Wind generating set

Abstract

The utility model discloses a wind generating set, which relates to the technical field of wind power generation, and comprises a tower drum, a cabin, a control assembly, a hub and a plurality of blades, a yaw device is arranged at the top of the tower drum, the yaw device is connected with the cabin, a power generation device is arranged in the cabin, the control assembly is in signal connection with the yaw device, and the hub is connected with the power generation device. The control assembly is used for monitoring the current environment and enabling the yaw device to drive the cabin to rotate around the center axis of the tower drum, the hub is in transmission connection with an input shaft of the power generation device, the multiple blades are all connected with the hub, the multiple blades are circumferentially arranged around the center of the hub, and a solar cell is arranged on the side, away from the tower drum, of each blade. Solar power generation is achieved by arranging the solar cells on the blades of the wind driven generator, the current environment is recognized through the control assembly, a power generation mode with the higher power generation efficiency is automatically selected for power generation, and it is ensured that the higher power generation efficiency can be achieved in any environment.

Description

Technical Field

[0001] This utility model relates to the field of wind power generation technology, and in particular to a wind turbine generator set. Background Technology

[0002] With the continuous development of new energy sources, wind energy has gained popularity. As wind energy is an inexhaustible and clean renewable energy source in nature, it has achieved certain developments in the field of wind power generation based on its characteristics.

[0003] However, wind power generation equipment can only generate electricity in windy weather, and cannot generate electricity in many windless weather conditions. This affects the utilization rate of wind power generation equipment, resulting in a relatively low power generation efficiency of wind turbines.

[0004] Therefore, it is necessary to provide a new wind turbine generator set to solve the above-mentioned technical problems. Utility Model Content

[0005] The main objective of this invention is to propose a wind turbine generator set, which aims to improve the technical problem of low efficiency of wind turbine generators in the prior art.

[0006] To achieve the above objectives, this utility model proposes a wind turbine generator set, comprising:

[0007] A tower, the top of which is equipped with a yaw device;

[0008] The yaw device is connected to the nacelle, and a power generation device is installed inside the nacelle;

[0009] A control component is signal-connected to the yaw device, the control component is used to monitor the current environment, and to cause the yaw device to drive the nacelle to rotate about the central axis of the tower;

[0010] A hub, which is connected to the input shaft of the power generation device in a driving manner;

[0011] Multiple blades are connected to the hub and are arranged in a circle around the center of the hub. Each blade has a solar cell on the side facing away from the tower.

[0012] In one embodiment, the solar cell is a flexible thin-film solar panel.

[0013] In one embodiment, the blade is provided with a groove, the wind turbine generator set further includes a cleaning device, a fixing device is provided in the groove, the solar cell is installed in the groove and connected to the fixing device, the cleaning device is slidably installed on the fixing device and is attached to the side of the solar cell away from the blade.

[0014] In one embodiment, the fixing device includes a motor, a lead screw drivenly connected to the output shaft of the motor, and a sliding member threadedly connected to the lead screw. The cleaning device includes a cleaning rod and a fixing bracket connected to each other. The fixing bracket is connected to the sliding member, and the cleaning rod is attached to the side of the solar cell away from the blade.

[0015] In one embodiment, the depth of the groove is equal to the thickness of the solar cell, and the outer surface of the blade is flush with the outer surface of the solar cell.

[0016] In one embodiment, the number of fixing devices in each groove is two, the two fixing devices are arranged at intervals, and the two ends of the solar cell are respectively connected to the two fixing devices.

[0017] In one embodiment, there are two fixing brackets, which are respectively disposed on both sides of the cleaning rod and are respectively connected to the sliding parts on the two fixing devices.

[0018] In one embodiment, each blade has a plurality of grooves, and the number of solar cells is also a plurality. The number of grooves is equal to the number of solar cells, and they are arranged in a one-to-one correspondence.

