Wind and light coupling power generation device

Abstract

The application discloses a wind-solar coupling power generation device, which comprises a base, a cylinder, a cabin, a power generation assembly and a plurality of fan blades, the lower end of the cylinder is connected with the base, the cabin is rotatably arranged at the upper end of the cylinder along the circumference of the cylinder, the power generation assembly is arranged in the cabin, a thin film type solar panel is arranged on the outer surface of the fan blades and / or the outer circumferential surface of the cylinder, and the cabin can drive the fan blades to rotate towards the direction of the wind or the sun. The wind-solar coupling power generation device of the embodiment of the application can utilize wind energy and solar energy to generate power at the same time through the arrangement of the thin film type solar panel, and can automatically adjust the position according to the wind direction and the sun direction, so that the power generation efficiency is maximized. In addition, the fan blades can be automatically closed in severe weather conditions to prevent the blades from being damaged, and the fan blades also have a self-cleaning function, so that the best power generation capacity is ensured.

Description

Technical Field

[0001] This invention relates to the field of renewable energy utilization technology, and in particular to a wind-solar coupled power generation device. Background Technology

[0002] Wind energy is the fastest-growing clean energy source among renewable energy sources, and wind power generation is also the power generation method with the greatest potential for large-scale development and commercialization.

[0003] Among related technologies, wind power generation is greatly affected by wind conditions. During the windy season when the wind is strong, the generator can produce enough electricity to be sent to the grid. However, during the season when the wind is weak, the production capacity of wind turbine generators will be significantly insufficient, making it difficult to meet the demand. This also makes it difficult for wind power generation to provide users with electricity continuously and stably in different seasons, which limits the promotion and application of wind power generation technology. Summary of the Invention

[0004] The present invention aims to at least partially solve one of the technical problems in the related art.

[0005] Therefore, embodiments of the present invention propose a wind-solar coupled power generation device for sustainable and stable power generation.

[0006] The wind-solar coupled power generation device of this invention includes a base, a cylindrical body, a nacelle, a power generation component, and multiple wind turbine blades. The lower end of the cylindrical body is connected to the base. The nacelle is rotatably disposed at the upper end of the cylindrical body along its circumference. The power generation component is disposed inside the nacelle. Thin-film solar panels are provided on the outer surface of the wind turbine blades and / or on the outer circumferential surface of the cylindrical body. Both the wind turbine blades and the solar panels are connected to the power generation component. The nacelle can drive the wind turbine blades to rotate in the direction of the wind or the direction of the sun.

[0007] The wind-solar coupled power generation device of this invention can generate electricity by utilizing both wind and solar energy simultaneously, and can be adjusted according to different wind directions and sun positions. It not only has a wide range of applications and good stability, but also has higher power generation efficiency.

[0008] In some embodiments, the wind-solar coupled power generation device further includes a controller for adjusting the power generation mode of the wind-solar coupled power generation device and controlling the movement of the nacelle and the wind turbine blades.

[0009] In some embodiments, the power generation assembly includes a first power generation assembly for wind power generation and a second power generation assembly for solar power generation, wherein the first power generation assembly is connected to the wind turbine blades and the second power generation assembly is connected to the solar panel.

[0010] In some embodiments, the first power generation component includes a generator and a universal rotating head connected to the input shaft of the generator, and the wind turbine blades are connected to the universal rotating head.

[0011] In some embodiments, the wind-solar coupled power generation device further includes a solar tracking and positioning component for determining the position of the sun, and the controller controls the nacelle and the omnidirectional rotating head to rotate according to the signal provided by the solar tracking and positioning component.

[0012] In some embodiments, the wind turbine blades are switchable between an open position and a closed position. In the open position, the wind turbine blades can be used for wind power generation and / or solar power generation. In the closed position, a plurality of the wind turbine blades are stacked.

[0013] In some embodiments, the wind-solar coupled power generation device further includes a wind speed sensor disposed above the cylinder or the power generation component, and the controller controls the wind turbine blades to switch between the open position and the closed position based on the signal provided by the wind speed sensor.

[0014] In some embodiments, the wind turbine blade includes a first blade segment and a second blade segment, one end of the first blade segment being rotatably connected to the universal rotating head, and one end of the second blade segment being rotatably connected to the other end of the first blade segment.

[0015] In some embodiments, the opening position includes a first opening position and a second opening position, wherein the first blade segment has a first windward surface and the second blade segment has a second windward surface. In the first opening position, the extension surfaces of the first windward surface intersect to enable the wind turbine blade to be used for wind power generation, and in the second opening position, the first windward surface and the second windward surface coincide to enable the wind turbine blade to be used for solar power generation.

