Retractable vertical axis wind power generation device and method based on sensing monitoring

Abstract

The invention provides a retractable vertical axis wind power generation device and method based on sensing monitoring, and belongs to the technical field of ocean engineering.The device comprises three H-shaped vertical axis wind turbine blades which are evenly distributed in the circumferential direction, the H-shaped vertical axis wind turbine blades are connected with a retractable connecting structure through inclined supporting rod pieces, and the retractable connecting structure is connected with the H-shaped vertical axis wind turbine blades; the retractable connecting structure is installed on the central stand column, two sensors with different heights up and down are embedded in the central stand column, a brake and a generator are installed at the lower end of the central stand column, and when the retractable connecting structure drives the inclined supporting rod piece to move, the H-shaped vertical axis fan blades can be synchronously retracted or unfolded. According to the device, through cooperation of the sensing monitoring system, the braking system and the mechanical contraction structure, intelligent regulation and control over the working state of the fan blade are achieved. According to the invention, the balance between the power generation efficiency and the operation safety is realized, and the system has the remarkable advantages of high adaptability, high reliability and controllable cost.

Description

Technical Field

[0001] This invention belongs to the field of marine engineering technology, specifically relating to a retractable vertical axis wind power generation device and method based on sensor monitoring. Background Technology

[0002] Wind energy, as a key component of clean and renewable energy, plays a vital role in promoting energy structure transformation and achieving the "dual carbon" goal. With the increasingly mature development of onshore and nearshore wind energy resources, highly adaptable wind power generation technologies capable of stable operation under complex wind conditions are becoming a new research hotspot. Vertical axis wind turbines, due to their omnidirectional wind resistance, compact structure, and stable performance under turbulent wind conditions, have attracted significant attention in related application fields.

[0003] Traditional vertical axis fans face significant challenges in dynamic environments. When the equipment platform is in high-speed motion or the ambient wind speed exceeds the rated operating conditions, the continuously deployed impeller generates enormous resistance and may even cause equipment overload, severely impacting system efficiency and safety. To address this issue, several retractable fan designs have emerged, using linkage mechanisms or hydraulic systems to retract and deploy the blades. However, most of these designs have significant drawbacks, such as a lack of intelligent sensing capabilities in the control system, making it unable to adjust based on real-time wind speed, platform motion, and other parameters; poor coordination between the braking system and the retraction mechanism, with direct braking at high speeds leading to structural impact and shortening equipment lifespan; and the need for high-power hydraulic systems for effective braking, resulting in complex structures and high costs. These limitations severely restrict the widespread practical application of retractable fans.

[0004] Currently, retractable fans suffer from several problems, including an inability to intelligently respond to complex operating conditions, structural impact and high costs due to uncoordinated braking and retraction mechanisms, and limitations on their overall performance and widespread application due to a lack of adaptive capabilities. Summary of the Invention

[0005] The purpose of this invention is to provide a retractable vertical axis wind power generation device and method based on sensor monitoring, which achieves intelligent control of the working state of wind turbine blades through the coordinated cooperation of a sensor monitoring system, a braking system and a mechanical retraction structure.

[0006] The objective of this invention is achieved through the following technical solution:

[0007] A retractable vertical axis wind power generation device based on sensor monitoring includes: three H-shaped vertical axis wind turbine blades evenly distributed around the circumference, the H-shaped vertical axis wind turbine blades being connected to a retractable connection structure via diagonal bracing members, the retractable connection structure being mounted on a central column, two sensors at different heights being embedded inside the central column, and a brake and a generator being mounted at the lower end of the central column;

[0008] The retractable connection structure includes a lead screw, one end of which is connected to a support end bearing seat via a bearing, and the other end is connected to a reducer via a coupling. The reducer is connected to a motor, which is mounted on a motor mounting plate. A nut is fitted onto the lead screw and mounted on a nut seat. The nut seat is fixedly connected to a slider of a linear guide assembly. The nut seat is fixedly connected to an outer sleeve, which is hinged to a diagonal brace. The linear guide assembly is installed between the support end bearing seat and the motor mounting plate.

