Photovoltaic panel cleaning device and photovoltaic system

Abstract

The invention discloses a photovoltaic panel cleaning device and a photovoltaic system, and relates to the technical field of photovoltaic maintenance, and the photovoltaic panel cleaning device comprises a water collection device and a cleaning device; an accommodating cavity for accommodating rainwater is limited by the water collecting device; the cleaning device comprises a water conveying pipe, the water conveying pipe is located between every two adjacent photovoltaic panels, nozzles used for cleaning the photovoltaic panels are arranged on the water conveying pipe towards the photovoltaic panels on at least one side, and the water conveying pipe communicates with the containing cavity. According to the photovoltaic panel cleaning device provided by the invention, the water conveying pipe of the cleaning device extends into the space between the adjacent photovoltaic panels on the two sides, so that the cleaning effect on the multiple photovoltaic panels can be realized by utilizing collected rainwater, manual operation can be reduced, meanwhile, the multiple photovoltaic panels can be cleaned through one water conveying pipe, and the cleaning efficiency is improved. According to the photovoltaic panel cleaning device, the convenience and efficiency of cleaning the photovoltaic panel in the arid and water-deficient area are improved, the photovoltaic panel is cleaned through collected rainwater, the water resource cost can be saved, and then the cleaning cost of the photovoltaic panel is reduced.

Description

Technical Field

[0001] This application relates to the technical field of photovoltaic maintenance, and more specifically, to a photovoltaic panel cleaning device and a photovoltaic system. Background Art

[0002] In a photovoltaic system, when dust accumulates on the surface of a photovoltaic panel, the dust will reflect and absorb the incident sunlight energy, thereby reducing the transmittance of solar radiation, resulting in a decrease in the amount of solar radiation received by the photovoltaic panel and a decline in output power. In addition, the accumulated dust will also cause the temperature of the photovoltaic panel surface to rise and corrosion, reducing its photoelectric conversion efficiency. Therefore, ensuring the cleanliness of the photovoltaic panel is crucial for the entire photovoltaic system. However, in arid and water-scarce areas, it is difficult to clean the photovoltaic panels, and the annual expenditure on cleaning water and labor costs for the photovoltaic panels is huge.

[0003] Therefore, how to improve the cleaning convenience of photovoltaic panels in arid and water-scarce areas and reduce the cleaning cost of photovoltaic panels has become a technical problem that needs to be solved urgently by those skilled in the art. Summary of the Invention

[0004] In view of this, the purpose of this application is to provide a photovoltaic panel cleaning device to improve the cleaning convenience of photovoltaic panels in arid and water-scarce areas and reduce the cleaning cost of photovoltaic panels.

[0005] Another purpose of this application is to provide a photovoltaic system having the above photovoltaic panel cleaning device.

[0006] To achieve the above purpose, this application provides the following technical solutions:

[0007] A photovoltaic panel cleaning device includes:

[0008] A water collection device that limits a receiving cavity for receiving rainwater;

[0009] A cleaning device that includes a water delivery pipe located between adjacent photovoltaic panels on both sides, and spray heads for cleaning the photovoltaic panels are provided on the water delivery pipe facing at least one side of the photovoltaic panels, and the water delivery pipe is communicated with the receiving cavity.

[0010] Optionally, in the above photovoltaic panel cleaning device, it further includes an operation console for controlling the cleaning device, and the operation console has a visualization window for displaying photovoltaic panel cleaning information.

[0011] Optionally, in the above photovoltaic panel cleaning device, the cleaning device further includes a water pump for driving rainwater to flow into the water delivery pipe; and / or,

[0012] A booster water valve is provided on the water delivery pipe.

[0013] Optionally, in the above-mentioned photovoltaic panel cleaning device, a filter screen for filtering debris is arranged in the accommodation cavity.

[0014] Optionally, in the above-mentioned photovoltaic panel cleaning device, a plurality of the nozzles are arranged on the water delivery pipe facing the photovoltaic panels on adjacent sides.

[0015] Optionally, in the above-mentioned photovoltaic panel cleaning device, each of the nozzles is symmetrically arranged on the water delivery pipe; or,

[0016] The nozzles on the water delivery pipe facing the photovoltaic panels on adjacent sides are alternately distributed along the axial direction of the water delivery pipe.

