Solar power plant

Abstract

The application discloses a solar power generation device and relates to the technical field of solar power generation. The device comprises a support frame, a solar panel assembly, a first driving element and a control element. The solar panel assembly is rotationally connected with the support frame. The solar panel assembly comprises a first solar panel and a second solar panel which are connected with each other. A first included angle between the first solar panel and the second solar panel is less than 180 degrees. A first current detection element is arranged on the first solar panel. A second current detection element is arranged on the second solar panel. The control element can control the first driving element to drive the solar panel assembly to rotate relative to the support frame around a first axis according to the ratio of a first current value detected by the first current detection element to a second current value detected by the second current detection element, so that the included angle between the first angle bisector between the first solar panel and the second solar panel and an incident light line is less than a first preset value. The device can solve the problem that the current solar power generation device occupies a large space.

Description

Technical Field

[0001] This application belongs to the field of solar power generation technology, specifically relating to a solar power generation device. Background Technology

[0002] Solar energy, as a sustainable green and renewable energy source, has enormous potential for development and application. The power generation of a solar panel is related to the angle of sunlight incidence; power generation is maximized when the sunlight is perpendicular to the panel, and changing the angle significantly reduces power generation. Therefore, light tracking technology is an effective way to improve solar energy utilization and reduce the cost of photovoltaic power generation.

[0003] Current light tracking technology mainly involves placing additional light sensors outside the projection range of the solar panel. The light source is tracked by combining the data from the light sensors with the installation angle of the solar panel. This method requires additional space to install the light sensors, resulting in a large footprint for solar power generation equipment. Utility Model Content

[0004] The purpose of this application is to provide a solar power generation device that can solve the problem of the large space occupied by current solar power generation devices.

[0005] To solve the above-mentioned technical problems, this application is implemented as follows:

[0006] This application provides a solar power generation device, including a support frame, a solar panel assembly, a first driving component, and a control component. The solar panel assembly is rotatably connected to the support frame, and the first driving component is connected to both the solar panel assembly and the support frame.

[0007] The solar panel assembly includes a first solar panel and a second solar panel connected together. The first solar panel and the second solar panel form a first angle of less than 180°. The first solar panel is provided with a first current detection device, and the second solar panel is provided with a second current detection device. The control device is electrically connected to the first current detection device, the second current detection device, and the first drive device. The control device can control the first drive device to drive the solar panel assembly to rotate about a first axis relative to the support frame based on the ratio of the first current value detected by the first current detection device to the second current value detected by the second current detection device, so that the angle formed between the first angle bisector between the first solar panel and the second solar panel and the incident light irradiating the solar panel assembly is less than a first preset value.

[0008] In this embodiment, a first current detector detects the first current value collected by the first solar panel, and a second current detector detects the second current value collected by the second solar panel. A control unit determines the direction of the light source based on the ratio of the first and second current values, and controls a first drive unit to rotate the solar panel assembly relative to the support frame around a first axis to track the light source. This ensures that the angle between the first angle bisector between the first and second solar panels and the incident light illuminating the solar panel assembly is less than a first preset value, thereby improving the utilization rate of solar energy and increasing the current collection efficiency of the solar panel assembly. This avoids the need to use a light sensor to track the light source, thus reducing the space occupied by the solar power generation equipment. Therefore, this embodiment can solve the problem of the large space occupation of current solar power generation equipment. Attached Figure Description

[0009] Figure 1 This is an exploded view of the solar power generation device disclosed in the embodiments of this application;

[0010] Figure 2 This is a schematic diagram of the structure of the solar power generation device disclosed in the embodiments of this application;

[0011] Figure 3 This is a cross-sectional view of the solar power generation device disclosed in the embodiments of this application;

[0012] Figure 4 This is a schematic diagram illustrating the working principle of the first solar panel disclosed in the embodiments of this application;

[0013] Figure 5 This is a schematic diagram illustrating the working principle of the first and second solar panels disclosed in the embodiments of this application;

[0014] Figure 6 This is a schematic diagram of the rotation of the solar panel assembly disclosed in the embodiments of this application, wherein the solid arrow lines indicate the rotation directions of the first and second solar panels, and the dashed arrow lines indicate the rotation directions of the second and third solar panels.