[0009] Furthermore, the H-shaped vertical axis fan blades adopt a straight airfoil design.

[0010] Furthermore, the lead screw is a trapezoidal lead screw, which has a trapezoidal thread with self-locking characteristics. After the motor is powered off, the nut on the lead screw uses its self-locking function to maintain the position of the nut seat.

[0011] Furthermore, the brake is installed at the lower part of the central column, and the motor is controlled by a wire to drive the retractable connection structure to brake.

[0012] Furthermore, the sensor on the upper part of the central column is used to synchronously monitor the external wind speed and the real-time rotation speed of the fan system.

[0013] Furthermore, the sensor at the bottom of the central column is used to collect the moving speed and real-time motion data of the installation platform.

[0014] Furthermore, the supporting structure is a steel structure, providing stable support for the central column.

[0015] Furthermore, the central column is a steel shaft with an internal cavity.

[0016] Furthermore, the linear guide assembly is arranged in a horizontal direction.

[0017] The present invention may also include:

[0018] A retractable vertical axis wind power generation method based on sensor monitoring, using the aforementioned power generation device, includes the following steps:

[0019] When natural wind blows the blades of the H-type vertical axis wind turbine, the airflow generates a pressure difference on the blade surface, creating air lift. The component of this lift in the direction of blade movement generates a driving torque, causing the blades to rotate around the axis of the central column, thus converting wind energy into mechanical energy. The torque generated by the rotation is transmitted to the retractable connection structure through the diagonal bracing members, which in turn drives the central column to rotate, transferring the mechanical energy to the generator at the bottom. Finally, the generator converts the mechanical energy into electrical energy for output.

[0020] The beneficial effects of this invention are as follows:

[0021] This invention enables real-time synchronous monitoring of ambient wind speed, wind turbine speed, and platform motion status by embedding sensor units at different heights inside the central column. This provides a reliable data foundation for the intelligent control of the wind turbine and improves the device's environmental perception and adaptive adjustment capabilities under complex operating conditions.

[0022] This invention uses a sleeve-type telescopic structure with screw drive as a retractable connection structure. Through the cooperation of the trapezoidal screw and the linear guide rail assembly, the rotational motion of the motor is converted into linear telescopic motion along the guide rail. The structure is simple, the transmission is precise, and the stability of the blade contraction and expansion process is effectively guaranteed.

[0023] This invention employs a trapezoidal thread with self-locking properties, enabling the screw nut pair to maintain the blade position by relying on the self-locking capability of the thread after the motor is de-energized. This allows the system to withstand wind load impacts during power generation and maintain positional stability during retraction, thereby improving the reliability and safety of the system.

[0024] This invention employs a modular design and standardized interfaces, allowing core functional units to be independently assembled and quickly replaced, effectively reducing manufacturing and maintenance costs. The entire system is compact, highly adaptable, and suitable for various complex application scenarios, including mobile platforms. Attached Figure Description

[0025] Appendix Figure 1 This is a schematic diagram of the structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the retractable connection structure of the present invention;

[0027] Figure 3 This is a schematic diagram of the internal structure of the retractable connection structure of the present invention.

[0028] In the attached diagram: 1. Central column; 2. Blades of the H-type vertical axis fan; 3. Retractable connection structure; 3-1. Support end bearing seat; 3-2. Bearing; 3-3. Lead screw; 3-4. Nut; 3-5. Nut seat; 3-6. Linear guide assembly; 3-7. External sleeve; 3-8. Coupling; 3-9. Reducer; 3-10. Motor; 3-11. Motor mounting plate; 4. Sensor; 5. Diagonal brace; 6. Support structure; 7. Brake; 8. Generator. Detailed Implementation

[0029] The present invention will now be further described with reference to the accompanying drawings.

