Supporting device of photovoltaic module and photovoltaic system

Abstract

The utility model relates to the technical field of photovoltaic power generation, particularly provides a supporting device of a photovoltaic module and a photovoltaic system, and aims to solve the problem that the light energy conversion rate of the conventional photovoltaic power generation device is low. In order to achieve the purpose, the supporting device of the photovoltaic module comprises a rotating mechanism, a supporting mechanism, a supporting mechanism and a supporting mechanism, wherein the rotating mechanism is provided with a mounting surface for mounting the photovoltaic module; the light monitoring module is used for monitoring the emitting direction of light; and the controller is in communication connection with the light monitoring module, and the controller controls the rotating mechanism to rotate according to the transmitting direction, so that an included angle formed by the transmitting direction and the mounting surface is within a preset range. The supporting device of the photovoltaic assembly can automatically adjust the direction of the photovoltaic cell panel according to the position of the sun, so that the photovoltaic cell panel can always keep the best illumination angle, and the absorption efficiency of light energy is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic power generation, and specifically provides a supporting device of a photovoltaic component and a photovoltaic system. Background Art

[0002] Solar energy is not only a clean and pollution-free energy source, but also the most abundant renewable energy source. At present, the effective way to utilize solar energy is to convert it into electrical energy using photovoltaic power generation technology.

[0003] Photovoltaic power generation is a technology that uses the photovoltaic effect of semiconductor interfaces to directly convert light energy into electrical energy. Photovoltaic systems are mainly composed of photovoltaic panels (modules) and electronic components such as controllers. Photovoltaic panels can be packaged and protected in series to form large-area photovoltaic cell modules, which are then combined with power controllers and other components to form photovoltaic power generation devices.

[0004] However, solar energy is greatly affected by natural conditions and weather, which affects the conversion efficiency and reliability of photovoltaic systems. Experiments show that when light shines vertically on photovoltaic panels, the absorption efficiency of light energy is the highest. However, in some related technologies, the photovoltaic panel array adopts a fixed structure, that is, the angle and direction of the photovoltaic panel are fixed, and it is impossible to adjust in real time according to the changes in the position of the sun to ensure that the light shines vertically on the panel.

[0005] In view of this, a new photovoltaic system solution is needed in the art to solve the above problems. Utility Model Content

[0006] The utility model aims to solve the above technical problem, that is, to solve the problem of low light energy conversion rate of existing photovoltaic power generation devices.

[0007] In a first aspect, the utility model provides a supporting device for a photovoltaic module, comprising:

[0008] A rotating mechanism having a mounting surface for mounting the photovoltaic assembly;

[0009] A light monitoring module, which is used to monitor the emission direction of light;

[0010] A controller is connected to the light monitoring module for communication, and the controller controls the rotation of the rotating mechanism according to the emission direction so that the angle formed by the emission direction and the mounting surface is within a preset range.

[0011] Optionally, the rotating mechanism comprises:

[0012] Vertical rotation axis;

[0013] The first angle sensor is used to monitor a first rotation angle of the vertical shaft. The first angle sensor is in communication with the controller. The controller controls the rotation of the vertical shaft according to the first rotation angle and the launching direction.

[0014] Optionally, the rotating mechanism further includes:

[0015] Horizontal axis;

[0016] The second angle sensor is used to monitor the second rotation angle of the horizontal rotation axis. The second angle sensor is in communication with the controller. The controller controls the rotation of the horizontal rotation axis according to the second rotation angle and the emission direction.

[0017] Optionally, the photovoltaic assembly includes a plurality of photovoltaic panels, and the supporting device further includes:

[0018] A folding assembly is connected to the rotating mechanism, and a plurality of photovoltaic panels are arranged on the folding assembly, so that the photovoltaic assembly has an unfolded state and a folded state driven by the folding assembly.

[0019] Optionally, the supporting device further comprises:

[0020] A wind speed monitoring module is used to monitor the wind speed value. The wind speed monitoring module is in communication connection with the controller, and the controller also controls the rotation of the rotating mechanism according to the wind speed value.

[0021] Optionally, the controller further controls the folding component to unfold or fold according to the wind speed value.

