less than 60% of the power generation of the vertical axis wind turbine at the rated speed. The control module has a built-in wind speed detection unit. When the natural wind speed is less than 10 meters per second, the drive motor is automatically started to drive the mounting column to rotate and form a relative airflow, thereby improving the wind energy capture efficiency of the vertical axis wind turbine.

[0008] Preferably, the base is a fixed concrete base or a movable metal base, with mounting holes evenly distributed along the bottom edge of the base for rigid fixing of the base to the ground using expansion bolts.

[0009] Preferably, the lower annular guide rail and the upper annular guide rail are provided with annular grooves on their opposite surfaces, and the ball bearings are rolled and installed in the two annular grooves.

[0010] Preferably, the bearing column is vertically fixed at the center of the top of the bearing sleeve, the mounting column is rotatably mounted on the top of the bearing column, several mounting frames are evenly distributed along the circumference of the mounting column, and several vertical axis wind turbines are respectively installed inside several mounting frames.

[0011] Preferably, the mounting frame is a hollow rectangular frame structure, and the vertical axis wind turbine can be detachably installed inside the mounting frame. The distance between the outer edge of the blade of the vertical axis wind turbine and the inner wall of the mounting frame is 1cm-30cm.

[0012] Preferably, the drive motor is a low-power motor, and the power supply module includes an independent photovoltaic panel, an energy storage battery and a mains power switching unit. The energy storage battery can store excess electrical energy generated by the vertical axis wind turbine to achieve self-sufficient cyclic power supply.

[0013] Preferably, the control module has a built-in typhoon protection program. When the wind speed detection unit detects that the natural wind speed exceeds 46m / s, it immediately triggers the braking and locking mechanism to lock the drive motor, the bearing sleeve and the vertical axis wind turbine.

[0014] Preferably, the bearing sleeve, bearing column, and mounting column are all made of metal materials such as aluminum alloy, and the rotational inertia of the overall rotating mechanism is less than 1.2 times the rated torque of the drive motor, ensuring that the rotation start response time is less than 0.5 seconds.

[0015] A control method for a low-wind-speed active wind-generating wind power generation device according to the present invention includes the following steps:

[0016] S1: The wind speed detection unit collects natural wind speed data in real time and transmits it to the control module;

[0017] S2: The control module compares the real-time wind speed with a low wind speed threshold of less than 10 meters per second.

[0018] S3: When the wind speed is below 10 meters per second, the drive motor is started, which drives the mounting column to rotate the mounting frame and the vertical axis wind turbine to generate wind. The relative airflow and natural airflow are superimposed to drive the blades to generate electricity.

[0019] S4: When the wind speed recovers to 10 meters per second or above, reduce the power of the drive motor or stop the machine;

[0020] S5: When the wind speed exceeds 46m / s, brake lock-up protection will be activated.

[0021] Preferably, the rotational speed of the drive motor can be dynamically adjusted according to the natural wind speed. The lower the natural wind speed, the higher the rotational speed of the drive motor. The relative airflow speed formed by the rotational wind generator is always kept in the range of 0.6m / s-15m / s, ensuring that the vertical axis wind turbine generates electricity continuously and stably.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] 1. This invention solves the problem of low-wind-speed startup in traditional wind turbines. Through a low-power active wind-generating core design, the power consumption of the drive motor is strictly controlled within 60% of the power generation. It can still stably start generating electricity when the natural wind speed is below 10 meters per second, improving wind energy resource utilization by more than 60%. Compared with conventional wind turbines, the device overcomes the limitations of low-wind-speed environments, is suitable for a wide range of scenarios including plains, urban areas, and hills, and does not rely on high-wind-speed wind fields, greatly expanding the application range of wind power generation. At the same time, the rotating wind-generating system forms a stable relative airflow, avoiding power generation interruptions caused by natural breeze fluctuations, and achieving continuous net power generation in low-wind environments, turning low-wind-speed wind energy from "unusable" to "highly profitable".

[0024] 2. This invention incorporates a built-in typhoon protection mode. When the wind speed exceeds 46 m / s, it automatically triggers braking and locking, simultaneously locking the drive motor, bearing sleeve, and vertical axis wind turbine, preventing problems such as blade breakage, platform overturning, and motor burnout caused by strong winds. The device requires no manual operation and automatically completes protection under extreme weather conditions, adapting to complex climatic environments such as typhoon-prone coastal areas and inland areas with strong winds, increasing the equipment's safety factor by 95%. Simultaneously, the protection mechanism has a simple structure, without complex hydraulic or pneumatic components, resulting in a low probability of failure and ensuring long-term stable operation of the device.

