A distributed photovoltaic panel support and method of use thereof

Abstract

The application discloses a kind of distributed photovoltaic panel support and its using method, including chassis, two front and rear parallel support plates are installed in the top of the chassis, two the support plate top is longitudinally penetrated with support pole, and the support pole outside is equipped with strip plate.The application calculates the solar angle of each day by PLC controller, and is converted into the best inclination of photovoltaic panel in real time, to control motor intermittent start-stop according to preset time interval, drive photovoltaic panel to rotate to target angle and self-lock, realize photovoltaic panel panel maximum illumination all day, significantly improve the power generation efficiency of photovoltaic panel;By setting a top of photovoltaic panel on the top of photovoltaic panel can be rotated, can clean the dust on the top of photovoltaic panel when photovoltaic panel adjusts angle, ensure power generation efficiency;By setting wind speed sensor, the wind speed near photovoltaic panel is monitored in real time, so that the wind resistance of the distributed photovoltaic panel support is greatly improved, and it has high safety when using.

Description

Technical Field

[0001] This invention specifically relates to a distributed photovoltaic panel support and its usage method. Background Technology

[0002] Distributed photovoltaic (PV) brackets refer to the load-bearing and angle-adjustable frames installed in distributed PV power generation systems. They are generally made of materials such as aluminum alloy, carbon steel, and stainless steel, with hot-dip galvanized surfaces to ensure they do not rust during long-term outdoor use. Their main function is to fix and support PV modules and arrange them at a certain tilt angle or direction. They directly bear external loads such as wind, snow, and earthquakes, and transfer these loads to the building or foundation through connectors, thereby ensuring safe, stable, and efficient power generation throughout the PV system's operating cycle. They are an indispensable and crucial component of PV power generation systems.

[0003] However, in actual use, the angle of the photovoltaic panels is fixed once installed and cannot be adjusted, which makes the surface of the photovoltaic panels unsuitable for light absorption and results in low power generation efficiency. At the same time, the distributed photovoltaic support system is prone to deformation or loosening under wind force, resulting in low stability and even causing safety accidents. In addition, after a long period of use, dust will fall on the surface of the photovoltaic panels, affecting power generation efficiency.

[0004] Therefore, it is necessary to invent a distributed photovoltaic panel support system and its usage method to solve the above problems. Summary of the Invention

[0005] (a) Purpose of the invention

[0006] The purpose of this invention is to provide a distributed photovoltaic (PV) panel support system and its usage method. A PLC controller calculates the daily solar angle and converts it in real time to the optimal tilt angle of the PV panel. This allows the motor to start and stop intermittently at preset time intervals, rotating the PV panel to the target angle and locking it in place. This achieves maximum sunlight exposure for the PV panel throughout the day, significantly improving its power generation efficiency. Furthermore, a device is installed on the top of the PV panel that moves with it to clean dust from the panel as the angle is adjusted, ensuring continued power generation efficiency. Finally, a wind speed sensor monitors the wind speed near the PV panel in real time, greatly enhancing the wind resistance of the distributed PV panel support system and improving its safety during use, thus addressing the aforementioned shortcomings in the technology.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the present invention provides the following technical solution: a distributed photovoltaic panel support, including a base frame, two support plates arranged in parallel front to back are installed on the top of the base frame, a support rod is longitudinally inserted through the top of the two support plates, and a strip plate is sleeved on the outside of the support rod;

[0009] Photovoltaic panels are installed on top of the strip panel;

[0010] An adjustment assembly, installed on the top of the base frame and located below the strip plate, is used to drive the photovoltaic panel to rotate around the axis of the support rod;

[0011] A cleaning component is installed on top of the photovoltaic panel, and the cleaning component can roll on top of the photovoltaic panel as the photovoltaic panel rotates;

[0012] A wind speed sensor is installed on top of the photovoltaic panel to protect it.

[0013] Preferably, the adjustment component includes:

[0014] A bearing plate is installed on the inner side of the bottom of the two support plates. A motor is installed on the top of the bearing plate. The output end of the motor is connected to a rotating shaft. The end of the rotating shaft extends into the inside of the shaft support. The bottom of the shaft support is connected to the top of the support plate.

