Wind turbine generator steering auxiliary blade ice melting system based on sun tracking sensor

Abstract

The utility model discloses a wind turbine generator steering auxiliary blade ice melting system based on a sun tracking sensor, which belongs to the technical field of wind power generation and comprises the sun tracking sensor, a yaw system, an ice melting device, a control system, a support rod, a cabin, blades and a power generation module. The top of the supporting rod is connected with the cabin through the yaw system, the power generation module is arranged in the cabin, the cabin is connected with the blades through the power generation module, the ice melting devices are arranged in the blades, and the control system is arranged in the cabin. The system makes full use of solar energy which is clean energy, reduces dependence on external energy, reduces operation cost, environmental pollution and ice melting risks, enables the blades to better receive solar radiation by adjusting the direction of the wind turbine generator set in real time, improves ice melting efficiency, can improve power generation efficiency to a certain extent, and is suitable for large-scale popularization and application. And dual optimization of power generation and ice melting is realized.

Description

Technical Field

[0001] This utility model belongs to the field of wind power generation technology, specifically relating to a wind turbine steering assist blade de-icing system based on a solar tracking sensor. Background Technology

[0002] In high-altitude wind farms in humid climates, icing of wind turbine blades is a major factor preventing the wind farm from operating normally and generating electricity. During the icing process, the leading edge of the wind turbine blades is the most severely iced.

[0003] Wind turbine blade icing is a serious problem that affects power generation efficiency and equipment safety. Traditional de-icing methods have various drawbacks, such as electric heating de-icing being prone to lightning strikes and posing high maintenance risks; gas heating de-icing being inefficient and uneconomical; and external spraying of de-icing liquid requiring the unit to be shut down and having high requirements for safe flight.

[0004] Therefore, a wind turbine steering assist blade de-icing system based on a solar tracking sensor is needed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a wind turbine steering assist blade de-icing system based on a solar tracking sensor, in order to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a wind turbine steering assist blade de-icing system based on a solar tracking sensor, comprising a solar tracking sensor, a yaw system, a de-icing device, a control system, a support rod, a nacelle, blades, and a power generation module. The solar tracking sensor is connected above the nacelle, the top of the support rod is connected to the nacelle via the yaw system, the power generation module is located inside the nacelle, the nacelle is connected to the blades via the power generation module, the blades are equipped with a de-icing device, and the control system is located inside the nacelle.

[0007] As a preferred embodiment, the solar tracking sensor includes a dual-axis photoelectric solar tracking sensor and a communication module.

[0008] As a preferred embodiment, the yaw system includes a motor, a reducer, a slewing bearing, and an azimuth controller. The motor is connected inside a support rod, and the output shaft of the motor is connected to the slewing bearing via the reducer. The slewing bearing is connected to the engine room.

[0009] As a preferred embodiment, the motor is configured as a high-speed, low-torque DC motor.

[0010] As a preferred embodiment, the ice-melting device is made of a high-efficiency thermally conductive material, which is located inside the blades and is a graphene composite thermally conductive sheet.

[0011] As a preferred embodiment, the control system includes a controller, a data acquisition module, and a communication module, wherein the controller is configured as an industrial-grade programmable logic controller.

[0012] As a preferred embodiment, the data acquisition module collects solar position information from the solar tracking sensor in real time, the controller analyzes and processes the collected data, and the communication module sends precise control commands to the yaw system and the ice melting device to achieve intelligent and coordinated operation of the entire system.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention fully utilizes solar energy, a clean energy source, reducing dependence on external energy sources, lowering operating costs, environmental pollution, and the risk of de-icing. By adjusting the direction of the wind turbine in real time, the blades can better receive solar radiation, which not only improves de-icing efficiency but also, to some extent, improves power generation efficiency, achieving dual optimization of power generation and de-icing. Attached Figure Description

[0015] Figure 1 This is a flowchart illustrating the overall functionality of this utility model.