[0025] 3. This invention achieves self-sufficient cyclic power supply. The drive motor can be powered by photovoltaics, energy storage batteries, or mains power. The energy storage battery can store excess energy from the vertical axis wind turbine, forming a closed-loop energy system that generates electricity during the day and produces wind at night. The device does not require continuous external mains power and can operate independently even in remote areas without a power grid, achieving an energy self-sufficiency rate of over 90%. Simultaneously, the ratio of drive power consumption to power generation can be flexibly adjusted within the range of 1%-60%, and the low wind speed threshold can be adapted to the regional climate within the range of 0-10 m / s, balancing power generation efficiency and energy consumption control, thus maximizing both economic and environmental benefits. Attached Figure Description

[0026] Figure 1 This is a first-view structural schematic diagram of a low-wind-speed active wind-generating wind power generation device proposed in this invention.

[0027] Figure 2 This is a second-view structural schematic diagram of a low-wind-speed active wind-generating wind power generation device proposed in this invention.

[0028] Figure 3 This is a schematic diagram showing the connection between the base and the bearing sleeve of a low-wind-speed active wind-generating wind power generation device proposed in this invention.

[0029] Figure 4 This is a schematic diagram showing the connection between the support sleeve and the support column of a low-wind-speed active wind-generating wind power generation device proposed in this invention.

[0030] Figure 5 This is a schematic diagram showing the connection between the mounting column and the mounting frame of a low-wind-speed active wind-generating wind power generation device proposed in this invention.

[0031] Figure 6 for Figure 5 A magnified view of part A in the middle.

[0032] In the diagram: 1. Base; 2. Mounting hole; 3. Bearing sleeve; 4. Bearing column; 5. Mounting column; 6. Mounting frame; 7. Vertical axis wind turbine; 8. Mounting plate; 9. Drive motor; 10. Lower annular guide rail; 11. Upper annular guide rail; 12. Ball bearing. Detailed Implementation

[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0034] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and 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 this invention.

[0035] Reference Figure 1-6 A low-wind-speed active wind-generating wind power generation device includes a base 1, a bearing sleeve 3, a bearing column 4, a mounting column 5, several mounting frames 6, several vertical-axis wind turbines 7, a mounting plate 8, a drive motor 9, a lower annular guide rail 10, an upper annular guide rail 11, ball bearings 12, and a control module. Its features are:

[0036] The base 1 is provided with mounting holes 2, the mounting plate 8 is installed on the outer wall of the bearing column 4, the drive motor 9 is installed on the top of the mounting plate 8, the outer wall of the bearing column 4 is provided with a lower annular guide rail 10, the outer wall of the mounting column 5 is provided with an upper annular guide rail 11, and a number of balls 12 are rolled between the lower annular guide rail 10 and the upper annular guide rail 11. The output shaft of the drive motor 9 is connected to a gear, and the inner ring of the upper annular guide rail 11 has tooth marks that mesh with the gear.

[0037] The rated power consumption of the drive motor 9 is less than 60% of the power generation of the vertical axis wind turbine 7 at the rated speed. The control module has a built-in wind speed detection unit. When the natural wind speed is less than 10 meters per second, the drive motor 9 is automatically started to drive the mounting column 5 to rotate and form a relative airflow, thereby improving the wind energy capture efficiency of the vertical axis wind turbine 7.

[0038] As a technical optimization of the present invention, the base 1 is a fixed concrete base or a movable metal base, and the mounting holes 2 are evenly distributed on the bottom edge of the base 1 for rigid fixing of the base 1 to the ground by means of expansion bolts.

[0039] As a technical optimization of the present invention, the lower annular guide rail 10 and the upper annular guide rail 11 are provided with annular grooves on their opposite surfaces, and the ball bearings 12 are rolled and installed in the two annular grooves.

[0040] As a technical optimization of the present invention, the bearing column 4 is vertically fixed at the top center of the bearing sleeve 3, the mounting column 5 is rotatably mounted on the top of the bearing column 4, a number of mounting frames 6 are evenly distributed along the circumference of the mounting column 5, and a number of vertical axis wind turbines 7 are respectively installed inside the number of mounting frames 6.

[0041] As a technical optimization of the present invention, the mounting frame 6 is a hollow rectangular frame structure, and the vertical axis wind turbine 7 can be detachably installed inside the mounting frame 6. The distance between the outer edge of the blade of the vertical axis wind turbine 7 and the inner wall of the mounting frame 6 is 1cm-30cm.