[0015] A semi-circular toothed ring, wherein the top ends of the semi-circular toothed ring are respectively connected to the left and right ends of the strip plate;

[0016] The gear is fitted onto the outside of the rotating shaft and meshes with the semi-circular gear ring.

[0017] Preferably, the adjustment component further includes:

[0018] A semi-circular plate is disposed inside a semi-circular toothed ring, and both ends of the semi-circular plate are connected to the left and right ends of the strip plate, respectively.

[0019] A limiting post is installed on the inner side of the middle part of the two support plates;

[0020] Two baffles are fitted on the outside of the limiting post, and the inner walls of the two baffles respectively contact the front and rear side walls of the semi-circular toothed ring;

[0021] Two rollers are installed at both ends of the support rod and are in contact with the bottom of the photovoltaic panel.

[0022] Preferably, an annular channel is provided between the semi-annular plate and the semi-circular gear ring, and the limiting post extends longitudinally through the annular channel and contacts the inner wall of the semi-circular gear ring and the outer wall of the semi-annular plate.

[0023] Preferably, both support plates have relief grooves on their tops for accommodating rollers.

[0024] Preferably, the cleaning component includes:

[0025] The frame plates are installed on the front and rear sides of the photovoltaic panel and extend along the length of the photovoltaic panel. Each of the two frame plates has a sliding hole extending along the length of the photovoltaic panel.

[0026] A rolling rod is positioned between two frame plates, with both ends extending to the outside of two sliding holes;

[0027] A rolling brush is fitted onto the outside of the rolling rod;

[0028] Two nuts are screwed onto the two ends of the rolling rod, respectively, and are located on the outside of the frame plate.

[0029] Preferably, both of the two support plates are connected to reinforcing ribs on their left and right sides, and the bottom of the reinforcing ribs is connected to the top of the base frame.

[0030] Preferably, a PLC controller is installed on the base frame, and the wind speed sensor is electrically connected to the PLC controller to realize signal transmission.

[0031] Preferably, the motor is a worm gear reducer motor, and an eccentric adjustment seat for supporting the motor is provided between the motor and the support plate. The PLC controller is electrically connected to a relay, and the relay is electrically connected to the motor. The PLC controller controls the start, stop, forward and reverse rotation of the motor through the relay.

[0032] A method for using a distributed photovoltaic panel support system includes the following steps:

[0033] S1. Placement of photovoltaic panels: The distributed photovoltaic panels are placed from east to west on the site to be used. The PLC controller calculates the solar azimuth angle at different times of the day based on the placement site and converts it into the target angle that the photovoltaic panels need to rotate at a certain time of the day.

[0034] S2. Adjustment of the photovoltaic panel angle: At the beginning of the morning, the PLC controller reads the current date, latitude and longitude, calculates the sunrise azimuth angle, and waits for sunrise. At this time, the photovoltaic panel is horizontally facing east. Then, the PLC controller reads the current angle of the photovoltaic panel. If the deviation exceeds the threshold, the motor is started, which makes the gear rotate. Then, under the transmission of the semi-circular gear ring, the photovoltaic panel rotates around the axis of the support rod, and the angle of the photovoltaic panel is finely adjusted to the target angle, so that the angle between the normal of the photovoltaic panel surface and the sunlight is less than or equal to the threshold. As the photovoltaic panel continues to rotate, when it finally overlaps with the sunset azimuth angle, the night reset command is directly triggered, the motor is started once, and it controls the photovoltaic panel to rotate back to the initial position facing east. Then the power is cut off and locked, returning to the initial state, in preparation for chasing the sun the next day.

[0035] S3. Cleaning the photovoltaic panel: When the photovoltaic panel rotates or resets daily, the frame will rotate with the photovoltaic panel, thus being in a tilted state. At this time, the rolling rod inside the sliding hole will be driven by gravity to roll the rolling brush towards the lower end of the frame to wipe away the dust on the panel surface.