[0019] In one embodiment, the control component includes a control unit, a wind direction and speed measuring instrument, and a light intensity measuring instrument. The wind direction measuring instrument and the light intensity measuring instrument are both signal-connected to the control unit, and the control unit is signal-connected to the yaw device.

[0020] In one embodiment, the control component is signal-connected to the motor.

[0021] In the above scheme, the wind turbine generator set includes a tower, nacelle, control components, hub, and multiple blades. A yaw device is installed on the top of the tower and is connected to the nacelle. A power generation device is installed inside the nacelle. The control components are signal-connected to the yaw device. The control components are used to monitor the current environment and drive the nacelle to rotate around the central axis of the tower. The hub is connected to the input shaft of the power generation device. Multiple blades are connected to the hub and are arranged in a circle around the center of the hub. A solar cell is installed on the side of each blade away from the tower. Specifically, the tower is fixed in a suitable location for both wind and solar power generation. A yaw device is installed at the top of the tower, and the nacelle is then fixed to the yaw device at the top of the tower. A wind-powered generator is installed in the nacelle, with the hub connected to the input shaft of the generator. Multiple blades are connected to the hub and arranged circumferentially around the center of the hub. Each blade has a solar panel on the side facing away from the tower. The wind turbine is equipped with a control component that determines the appropriate power generation method based on the current environment and connects the electricity generated by the solar panels and the wind-driven generator in parallel to the power grid for supply. When the wind conditions are favorable, the control component monitors the wind conditions and activates the yaw device, driving the nacelle to rotate around the central axis of the tower. This causes the blades to face the wind, which in turn rotates the hub, causing the input shaft of the generator to rotate, thus generating wind power. The control component then feeds the generated electricity into the power grid. Power supply: When wind is insufficient and sunlight is abundant, the control component monitors the wind conditions and activates the yaw device, driving the nacelle to rotate around the central axis of the tower. This aligns the solar cells on the blades with the sunlight, allowing them to generate electricity more efficiently and achieve maximum power generation. The control component then feeds the generated electricity into the grid for power supply. When wind and sunlight are abundant, satisfying both conditions, the control component simultaneously collects data on wind and sunlight intensity. Its internal algorithm predicts and calculates the power generation from wind and solar power, compares the results, and automatically selects the higher power generation mode. Specifically, if wind power is higher than solar power, wind power is selected; if it is lower, solar power is selected. This ensures high power generation regardless of the environment. In this invention, solar cells on the wind turbine blades generate solar power on sunny days, and the control component automatically selects the more efficient power generation mode based on the current environment, ensuring high power generation efficiency in all conditions. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0023] Figure 1 A schematic diagram of the overall structure of a wind turbine generator set according to an embodiment of the present invention;

[0024] Figure 2 A schematic diagram of the overall structure of a wind turbine generator set provided by this utility model from another perspective;

[0025] Figure 3 This is a schematic diagram of the installation of an embodiment of the solar cell provided by this utility model;

[0026] Figure 4 A connection diagram of an embodiment of the fixing device and cleaning device provided by this utility model.

[0027] Explanation of icon numbers:

[0028] 100. Wind turbine generator set; 1. Tower; 2. Yaw device; 3. Nacelle; 4. Hub; 5. Blade; 6. Solar cell; 51. Groove; 7. Cleaning device; 511. Fixing device; 511a. Motor; 511b. Lead screw; 71. Cleaning rod; 72. Fixing bracket.