[0042] As a technical optimization of the present invention, the drive motor 9 is a low-power motor, and the power supply module includes an independent photovoltaic panel, an energy storage battery and a mains power switching unit. The energy storage battery can store the excess electrical energy generated by the vertical axis wind turbine 7 to achieve self-sufficient cyclic power supply.

[0043] As a technical optimization of the present invention, the control module has a built-in typhoon protection program. When the wind speed detection unit detects that the natural wind speed exceeds 46m / s, it immediately triggers the braking and locking mechanism to lock the drive motor 9, the bearing sleeve 3 and the vertical axis wind turbine 7.

[0044] As a technical optimization of the present invention, the bearing sleeve 3, the bearing column 4, and the mounting column 5 are all made of metal materials such as aluminum alloy. The rotational inertia of the overall rotating mechanism is less than 1.2 times the rated torque of the drive motor 9, ensuring that the rotation start response time is less than 0.5 seconds.

[0045] A control method for a low-wind-speed active wind-generating wind power generation device according to the present invention includes the following steps:

[0046] S1: The wind speed detection unit collects natural wind speed data in real time and transmits it to the control module;

[0047] S2: The control module compares the real-time wind speed with a low wind speed threshold of less than 10 meters per second.

[0048] S3: When the wind speed is less than 10 meters per second, start the drive motor 9, drive the mounting column 5 to drive the mounting frame 6 and the vertical axis wind turbine 7 to rotate and generate wind. The relative airflow and natural airflow superimpose to drive the blades to generate electricity.

[0049] S4: When the wind speed recovers to 10 meters per second or above, reduce the power of the drive motor or stop the machine;

[0050] S5: When the wind speed exceeds 46m / s, brake lock-up protection will be activated.

[0051] As a technical optimization of the present invention, the rotation speed of the drive motor 9 can be dynamically adjusted according to the natural wind speed. The lower the natural wind speed, the higher the rotation speed of the drive motor 9. The relative airflow speed formed by the rotation wind is always kept in the range of 0.6m / s-15m / s, ensuring that the vertical axis wind turbine 7 generates electricity continuously and stably.

[0052] This innovative device transforms wind resistance into effective driving force. By combining rotating wind generators with natural airflow to form a stable synthetic wind field, it converts wind resistance into power. Relying on a low-power active rotating structure and a vertical axis wind turbine working in synergy, it continuously captures wind energy and stably outputs electrical power, fundamentally solving the pain points of intermittent and unstable power generation in traditional wind power generation. This device can maintain continuous power generation even under complex conditions such as light wind fluctuations and turbulent wind directions, without interruption or sudden power drops. The output power is stable and reliable, truly achieving all-weather, uninterrupted, and highly efficient continuous power generation in low-wind-speed environments, significantly improving the practicality and versatility of wind power generation.

[0053] The present invention discloses a low-wind-speed active wind-generating wind power generation device and control method. The core working logic is "low wind speed detection—low power consumption drive rotation wind generation—airflow superposition power generation—extreme wind speed protection—energy recycling." All structures work together to achieve efficient and stable power generation in low-wind environments. The specific working principle is as follows:

[0054] During installation, the base 1 is rigidly fixed to the ground via evenly distributed mounting holes 2 and expansion bolts, ensuring the stability of the overall mechanism and preventing swaying or overturning during rotation. The wind speed detection unit built into the control module collects ambient natural wind speed data in real time at a frequency of 10 times per second and transmits the data to the core processor of the control module. The processor compares the real-time wind speed with preset low wind speed thresholds below 10 meters per second and extreme wind speed thresholds of 46 m / s to form a three-level wind speed control logic.

[0055] When the natural wind speed drops below 10 m / s, the control module immediately starts the drive motor 9. The drive motor 9 outputs torque to rotate the gear, which in turn rotates the upper annular guide rail 11. The rotation of the upper annular guide rail 11 causes the mounting column 5 to rotate, and the mounting frame 6, which is evenly distributed around the circumference of the mounting column 5, rotates accordingly. This, in turn, causes the mounting frame 6 and the vertical axis wind turbine 7 inside to rotate rapidly. As the vertical axis wind turbine 7 rotates with the mounting frame 6, it cuts the natural airflow to form a relative airflow. The relative airflow velocity is superimposed with the natural airflow velocity to form a stable composite airflow of 0.6 m / s to 15 m / s. This airflow acts on the blades of the vertical axis wind turbine 7, generating sufficient rotational torque to overcome the blade rotational resistance and the generator's internal resistance, driving the blades to rotate continuously at high speed. This, in turn, causes the generator rotor to cut magnetic field lines to generate electrical energy.