[0022] Optionally, the supporting device further comprises:

[0023] A limit sensor is arranged on the rotating mechanism, and the limit sensor is communicatively connected with the controller to enable the rotating mechanism to rotate within a preset angle.

[0024] Optionally, the supporting device further comprises:

[0025] The alarm module is in communication with the controller. When the supporting device fails, the controller controls the alarm module to issue an alarm prompt message.

[0026] In a second aspect, the utility model further provides a photovoltaic system, comprising:

[0027] Photovoltaic panels;

[0028] As in the supporting device for a photovoltaic assembly according to any one of the first aspects, the photovoltaic assembly is arranged on the mounting surface.

[0029] Optionally, the photovoltaic system further comprises:

[0030] A voltage monitoring module, which is in communication with the controller, and is used to monitor the output voltage of the photovoltaic assembly so that the output voltage is within a preset voltage range;

[0031] A current monitoring module is connected to the controller for communication, and is used to monitor the output current of the photovoltaic assembly so that the output current is within a preset current range.

[0032] The photovoltaic module support device of the utility model adopts a closed-loop control strategy so that the support device can automatically adjust the direction of the photovoltaic panel according to the position of the sun, so that the photovoltaic panel always maintains the best lighting angle, thereby improving the light energy absorption efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings, in which:

[0034] Figure 1 is a schematic structural diagram of the support device provided in this embodiment;

[0035] Figure 2 is a schematic diagram of the control structure of the support device provided in this embodiment;

[0036] Figure 3 yes Figure 2 Detailed structural diagram of the control structure;

[0037] Figure 4 Schematic diagram of the control strategy structure of the support device provided in this embodiment.

[0038] List of reference numerals:

[0039] 1-rotation mechanism, 11-first motor, 12-second motor, 13-vertical shaft, 14-horizontal shaft, 15-photovoltaic panel, 20-light monitoring module, 200-light incident angle setting value, 21-first angle sensor, 22-second angle sensor, 23-voltage monitoring module, 24-current monitoring module, 3-controller, 30-central processing unit, 31-first communication module, 32-second communication module, 33-third communication module, 34-digital input module, 35-analog input module, 36-digital output module, 4-folding component, 40-variable frequency motor, 41-frequency converter, 5-wind speed monitoring module, 6-limit sensor, 7-remote controller, 8-alarm module, 9-on-site start and stop module, 91-on-site start and stop button, 92-on-site emergency stop button, 93-on-site speed control button, 10-host computer. DETAILED DESCRIPTION

[0040] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not used to limit the protection scope of the present invention. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.

[0041] It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the relevant devices or components must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, ordinal numbers such as "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0042] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] Please refer to Figure 1-4 , is a supporting device for a photovoltaic module provided by the utility model. The supporting device includes a base and a rotating mechanism 1 arranged on the base, and a mounting surface is arranged on the rotating mechanism 1, and the mounting surface is used to mount a photovoltaic panel 15. The supporting device can also be understood as a sun tracking mechanism, which can automatically adjust the direction of the photovoltaic panel 15 according to the position of the sun, so that the photovoltaic panel 15 always maintains the best illumination angle, thereby improving the absorption efficiency of light energy.

[0044] like Figure 2 and 3 As shown, the supporting device further comprises a light monitoring module 20 and a controller 3, and the light monitoring module 20 is in communication connection with the controller 3. The light monitoring module 20 is used to monitor the emission direction of the light and transmit the signal to the controller 3.

[0045] In this embodiment, the emission direction of light can be understood as the angle at which the sunlight irradiates the installation surface or the photovoltaic panel 15 , which is hereinafter referred to as the light incident angle.

[0046] The controller 3 includes a central processor 30, which is connected to the remote controller 7 via a first communication module 31. The controller 3 also includes an analog input module 35 and a digital output module 36. The light monitoring module 20 is connected to the central processor 30 via the analog input module 35, and is connected to the rotating mechanism 1 via the digital output module 36.

[0047] Specifically, the light monitoring module 20 can use a solar tracking sensor, which is installed on the rotating mechanism 1. The working principle of the solar tracking sensor is to sense the position or direction of the sun and transmit the signal to the controller 3, so that the controller 3 controls the rotation of the rotating mechanism 1 according to the signal to ensure that the incident angle of light is within a preset range, thereby maximizing the energy conversion efficiency.