[0016] Figure 2 This is a block diagram of the solar tracking sensor of this utility model;

[0017] Figure 3 This is a block diagram of the yaw system of this utility model;

[0018] Figure 4 This is a structural block diagram of the motor of this utility model;

[0019] Figure 5 This is a structural block diagram of the ice-melting device of this utility model;

[0020] Figure 6 This is a structural block diagram of the control system of this utility model;

[0021] Figure 7 This is a three-dimensional structural diagram of the present invention.

[0022] In the diagram: 1. Solar tracking sensor; 11. Dual-axis photoelectric solar tracking sensor; 12. Communication module one; 2. Yaw system; 21. Motor; 211. High-speed, low-torque DC motor; 22. Gearbox; 23. Slewing bearing; 24. Azimuth controller; 3. Ice melting device; 31. High-efficiency thermal conductive material; 4. Control system; 41. Controller; 42. Data acquisition module; 43. Communication module two; 5. Support rod; 6. Nacelle; 7. Blades; 8. Power generation module. Detailed Implementation

[0023] The present invention will be further described below with reference to the embodiments.

[0024] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0025] Please see Figure 1-7 This utility model provides a wind turbine steering assist blade de-icing system based on a solar tracking sensor, including a solar tracking sensor 1, a yaw system 2, a de-icing device 3, a control system 4, a support rod 5, a nacelle 6, blades 7, and a power generation module 8. The solar tracking sensor 1 is connected above the nacelle 6. The top of the support rod 5 is connected to the nacelle 6 through the yaw system 2. The power generation module 8 is located inside the nacelle 6. The nacelle 6 is connected to the blades 7 through the power generation module 8. The de-icing device 3 is installed inside the blades 7. The control system 4 is located inside the nacelle 6.

[0026] The solar tracking sensor 1 includes a dual-axis photoelectric solar tracking sensor 11 and a communication module 12. The communication module 12 is configured with an RS485 communication interface using the Modbus protocol. The dual-axis photoelectric solar tracking sensor integrates multiple high-precision photosensitive elements. These photosensitive elements can sense the light intensity from different directions. By comparing the differences in light intensity received by different photosensitive elements, the azimuth and altitude angles of the sun can be accurately calculated. The dual-axis photoelectric solar tracking sensor converts the light intensity signal into angle data and interacts with the control system 4 through the communication module 12 to ensure the accuracy and stability of data transmission.

[0027] The yaw system 2 includes a motor 21, a reducer 22, a slewing bearing 23, and an orientation controller 24. The motor 21 is connected inside the support rod 5. The output shaft of the motor 21 is connected to the slewing bearing 23 through the reducer 22. The slewing bearing 23 is connected to the nacelle 6.

[0028] The motor 21 is a high-speed, low-torque DC motor 211. The torque output by the motor 21 is reduced and increased by multiple stages by the reducer 22, which drives the slewing bearing 23 to adjust the orientation of the wind turbine 21 group. The orientation controller 24 receives the turning command sent by the control system 4 and precisely controls the forward and reverse rotation and speed of the motor 21 according to the target angle in the command, so as to ensure that the wind turbine 21 group can quickly and smoothly turn to the best position to receive solar radiation.

[0029] The ice-melting device 3 is made of a high-efficiency heat-conducting material 31, which is located inside the blade 7. The high-efficiency heat-conducting material 31 is a graphene composite heat-conducting sheet. When solar radiation energy is absorbed by the blade 7, the heat is quickly transferred to the surface of the blade 7 through the heat-conducting sheet, realizing the efficient conversion of solar energy into thermal energy and accelerating the melting of the ice layer.

[0030] The control system 4 includes a controller 41, a data acquisition module 42, and a communication module 43. The controller 41 is an industrial-grade programmable logic controller 41.