[0030] This invention provides a retractable vertical axis wind power generation device based on sensor monitoring, as shown in the attached figure. Figure 1As shown, it includes: three H-shaped vertical axis fan blades 2, the H-shaped vertical axis fan blades 2 are connected to a retractable connection structure 3 by a diagonal brace 5, the retractable connection structure 3 is installed on a central column 1, two sensors 4 at different heights are embedded inside the central column 1, and a brake 7 and a generator 8 are installed at the lower end of the central column 1;

[0031] Three H-shaped vertical axis fan blades 2 are evenly arranged around the outer perimeter of the central column. Each blade is hinged to a retractable connection structure through a diagonal brace. When the retractable connection structure drives the diagonal brace to move, the blades can retract or expand synchronously.

[0032] As attached Figure 2-3 As shown, the retractable connection structure 3 includes a lead screw 3-3. One end of the lead screw 3-3 is connected to the support end bearing seat 3-1 via a bearing 3-2, and the other end is connected to the reducer 3-9 via a coupling 3-8. The reducer 3-9 is connected to the motor 3-10, which is mounted on a motor fixing plate 3-11. A nut 3-4 is fitted on the lead screw and mounted on a nut seat 3-5. The nut seat 3-5 is fixedly connected to the slider of the linear guide assembly 3-6 and to an outer sleeve 3-7. The outer sleeve 3-7 is hinged to the diagonal brace 5. The linear guide assembly 3-6 is mounted between the support end bearing seat 3-1 and the motor fixing plate 3-11.

[0033] When the motor starts, its power is amplified by the reducer and drives the trapezoidal lead screw to rotate. The rotational motion is converted into linear motion of the nut seat along the linear guide assembly through the lead screw and nut pair. The motion of the nut seat drives the diagonal brace 5, which is hinged to the external sleeve 3-7, to move, thereby driving the blade to retract and expand.

[0034] The H-type vertical axis fan blade 2 adopts a straight airfoil.

[0035] The lead screw 3-3 is a trapezoidal lead screw with a trapezoidal thread that has self-locking characteristics. After the motor 3-10 is de-energized, the nut 3-4 on the lead screw 3-3 uses its self-locking function to maintain the position of the nut seat 3-5, which can withstand wind load impact during power generation and maintain a stable storage state after retraction.

[0036] The brake is located at the lower part of the central column and above the generator, and is used to brake the retractable connecting structure. When a retraction action is required, the motor of the retractable connecting structure is activated to retract the blades, thereby achieving mechanical retraction control.

[0037] In this embodiment, the two sensors are embedded at different heights inside the central column, which protects the sensors from the influence of the external environment and ensures the spatial representativeness of the data acquisition.

[0038] The sensor on the upper part of the central column 1 is responsible for synchronously monitoring the external wind speed and the real-time rotation speed of the fan system, while the sensor on the lower part is used to collect the moving speed and real-time motion data of the installation platform.

[0039] Preferably, the support structure 6 is a steel structure, providing stable support for the central column 1.

[0040] The central column 1 is a steel shaft with an internal cavity.

[0041] In this embodiment, the linear guide rail assembly 3-6 is arranged in a horizontal direction.

[0042] Existing retractable fans suffer from problems such as inability to intelligently respond to complex working conditions, structural impact and high cost due to uncoordinated braking and retraction mechanisms, and limitations on their overall performance and wide application due to a lack of adaptive capabilities.

[0043] This embodiment also includes a retractable vertical axis wind power generation method based on sensor monitoring. Using the above-mentioned power generation device, the method includes the following steps:

[0044] When natural wind blows the blades of the H-type vertical axis fan, the airflow generates a pressure difference on the blade surface, creating air lift. The component of this lift in the direction of blade movement generates a driving torque, causing the blades to rotate around the axis of the central column 1, thus converting wind energy into mechanical energy. The torque generated by the rotation is transmitted to the retractable connecting structure 3 through the diagonal brace 5, which in turn drives the central column 1 to rotate, transmitting the mechanical energy to the generator 8 at the bottom. Finally, the generator 8 converts the mechanical energy into electrical energy for output.

[0045] The transmission mechanism of this invention adopts a scheme combining a lead screw and nut pair with a linear guide assembly. The self-locking characteristic of the trapezoidal thread ensures that the device can be reliably locked in any position, which not only guarantees transmission efficiency but also makes the retraction action reliable and stable.