[0036] S4. Wind protection of photovoltaic panels: The PLC controller program presets a first-level warning wind speed and a second-level protection wind speed. The wind speed sensor monitors the wind speed in real time. The photovoltaic panel will normally track the sun and adjust its angle only when the wind speed is less than the first-level warning wind speed. When the wind speed is greater than the first-level warning wind speed but less than the second-level protection wind speed, the angle will remain unchanged. When the wind speed is greater than the second-level protection wind speed, the tiling action will be forcibly executed.

[0037] Compared with the prior art, the beneficial effects of the above-mentioned technical solution of the present invention are:

[0038] 1. This invention calculates the daily solar angle using a PLC controller and converts it into the optimal tilt angle of the photovoltaic panel in real time. When the angle between the normal of the photovoltaic panel surface and the sunlight is greater than a threshold, the PLC controller can control the motor to start and stop intermittently at preset time intervals, thereby driving the photovoltaic panel to rotate to the target angle and lock itself, achieving maximum sunlight exposure for the photovoltaic panel throughout the day and significantly improving the power generation efficiency of the photovoltaic panel.

[0039] 2. This invention provides a rolling brush that moves down the top of the photovoltaic panel as it rotates. This brush can clean the dust on the top of the photovoltaic panel when the panel is adjusted, thereby improving the cleanliness of the panel surface, allowing for full absorption of sunlight, and ensuring power generation efficiency.

[0040] 3. By setting up a wind speed sensor, the present invention monitors the wind speed near the photovoltaic panel in real time and determines whether the photovoltaic panel is temporarily set to track the sun, maintains the same angle, or is adjusted to a horizontal state, so as to reduce wind resistance and greatly improve the wind resistance of the distributed photovoltaic panel support, making it safer to use. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0042] Figure 2 This is a perspective view of the present invention;

[0043] Figure 3 This is a perspective view of the invention from another angle;

[0044] Figure 4 This is a schematic diagram of the structure of the adjustment component of the present invention;

[0045] Figure 5 This is a schematic diagram of the cleaning component of the present invention;

[0046] Figure 6 This is a demonstration diagram of the invention after being rotated counterclockwise;

[0047] Figure 7 This is a demonstration diagram of the invention after clockwise rotation;

[0048] Figure 8 This is a structural block diagram of the photovoltaic panel and motor of the present invention.

[0049] Explanation of reference numerals in the attached figures:

[0050] 1. Base frame, 2. Support plate, 3. Support rod, 4. Strip plate, 5. Photovoltaic panel, 6. Adjustment component, 61. Bearing plate, 62. Motor, 63. Rotating shaft, 64. Shaft support, 65. Semi-circular gear ring, 66. Gear, 67. Semi-ring plate, 68. Limiting post, 69. Baffle, 610. Roller;

[0051] 7 Cleaning components, 71 Frame plate, 72 Sliding hole, 73 Rolling rod, 74 Rolling brush, 75 Nut;

[0052] 8. Wind speed sensor, 9. Reinforcing rib, 10. PLC controller, 11. Eccentric adjustment seat. Detailed Implementation

[0053] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0054] This invention provides the following: Figure 1-8 The distributed photovoltaic panel support shown includes a base frame 1, on the top of which two support plates are installed side by side, and a support rod 3 runs longitudinally through the top of the two support plates, and a strip plate 4 is sleeved on the outside of the support rod 3;

[0055] Photovoltaic panel 5 is installed on top of the strip plate 4;

[0056] Adjustment component 6 is installed on the top of the base frame 1 and located below the strip plate 4, and is used to drive the photovoltaic panel 5 to rotate around the axis of the support rod 3;

[0057] Cleaning component 7 is installed on the top of the photovoltaic panel 5, and the cleaning component 7 can roll on the top of the photovoltaic panel 5 as the photovoltaic panel 5 rotates;

[0058] A wind speed sensor 8 is installed on the top of the photovoltaic panel 5 to protect the photovoltaic panel 5.