[0015] Explanation of reference numerals in the attached figures:

[0016] 100-Support frame, 110-First connecting frame, 120-Base, 121-Upper shell of base, 122-Lower shell of base, 130-Connecting frame, 140-Protective structure;

[0017] 200 - Solar panel assembly, 210 - First solar panel, 220 - Second solar panel, 230 - Third solar panel, 240 - Fourth solar panel, 250 - First angle bisector, 260 - Second angle bisector;

[0018] 300 - First drive component;

[0019] 400 - Second drive unit;

[0020] 500-Heat dissipation bracket, 510-Heat dissipation fins, 520-Support plate, 530-Connecting part;

[0021] 600 - Circuit Board;

[0022] 700-battery. Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0025] The solar power generation equipment provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.

[0026] like Figures 1 to 6 As shown in the illustration, this application discloses a solar power generation device, which includes a support frame 100, a solar panel assembly 200, a first driving member 300, and a control member. The solar panel assembly 200 is rotatably connected to the support frame 100, and the first driving member 300 is connected to both the solar panel assembly 200 and the support frame 100. Optionally, the main body of the first driving member 300 is connected to the solar panel assembly 200, and the output shaft of the first driving member 300 is connected to the support frame 100. The first driving member 300 can drive the solar panel assembly 200 to rotate relative to the support frame 100. Optionally, the solar power generation device also includes a circuit board 600, and the control member is disposed on the circuit board 600 and electrically connected to the circuit board 600.

[0027] The solar panel assembly 200 includes a first solar panel 210 and a second solar panel 220 connected together. The first solar panel 210 and the second solar panel 220 form a first angle of less than 180°. The first solar panel 210 is provided with a first current detection device, which is electrically connected to the first solar panel 210 and is used to detect a first current value of the first solar panel 210. The second solar panel 220 is provided with a second current detection device, which is electrically connected to the second solar panel 220 and is used to detect a second current value of the second solar panel 220. The control unit is electrically connected to the first current detection unit, the second current detection unit, and the first drive unit 300. The control unit can control the first drive unit 300 to drive the solar panel assembly 200 to rotate around the first axis relative to the support frame 100 according to the ratio of the first current value detected by the first current detection unit to the second current value detected by the second current detection unit, so that the angle formed between the first angle bisector 250 between the first solar panel 210 and the second solar panel 220 and the incident light irradiating the solar panel assembly 200 is less than a first preset value.

[0028] At the same temperature, under the scenario of uniform parallel light incidence (i.e., uniform light intensity per unit area), the power generation of the solar panel module 200 is proportional to the size of its projected area on the plane perpendicular to the incident light. Therefore, when the solar power generation equipment disclosed in this application is installed outdoors for operation, during the process of the solar panel module 200 rotating relative to the support frame 100 around the first axis, the solar panel module 200 rotates from east to west from the Earth, so that the solar panel module 200 always tracks the sunlight during the day, thereby increasing the area of ​​the effective incident surface of the solar panel module 200 (i.e., the plane perpendicular to the incident light), and thus increasing the power generation of the solar power generation equipment.

[0029] Optionally, the power generation of the first solar panel 210 and the second solar panel 220 is maximized when the angle between the first angle bisector 250 between the first solar panel 210 and the second solar panel 220 and the incident light is 0.

[0030] In this embodiment, a first current detector detects the first current value collected by the first solar panel 210, and a second current detector detects the second current value collected by the second solar panel 220. A control unit determines the direction of the light source based on the ratio of the first current value to the second current value, and controls the first drive unit 300 to drive the solar panel assembly 200 to rotate relative to the support frame 100 around a first axis to track the light source. This ensures that the angle formed between the first angle bisector 250 between the first solar panel 210 and the second solar panel 220 and the incident light illuminating the solar panel assembly 200 is less than a first preset value, thereby improving the utilization rate of solar energy and increasing the current collection efficiency of the solar panel assembly 200. This avoids the need to use a light sensor to track the light source, thus reducing the space occupied by the solar power generation equipment. Therefore, this embodiment can solve the problem of the large space occupation of current solar power generation equipment.