[0031] The data acquisition module 42 collects the solar position information transmitted by the solar tracking sensor 1 in real time. The controller 41 analyzes and processes the collected data. The communication module 43 sends precise control commands to the yaw system 2 and the ice melting device 3 to realize the intelligent coordinated operation of the entire system.

[0032] The working principle and usage process of this utility model are as follows: After installing the solar tracking sensor 1, when encountering low temperature icing weather on the blades 7, the solar tracking sensor 1 is manually controlled to work. The information collected by the working solar tracking sensor 1 is transmitted to the yaw system 2 for tracking yaw, so that the wind turbine 21 sets of blades 7 are always aligned with the sun. Sunlight can directly shine on the blades 7. When the sunlight is sufficient, after the solar radiation energy is absorbed by the blades 7, the heat is quickly transferred to the surface of the blades 7 through the heat conduction plate, realizing the efficient conversion of solar energy into thermal energy and accelerating the melting of the ice layer.

[0033] The information collected by solar tracking sensor 1 can be transmitted in the following two ways:

[0034] 1) The solar tracker directly sends angle information to the control system 4. The control system 4 determines the yaw angle based on the angle information and executes the yaw action, so that the windward side of the cabin 6 is facing the sun.

[0035] 2) The solar tracker collects the sun's direction and sends left or right yaw commands to the control system 4. The 21 wind turbines execute the yaw action, and finally the windward side of the nacelle 6 is facing the sun.

[0036] Once the ice melt is complete, control solar tracking sensor 1 to stop working. Solar tracking sensor 1 will no longer track the sun and will enter the normal power generation process.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wind turbine steering-assisted blade de-icing system based on a solar tracking sensor, comprising a solar tracking sensor (1), a yaw system (2), a de-icing device (3), a control system (4), a support rod (5), a nacelle (6), blades (7), and a power generation module (8), characterized in that: The solar tracking sensor (1) is connected above the nacelle (6). The top of the support rod (5) is connected to the nacelle (6) through the yaw system (2). The power generation module (8) is located inside the nacelle (6). The nacelle (6) is connected to the blade (7) through the power generation module (8). The blade (7) is equipped with an ice melting device (3). The control system (4) is located inside the nacelle (6).

2. The wind turbine steering assist blade de-icing system based on a solar tracking sensor according to claim 1, characterized in that: The solar tracking sensor (1) includes a dual-axis photoelectric solar tracking sensor (11) and a communication module (12).

3. The wind turbine steering assist blade de-icing system based on a solar tracking sensor according to claim 1, characterized in that: The yaw system (2) includes a motor (21), a reducer (22), a slewing bearing (23), and an orientation controller (24). The motor (21) is connected inside the support rod (5). The output shaft of the motor (21) is connected to the slewing bearing (23) through the reducer (22). The slewing bearing (23) is connected to the engine room (6).

4. The wind turbine steering assist blade de-icing system based on a solar tracking sensor according to claim 3, characterized in that: The motor (21) is configured as a high-speed, low-torque DC motor (211).

5. The wind turbine steering assist blade de-icing system based on a solar tracking sensor according to claim 1, characterized in that: The ice-melting device (3) is made of a high-efficiency thermal conductive material (31), which is located inside the blade (7). The high-efficiency thermal conductive material (31) is a graphene composite thermal conductive sheet.

6. The wind turbine steering assist blade de-icing system based on a solar tracking sensor according to claim 1, characterized in that: The control system (4) includes a controller (41), a data acquisition module (42) and a communication module (43). The controller (41) is an industrial-grade programmable logic controller (41).

7. The wind turbine steering assist blade de-icing system based on a solar tracking sensor according to claim 6, characterized in that: The data acquisition module (42) collects the solar position information transmitted by the solar tracking sensor (1) in real time. The controller (41) analyzes and processes the collected data. The communication module (43) sends precise control commands to the yaw system (2) and the ice melting device (3) to realize the intelligent coordinated operation of the entire system.

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