[0029] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0031] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0032] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0033] Please see Figure 1 and Figure 2This utility model proposes a wind turbine generator set 100, including a tower 1, a nacelle 3, a control component, a hub 4, and multiple blades 5. A yaw device 2 is provided on the top of the tower 1 and is connected to the nacelle 3. A power generation device is provided inside the nacelle 3. The control component is signal-connected to the yaw device 2. The control component is used to monitor the current environment and drive the nacelle 3 to rotate around the central axis of the tower 1. The hub 4 is drive-connected to the input shaft of the power generation device. Multiple blades 5 are all connected to the hub 4 and are arranged in a circle around the center of the hub 4. A solar cell 6 is provided on the side of each blade 5 away from the tower 1. Specifically, the tower 1 is fixed in a suitable location for wind and solar power generation. A yaw device 2 is installed at the top of the tower 1. The nacelle 3 is then fixed to the yaw device 2 at the top of the tower 1. A wind-powered generator is installed in the nacelle 3. The hub 4 is connected to the input shaft of the generator. Multiple blades 5 are connected to the hub 4 and are arranged in a circle around the center of the hub 4. A solar cell 6 is installed on the side of each blade 5 facing away from the tower 1. The wind turbine generator 100 is equipped with a control component. The control component can determine the current environment and select an appropriate power generation method. It connects the electricity generated by the solar cells 6 and the electricity generated by the wind-driven generator in parallel to the power grid for power supply. When the wind conditions are good, the control component monitors the wind conditions and controls the yaw device 2 to start, driving the nacelle 3 to rotate around the central axis of the tower 1. This causes the blades 5 to face the wind, which in turn causes the hub 4 to rotate, thereby rotating the input shaft of the generator and generating wind power. The control component then transmits the wind power... The power generated is fed into the grid to provide electricity. When the wind is insufficient and the sun is strong, the control component monitors the wind conditions and activates the yaw device 2, driving the nacelle 3 to rotate around the central axis of the tower 1. This causes the solar cells 6 on the blades 5 to face the sun, allowing the solar cells 6 to generate electricity more efficiently and achieve maximum power generation efficiency. The control component then feeds the electricity generated by the solar cells 6 into the grid to provide electricity. When the wind is strong and the sun is strong, satisfying both power generation conditions, the control component collects both wind and sunlight intensity data simultaneously. It then uses its internal algorithm to predict and calculate the power generated by wind power and solar power, compares the results, and automatically selects the higher power generation mode. That is, if the wind power generation is higher than the solar power generation, the wind power mode is selected; if the wind power generation is lower than the solar power generation, the solar power mode is selected. This ensures that the system can automatically select the mode with higher power generation regardless of the environment. In this embodiment, solar power generation under sunny conditions is achieved by setting solar cells 6 on the blades 5 of the wind turbine. Furthermore, the control component identifies the current environment and automatically selects a power generation method with higher power generation efficiency to ensure high power generation efficiency regardless of the environment.

[0034] Furthermore, the yaw device 2 includes a yaw bearing, a yaw actuator, a yaw brake / clamp, and a yaw control system. The yaw bearing is located between the top of the tower 1 and the bottom of the nacelle 3, allowing the nacelle 3 to rotate freely relative to the tower 1. The yaw actuator, typically composed of an electric motor, a reducer, and a pinion, provides rotational power to rotate the nacelle 3 to the desired position. The yaw brake / clamp is used to fix the position of the nacelle 3, prevent unplanned rotation, and assist in controlling the rotational speed of the nacelle 3 when necessary. The yaw control system automatically calculates and determines when and how to adjust the direction of the nacelle 3 based on wind direction and speed data measured by the control components. Modern wind turbines are typically equipped with advanced control systems that can monitor wind direction changes in real time and respond quickly.

[0035] In one embodiment, the solar cell 6 is a flexible thin-film solar cell 6 panel. The flexible thin-film solar cell 6 panel is laid flat and adhered to the windward side of the blade 5. To maximize the utilization of the flexible thin-film solar cell 6 and fully utilize the windward space of the blade 5, rectangular flexible thin-film solar cells 6 are arranged in an array on the windward side of the blade 5. The flexible thin-film solar cell 6 has good flexibility and can be adhered to surfaces of different shapes and curvatures. This is particularly important for installation on wind turbine blades 5, as blades 5 typically have a certain curvature and complex shape. Flexible materials can better adapt to these shapes, thereby improving installation flexibility and efficiency. Compared to traditional silicon-based solar cells 6, flexible thin-film solar cells 6 are generally lighter. This helps reduce the structural strength requirements of the wind turbine blade 5 without significantly affecting the rotational performance of the blade 5, helping to maintain or even improve overall power generation efficiency. Flexible thin-film solar cells 6 also exhibit good energy conversion efficiency under low light conditions. This means that even under less than optimal lighting conditions, they can still effectively convert solar energy into electrical energy, improving all-weather energy collection capabilities. The manufacturing process of flexible thin-film solar cells 6 may be simpler than that of traditional solar cells 6, potentially leading to cost advantages. Furthermore, its lightweight nature may reduce transportation and installation costs. Flexible film technology also exhibits good weather resistance, maintaining stable performance under extreme weather conditions.