[0031] In one optional embodiment, the solar power generation device further includes a second drive member 400, which is connected to the solar panel assembly 200 and the support frame 100. Optionally, the main body of the second drive member 400 can be disposed on the support frame 100, and the output shaft of the second drive member 400 is connected to the solar panel assembly 200. The second drive member 400 can drive the solar panel assembly 200 to rotate relative to the support frame 100. The solar panel assembly 200 also includes a third solar panel 230 connected to the second solar panel 220. The third solar panel 230 forms a second included angle of less than 180° with the second solar panel 220. The first solar panel 210, the second solar panel 220, and the third solar panel 230 are arranged sequentially along the circumference of the central axis of the solar panel assembly 200. A third current detection element is provided on the third solar panel 230. Both the third current detection element and the second drive member 400 are electrically connected to a control element. The control element can adjust the second current value based on the third current value detected by the third current detection element. The ratio controls the second driving member 400 to drive the solar panel assembly 200 to rotate relative to the support frame 100 around the second axis, so that the angle formed between the second angle bisector 260 between the second solar panel 220 and the third solar panel 230 and the incident light is less than the second preset value. The second axis intersects the first axis. At this time, the angle formed between the central axis of the solar panel assembly 200 and the incident light is less than the first preset value in the first direction (the extension direction of the angle bisector of the first angle) and less than the second preset value in the second direction (the extension direction of the angle bisector of the second angle).

[0032] Throughout the year, the angle of solar radiation varies due to the sun's rotation. For example, the solar altitude angle is higher in summer, approaching direct sunlight, while it is lower in winter, resulting in oblique sunlight. This significantly reduces the amount of solar radiation received per unit area. Therefore, by setting a second driving component 400, the solar panel assembly 200 is driven to rotate relative to the support frame 100 around a second axis. This ensures that the angle between the second angle bisector 260 between the second solar panel 220 and the third solar panel 230 and the incident light is less than a second preset value. During this rotation, the solar panel assembly 200 rotates from south to north or from north to south, allowing it to track sunlight throughout the year. This further increases the effective incident surface area (i.e., the vertical plane of incident light) of the solar panel assembly 200, thereby further increasing the power generation of the solar power generation equipment. Furthermore, by driving the solar panel assembly 200 in two different directions via the first driving component 300 and the second driving component 400, the installation angle of the solar panel assembly 200 relative to the light source (sun) is eliminated during the installation of the solar power generation equipment. Adjustment can be made via the first driving component 300 and the second driving component 400 after installation, thus reducing the installation difficulty and improving efficiency. Alternatively, the second driving component 400 can be omitted, and the installation angle of the solar panel assembly 200 relative to the light source (sun) can be manually adjusted throughout the year to track the light source.

[0033] Optionally, the power generation of the second solar panel 220 and the third solar panel 230 is maximized when the angle between the second angle bisector 260 between the second solar panel 220 and the third solar panel 230 and the incident light is 0. In other words, when the angle between the first angle bisector 250 between the first solar panel 210 and the second solar panel 220 and the incident light is 0, and the angle between the second angle bisector 260 between the second solar panel 220 and the third solar panel 230 and the incident light is 0, the central axis of the solar panel assembly 200 is parallel to the incident light, that is, the central axis of the solar panel assembly 200 points towards the light source.

[0034] Optionally, at least one of the first driving member 300 and the second driving member 400 can be a motor, or other types of driving members. This application embodiment does not impose specific limitations on this.

[0035] Optionally, during each tracking of the light source by the solar panel assembly 200, the first driving member 300 and the second driving member 400 rotate gradually at a fixed angle each step, and the direction of rotation (i.e., forward rotation or reverse rotation) needs to be determined before each rotation, until the angle (i.e., the angle between the first angle bisector 250 and the incident light and the angle between the second angle bisector 260 and the incident light) is within the error range and then stops.