[0017] A photovoltaic system includes photovoltaic panels and the photovoltaic panel cleaning device as described in any one of the above. The photovoltaic panels are multiple, and the water delivery pipe extends between the photovoltaic panels on adjacent sides.

[0018] Optionally, in the above-mentioned photovoltaic system, it further includes a photovoltaic support for supporting the photovoltaic panels. The photovoltaic support includes a column and a cross beam arranged on the column, and the photovoltaic panel is installed on the cross beam.

[0019] Optionally, in the above-mentioned photovoltaic system, the photovoltaic panel is inclinedly arranged on the cross beam; or,

[0020] The cross beam is rotatably connected to the column so that the cross beam can drive the photovoltaic panel to rotate, and the photovoltaic support further includes a driving motor for driving the cross beam to rotate.

[0021] Optionally, in the above-mentioned photovoltaic system, a dust sensor for monitoring the dust state of the photovoltaic panel is arranged on the photovoltaic panel.

[0022] The photovoltaic panel cleaning device provided by the present application can collect rainwater through the accommodation cavity of the water collection device. At the same time, the water delivery pipe of the cleaning device is communicated with the accommodation cavity, and the water delivery pipe extends between the photovoltaic panels on adjacent sides. Thus, the rainwater collected by the water collection device can be sprayed onto at least one side of the photovoltaic panels through the nozzles arranged on the water delivery pipe facing at least one side of the photovoltaic panels, thereby achieving the effect of cleaning the photovoltaic panels. As can be seen from the above examples, the photovoltaic panel cleaning device provided by the present application can extend the water delivery pipe of the cleaning device between the photovoltaic panels on adjacent sides, so that the collected rainwater can be used to clean multiple photovoltaic panels, reducing manual operation. At the same time, multiple photovoltaic panels can be cleaned through one water delivery pipe, improving the convenience and efficiency of cleaning photovoltaic panels in arid and water-scarce areas. And using the collected rainwater to clean the photovoltaic panels can save water resource costs, thereby reducing the cleaning cost of the photovoltaic panels. In addition, the wastewater after cleaning can naturally fall on the ground, which is beneficial to reducing ground drought, preventing soil erosion, and wind prevention and sand fixation, thus achieving the purpose of saving power resources and improving ecological and economic benefits.

[0023] The technical features mentioned above, the technical features to be mentioned below, and the technical features shown separately in the drawings can be combined with each other arbitrarily, as long as the combined technical features are not contradictory to each other. All feasible feature combinations are the technical contents clearly recorded herein. Any one of the multiple sub-features included in the same statement can be applied independently without necessarily being applied together with other sub-features. Description of the Drawings

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the provided drawings.

[0025] Figure 1 Structural schematic diagram of the photovoltaic panel cleaning device provided for the embodiment of the present application;

[0026] Figure 2 Structural schematic diagram of the operating platform provided for the embodiment of the present application;

[0027] Figure 3 Front view of the cleaning device provided for Embodiment 1 of the present application;

[0028] Figure 4 Top view of the cleaning device provided for Embodiment 1 of the present application;

[0029] Figure 5 Provided for Embodiment 1 of the present application Figure 4 A-A sectional view in;

[0030] Figure 6 Front view of the cleaning device provided for Embodiment 2 of the present application;

[0031] Figure 7 Top view of the cleaning device provided for Embodiment 2 of the present application;

[0032] Figure 8 Provided for Embodiment 2 of the present application Figure 7 B-B sectional view in;

[0033] Figure 9 Provided for Embodiment 2 of the present application Figure 7 C-C sectional view in.

[0034] Among them, 100 is a water collecting device, and 101 is a receiving cavity;

[0035] 200 is a cleaning device, 201 is a water delivery pipe, 202 is a spray head, and 203 is a water pump;

[0036] 300 is a photovoltaic panel, and 301 is a dust sensor;

[0037] 400 is an operating console, and 401 is a visualization window;

[0038] 500 is a photovoltaic support, and 501 is a column. Detailed implementation manners

[0039] The core of this application lies in providing a photovoltaic panel cleaning device to improve the cleaning convenience of photovoltaic panels in arid and water-scarce areas and reduce the cleaning cost of photovoltaic panels.