[0036] Please see Figure 1In one embodiment, the blade 5 is provided with a groove 51, and the wind turbine generator set 100 also includes a cleaning device 7. A fixing device 511 is provided in the groove 51. The solar cell 6 is installed in the groove 51 and connected to the fixing device 511. The cleaning device 7 is slidably installed on the fixing device 511 and is attached to the side of the solar cell 6 away from the blade 5. Specifically, by installing the solar cell 6 in the groove 51 on the blade 5, these cells can be effectively protected from direct damage from the external environment, such as physical damage that may be caused by flying stones, sandstorms, etc. In addition, this design can also reduce the impact of severe weather conditions on the solar cell 6. Since the solar cell 6 needs to be kept clean to maintain high-efficiency energy conversion, a cleaning device 7 is provided in this embodiment. The cleaning device 7 is attached to the side of the solar cell 6 that is in contact with the outside. The cleaning device 7 slides along the fixing device 511 and can automatically slide to clean the solar cell 6, ensuring the optimal working condition of the solar cell 6. Using the fixing device 511 to install the solar cell 6 not only provides stable support, but also allows for more precise adjustment of the position of the solar cell 6, ensuring that they can capture sunlight to the maximum extent. In addition, this structure enhances the mechanical stability of the entire system, helping to resist vibrations and other stresses at high wind speeds.

[0037] Please see Figure 1 , Figure 3 and Figure 4 In one embodiment, the fixing device 511 includes a motor 511a, a lead screw 511b driven by the output shaft of the motor 511a, and a sliding member threadedly connected to the lead screw 511b. The cleaning device 7 includes a cleaning rod 71 and a fixing bracket 72 connected to each other. The fixing bracket 72 is connected to the sliding member, and the cleaning rod 71 is attached to the side of the solar cell 6 away from the blade 5. When the solar cell 6 needs to be cleaned, the motor 511a is started, and the lead screw 511b driven by the output shaft of the motor 511a will also rotate with the output shaft of the motor 511a. The sliding member threadedly connected to the lead screw 511b will move on the lead screw 511b. The fixing bracket 72 is connected to the sliding member, so the fixing bracket 72 and the cleaning plate will move along the length direction of the lead screw 511b with the sliding member. The cleaning plate is attached to the side of the solar cell 6 that is in contact with the outside. In this way, the cleaning rod 71 will clean the solar cell 6 during the movement, thus achieving fully automated cleaning.

[0038] In one embodiment, the depth of the groove 51 is equal to the thickness of the solar cell 6, and the outer surface of the blade 5 is flush with the outer surface of the solar cell 6. When the solar cell 6 is flush with the surface of the blade 5, the impact on the original aerodynamic design of the blade 5 can be minimized. This means that during rotation, the blade 5 can cut through the airflow more smoothly, reducing additional air resistance and thus improving wind power generation efficiency. Embedding the solar cell 6 into the groove 51 of the blade 5 and ensuring that its outer surface is flush with the surface of the blade 5 helps to maintain or even optimize the aerodynamic characteristics of the blade 5, reducing unnecessary air resistance, thereby not affecting or even improving wind power generation efficiency.