[0048] Furthermore, the operation of the supporting device includes the following steps. First, the longitude and latitude of the location of the supporting device are input on the host computer 10. Then, the light incident angle setting value 200 is set according to the movement trajectory of the sun at that location. The preset trajectory of the movement of the rotating mechanism 1 is set according to the value, and the preset trajectory is stored in the remote controller 7.

[0049] The controller 3 receives the start signal of the remote controller 7 in real time through the Profibus-DP protocol to activate the operation of the controller 3. At the same time, it receives the value of the preset trajectory sent by the remote controller 7 to control the action of the drive motor on the rotating mechanism 1 to adjust the motion trajectory of the rotating mechanism 1 so that the photovoltaic panel 15 on the installation surface can receive sunlight to the maximum extent.

[0050] The incident angle of light is greatly affected by natural conditions and weather. For example, due to factors such as the rotation and revolution of the earth and the refraction of the atmosphere, the incident angle of light will change. In addition, weather conditions such as cloud cover will also affect the exposure of sunlight.

[0051] Meanwhile, experiments show that the light energy absorption efficiency is highest when the light is irradiated vertically on the photovoltaic panel 15. Therefore, the preset angle range is preferably about 90°, for example, the preset angle range is between 85° and 95° to ensure that the photovoltaic panel 15 receives the sunlight at the best angle, thereby maximizing the light energy absorption efficiency.

[0052] Therefore, if the actual value of the light incident angle is within the allowable deviation range, the rotating mechanism 1 operates normally according to the preset trajectory; if the actual value of the light incident angle exceeds the allowable deviation range, the rotating mechanism 1 is controlled to rotate so that the photovoltaic panel 15 on the mounting surface can receive sunlight to the maximum extent and improve the light energy conversion efficiency.

[0053] It can be seen that the light monitoring module 20, as a part of the support device control system, provides real-time feedback to the control system, so that the system can timely adjust the orientation of the photovoltaic panel 15 according to the current position and angle of the sun, ensuring that the photovoltaic system can obtain the best solar energy utilization effect at any time.

[0054] In one embodiment, if Figure 1-3 As shown, the rotating mechanism 1 includes a first motor 11 and a vertical rotating shaft 13. The central processor 30 controls the first motor 11 through a digital output module 36, thereby driving the vertical rotating shaft 13 to rotate the photovoltaic panel 15 in a horizontal direction.

[0055] In addition, a first angle sensor 21 is installed on the vertical shaft 13 to monitor the first rotation angle of the vertical shaft 13 and transmit this information to the central processor 30 through the analog input module 35. The central processor 30 controls the rotation of the vertical shaft 13 accordingly so that the photovoltaic panel 15 can be perpendicular to the irradiation direction of the sunlight.

[0056] In one embodiment, the rotating mechanism 1 includes a second motor 12 and a horizontal rotating shaft 14, wherein the horizontal rotating shaft 14 is disposed at one end of the vertical rotating shaft 13, and the horizontal rotating shaft 14 cooperates with the vertical rotating shaft 13 so that the rotating mechanism 1 has two rotation axes, i.e., degrees of freedom in two directions. The central processing unit 30 controls the second motor 12 through the digital output module 36, thereby driving the horizontal rotating shaft 14, so that the photovoltaic panel 15 performs a pitch motion.

[0057] Similar to the vertical shaft 13, the horizontal shaft 14 is also equipped with a second angle sensor 22 for monitoring the second rotation angle of the horizontal shaft 14 and transmitting this information to the central processor 30 through the analog input module 35. The central processor 30 controls the rotation of the horizontal shaft 14 accordingly, so that the photovoltaic panel 15 can be perpendicular to the irradiation direction of the sunlight.

[0058] In summary, the rotating mechanism 1 provided in this embodiment includes two rotating axes, which is a dual-axis tracking mechanism. The dual-axis tracking mechanism enables the photovoltaic panel 15 to be adjusted in both horizontal and vertical directions, thereby ensuring that the panel absorbs as much energy as possible and maximizing the utilization efficiency of solar energy.