[0016] In some embodiments, a brush is provided on one side surface of the fan blade adjacent to the cylinder, and the brush can clean the adjacent fan blade during the process of the fan blade switching between the open position and the closed position. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a wind-solar coupled power generation device according to an embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the wind-solar coupled power generation device in the second open position according to an embodiment of the present invention;

[0019] Figure 3 This is another schematic diagram of the wind-solar coupled power generation device in the second open position according to an embodiment of the present invention;

[0020] Figure 4 This is another schematic diagram of the wind-solar coupled power generation device in the second open position according to an embodiment of the present invention;

[0021] Figure 5 This is a schematic diagram of the wind turbine blades of the wind-solar coupled power generation device according to an embodiment of the present invention in the closed position;

[0022] Figure 6 This is another schematic diagram of the wind turbine blades of the wind-solar coupled power generation device according to an embodiment of the present invention in the closed position;

[0023] Figure 7 This is another schematic diagram of the wind turbine blades of the wind-solar coupled power generation device in the closed position according to an embodiment of the present invention.

[0024] Figure label:

[0025] 1. Base; 2. Cylinder; 3. Nacelle; 4. Wind turbine blades; 41. First blade segment; 411. First windward surface; 42. Second blade segment; 421. Universal rotating head; 5.

[0026] Input axis 6. Detailed Implementation

[0027] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0028] The wind-solar coupled power generation device of the present invention is described below with reference to the accompanying drawings.

[0029] like Figures 1-7 As shown, the wind-solar coupled power generation device of this embodiment includes a base 1, a cylinder 2, a nacelle 3, a power generation component (not shown) and multiple wind turbine blades 4. The base 1 is used to support the cylinder 2. A part of the base 1 is buried underground, or the entire base 1 is buried underground, so as to ensure the structural stability of the wind-solar coupled power generation device.

[0030] The cylinder 2 is the main part of the entire wind-solar coupled power generation device. It is mainly used to provide sufficient height for installing the power generation components and wind turbine blades 4. The height of the cylinder 2 can generally range from tens of meters to hundreds of meters.

[0031] The nacelle 3 is rotatably mounted on the upper end of the cylinder 2 along the circumference of the cylinder 2. The power generation component is located inside the nacelle 3. Thin-film solar panels are provided on the outer surface of the wind turbine blades 4 and / or the outer circumferential surface of the cylinder 2. Both the wind turbine blades 4 and the solar panels are connected to the power generation component.

[0032] It is understood that the wind-solar coupled power generation device of this embodiment of the invention has two power generation systems, namely wind power generation and solar power generation. Wind power generation converts wind energy into kinetic energy through wind turbine blades 4, and then converts kinetic energy into electrical energy. Solar power generation converts solar energy into electrical energy through thin-film solar panels installed on the outer surface of wind turbine blades 4 and / or the outer circumferential surface of cylinder 2. The two power generation systems can work independently or simultaneously. For example, in seasons with strong winds and sufficient sunshine, wind and solar power generation can be used simultaneously. In seasons with weak winds but sufficient sunshine, compared with traditional wind power generation or solar power generation, the wind-solar coupled power generation device of this embodiment of the invention has higher power generation efficiency, better stability, and wider applicability.

[0033] In addition, the nacelle 3 can drive the wind turbine blades 4 to rotate in the direction of the wind or the direction of the sun. When the wind is strong but the sunlight is weak, the nacelle 3 can drive the wind turbine blades 4 to rotate in the direction of the wind. When the wind is weak but the sunlight is strong, the nacelle 3 can drive the wind turbine blades 4 to rotate in the direction of the sun. This configuration can maximize the power generation efficiency of the wind-solar coupled power generation device.

[0034] The wind-solar coupled power generation device of this invention can generate electricity by utilizing both wind and solar energy simultaneously, and can be adjusted according to different wind directions and sun positions. It not only has a wide range of applications and good stability, but also has higher power generation efficiency.

[0035] In some embodiments, the wind-solar coupled power generation device further includes a controller (not shown), which is used to adjust the power generation mode of the wind-solar coupled power generation device and control the movement of the nacelle 3 and the wind turbine blades 4. It should be noted that the controller can adjust the power generation mode adopted by the wind-solar coupled power generation device according to the user's instructions or automatically according to different wind speeds or lighting conditions, and can also control the nacelle 3 to rotate to an appropriate position.