[0039] Please see Figure 3 and Figure 4 In one embodiment, each groove 51 contains two fixing devices 511, spaced apart, with each end of the solar cell 6 connected to one of the two fixing devices 511. By using independent fixing devices 511 at each end of the solar cell 6, a more stable support structure is provided, reducing shaking or displacement caused by the external environment and ensuring the solar cell 6 is stably installed on the blade 5. When the solar cell 6 is subjected to external forces, the fixing devices 511 at both ends help to evenly distribute these stresses, avoiding damage caused by excessive local stress and extending the lifespan of the solar cell 6. Using two spaced fixing devices 511 allows for more precise adjustment of the position and angle of the solar cell 6 during installation, ensuring it receives sunlight at the optimal angle, thereby maximizing energy collection efficiency. If inspection, cleaning, or replacement of the solar cell 6 is required, this two-end fixing method makes operation more convenient. The solar cell 6 can be easily removed simply by releasing the fixing devices 511 at both ends, reducing maintenance difficulty and time costs. By rationally arranging the position of the fixing device 511, the solar cell 6 can be effectively fixed and supported without increasing the space requirement, while maintaining the smooth shape of the blade 5 and not affecting its aerodynamic performance.

[0040] Please see Figure 3 and Figure 4In one embodiment, two fixing brackets 72 are provided, each positioned on one side of the cleaning rod 71. Each fixing bracket 72 is connected to a sliding member on one of the two fixing devices 511. By fixing both ends of the cleaning rod 71 with the two fixing brackets 72, the cleaning rod 71 is kept horizontal. When cleaning is required, the motors 511a in both fixing devices 511 are started simultaneously, causing the two sliding members to move synchronously in the same direction. This, in turn, causes the two fixing brackets 72 to move synchronously, ensuring that the movement speed and direction of both sides of the cleaning rod 71 are synchronized. This, combined with the horizontal position of the cleaning rod 71, ensures the cleaning efficiency of the cleaning rod 71.

[0041] Please see Figure 1 In one embodiment, each blade 5 has multiple grooves 51 and multiple solar cells 6, with the number of grooves 51 equal to the number of solar cells 6, and they are arranged in a one-to-one correspondence. By setting multiple grooves 51 and installing multiple solar cells 6 on each blade 5, the total solar energy collection area can be significantly increased, thereby improving the overall energy collection efficiency. This method allows for full utilization of sunlight resources even on the limited surface of the blade 5. The position and number of grooves 51 can be flexibly adjusted according to the specific shape and size of the blade 5 to achieve the best energy absorption effect. If a single solar cell 6 fails or is damaged, it will not affect the operation of other cells, as they are independently installed in their respective grooves 51. This reduces the failure risk of the entire system and improves the reliability and stability of the system. Since each solar cell 6 is installed independently, it is more convenient to clean, repair, or replace it when necessary. Only the specific groove 51 and solar cell 6 need to be operated on without interfering with the operation of other components. The number and configuration of solar cells 6 on each blade 5 can be flexibly adjusted according to different environmental conditions and energy requirements to meet the needs of specific application scenarios.

[0042] In one embodiment, the control component includes a control unit, a wind direction and speed measuring instrument, and a light intensity measuring instrument. Both the wind direction and speed measuring instrument are signal-connected to the control unit, and the control unit is signal-connected to the yaw device 2. When the wind conditions are good, the wind direction and speed measuring instrument detects the wind conditions and controls the yaw device 2 to start, driving the nacelle 3 to rotate around the central axis of the tower 1. This causes the blades 5 to face the wind, which in turn causes the hub 4 to rotate, thereby rotating the input shaft of the power generation device, achieving wind power generation. The control unit then feeds the generated electricity into the power grid for power supply. When the wind is insufficient and there is sufficient sunlight, the light intensity measuring instrument detects the light intensity and controls the yaw device 2 to start, driving the nacelle 3 to rotate around the central axis of the tower 1. This causes the solar cells 6 on the blades 5 to face the sunlight, allowing the solar cells 6 to generate electricity more efficiently and achieve maximum power generation efficiency. The control unit then feeds the generated electricity into the power grid for power supply. When the wind is sufficient and there is sufficient sunlight, satisfying both power generation conditions, the wind direction and speed measuring instrument and the light intensity measuring instrument will simultaneously... The system collects wind and sunlight intensity data in real time, and uses an internal algorithm in the control unit to predict and calculate the power output of wind power and solar power, compares the results, and automatically selects the higher power output as the power generation mode. That is, if wind power output is higher than solar power output, wind power is selected; if wind power output is lower than solar power output, solar power is selected. This ensures that the system can automatically select the mode with higher power output regardless of the environment. In this embodiment, wind direction and speed meters and light intensity meters are used to monitor wind direction, wind speed, and light intensity, respectively. This allows for real-time and accurate acquisition of current environmental wind conditions and light intensity. Based on the data collected from these meters, the control unit can intelligently analyze and decide which power generation mode to use, enabling real-time switching between power generation modes.