[0036] In an optional embodiment, both the first preset value and the second preset value are less than or equal to 5°. When the solar panel assembly 200 rotates relative to the support frame 100 around the first axis, the solar panel assembly 200 can rotate in the forward direction or in the reverse direction around the first axis. Therefore, the angle between the first angle bisector 250 and the incident light can be greater than -5° and less than +5°, that is, the directional deviation between the light source and the solar panel assembly 200 is allowed to be ±5°. Once this range is exceeded, the first driving member 300 needs to drive the solar panel assembly 200 to rotate relative to the support frame 100 around the first axis. Similarly, when the solar panel assembly 200 rotates relative to the support frame 100 around the second axis, the solar panel assembly 200 can rotate in the forward direction or in the reverse direction around the second axis. Therefore, the angle between the second angle bisector 260 and the incident light can be greater than -5° and less than +5°, that is, the directional deviation between the light source and the solar panel assembly 200 is allowed to be ±5°. Once this range is exceeded, the second driving member 400 needs to drive the solar panel assembly 200 to rotate relative to the support frame 100 around the second axis. This solution sets a certain deviation range between the direction of the light source and the solar panel assembly 200. This not only avoids frequent operation of the first drive unit 300 and the second drive unit 400, thus saving the power generation of the solar power generation equipment, but also reduces the difficulty of the controller in controlling the first drive unit 300 and the second drive unit 400. Of course, at least one of the aforementioned first preset value and second preset value can also be greater than 5°.

[0037] Optionally, the first included angle and the second included angle may not be equal; or, in other optional embodiments, the first included angle is equal to the second included angle, which makes it convenient for the first solar panel 210, the second solar panel 220 and the third solar panel 230 to be arranged sequentially along the circumference of the central axis of the solar panel assembly 200.

[0038] In another optional embodiment, the first solar panel 210 and the second solar panel 220 are symmetrically arranged about the first angle bisector 250, and the second solar panel 220 and the third solar panel 230 are symmetrically arranged about the second angle bisector 260. In this case, the dimensions of the first solar panel 210, the second solar panel 220, and the third solar panel 230 are all equal, which facilitates mass production of the solar panels. Furthermore, since the dimensions of the first solar panel 210 and the second solar panel 220 are equal, this helps to improve the accuracy of the ratio of the first current value to the second current value. Similarly, since the dimensions of the second solar panel 220 and the third solar panel 230 are equal, this helps to improve the accuracy of the ratio of the second current value to the third current value. Of course, the dimensions of the first solar panel 210, the second solar panel 220, and the third solar panel 230 can also be unequal.

[0039] Optionally, when the first solar panel 210 and the second solar panel 220 are symmetrically arranged about the first angle bisector 250, and the angle between the first angle bisector 250 and the incident light is 0, the power generation of the first solar panel 210 is equal to that of the second solar panel 220; when the second solar panel 220 and the third solar panel 230 are symmetrically arranged about the second angle bisector 260, and the angle between the second angle bisector 260 and the incident light is 0, the power generation of the third solar panel 230 is equal to that of the second solar panel 220.

[0040] In another optional embodiment, the first included angle is greater than 60°, that is, the first included angle is greater than 60° and less than 180°. In this case, the effective light-receiving area of ​​the first solar panel 210 and the second solar panel 220 is larger, which is beneficial to improving the current collection efficiency of the solar panel module 200, thereby increasing the power generation of the solar power generation equipment. Of course, the first included angle can also be less than 60°.

[0041] Optionally, in an embodiment where the solar power generation device also includes a second drive unit 400, which is connected to the solar panel assembly 200 and the support frame 100, the second included angle can also be greater than 60°, that is, the second included angle is greater than 60° and less than 180°. In this case, the effective illumination area of ​​the second solar panel 220 and the third solar panel 230 is larger, which is beneficial to further improve the current collection efficiency of the solar panel assembly 200, thereby further increasing the power generation of the solar power generation device.

[0042] In another optional embodiment, the solar power generation device further includes a heat dissipation bracket 500 rotatably connected to the support frame 100. The solar panel assembly 200 is disposed on the side of the heat dissipation bracket 500 facing away from the support frame 100, so that the solar panel assembly 200 is rotatably connected to the support frame 100 via the heat dissipation bracket 500. A first driving member 300 is connected to the solar panel assembly 200 via the heat dissipation bracket 500, and the first driving member 300 drives the solar panel assembly 200 to rotate relative to the support frame 100 around a first axis via the heat dissipation bracket 500. The heat dissipation bracket 500 is used to dissipate heat from the solar panel assembly 200, avoiding excessive temperature differences between the solar panels, which could affect the photoelectric conversion efficiency and thus the accuracy of the current ratio. Of course, the heat dissipation bracket 500 may not be provided.