[0059] In one embodiment, the adjusting component 6 includes: a support plate 61 installed on the inner side of the bottom of the two support plates; a motor 62 installed on the top of the support plate 61; a rotating shaft 63 connected to the output end of the motor 62; the end of the rotating shaft 63 extending into the interior of a shaft support 64; the bottom of the shaft support 64 connected to the top of the support plate; and the shaft support 64 providing support for the rotating shaft 63, ensuring stability when the rotating shaft 63 rotates, thereby making the meshing of the gear 66 and the semi-circular gear ring 65 more stable.

[0060] A semi-circular gear ring 65, the top ends of which are connected to the left and right ends of the strip plate 4 respectively; a gear 66, which is sleeved on the outside of the rotating shaft 63 and meshes with the semi-circular gear ring 65; a semi-ring plate 67, which is disposed inside the semi-circular gear ring 65 and whose ends are connected to the left and right ends of the strip plate 4 respectively.

[0061] A limiting post 68 is installed on the inner side of the middle of the two support plates; two baffles 69 are sleeved on the outer side of the limiting post 68, and the inner walls of the two baffles 69 respectively contact the front and rear side walls of the semi-circular gear ring 65. An annular channel is spaced between the semi-annular plate 67 and the semi-circular gear ring 65. The limiting post 68 extends longitudinally through the annular channel and contacts the inner wall of the semi-circular gear ring 65 and the outer wall of the semi-annular plate 67. The setting of the limiting post 68 allows the limiting post 68 to move in a de facto manner along the extension direction of the annular channel when the semi-circular gear ring 65 rotates, so that the limiting post 68 can support the semi-circular gear ring 65 in real time, reduce the pressure on the gear 66 and the roller 610, and make the semi-circular gear ring 65 have a stable supporting force, thereby ensuring that the photovoltaic panel 5 is relatively stable when rotating and adjusting.

[0062] Two rollers 610 are installed at both ends of the support rod 3 and contact the bottom of the photovoltaic panel 5. When the photovoltaic panel 5 rotates, the rollers 610 also rotate around the axis of the support rod 3 and form rolling friction with the bottom of the photovoltaic panel 5. This allows the rollers 610 to support the front and rear sides of the photovoltaic panel 5, greatly improving the stability of the photovoltaic panel 5 when it rotates. The top of both support plates is provided with relief grooves to accommodate the rollers 610. The opening of the relief grooves makes the installation of the rollers 610 simple and convenient.

[0063] In one embodiment, the cleaning component 7 includes: frame plates 71 installed on the front and rear sides of the photovoltaic panel 5 and extending along the length of the photovoltaic panel 5, with sliding holes 72 extending along the length of the photovoltaic panel 5 through both frame plates 71; a rolling rod 73 disposed between the two frame plates 71, with both ends extending to the outside of the two sliding holes 72 respectively; and a rolling brush 74 sleeved on the outside of the rolling rod 73.

[0064] Two nuts 75 are screwed onto both ends of the rolling rod 73 and located on the outside of the frame plate 71. After the rolling brush 74 has been used for a long time, the operator can unscrew either nut 75 to pull out the sliding hole 72 at one end of the rolling rod 73, which makes it easy to replace the rolling brush 74 wrapped around the outside of the rolling rod 73. When the two nuts 75 are screwed onto both ends of the rolling rod 73, the rolling rod 73 cannot be offset in the front and back direction, and can roll stably on the surface of the photovoltaic panel 5, resulting in a good dust removal effect.

[0065] In one embodiment, both sides of the two support plates are connected to reinforcing ribs 9, and the bottom of the reinforcing ribs 9 is connected to the top of the base frame 1, which improves the connection strength between the base frame 1 and the support plates.

[0066] A PLC controller 10 is installed on the base frame 1. The wind speed sensor 8 is electrically connected to the PLC controller 10 and realizes signal transmission. The motor 62 is set as a worm gear reducer motor 62, which enables the motor 62 to have a self-locking function when in use, so as to ensure that the gear 66 maintains its position after rotation, thereby ensuring that the angle of the photovoltaic panel 5 remains unchanged.