[0043] In one embodiment, the control unit is signal-connected to the motor 511a. The pollution index of the solar cell 6 is calculated based on the light intensity data detected by the light intensity meter. When the pollution index exceeds a preset threshold, the motor 511a is started to clean the surface of the solar cell 6, thus achieving automated cleaning.

[0044] The above are merely exemplary embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the technical concept of this utility model and the contents of the specification and drawings of this utility model, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A wind turbine generator set, characterized in that, include: A tower, the top of which is equipped with a yaw device; The yaw device is connected to the nacelle, and a power generation device is installed inside the nacelle; A control component is signal-connected to the yaw device, the control component is used to monitor the current environment, and to cause the yaw device to drive the nacelle to rotate about the central axis of the tower; A hub, which is connected to the input shaft of the power generation device in a driving manner; Multiple blades are connected to the hub and are arranged in a circle around the center of the hub. Each blade has a solar cell on the side facing away from the tower.

2. The wind turbine generator set as described in claim 1, characterized in that, The solar cell is a flexible thin-film solar panel.

3. The wind turbine generator set as described in claim 1, characterized in that, The blade is provided with a groove, and the wind turbine generator set also includes a cleaning device. A fixing device is provided in the groove. The solar cell is installed in the groove and connected to the fixing device. The cleaning device is slidably installed on the fixing device and is attached to the side of the solar cell away from the blade.

4. The wind turbine generator set as described in claim 3, characterized in that, The fixing device includes a motor, a lead screw that is drivenly connected to the output shaft of the motor, and a sliding member that is threadedly connected to the lead screw. The cleaning device includes a cleaning rod and a fixing bracket that are connected to each other. The fixing bracket is connected to the sliding member, and the cleaning rod is attached to the side of the solar cell away from the blade.

5. The wind turbine generator set as described in claim 3, characterized in that, The depth of the groove is equal to the thickness of the solar cell, and the outer surface of the blade is flush with the outer surface of the solar cell.

6. The wind turbine generator set as described in claim 4, characterized in that, The number of fixing devices in each groove is two, and the two fixing devices are arranged at intervals. The two ends of the solar cell are respectively connected to the two fixing devices.

7. The wind turbine generator set as described in claim 6, characterized in that, The number of fixed brackets is two, and the two fixed brackets are respectively disposed on both sides of the cleaning rod. The two fixed brackets are respectively connected to the sliding parts on the two fixed devices.

8. The wind turbine generator set as described in any one of claims 3 to 7, characterized in that, The number of grooves on each blade is multiple, and the number of solar cells is multiple. The number of grooves is equal to the number of solar cells, and they are arranged in a one-to-one correspondence.

9. The wind turbine generator set as described in any one of claims 4 to 7, characterized in that, The control component includes a control unit, a wind direction and speed measuring instrument, and a light intensity measuring instrument. The wind direction measuring instrument and the light intensity measuring instrument are both signal-connected to the control unit, and the control unit is signal-connected to the yaw device.

10. The wind turbine generator set as described in claim 9, characterized in that, The control component is connected to the motor signal.

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