[0059] Furthermore, if Figure 2 and 3As shown, the central processor 30 is also connected to the host computer 10 through the second communication module 32, and communicates with the host computer 10 using the Modbus TCP / IP protocol. Through this communication method, the central processor 30 can transmit the operating status of the system and various sensor signals to the host computer 10, and the host computer 10 displays this information. In addition, the on-site operator can also operate on the host computer 10.

[0060] In summary, it can be seen that the supporting device provided in this embodiment adopts a closed-loop control strategy.

[0061] Specifically, if Figure 4 As shown, the control system monitors the incident angle of sunlight in real time through the light monitoring module 20, monitors the rotation angle of the rotating mechanism 1 in real time through the first angle sensor 21 and the second angle sensor 22, and compares the two with the light incident angle setting value 200. The controller 3 adjusts the rotation of the rotating mechanism 1 according to the error signal to ensure that the photovoltaic panel 15 is maintained at the optimal tilt angle so that the sunlight shines vertically on the photovoltaic panel 15. This closed-loop control strategy enables the system to respond to changing lighting conditions in real time, ensuring that the photovoltaic panel 15 is always in the best working state, thereby improving the power generation efficiency.

[0062] In one embodiment, the support device further comprises a folding assembly 4, which is connected to the horizontal shaft 14. The photovoltaic assembly is composed of a plurality of photovoltaic panels 15, which are arranged on the folding assembly 4, so that the photovoltaic assembly can realize an unfolded state and a folded state under the drive of the folding assembly 4.

[0063] The folding assembly 4 may be a pull-out folding assembly 4 or a center folding assembly (not shown). The pull-out folding assembly 4 folds or unfolds the plurality of photovoltaic panels 15 by pulling or sliding. This design is simple and easy to use and is suitable for smaller-scale photovoltaic systems. In this embodiment, the pull-out sliding structure is preferred.

[0064] The center folding mechanism folds through the center point, which can more effectively manage the folding and unfolding of large photovoltaic modules and improve the stability and reliability of the system. Both structural forms can realize the folding and unfolding of photovoltaic modules, and the appropriate structural form can be selected according to actual needs.

[0065] The folding component 4 can unfold the photovoltaic component when needed, and can also fold the photovoltaic component when solar energy conversion is not needed or the weather is bad, so as to save space or protect the photovoltaic component.

[0066] Furthermore, if Figure 3As shown, the folding assembly 4 further includes a frequency converter 41 and a variable frequency motor 40, and the frequency converter 41 and the variable frequency motor 40 are electrically connected. The frequency converter 41 is connected to the central processing unit 30 through the third communication module 33, and communicates with the third communication module 33 using the MPI protocol. Through this communication method, the frequency converter 41 can transmit the operating state of the folding assembly 4 to the central processing unit 30, and at the same time, the central processing unit 30 accurately controls the folding assembly according to its operating state.

[0067] In one embodiment, if Figure 2 and 3 As shown, the support device also includes an on-site start-stop module 9, which is in communication with the controller 3. Figure 3 As shown, the on-site start-stop module 9 is composed of an on-site start-stop button 91, an on-site emergency stop button 92, and an on-site speed adjustment button 93. The on-site start-stop button 91 and the on-site emergency stop button 92 are connected to the central processor 30 through the digital input module 34, and the on-site speed adjustment button 93 is connected to the central processor 30 through the analog input module 35.

[0068] The on-site start-stop button 91 is used to start or stop the operation of the support device, making the operation more convenient and quick. In an emergency, the on-site operator can immediately press the on-site emergency stop button 92 to achieve emergency stop to ensure the safety of equipment and personnel. The on-site speed adjustment button 93 is used to adjust the operating speed of the folding component 4, thereby controlling the recovery speed of the photovoltaic panel 15.

[0069] By setting the on-site start-stop module 9, the user can flexibly adjust the operating state of the supporting device according to actual conditions, and at the same time, the accuracy and safety of the operation can be improved.

[0070] In one embodiment, the support device further includes a wind speed monitoring module 5, which is used to monitor the wind speed value. The wind speed monitoring module 5 is connected to the central processor 30 through the analog input module 35 to transmit the monitored wind speed value to the controller 3. The controller 3 controls the rotation of the rotating mechanism 1 according to the received wind speed value.