[0043] Optionally, the heat dissipation bracket 500 has a connecting portion 530 on the side facing away from the solar panel assembly 200. The first driving member 300 is disposed in the receiving cavity of the connecting portion 530. The support frame 100 includes a first connecting frame 110, which is rotatably connected to the connecting portion 530. The circuit board 600 is disposed in the receiving cavity of the first connecting frame 110, which is connected to the receiving cavity of the connecting portion 530. The circuit board 600 is located below the first driving member 300. The main body of the first driving member 300 is connected to the connecting portion 530. The output shaft of the first driving member 300 is connected to the first connecting frame 110. The main body of the first driving member 300 rotates around the first axis together with the heat dissipation bracket 500 and the solar panel assembly 200.

[0044] Optionally, the support frame 100 further includes a base 120 and a second connecting frame 130 rotatably connected. The second connecting frame 130 is rotatably connected to the first connecting frame 110. The second driving member 400 is disposed in the receiving cavity of the second connecting frame 130. The main body of the second driving member 400 is connected to the second connecting frame 130. The output shaft of the second driving member 400 is connected to the base 120. The main body of the second driving member 400, the first connecting frame 110, and the second connecting frame 130 rotate together relative to the base 120 about a second axis.

[0045] Optionally, the support frame 100 further includes a protective structure 140, which is detachably disposed at the opening of the receiving cavity of the connecting frame 130 and is located below the second driving member 400 to protect the second driving member 400.

[0046] Alternatively, the base 120 includes a detachably connected upper base shell 121 and a lower base shell 122, which together form an accommodating space. The solar power generation device also includes a battery 700, which is disposed within the accommodating space and electrically connected to a circuit board 600. The circuit board 600 is used to output the current generated by multiple solar panels to the battery 700 or the power-consuming device.

[0047] In an optional embodiment, the heat dissipation bracket 500 has a plurality of spaced heat dissipation fins 510 on the side facing away from the solar panel assembly 200 to increase the heat dissipation area and thereby improve the heat dissipation efficiency of the heat dissipation bracket 500. Optionally, the heat dissipation fins 510 can be arranged arbitrarily, or the heat dissipation fins 510 can be arranged in an array, which is beneficial to improve the heat dissipation uniformity of each area of ​​the heat dissipation bracket 500.

[0048] In another optional embodiment, the heat sink 500 is a metal structure. Since metal structures have high thermal conductivity, good mechanical strength, and good processing performance, this not only improves the heat dissipation performance of the heat sink 500 but also provides better support stability. Of course, the heat sink 500 can also be made of materials such as ceramics or thermally conductive graphite.

[0049] In another optional embodiment, the heat dissipation bracket 500 includes a support plate 520. The support plate 520 has a first support surface and a second support surface connected together. The first solar panel 210 is attached to the first support surface, and in the direction perpendicular to the first support surface, the orthographic projection of the first solar panel 210 coincides with the orthographic projection of the first support surface. The second solar panel 220 is attached to the second support surface, and in the direction perpendicular to the second support surface, the orthographic projection of the second solar panel 220 coincides with the orthographic projection of the second support surface. In this scheme, the first solar panel 210 is attached to the first support surface, and the second solar panel 220 is attached to the second support surface, which can improve the stability of each solar panel. Furthermore, the orthographic projection of the first solar panel 210 coincides with the orthographic projection of the first support surface in the direction perpendicular to the first support surface, and the orthographic projection of the second solar panel 220 coincides with the orthographic projection of the second support surface in the direction perpendicular to the second support surface, which can increase the heat dissipation area of ​​each solar panel, thereby improving the heat dissipation efficiency of each solar panel. Of course, in the direction perpendicular to the first support surface, the orthographic projection of the first solar panel 210 can also be greater than or coincide with the orthographic projection of the first support surface, and in the direction perpendicular to the second support surface, the orthographic projection of the second solar panel 220 can also be greater than or coincide with the orthographic projection of the second support surface.