[0067] An eccentric adjustment seat 11 for supporting the motor 62 is provided between the motor 62 and the bearing plate 61. The center distance between the gear 66 and the semi-circular gear ring 65 can be adjusted by rotating the eccentric seat, so that the meshing clearance between the gear 66 and the semi-circular gear ring 65 can be adjusted at one time, and the positions of the gear 66 and the semi-circular gear ring 65 can be fixed.

[0068] The PLC controller 10 is electrically connected to a relay, and the relay is electrically connected to a motor 62. The PLC controller 10 controls the start, stop, forward and reverse rotation of the motor 62 through the relay.

[0069] Among them, the photovoltaic panel 5 is connected to an inverter, which is connected to a battery. The battery powers the motor 62, the PLC controller 10, and the wind speed sensor 8. The motor 62 is set to 20W, thus making full use of the power generation capacity of the photovoltaic panel 5. The degree of automation is high, no external power supply is required, and the safety is greatly improved.

[0070] A method for using a distributed photovoltaic panel support system includes the following steps:

[0071] S1. Placement of photovoltaic panel 5: The distributed photovoltaic panel is placed from east to west on the site to be used. The PLC controller 10 calculates the solar azimuth angle at different times of the day based on the placement site and converts it into the target angle that the photovoltaic panel 5 needs to rotate at a certain time of the day.

[0072] S2. Adjustment of the angle of photovoltaic panel 5: At the beginning of the morning, PLC controller 10 reads the current date, latitude and longitude, calculates the sunrise azimuth angle, and waits for sunrise. At this time, photovoltaic panel 5 is horizontally facing east. Then, PLC controller 10 reads the current angle of photovoltaic panel 5. If the deviation exceeds the threshold, motor 62 is started, which makes gear 66 rotate. Then, under the transmission of semi-circular gear ring 65, photovoltaic panel 5 rotates around the axis of support rod 3, and the angle of photovoltaic panel 5 is finely adjusted to the target angle, so that photovoltaic panel 5 always keeps the angle between the normal of the panel surface and the sunlight less than or equal to the threshold. As photovoltaic panel 5 continues to rotate, when it finally overlaps with the sunset azimuth angle, the night reset command is directly triggered, motor 62 is started once, which makes it control photovoltaic panel 5 to rotate back to the initial position facing east. Then, the power is cut off and locked, returning to the initial state, in preparation for chasing the sun the next day.

[0073] S3. Cleaning of photovoltaic panel 5: When photovoltaic panel 5 rotates or resets daily, the frame will rotate with photovoltaic panel 5 and thus be in a tilted state. At this time, the rolling rod 73 inside the sliding hole 72 will drive the rolling brush 74 to roll towards the lower end of the frame under the action of gravity, wiping away the dust on the panel surface.

[0074] S4. Wind protection of photovoltaic panel 5: The program of PLC controller 10 presets the first-level warning wind speed and the second-level protection wind speed. The wind speed sensor 8 monitors the wind speed in real time. The photovoltaic panel 5 normally tracks the sun and adjusts its angle only when the wind speed is less than the first-level warning wind speed. When the wind speed is greater than the first-level warning wind speed but less than the second-level protection wind speed, the angle remains unchanged. When the wind speed is greater than the second-level protection wind speed, the tiling action is forcibly executed.

[0075] Implementation Method: In use, the operator first calculates the solar azimuth angle at different times of day based on the latitude, longitude, and date and time of the distributed photovoltaic panel support installation site using an astronomical solar trajectory algorithm written into the PLC controller 10. This is then converted into the target angle for the photovoltaic panel 5 to rotate, ensuring that sunlight perpendicularly illuminates the surface of the photovoltaic panel 5. This angle of incidence maximizes the solar radiation received and results in the highest power generation efficiency for the photovoltaic panel 5. After the motor 62 drives the semi-circular gear ring 65 to rotate via the gear 66, further rotating the photovoltaic panel 5 to the target angle, the motor 62 is immediately de-energized. The internal worm gear achieves self-locking, maintaining the positions of the gear 66 and the semi-circular gear ring 65, thus ensuring that the photovoltaic panel 5 maintains its rotated angle and awaits the next trigger. Specifically:

[0076] Before sunrise, the PLC controller 10 reads the current date, latitude and longitude, calculates the sunrise azimuth angle, and starts the output of the motor 62 to drive the photovoltaic panel 5 to reset through the gear 66 and the semi-circular gear ring 65. At this time, the photovoltaic panel 5 is horizontally facing east, waiting for sunrise.