[0040] Another core of this application lies in providing a photovoltaic system with the above-mentioned photovoltaic panel cleaning device.

[0041] Next, the technical solutions in the embodiments of this application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

[0042] With the development of technology, renewable new energy is the most important field in the development of global energy technology today. Solar power generation is the most mature and widely used renewable energy technology at present. In desertified areas, which are characterized by dry climate, strong solar radiation, long sunshine hours, and rich land resources, they are advantageous areas for building large-scale centralized photovoltaic power stations. However, these areas are windy all year round, with frequent surface dust activities, and dust particles in the atmosphere will settle on the surface of photovoltaic panels, resulting in a significant decline in the power generation efficiency of photovoltaic panels.

[0043] When dust accumulates on the surface of the photovoltaic panel, the dust will reflect and absorb the incident sunlight energy, thereby reducing the transmittance of solar radiation, resulting in a decrease in the amount of solar radiation received by the photovoltaic panel and a decline in the output power. In addition, the accumulated dust will also cause the temperature of the photovoltaic panel surface to rise and corrosion, reducing its photoelectric conversion efficiency. Therefore, ensuring the cleanliness of photovoltaic panels is crucial for the entire photovoltaic system. However, in arid and water-scarce areas, it is difficult to clean photovoltaic panels, and the annual expenditure on cleaning water fees and labor costs for photovoltaic panels is huge.

[0044] For this reason, as Figure 1As shown, an embodiment of the present application discloses a photovoltaic panel cleaning device, including a water collection device 100 and a cleaning device 200. By extending the water delivery pipe 201 of the cleaning device 200 between adjacent two sides of the photovoltaic panels 300, the collected rainwater can be utilized to achieve the cleaning effect of multiple photovoltaic panels 300, reducing manual operation. At the same time, multiple photovoltaic panels 300 can be cleaned through one water delivery pipe 201, improving the convenience and efficiency of cleaning photovoltaic panels 300 in arid and water-scarce areas. Moreover, using the collected rainwater to clean the photovoltaic panels 300 can save water resource costs, thereby reducing the cleaning cost of the photovoltaic panels 300. In addition, the wastewater after cleaning can naturally fall on the ground, which is beneficial to reducing ground drought, preventing soil erosion, and windbreak and sand fixation, thus achieving the purpose of saving power resources and enhancing ecological and economic benefits.

[0045] The following will combine Figure 1 and Figure 2 to specifically explain and illustrate the photovoltaic panel cleaning device disclosed in the embodiment of the present application.

[0046] Among them, as Figure 1 shown, the water collection device 100 forms a receiving cavity 101 that can collect and store rainwater. At the same time, the cleaning device 200 may include a water delivery pipe 201. The water delivery pipe 201 is communicated with the receiving cavity 101, and the water delivery pipe 201 is located between adjacent two sides of the photovoltaic panels 300. Nozzles 202 for cleaning the photovoltaic panels 300 are provided on the water delivery pipe 201 facing at least one side of the photovoltaic panels 300. That is, nozzles 202 for cleaning the photovoltaic panels 300 may be provided on the water delivery pipe 201 facing one side of the photovoltaic panels 300, or nozzles 202 for cleaning the photovoltaic panels 300 may be provided on the water delivery pipe 201 facing both sides of the photovoltaic panels 300. Thus, the rainwater collected by the water collection device 100 can be sprayed onto each photovoltaic panel 300 through the nozzles 202 on the water delivery pipe 201, reducing manual operation. At the same time, multiple photovoltaic panels 300 can be cleaned through one water delivery pipe 201, improving the convenience and efficiency of cleaning photovoltaic panels 300 in arid and water-scarce areas. Moreover, using the collected rainwater to clean the photovoltaic panels 300 can save water resource costs, thereby reducing the cleaning cost of the photovoltaic panels 300. In addition, the wastewater after cleaning the photovoltaic panels 300 can flow to the ground, which is beneficial to reducing ground drought, preventing soil erosion, and windbreak and sand fixation, thus achieving the purpose of saving power resources and enhancing ecological and economic benefits.