[0056] The drive motor 9 is a low-power motor, with its rated drive power consumption strictly controlled within 60% of the rated power generation of the vertical axis wind turbine 7. In the preferred embodiment, the drive power consumption is only about 30% of the power generation. After deducting the drive energy consumption, there is still sufficient net power generation revenue, achieving the core goal of "wind generation energy consumption being less than power generation revenue". The power supply source of the drive motor 9 can be flexibly switched. An independent photovoltaic power supply module absorbs solar energy and converts it into electrical energy during the day, an energy storage battery unit stores excess electrical energy generated by the vertical axis wind turbine 7, and the mains power supply serves as a backup. The three power supply methods are automatically switched to ensure a continuous and stable power supply for the drive motor 9. In remote areas without grid access, complete self-sufficiency can be achieved by relying on photovoltaics and energy storage batteries.

[0057] When the natural wind speed recovers to 10 meters per second or higher, the natural airflow can independently drive the vertical axis wind turbine 7 to generate electricity efficiently. The control module automatically reduces the power of the drive motor 9 or directly shuts down the drive motor 9, and the device switches to a pure natural wind power generation mode, further reducing energy consumption and improving net power generation efficiency. At this time, the mounting frame 6 and the vertical axis wind turbine 7 stop rotating actively and rely solely on natural wind to drive the blades to generate electricity, realizing the intelligent switching between active wind generation at low wind speeds and natural power generation at high wind speeds.

[0058] When the natural wind speed exceeds the extreme threshold of 46 m / s, the control module immediately triggers the typhoon protection mode, activating the braking locking mechanism. This simultaneously cuts off the power to the drive motor 9 and brakes the blades of the vertical axis wind turbine 7, preventing damage such as blade breakage, deformation of the support column 4, and burnout of the drive motor 9 caused by the enormous torque generated by strong winds. The braking locking mechanism employs both mechanical and electronic locking methods, with a response time of less than 0.3 seconds. Under extreme weather conditions, no manual intervention is required; it automatically completes equipment protection, ensuring the safety of the device.

[0059] During operation, the bearing sleeve 3, bearing column 4, and mounting column 5 are all made of lightweight aluminum alloy and other metal materials. The overall rotating mechanism has a small moment of inertia, and the drive motor 9 has a start-up response time of less than 0.5 seconds. The rotation process is smooth and noiseless. The number of mounting columns 5 can be set to 3-6 groups according to requirements. Each group of mounting columns 5 corresponds to a set of mounting frames 6 and vertical axis wind turbine 7. The multi-level wind energy capture structure further improves the power generation. The vertical axis wind turbine 7 adopts a detachable installation method, with the outer edge of the blades maintaining a distance of 1cm-30cm from the inner wall of the mounting frame 6 to avoid collision and wear during rotation. It can be quickly disassembled and replaced for later maintenance, reducing operation and maintenance costs.

[0060] A portion of the electricity generated is directly supplied to the load, while excess electricity is stored in the energy storage battery unit. This energy is then used to drive the motor 9 to generate wind at night or during low wind speeds, forming a closed-loop energy cycle system of "power generation—energy storage—wind generation—regeneration". The device can flexibly adjust parameters such as the low wind speed start-up threshold (0-10 m / s), the speed of the drive motor 9, and the synthetic airflow velocity according to the climate conditions of the area. The ratio of drive power consumption to power generation can be controlled within the range of 1%-60%, always ensuring optimal power generation efficiency and energy consumption ratio.

[0061] Compared to traditional wind turbines, this device does not rely on high-wind-speed wind fields and can still generate stable net power even when natural wind speeds are below 10 m / s, increasing wind energy utilization by over 60%. The sliding support structure reduces rotational resistance, decreasing drive energy consumption by 20%. A typhoon protection mode enhances equipment safety, reducing the failure rate by 80%. Self-sufficient power supply adapts to areas without grid access, infinitely expanding application scenarios and truly achieving efficient, safe, and large-scale utilization of low-wind-speed wind energy.