[0077] Subsequently, every 45 minutes, the current solar azimuth angle is calculated and compared with the current angle of the photovoltaic panel 5. When the deviation exceeds the threshold, the motor 62 is started, causing the gear 66 to rotate. Then, under the transmission of the semi-circular gear ring 65, the photovoltaic panel 5 rotates around the axis of the support rod 3, and the angle of the photovoltaic panel 5 is finely adjusted to the target angle, so that the photovoltaic panel 5 always keeps the angle between the normal of the panel surface and the sunlight less than or equal to the threshold.

[0078] The threshold is set to ±2°. During this process, motor 62 only starts when fine-tuning, and the single running time is 5-15 seconds. The rest of the time, it is still powered off and self-locked.

[0079] Finally, the sunset azimuth angle is calculated. When the photovoltaic panel 5 rotates to the westward position and overlaps with the sunset azimuth angle, i.e. the deviation is within ±2°, the night reset command is triggered, the motor 62 is started once, and it controls the photovoltaic panel 5 to rotate back to the initial eastward position. Then the power is cut off and locked, returning to the initial state, in preparation for chasing the sun the next day.

[0080] Among them, staff can also adjust the triggering frequency according to the season. For example, in winter when the sun is low and the movement is slow, the motor 62 is started every 60 minutes. In summer when the sun is high and the movement is fast, the motor 62 is started every 30 minutes, so as to ensure the accuracy of the photovoltaic panel 5 after rotation.

[0081] Among them, the astronomical solar trajectory algorithm refers to a set of methods or models that, based on celestial mechanics and spherical astronomy theory, use known time (year, month, day, hour, minute, second) and geographical coordinates (longitude, latitude) of the observation point to calculate the apparent position of the sun in the sky at any time through a series of mathematical formulas. This position is usually represented by the solar altitude angle and the solar azimuth angle. This is an existing technology that can be directly written into the PLC controller 10 for use.

[0082] Meanwhile, two wind speed thresholds are preset in the program of PLC controller 10, specifically the first-level warning wind speed and the second-level protection wind speed;

[0083] Among them, the first-level warning wind speed is set to 12m / s. At this time, the photovoltaic panel 5 will no longer adjust its angle according to the sun's position and will keep its current angle unchanged.

[0084] The secondary protection wind speed is set to 18m / s. At this time, regardless of the angle of the photovoltaic panel 5, the motor 62 is started to rotate the photovoltaic panel 5 to a horizontal state and perform wind protection.

[0085] Therefore, during the angle adjustment of photovoltaic panel 5, wind speed sensor 8 simultaneously monitors wind speed. Photovoltaic panel 5 will normally track the sun and adjust its angle only when the wind speed is less than 12 m / s. When the wind speed is greater than 12 m / s but less than 18 m / s, the angle will remain unchanged. When the wind speed is greater than 18 m / s, the tiling action will be forcibly executed. Throughout the process, the protection will only be triggered if the wind speed exceeds the standard for more than 3 seconds to avoid being misled by sudden gusts.

[0086] Furthermore, when the photovoltaic panel 5 rotates eastward or westward, i.e. clockwise or counterclockwise, the frame is in an inclined state. At this time, the rolling rod 73 inside the sliding hole 72 will drive the rolling brush 74 to roll towards the lower end of the frame under the action of gravity. That is, when the photovoltaic panel 5 rotates, the rolling brush 74 will roll once on the surface of the photovoltaic panel 5 to wipe away the dust on the surface, so that the surface of the panel is kept clean and can fully absorb sunlight to ensure power generation efficiency.