[0036] Specifically, the power generation assembly includes a first power generation assembly for wind power generation and a second power generation assembly for solar power generation. The first power generation assembly is connected to the wind turbine blades 4, and the second power generation assembly is connected to the solar panel. The first power generation assembly is used for wind power generation, and the second power generation assembly is used for solar power generation. It should be noted that both wind power generation and solar power generation are mature existing technologies; therefore, their specific components will not be described in detail, but only the technical features that contribute to solving the technical problems will be described.

[0037] With this setup, the two power generation components can work independently without affecting each other. For example, if the wind turbine blade 4 experiences a mechanical failure that prevents the first power generation component from generating electricity, the second power generation component can still generate electricity normally.

[0038] like Figure 1As shown, in some embodiments, the first power generation component includes a generator and a universal rotating head 5 connected to the input shaft 6 of the generator. The wind turbine blades 4 are connected to the universal rotating head 5. On the one hand, the wind turbine blades 4 can drive the input shaft 6 of the generator to rotate to generate electricity. On the other hand, the universal rotating head 5 can drive the wind turbine blades 4 to rotate to adjust the pitch angle and sway angle of the wind turbine blades 4.

[0039] Therefore, the orientation of the wind turbine blades 4 can be adjusted by rotating the nacelle 3 and rotating the rotating head, so that they can face the direction of the wind or the direction of the sun at the most appropriate angle. The traditional blade arrangement is that the rotating surface of the blade is perpendicular to the horizontal plane. The wind turbine blades 4 of the wind-solar coupling power generation device of this embodiment of the invention breaks through the traditional blade arrangement, which is more flexible and can adjust the angle of the wind turbine blades 4 arbitrarily to always ensure that the wind turbine is at a 90-degree angle to the wind direction, or to ensure that the wind turbine blades 4 always face the sun.

[0040] Furthermore, the wind-solar coupled power generation device of this embodiment also includes a solar tracking and positioning component (not shown). The solar tracking and positioning component is used to determine the position of the sun. The controller can control the nacelle 3 and the universal rotating head 5 to rotate according to the position signal provided by the solar tracking and positioning component, so as to ensure that the wind turbine blades 4 can accurately face the sun.

[0041] It should be noted that the solar tracking positioning system is a mature existing technology, such as a fixed solar tracker (SOLYS Gear Drive). This tracker is a solar tracker that can be deployed in all weather and all directions. The solar tracking positioning component in the embodiments of the present invention can be selected from this tracker or other solar trackers.

[0042] like Figures 5-7 As shown, in some embodiments, the wind turbine blades 4 are switchable between an open position and a closed position. In the open position, the wind turbine blades 4 can be used for wind power generation and / or solar power generation. In the closed position, multiple wind turbine blades 4 are stacked.

[0043] The open position of fan blade 4 is the normal operating position, such as... Figure 1 As shown, the three blades are arranged circumferentially along the input shaft 6 of the motor. The closed position of the wind turbine blade 4 is a protective position, which can reduce the area of ​​the wind-facing surface of the wind turbine blade 4. With this arrangement, when there is a storm or other severe weather, the wind turbine blade 4 is switched to the closed position. When the wind turbine blade 4 is in the closed position, the universal rotating head 5 can also drive the stacked wind turbine blade 4 to rotate, making it parallel to the wind direction. This can minimize the damage to the wind turbine blade 4 due to excessive wind speed, ensure the normal operation of the wind-solar coupled power generation device, and improve the reliability of the device.

[0044] Furthermore, the wind-solar coupled power generation device also includes a wind speed sensor (not shown). The wind speed sensor is used to detect wind speed and can be a mechanical wind speed sensor or an ultrasonic wind speed sensor. The wind speed sensor is located above the cylinder 2 or the power generation component. The wind speed sensor transmits the detected wind speed to the controller. The controller controls the wind turbine blades 4 to switch between open and closed positions according to the signal provided by the wind speed sensor. When the wind speed is less than a preset value, the wind turbine blades 4 are open. When the wind speed exceeds the preset value, the wind turbine blades 4 are closed. Thus, the wind turbine blades 4 are protected from the influence of strong winds to the greatest extent.

[0045] In some embodiments, such as Figure 2 and Figure 3 As shown, the wind turbine blade 4 includes a first blade segment 41 and a second blade segment 42. One end of the first blade segment 41 is rotatably connected to the universal rotating head 5, and one end of the second blade segment 42 is rotatably connected to the other end of the first blade segment 41.