[0046] All connection interfaces in this invention adopt a standardized design, which supports the quick disassembly and replacement of major functional components and can improve on-site maintenance efficiency.

[0047] The present invention achieves a balance between structural rigidity and weight through optimized material selection, thereby minimizing the overall weight while ensuring load-bearing capacity.

[0048] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A retractable vertical axis wind power generation device based on sensor monitoring, characterized in that, include: Three H-shaped vertical axis fan blades (2) are evenly distributed around the circumference. The H-shaped vertical axis fan blades (2) are connected to a retractable connection structure (3) by a diagonal brace (5). The retractable connection structure (3) is installed on a central column (1). Two sensors (4) at different heights are embedded inside the central column (1). A brake (7) and a generator (8) are installed at the lower end of the central column (1). The retractable connection structure (3) includes a lead screw (3-3), one end of which is connected to the support end bearing seat (3-1) via a bearing (3-2), and the other end is connected to the reducer (3-9) via a coupling (3-8). The reducer (3-9) is connected to the motor (3-10), and the motor (3-10) is mounted on the motor fixing plate (3-11). A nut (3-4) is fitted on the lead screw, and the nut (3-4) is mounted on a nut seat (3-5). The nut seat (3-5) is fixedly connected to the slider of the linear guide assembly (3-6), and the nut seat (3-5) is fixedly connected to the outer sleeve (3-7). The outer sleeve (3-7) is hinged to the diagonal brace (5). The linear guide assembly (3-6) is mounted between the support end bearing seat (3-1) and the motor fixing plate (3-11).

2. The retractable vertical axis wind power generation device based on sensor monitoring according to claim 1, characterized in that, The H-type vertical axis fan blade (2) adopts a straight airfoil.

3. The retractable vertical axis wind power generation device based on sensor monitoring according to claim 1 or 2, characterized in that, The lead screw (3-3) is a trapezoidal lead screw with a trapezoidal thread that has self-locking characteristics. After the motor (3-10) is de-energized, the nut (3-4) on the lead screw (3-3) uses its self-locking function to maintain the position of the nut seat (3-5).

4. The retractable vertical axis wind power generation device based on sensor monitoring according to claim 1, characterized in that, The brake (7) is installed at the lower part of the central column (1) and the motor (3-10) is controlled by the wire to drive the retractable connection structure (3) to brake.

5. The retractable vertical axis wind power generation device based on sensor monitoring according to claim 1, characterized in that, The sensor on the upper part of the central column (1) is used to synchronously monitor the external wind speed and the real-time rotation speed of the fan system.

6. The retractable vertical axis wind power generation device based on sensor monitoring according to claim 1, characterized in that, The sensor at the bottom of the central column (1) is used to collect the moving speed and real-time motion data of the installation platform.

7. The retractable vertical axis wind power generation device based on sensor monitoring according to claim 1, characterized in that, The supporting structure (6) is a steel structure that provides stable support for the central column (1).

8. The retractable vertical axis wind power generation device based on sensor monitoring according to claim 1, characterized in that, The central column (1) is a steel shaft with an internal cavity.

9. The retractable vertical axis wind power generation device based on sensor monitoring according to claim 1, characterized in that, The linear guide rail assembly (3-6) is arranged in a horizontal direction.

10. A retractable vertical axis wind power generation method based on sensor monitoring, characterized in that, The method of using the power generation device according to any one of claims 1-9 includes the following steps: When the natural wind blows the blades of the H-type vertical axis fan, the airflow generates a pressure difference on the blade surface, forming air lift. The component of this lift in the direction of blade movement generates a driving torque, causing the blades to rotate around the axis of the central column (1), realizing the conversion of wind energy into mechanical energy. The torque generated by the rotation is transmitted to the retractable connection structure (3) through the diagonal bracing member (5), thereby driving the central column (1) to rotate and transmitting mechanical energy to the generator (8) at the bottom. Finally, the generator (8) converts the mechanical energy into electrical energy for output.

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