[0087] In summary, this distributed photovoltaic panel support system, through the built-in solar trajectory calculation program based on latitude, longitude, and date in the PLC controller 10, can calculate the optimal tilt angle of the photovoltaic panel 5 in real time according to the solar angle of the day. When the angle between the normal of the photovoltaic panel 5 and the sunlight is greater than a threshold, the PLC controller 10 can control the motor 62 to start and stop intermittently at preset time intervals, thereby driving the photovoltaic panel 5 to rotate to the target angle and lock itself, achieving maximum sunlight on the photovoltaic panel 5 throughout the day, significantly improving the power generation efficiency of the photovoltaic panel 5. During this process, the wind speed sensor 8 collects wind speed signals in real time and transmits them to the PLC controller 10 to determine whether the photovoltaic panel 5 should temporarily stop tracking the sun, maintain the angle, or be adjusted to a horizontal state to reduce wind resistance, thus greatly improving the wind resistance of the distributed photovoltaic panel support system and providing high safety during use.

[0088] This implementation method specifically addresses the problems in the existing distributed photovoltaic (PV) support system where the angle of the PV panel 5 is fixed once installed and cannot be adjusted, resulting in poor light absorption and low power generation efficiency. Furthermore, the distributed PV support system is prone to deformation or loosening under wind conditions, leading to low stability and potentially safety accidents. Additionally, dust accumulates on the PV panel 5 after prolonged use, further impacting power generation efficiency.

[0089] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used above are only some embodiments described in this invention. Obviously, those skilled in the art can obtain other drawings based on these drawings.

[0090] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A distributed photovoltaic panel support system, characterized in that, include: The base frame (1) has two supporting plates arranged in parallel front and back on its top. The top of the two supporting plates is longitudinally penetrated by a support rod (3), and a strip plate (4) is sleeved on the outside of the support rod (3). A photovoltaic panel (5) is installed on top of the strip panel (4); Adjustment component (6), installed on the top of the base frame (1) and located below the strip plate (4), is used to drive the photovoltaic panel (5) to rotate around the axis of the support rod (3); A cleaning component (7) is installed on the top of the photovoltaic panel (5). The cleaning component (7) can roll on the top of the photovoltaic panel (5) as the photovoltaic panel (5) rotates. A wind speed sensor (8) is installed on the top of the photovoltaic panel (5) to protect the photovoltaic panel (5).

2. A distributed photovoltaic panel support according to claim 1, characterized in that: The adjustment component (6) includes: A bearing plate (61) is installed on the inner side of the bottom of the two support plates. A motor (62) is installed on the top of the bearing plate (61). The output end of the motor (62) is connected to a rotating shaft (63). The end of the rotating shaft (63) extends into the shaft support (64). The bottom of the shaft support (64) is connected to the top of the support plate. The top ends of the semi-circular toothed ring (65) are respectively connected to the left and right ends of the strip plate (4); The gear (66) is sleeved on the outside of the rotating shaft (63) and meshes with the semi-circular gear ring (65).

3. A distributed photovoltaic panel support according to claim 2, characterized in that: The adjustment component (6) further includes: A semi-circular plate (67) is disposed inside a semi-circular toothed ring (65), and the two ends of the semi-circular plate (67) are respectively connected to the left and right ends of the strip plate (4); A limiting post (68) is installed on the inner side of the middle part of the two support plates; Two baffles (69) are sleeved on the outside of the limiting post (68), and the inner walls of the two baffles (69) respectively contact the front and rear side walls of the semi-circular toothed ring (65); Two rollers (610) are installed at both ends of the support rod (3) and are in contact with the bottom of the photovoltaic panel (5).

4. A distributed photovoltaic panel support according to claim 3, characterized in that: An annular channel is spaced between the semi-annular plate (67) and the semi-circular toothed ring (65). The limiting post (68) extends longitudinally through the annular channel and contacts the inner wall of the semi-circular toothed ring (65) and the outer wall of the semi-annular plate (67).