[0047] Exemplarily, the water collection device 100 can be a water cellar for collecting rainwater or a water bucket for collecting rainwater, and the water collection device 100 has an opening part that facilitates the entry of rainwater into the accommodation cavity 101. At the same time, in order to reduce the sediment in the rainwater from entering the accommodation cavity 101 of the water collection device 100 and clogging the water delivery pipe 201, a filter screen can be provided in the accommodation cavity 101 of the water collection device 100, so that sundries such as sediment can be filtered through the filter screen to prevent sundries such as sediment from entering the water delivery pipe 201, improving the stability and reliability of the cleaning device 200.

[0048] In order to more efficiently transport the rainwater in the water collection device 100 to between the adjacent photovoltaic panels 300 on both sides, as Figure 1 shown, the cleaning device 200 may further include a water pump 203, and the water pump 203 is located at the bottom of the accommodation cavity 101 of the water collection device 100. The water delivery pipe 201 can be connected to the high-pressure water valve of the water pump 203. At the same time, the electric energy generated by the photovoltaic panel 300 can directly drive the water pump 203 to work, so that the water pump 203 can drive the rainwater for transportation. In addition, a booster water valve can also be provided on the water delivery pipe 201 to make the cleaning process more rapid and save water resources.

[0049] Exemplarily, the water delivery pipe 201 can be made of hollow stainless steel pipe to ensure that the water delivery pipe 201 can be used effectively for a long time. At the same time, the connection part of the water delivery pipe 201 can be sealed with waterproof epoxy polyester to prevent sand and dust from entering the water delivery pipe 201 and clogging the water delivery pipe 201 after long-term accumulation.

[0050] As Figure 1 shown, a plurality of spray heads 202 can be provided on the water delivery pipe 201 facing the photovoltaic panels 300 on both adjacent sides, so that the plurality of spray heads 202 on both sides of the water delivery pipe 201 can clean the plurality of photovoltaic panels 300 on both sides simultaneously, thereby improving the cleaning efficiency of the photovoltaic panels 300.

[0051] Exemplarily, as Figures 3 to 5 shown, each spray head 202 can be symmetrically arranged on the water delivery pipe 201. Each spray head 202 can be inclinedly arranged on the water delivery pipe 201, and the angle between each spray head 202 and the horizontal plane can be between 30° and 45°, such as 30°, 35°, 40°, etc., so that the spray heads 202 on both sides of the water delivery pipe 201 are distributed in a "Y" shape. Of course, each spray head 202 on the water delivery pipe 201 facing the photovoltaic panels 300 on both adjacent sides can also be alternately distributed along the axial direction of the water delivery pipe 201, as Figures 6 to 9 shown, and each spray head 202 can be inclinedly arranged on the water delivery pipe 201, and the angle between each spray head 202 and the horizontal plane can be between 30° and 45°, such as 30°, 35°, 40°, etc.

[0052] To facilitate the control of the cleaning device 200, as Figure 2 shown, the photovoltaic panel cleaning device may further include an operating console 400 for controlling the cleaning device 200, and the operating console 400 has a visualization window 401 capable of displaying the cleaning information of the photovoltaic panel 300. Among them, the cleaning information of the photovoltaic panel 300 may include the health status of the photovoltaic panel 300 and the cleaning mode of the cleaning device 200, etc. Of course, the visualization window 401 may also display the weather conditions. Of course, the start and stop buttons of the cleaning device 200 may also be integrated on the visualization window 401. It should be noted that the health status of the photovoltaic panel 300 may include mild cleaning, moderate cleaning, and severe cleaning. The cleaning mode of the cleaning device 200 may be divided into a manual control mode and an automatic cleaning mode.

[0053] Exemplarily, the operating console 400 may be located in a remote control room or in a shelter on-site to prevent rainwater from falling on the operating console 400 and damaging the components inside the operating console 400. Of course, the operating console 400 may also be implanted in electronic devices such as mobile phones, so as to facilitate the timely control of the cleaning device 200 and reduce the risk of safety accidents.