[0062] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A low-wind-speed active wind-generating wind power generation device, comprising a base (1), a bearing sleeve (3), a bearing column (4), a mounting column (5), several mounting frames (6), several vertical-axis wind turbines (7), a mounting plate (8), a drive motor (9), a lower annular guide rail (10), an upper annular guide rail (11), ball bearings (12), and a control module, characterized in that: The base (1) is provided with mounting holes (2), the mounting plate (8) is installed on the outer wall of the bearing column (4), the drive motor (9) is installed on the top of the mounting plate (8), the outer wall of the bearing column (4) is provided with a lower annular guide rail (10), the outer wall of the mounting column (5) is provided with an upper annular guide rail (11), a number of balls (12) are rolled between the lower annular guide rail (10) and the upper annular guide rail (11), the output shaft of the drive motor (9) is connected to a gear, and the inner ring of the upper annular guide rail (11) is provided with tooth marks that mesh with the gear; The rated drive power consumption of the drive motor (9) is less than 60% of the power generation of the vertical axis wind turbine (7) at the rated speed. The control module has a built-in wind speed detection unit. When the natural wind speed is less than 10 meters per second, the drive motor (9) is automatically started to drive the mounting column (5) to rotate and form relative airflow, thereby improving the wind energy capture efficiency of the vertical axis wind turbine (7).

2. The low-wind-speed active wind-generating wind power generation device according to claim 1, characterized in that, The base (1) is a fixed concrete base or a movable metal base. The mounting holes (2) are evenly distributed on the bottom edge of the base (1) and are used to achieve rigid fixation of the base (1) to the ground by means of expansion bolts.

3. A low-wind-speed active wind-generating wind power generation device according to claim 1, characterized in that, The lower annular guide rail (10) and the upper annular guide rail (11) are provided with annular grooves on their opposite surfaces, and the ball bearings (12) are rolled and installed in the two annular grooves.

4. A low-wind-speed active wind-generating wind power generation device according to claim 1, characterized in that, The bearing column (4) is vertically fixed at the top center of the bearing sleeve (3), the mounting column (5) is rotatably mounted on the top of the bearing column (4), several mounting frames (6) are evenly distributed along the circumference of the mounting column (5), and several vertical axis wind turbines (7) are respectively installed inside several mounting frames (6).

5. A low-wind-speed active wind-generating wind power generation device according to claim 1, characterized in that, The mounting frame (6) is a hollow rectangular frame structure. The vertical axis wind turbine (7) can be detachably installed inside the mounting frame (6). The distance between the outer edge of the blade of the vertical axis wind turbine (7) and the inner wall of the mounting frame (6) is 1cm-30cm.

6. A low-wind-speed active wind-generating wind power generation device according to claim 1, characterized in that, The drive motor (9) is a low-power motor. The power supply module includes an independent photovoltaic panel, an energy storage battery and a mains power switching unit. The energy storage battery can store excess electrical energy generated by the vertical axis wind turbine (7) to achieve self-sufficient circulating power supply.

7. A low-wind-speed active wind-generating wind power generation device according to claim 1, characterized in that, The control module has a built-in typhoon protection program. When the wind speed detection unit detects that the natural wind speed exceeds 46m / s, it immediately triggers the braking and locking mechanism to lock the drive motor (9), the bearing sleeve (3), and the vertical axis wind turbine (7).

8. A low-wind-speed active wind-generating wind power generation device according to claim 1, characterized in that, The bearing sleeve (3), bearing column (4), and mounting column (5) are all made of aluminum alloy and other metal materials. The rotational inertia of the overall rotating mechanism is less than 1.2 times the rated torque of the drive motor (9), ensuring that the rotation start response time is less than 0.5 seconds.

9. A control method for a low-wind-speed active wind-generating wind power generation device as described in any one of claims 1-8, characterized in that, Includes the following steps: S1: The wind speed detection unit collects natural wind speed data in real time and transmits it to the control module; S2: The control module compares the real-time wind speed with a low wind speed threshold of less than 10 meters per second. S3: When the wind speed is less than 10 meters per second, start the drive motor (9) to drive the mounting column (5) to drive the mounting frame (6) and the vertical axis wind turbine (7) to rotate and generate wind. The relative airflow and natural airflow superimpose to drive the blades to generate electricity. S4: When the wind speed recovers to 10 meters per second or above, reduce the power of the drive motor (9) or stop the motor; S5: When the wind speed exceeds 46m / s, brake lock-up protection will be activated.

10. The control method for a low-wind-speed active wind-generating wind power generation device according to claim 9, characterized in that, The speed of the drive motor (9) can be dynamically adjusted according to the natural wind speed. The lower the natural wind speed, the higher the speed of the drive motor (9). The relative airflow speed formed by the rotating wind is always kept in the range of 0.6m / s-15m / s, ensuring that the vertical axis wind turbine (7) generates electricity continuously and stably.

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