[0046] The first leaf segment 41 can rotate circumferentially along the universal rotating head 5 to drive the second leaf segment 42 to switch between the open and closed positions. The second leaf segment 42 can rotate around the central axis of the first leaf segment 41 to adjust the angle between the first leaf segment 41 and the second leaf segment 42.

[0047] It should be noted that when the wind-solar coupled power generation device generates wind power, the second blade segments 42 of multiple wind turbine blades 4 cannot be parallel to each other, otherwise the wind turbine blades 4 cannot rotate normally and the first power generation component cannot generate electricity. However, when the wind-solar coupled power generation device only generates solar power, the second blade segments 42 of multiple wind turbine blades 4 can be made parallel to each other to increase the light-receiving area of ​​the wind turbine blades 4.

[0048] Specifically, the open positions of the wind turbine blade 4 include a first open position and a second open position. The first blade segment 41 has a first windward surface 411, and the second blade segment 42 has a second windward surface 421. In the first open position, the extended surfaces of the first windward surface 411 intersect, and the wind-solar coupling power generation device can be used for both wind power generation and solar power generation at the same time. In the second open position, the first windward surface 411 and the second windward surface 421 coincide, and the wind-solar coupling power generation device can only be used for solar power generation at this time.

[0049] During the use of wind-solar coupled power generation devices, it is inevitable that they will be contaminated with pollutants such as dust, snow, or bird droppings. Excessive accumulation of these pollutants can affect the normal operation of the wind turbine blades and easily lead to mechanical failures.

[0050] To solve the above problems, a brush (not shown) is provided on the side surface of the fan blade 4 adjacent to the cylinder 2, that is, the back surface of the fan blade 4, in this embodiment of the invention. During the process of switching between the open position and the closed position of the fan blade 4, the brush on the back surface of the fan blade 4 can clean the contaminants on the front surface of the adjacent fan blade 4, thereby ensuring the cleanliness of the fan blade 4 and reducing the probability of failure.

[0051] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to 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.

[0052] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0053] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0054] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0055] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0056] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A wind-solar coupled power generation device, characterized in that, include: Base; A cylindrical body, the lower end of which is connected to the base; A cabin, which is rotatably disposed at the upper end of the cylinder along the circumference of the cylinder; A power generation assembly, which is located within the engine compartment; Multiple wind turbine blades, with thin-film solar panels provided on the outer surface of the wind turbine blades and / or the outer circumferential surface of the cylinder. Both the wind turbine blades and the solar panels are connected to the power generation components. The nacelle can drive the wind turbine blades to rotate in the direction of the wind or the direction of the sun. The controller is used to adjust the power generation mode of the wind-solar coupled power generation device and control the movement of the nacelle and the wind turbine blades; The power generation components include a first power generation component for wind power generation and a second power generation component for solar power generation. The first power generation component is connected to the wind turbine blades, and the second power generation component is connected to the solar panel. The first power generation component includes a generator and a universal rotating head connected to the input shaft of the generator, and the wind turbine blades are connected to the universal rotating head; It also includes a solar tracking and positioning component, which is used to determine the position of the sun, and the controller controls the rotation of the cabin and the universal rotating head according to the signal provided by the solar tracking and positioning component. The fan blades are switchable between an open position and a closed position. The fan blades include a first blade segment and a second blade segment. One end of the first blade segment is rotatably connected to a universal rotating head, and one end of the second blade segment is rotatably connected to the other end of the first blade segment. The opening position includes a first opening position and a second opening position. The first blade segment has a first windward surface, and the second blade segment has a second windward surface. In the first opening position, the extension surfaces of the first windward surfaces intersect to allow the wind turbine blades to be used for wind power generation. In the second opening position, the first windward surface and the second windward surface coincide to allow the wind turbine blades to be used for solar power generation.

2. The wind-solar coupled power generation device according to claim 1, characterized in that, In the open position, the wind turbine blades can be used for wind power generation and / or solar power generation; in the closed position, a plurality of the wind turbine blades are stacked.

3. The wind-solar coupled power generation device according to claim 2, characterized in that, It also includes a wind speed sensor, which is located above the cylinder or the power generation assembly. The controller controls the wind turbine blades to switch between the open position and the closed position based on the signal provided by the wind speed sensor.

4. The wind-solar coupled power generation device according to claim 2, characterized in that, A brush is provided on the side surface of the fan blade adjacent to the cylinder. During the process of switching between the open position and the closed position, the brush can clean the adjacent fan blade.

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