[0054] The photovoltaic panel cleaning device provided by the present application can collect rainwater through the accommodation cavity 101 of the water collection device 100. At the same time, the water delivery pipe 201 of the cleaning device 200 is communicated with the accommodation cavity 101, and the water delivery pipe 201 extends between two adjacent photovoltaic panels 300. Thus, through the nozzles 202 arranged on the water delivery pipe 201 and facing at least one side of the photovoltaic panel 300, the rainwater collected by the water collection device 100 can be sprayed onto at least one side of the photovoltaic panel 300, thereby achieving the effect of cleaning the photovoltaic panel 300.

[0055] The photovoltaic panel 300 cleaning device provided by the present application can extend the water delivery pipe 201 of the cleaning device 200 between two adjacent photovoltaic panels 300, so as to utilize the collected rainwater to achieve the cleaning effect on multiple photovoltaic panels 300, reduce manual operation, and at the same time, the cleaning of multiple photovoltaic panels 300 can be realized through one water delivery pipe 201, improving the convenience and efficiency of cleaning the photovoltaic panel 300 in arid and water-scarce areas. Moreover, using the collected rainwater to clean the photovoltaic panel 300 can save water resource costs, and thus reduce the cleaning cost of the photovoltaic panel 300. In addition, the waste water after cleaning can naturally fall on the ground, which is beneficial to reducing ground drought, preventing soil erosion, and wind prevention and sand fixation, thereby achieving the purpose of saving power resources and improving ecological and economic benefits.

[0056] The embodiment of the present application also discloses a photovoltaic system, including a photovoltaic panel 300 and a photovoltaic panel cleaning device. The photovoltaic panel cleaning device is the photovoltaic panel cleaning device disclosed in the above embodiment. Therefore, the photovoltaic system has all the technical effects of the above photovoltaic panel cleaning device, which will not be elaborated herein.

[0057] Among them, there can be multiple photovoltaic panels 300, and each photovoltaic panel 300 can be distributed to form two rows or more rows. The water delivery pipe 201 can extend into the space between adjacent photovoltaic panels 300 on both sides, that is, it refers to the position where the water delivery pipe 201 extends into the space between two adjacent rows of photovoltaic panels 300, so that the dust on the photovoltaic panels 300 can be washed by the nozzles 202 on the water delivery pipe 201.

[0058] For example, Figure 1 As shown, the photovoltaic system can also include a photovoltaic support 500, and the photovoltaic panels 300 can be supported by the photovoltaic support 500. Optionally, as Figure 1 shown, the photovoltaic support 500 can include columns 501 and crossbeams arranged on the columns 501, and at the same time, the photovoltaic panels 300 can be installed on the crossbeams.

[0059] Exemplarily, one side of the photovoltaic panel 300 can be inclined towards the ground and arranged on the crossbeam, so that the light-receiving surface of the photovoltaic panel 300 can receive more sunlight. At the same time, the waste water for cleaning the photovoltaic panel 300 can flow to the ground faster to irrigate the ground, realizing the reasonable and multi-effect utilization of rainfall resources, reducing the daily maintenance cost of the photovoltaic panel 300, realizing the sustainable utilization of resources, and improving the ecological environment. Of course, the crossbeam and the column 501 can also be rotatably connected, so that the crossbeam can drive the photovoltaic panel 300 to rotate, thereby realizing the adjustment of the angle of the photovoltaic panel 300, ensuring a larger light-receiving surface of the photovoltaic panel 300, and at the same time facilitating the waste water for cleaning the photovoltaic panel 300 to flow to the ground. Optionally, the photovoltaic support 500 can also include a driving motor for driving the crossbeam to rotate, so as to drive the crossbeam to rotate through the driving motor, thereby driving the photovoltaic panel 300 to achieve the purpose of angle adjustment.