5. A distributed photovoltaic panel support according to claim 3, characterized in that: Both of the support plates have relief grooves on their tops for accommodating the rollers (610).

6. A distributed photovoltaic panel support according to claim 1, characterized in that: The cleaning component (7) includes: The frame plates (71) are installed on the front and rear sides of the photovoltaic panel (5) and extend along the length of the photovoltaic panel (5). Both frame plates (71) have sliding holes (72) extending along the length of the photovoltaic panel (5). A rolling rod (73) is disposed between two frame plates (71), and its two ends extend to the outside of two sliding holes (72); A rolling brush (74) is fitted onto the outside of the rolling rod (73); Two nuts (75) are screwed onto the two ends of the rolling rod (73) and located on the outside of the frame plate (71).

7. A distributed photovoltaic panel support according to claim 1, characterized in that: The two support plates are connected to reinforcing ribs (9) on both sides, and the bottom of the reinforcing ribs (9) is connected to the top of the base frame (1).

8. A distributed photovoltaic panel support according to claim 1, characterized in that: A PLC controller (10) is installed on the base frame (1), and the wind speed sensor (8) is electrically connected to the PLC controller (10) to realize signal transmission.

9. A distributed photovoltaic panel support according to claim 8, characterized in that: The motor (62) is configured as a worm gear reducer motor (62). An eccentric adjustment seat (11) for supporting the motor (62) is provided between the motor (62) and the support plate (61). The PLC controller (10) is electrically connected to a relay, and the relay is electrically connected to the motor (62). The PLC controller (10) controls the start, stop, forward and reverse rotation of the motor (62) through the relay.

10. A method of using a distributed photovoltaic panel support according to any one of claims 1-9, characterized in that: Includes the following steps: S1. Placement of photovoltaic panels: The distributed photovoltaic panels are placed from east to west on the site to be used. The PLC controller (10) calculates the solar azimuth angle at different times of the day based on the placement site and converts it into the target angle that the photovoltaic panels (5) need to rotate at a certain time of the day. S2. Adjustment of the angle of the photovoltaic panel: At the beginning of the morning, the PLC controller (10) reads the current date, latitude and longitude, calculates the sunrise azimuth angle, and waits for the sunrise. At this time, the photovoltaic panel (5) is horizontally facing east. Then the PLC controller (10) reads the current angle of the photovoltaic panel (5). If the deviation exceeds the threshold, the motor (62) is started, so that the gear (66) rotates. Then, under the transmission of the semi-circular gear ring (65), the photovoltaic panel (5) rotates around the axis of the support rod (3) to finely adjust the angle of the photovoltaic panel (5) to the target angle, so that the photovoltaic panel (5) always keeps the angle between the normal of the panel surface and the sunlight less than or equal to the threshold. As the photovoltaic panel (5) continues to rotate, when it finally overlaps with the sunset azimuth angle, the night reset command is directly triggered, the motor (62) is started once, so that it controls the photovoltaic panel (5) to rotate back to the initial position facing east again, and then the power is cut off and locked, returning to the initial state, in preparation for chasing the sun the next day. S3. Cleaning of photovoltaic panels; When the photovoltaic panel (5) rotates or resets daily, the frame will rotate along with the photovoltaic panel (5) and thus be in an inclined state. At this time, the rolling rod (73) inside the sliding hole (72) will be driven by gravity to roll the rolling brush (74) toward the end of the frame below, wiping away the dust on the panel surface. S4. Wind protection of photovoltaic panels: The first-level warning wind speed and the second-level protection wind speed are preset in the program of PLC controller (10). The wind speed sensor (8) monitors the wind speed in real time. The photovoltaic panel (5) tracks the sun normally and adjusts the angle only when the wind speed is less than the first-level warning wind speed. When the wind speed is greater than the first-level warning wind speed and less than the second-level protection wind speed, the angle remains unchanged. When the wind speed is greater than the second-level protection wind speed, the tiling action is forcibly executed.

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