[0050] Optionally, at least one of the first current detection device, the second current detection device, and the third current detection device can detect the current by means of resistance sampling method, Hall sampling method, or using a high-precision integrated IC with amplifier, etc., and the embodiments of this application do not impose specific limitations on this.

[0051] Based on the solar power generation equipment disclosed in the embodiments of this application, taking a solar panel assembly 200 comprising four solar panels as an example, the four solar panels are sequentially numbered as first solar panel 210, second solar panel 220, third solar panel 230, and fourth solar panel 240. Adjacent solar panels form an angle of 160° with each other and are symmetrically arranged in pairs. The solar panel assembly 200 is centrally symmetrically arranged, with the first solar panel 210 and second solar panel 220 adjacent to each other, and the second solar panel 220 and third solar panel 230 adjacent to each other. The circuit board 600 samples the current values ​​of the first solar panel 210, second solar panel 220, and third solar panel 230 using a first current detection device, a second current detection device, and a third current detection device. The rotating surface of the first driving member 300 is the second angle bisector 260 of the second solar panel 220 and the third solar panel 230. When the first driving member 300 is rotated, the current ratio of the first solar panel 210 and the second solar panel 220 can be adjusted. The rotating surface of the second driving member 400 is the first angle bisector 250 of the first solar panel 210 and the second solar panel 220. When the second driving member 400 is rotated, the current ratio of the first solar panel 210 and the second solar panel 220 can be adjusted.

[0052] In practical applications, the minimum single rotation angle of the first driving component 300 and the second driving component 400 is 5°, the allowable direction deviation of the light source is ±5°, and the allowable deviation of the current for accurate direction determination is cos5° / cos15°>I1 / I2>cos15° / cos5° (taking the first solar panel 210 and the second solar panel 220 as examples, cos5° and cos15° are both the ratio between the actual incident surface area of ​​the first solar panel 210 or the second solar panel 220 and the effective incident surface area). The light source tracking interval (timing interval) can be set to 10min, 20min, etc.

[0053] The specific control methods for the aforementioned solar power generation equipment are as follows:

[0054] S100: When the total current is not 0, exit standby mode and enter tracking mode.

[0055] S200: Upon reaching each timing interval, the tracking mode is entered. Taking the first solar panel 210 and the second solar panel 220 and their corresponding first driving unit 300 as an example, this specifically includes:

[0056] S210. Obtain the current values ​​I1 and I2, and calculate the ratio of I1 to I2 (i.e., I1 / I2).

[0057] S220. Determine whether cos5° / cos15°>I1 / I2>cos15° / cos5° is true. When cos5° / cos15°>I1 / I2>cos15° / cos5°, the solar panel module 200 remains stationary.

[0058] S230. When cos5° / cos15°≥I1 / I2, drive the solar panel assembly 200 to rotate toward the side where the first solar panel 210 is located.

[0059] S240. When I1 / I2≥cos5° / cos15°, drive the solar panel assembly 200 to rotate toward the side where the second solar panel 220 is located.

[0060] It should be noted that the tracking logic judgment and rotation of the second solar panel 220 and the third solar panel 230 and their corresponding second driving component 400 are the same as those described above, and will not be repeated here.

[0061] S300, Perform one round of tracking as described above on the rotating surfaces of the first driving member 300 and the second driving member 400. After completion, enter the timing interval and wait for the next tracking.

[0062] S400. If the total current is 0 during the tracking mode, the system will rotate omnidirectionally once according to the preset trajectory. If the current is not 0 in a certain direction, the tracking logic judgment and rotation in step S200 will be performed in that direction. If the current in all directions is 0, the system will enter the preset position, exit the interval tracking mode, and enter the standby mode.

[0063] It should be noted that the preset position of the solar panel module 200 can be manually set by the user according to the installation location.

[0064] S500: Exit standby mode and restart tracking mode when the total current becomes non-zero.