[0060] For example, Figure 1 As shown, a dust sensor 301 for monitoring the dust state of the photovoltaic panel 300 can also be provided on the photovoltaic panel 300. Through the dust sensor 301 on the photovoltaic panel 300, the dust condition of the photovoltaic panel 300 can be monitored, and the dust condition can be updated to the visualization window 401 of the operation console 400 in real time. When it is monitored that the dust on the photovoltaic panel 300 accumulates to a preset value, it is judged that the photovoltaic panel 300 needs to be cleaned, a prompt sound can be emitted, and at the same time, the operation console 400 can remotely control the switch of the water pump 203, and drive the rainwater transportation through the water pump 203 to realize the automatic cleaning of the photovoltaic panel 300. It should be noted that the accumulation of dust on the photovoltaic panel 300 to the preset value can be determined according to the decrease value of the power generation efficiency of the photovoltaic panel 300 and the actual power generation efficiency.

[0061] The photovoltaic system provided by the present application, by applying the photovoltaic panel cleaning device to the photovoltaic system in arid and water-scarce areas, can achieve the local utilization of rainfall resources, avoid the need to purchase water from other places, and the intelligent operation console 400 of the photovoltaic panel cleaning device is more convenient and faster to operate, with higher cleaning efficiency. This photovoltaic system not only improves the ecological environment of the photovoltaic area, but also saves and utilizes the local rainfall resources. At the same time, the removal of dust accumulation on the photovoltaic panel 300 is not only beneficial to maintaining the use of the photovoltaic panel 300, but also helps to save the maintenance costs caused by photovoltaic dust accumulation every year, saving a large amount of manpower and material resources.

[0062] The terms "first" and "second" etc. in the description and claims of the present application and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but may include unlisted steps or units.

[0063] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A photovoltaic panel cleaning device, characterized in that: include: A water collection device (100), wherein the water collection device (100) defines a receiving chamber (101) for receiving rainwater; A cleaning device (200), the cleaning device (200) comprising a water pipe (201), the water pipe (201) being located between two adjacent photovoltaic panels (300), and a nozzle (202) for cleaning the photovoltaic panel (300) being provided on the water pipe (201) facing at least one of the photovoltaic panels (300), the water pipe (201) being in communication with the accommodating chamber (101).

2. The photovoltaic panel cleaning device according to claim 1, characterized in that: It also includes an operating table (400) for controlling the cleaning device (200), and the operating table (400) has a visualization window (401) for displaying cleaning information of the photovoltaic panel (300).

3. The photovoltaic panel cleaning device according to claim 1, characterized in that: The cleaning device (200) further comprises a water pump (203) for driving rainwater to flow into the water pipe (201); and / or, The water delivery pipe (201) is provided with a booster water valve.

4. The photovoltaic panel cleaning device according to claim 1, characterized in that: A filter screen for filtering debris is arranged in the accommodating cavity (101).

5. The photovoltaic panel cleaning device according to claim 1, characterized in that: A plurality of the nozzles (202) are disposed on the water delivery pipe (201) facing the photovoltaic panels (300) on two adjacent sides.

6. The photovoltaic panel cleaning device according to claim 1, characterized in that: The nozzles (202) are symmetrically arranged on the water pipe (201); or, The nozzles (202) on the water pipe (201) facing the photovoltaic panels (300) on two adjacent sides are alternately distributed along the axial direction of the water pipe (201).

7. A photovoltaic system, characterized in that: It comprises a photovoltaic panel (300) and a photovoltaic panel cleaning device as claimed in any one of claims 1 to 6, wherein there are a plurality of photovoltaic panels (300), and the water pipe (201) extends between the photovoltaic panels (300) on two adjacent sides.

8. The photovoltaic system according to claim 7, characterized in that: It also includes a photovoltaic support (500) for supporting the photovoltaic panel (300), wherein the photovoltaic support (500) includes a column (501) and a crossbeam arranged on the column (501), and the photovoltaic panel (300) is mounted on the crossbeam.

9. The photovoltaic system according to claim 8, characterized in that: The photovoltaic panel (300) is arranged obliquely on the crossbeam; or, The crossbeam is rotatably connected to the column (501) so that the crossbeam can drive the photovoltaic panel (300) to rotate, and the photovoltaic support (500) further comprises a driving motor for driving the crossbeam to rotate.

10. The photovoltaic system according to any one of claims 7 to 9, characterized in that: The photovoltaic panel (300) is provided with a dust sensor (301) for monitoring the dust status of the photovoltaic panel (300).

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