[0071] In one embodiment, the support device further comprises an alarm module 8, which is in communication with the central processor 30 via the digital output module 36. When a failure occurs in the support device, the central processor 30 will send an alarm prompt message via the alarm module 8.

[0072] The alarm module 8 includes an audible and visual alarm (not shown in the figure), which can remind relevant personnel that there is a problem with the device so that they can take necessary measures in time to repair or handle the failure of the supporting device to ensure the normal operation and safety of the system.

[0073] For example, when the wind speed exceeds the set threshold for a long time, the controller 3 will send an alarm signal and activate the sound and light alarm to remind relevant personnel to pay attention to potential risks. In addition, when the incident angle of light exceeds the deviation range, the controller 3 will also send an alarm signal and trigger the sound and light alarm.

[0074] Further, in the case of an alarm, the controller 3 will drive the folding assembly 4 to recycle the photovoltaic panel 15 into the recycling box and stop the system to protect the safety of the equipment. Once the wind speed returns to normal, the controller 3 will control the system to automatically reset and resume normal operation.

[0075] In this embodiment, the wind speed is monitored by the wind speed monitoring module 5 and the data is transmitted to the controller 3, so that the system can adjust the speed of the rotating mechanism 1 or the folding assembly 4 or stop its rotation in real time to counter possible risks. This ensures the safe operation of the folding assembly 4 under various weather conditions, prolongs the service life of the equipment, and improves the stability and safety of the system.

[0076] Through the alarm module 8, the staff or maintenance personnel can immediately know the abnormal situation of the supporting device and go to the site for inspection or repair in time, so as to ensure the normal operation of the system and extend the service life of the equipment.

[0077] In one embodiment, the support device further includes a limit sensor 6, which is disposed on the rotating mechanism 1. The limit sensor 6 is communicatively connected to the central processor 30 via a digital input module 34, so that the rotating mechanism 1 rotates within a preset angle.

[0078] Specifically, when the rotating mechanism 1 reaches the set maximum angle limit, the limit sensor 6 sends a signal to the central processor 30 through the digital input module 34. The central processor 30 controls the rotating mechanism 1 to stop rotating through the digital output module 36 to avoid damage or other safety hazards. This design effectively ensures the stability and safety of the system and ensures that it operates normally within the specified range.

[0079] In a preferred embodiment, there are four limit sensors 6, corresponding to the four directions of east, south, west and north. In this way, the system can effectively monitor and control the rotation amplitude of the rotating mechanism 1 in various directions. This design enables the rotation amplitude of the rotating mechanism 1 in different directions to be effectively monitored, thereby avoiding the situation where the rotation amplitude is too large and may damage the photovoltaic module.

[0080] Furthermore, when the rotating mechanism 1 reaches the limit position, the limit sensor 6 transmits the signal to the central processor 30, and the central processor 30 controls the rotating mechanism 1 to run in the reverse direction for 5 seconds and then stop.

[0081] For example, when the rotating mechanism 1 moves northward, the central processor 30 will receive the signal of the north limit sensor 6 in real time. Once the north limit is reached, the central processor 30 will send an alarm signal to the remote controller 7, the sound and light alarm will be activated, and the northward movement will be stopped immediately. Then, the remote controller 7 will instruct the rotating mechanism 1 to stop after running southward for 5 seconds. At the same time, the central processor 30 also transmits the detection signal to the remote controller 7 and the host computer 10 through the Profibus-DP and Modbus TCP / IP protocols respectively. The operation in other directions also follows a similar process.

[0082] The control strategy of reverse operation can eliminate the possible stuck situation of the rotating mechanism 1 and ensure its normal operation. In addition, reverse operation after reaching the limit position can also protect the system from overload or overpressure, increasing the reliability and safety of the equipment.

[0083] The utility model also provides a photovoltaic system, including a photovoltaic component and a supporting device for the above-mentioned photovoltaic component, the photovoltaic component includes a plurality of photovoltaic panels 15, the photovoltaic panels 15 are arranged on a mounting surface, and the rotation angle of the rotating mechanism 1 can be adjusted according to the incident angle of sunlight under the drive of the rotating mechanism 1, so that the photovoltaic panels 15 can obtain the best lighting angle, thereby maximizing the energy collection efficiency.