[0065] It should be noted that the "current is 0" state described above can also be replaced by "current is less than a certain value" to avoid errors in detection accuracy.

[0066] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A solar power generation device, characterized in that, It includes a support frame (100), a solar panel assembly (200), a first drive unit (300), and a control unit. The solar panel assembly (200) is rotatably connected to the support frame (100), and the first drive unit (300) is connected to both the solar panel assembly (200) and the support frame (100). The solar panel assembly (200) includes a first solar panel (210) and a second solar panel (220) connected together. The first solar panel (210) and the second solar panel (220) form a first angle of less than 180°. The first solar panel (210) is provided with a first current detection device, and the second solar panel (220) is provided with a second current detection device. The control device is electrically connected to the first current detection device, the second current detection device and the first drive device (300). The control device can control the first drive device (300) to drive the solar panel assembly (200) to rotate about a first axis relative to the support frame (100) according to the ratio of the first current value detected by the first current detection device to the second current value detected by the second current detection device, so that the angle formed between the first angle bisector (250) between the first solar panel (210) and the second solar panel (220) and the incident light irradiating the solar panel assembly (200) is less than a first preset value.

2. The solar power generation equipment according to claim 1, characterized in that, The solar power generation equipment also includes a second drive unit (400), which is connected to the solar panel assembly (200) and the support frame (100). The solar panel assembly (200) further includes a third solar panel (230) connected to the second solar panel (220). The third solar panel (230) and the second solar panel (220) form a second angle of less than 180°. The first solar panel (210), the second solar panel (220), and the third solar panel (230) are arranged sequentially along the circumference of the central axis of the solar panel assembly (200). The third solar panel (230) is provided with a third current detection element. The third current detection element and the second driving element (400) are both electrically connected to the control element. The control element can control the second driving element (400) to drive the solar panel assembly (200) to rotate around the second axis relative to the support frame (100) according to the ratio of the second current value to the third current value detected by the third current detection element, so that the angle formed between the second angle bisector (260) between the second solar panel (220) and the third solar panel (230) and the incident light is less than a second preset value. The second axis intersects with the first axis.

3. The solar power generation equipment according to claim 2, characterized in that, Both the first preset value and the second preset value are less than or equal to 5°.

4. The solar power generation equipment according to claim 2, characterized in that, The first included angle is equal to the second included angle.

5. The solar power generation equipment according to claim 2, characterized in that, The first solar panel (210) and the second solar panel (220) are symmetrically arranged about the first angle bisector (250), and the second solar panel (220) and the third solar panel (230) are symmetrically arranged about the second angle bisector (260).

6. The solar power generation equipment according to claim 1, characterized in that, The first included angle is greater than 60°.

7. The solar power generation equipment according to claim 1, characterized in that, The solar power generation equipment further includes a heat dissipation bracket (500) rotatably connected to the support frame (100). The solar panel assembly (200) is disposed on the side of the heat dissipation bracket (500) facing away from the support frame (100), so that the solar panel assembly (200) is rotatably connected to the support frame (100) through the heat dissipation bracket (500). The first driving member (300) is connected to the solar panel assembly (200) through the heat dissipation bracket (500). The first driving member (300) drives the solar panel assembly (200) to rotate about the first axis relative to the support frame (100) through the heat dissipation bracket (500).

8. The solar power generation equipment according to claim 7, characterized in that, The heat dissipation bracket (500) has a plurality of spaced heat dissipation fins (510) on the side opposite to the solar panel assembly (200), and the heat dissipation fins (510) are arranged in an array.

9. The solar power generation equipment according to claim 7, characterized in that, The heat dissipation bracket (500) is a metal structure.

10. The solar power generation equipment according to claim 7, characterized in that, The heat dissipation bracket (500) includes a support plate (520), which has a first support surface and a second support surface connected together. The first solar panel (210) is attached to the first support surface, and in a direction perpendicular to the first support surface, the orthographic projection of the first solar panel (210) coincides with the orthographic projection of the first support surface. The second solar panel (220) is attached to the second support surface, and in a direction perpendicular to the second support surface, the orthographic projection of the second solar panel (220) coincides with the orthographic projection of the second support surface.

Images