[0084] In one embodiment, the photovoltaic system further includes a voltage monitoring module 23 and a current monitoring module 24 , both of which are communicatively connected to the central processor 30 via an analog input module 35 .

[0085] The voltage monitoring module 23 is used to monitor the output voltage of the photovoltaic module to ensure that the output voltage is within a preset voltage range, while the current monitoring module 24 is used to monitor the output current of the photovoltaic module to maintain the output current within a preset current range.

[0086] In this way, by monitoring and adjusting the output voltage and current of the PV modules, the PV system can be kept in the best working state, improve the energy collection efficiency and ensure the safe and stable operation of the system.

[0087] Specifically, the voltage monitoring module 23 and the current monitoring module 24 are voltage sensors and current sensors respectively. The controller 3 receives the signals of the two sensors in real time, and transmits the detection signals to the remote controller 7 and the host computer 10 through the Profibus-DP protocol and the Modbus TCP / IP protocol. When the current value or voltage value output by the photovoltaic panel 15 exceeds the system setting value, the controller 3 will send an alarm signal to the remote controller 7, and make the sound and light alarm flash, and stop the system at the same time. This real-time monitoring and alarm mechanism improves the safety and reliability of the operation of the photovoltaic system.

[0088] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A photovoltaic module support device, characterized in that: include: A rotating mechanism having a mounting surface for mounting the photovoltaic assembly; A light monitoring module, which is used to monitor the emission direction of light; A controller is connected to the light monitoring module for communication, and the controller controls the rotation of the rotating mechanism according to the emission direction so that the angle formed by the emission direction and the mounting surface is within a preset range.

2. The photovoltaic module support device according to claim 1, characterized in that: The rotating mechanism comprises: Vertical rotation axis; The first angle sensor is used to monitor a first rotation angle of the vertical shaft. The first angle sensor is in communication with the controller. The controller controls the rotation of the vertical shaft according to the first rotation angle and the launching direction.

3. The photovoltaic module support device according to claim 2, characterized in that: The rotating mechanism also includes: Horizontal axis; The second angle sensor is used to monitor the second rotation angle of the horizontal rotation axis. The second angle sensor is in communication with the controller. The controller controls the rotation of the horizontal rotation axis according to the second rotation angle and the emission direction.

4. The photovoltaic module support device according to claim 1, characterized in that: The photovoltaic assembly includes a plurality of photovoltaic panels, and the supporting device also includes: A folding assembly is connected to the rotating mechanism, and a plurality of photovoltaic panels are arranged on the folding assembly, so that the photovoltaic assembly has an unfolded state and a folded state driven by the folding assembly.

5. The photovoltaic module support device according to claim 4, characterized in that: The supporting device also includes: A wind speed monitoring module is used to monitor the wind speed value. The wind speed monitoring module is in communication connection with the controller, and the controller also controls the rotation of the rotating mechanism according to the wind speed value.

6. The photovoltaic module support device according to claim 5, characterized in that: The controller also controls the folding component to unfold or fold according to the wind speed value.

7. The photovoltaic module support device according to claim 1, characterized in that: The supporting device also includes: A limit sensor is arranged on the rotating mechanism, and the limit sensor is communicatively connected with the controller to enable the rotating mechanism to rotate within a preset angle.

8. The photovoltaic assembly support device according to any one of claims 1 to 7, characterized in that: The supporting device also includes: The alarm module is in communication with the controller. When the supporting device fails, the controller controls the alarm module to issue an alarm prompt message.

9. A photovoltaic system, characterized in that: include: Photovoltaic panels; The photovoltaic assembly support device according to any one of claims 1 to 8, wherein the photovoltaic assembly is arranged on the mounting surface.

10. The photovoltaic system according to claim 9, characterized in that: The photovoltaic system further comprises: A voltage monitoring module, which is in communication with the controller, and is used to monitor the output voltage of the photovoltaic assembly so that the output voltage is within a preset voltage range; A current monitoring module is connected to the controller for communication, and is used to monitor the output current of the photovoltaic assembly so that the output current is within a preset current range.

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