Photovoltaic power generation system and control method

Abstract

The present application relates to the field of photovoltaic power generation technology, and in particular to a photovoltaic power generation system and control method. The photovoltaic power generation system includes a detection component, a controller, a support component, a rotating structure, at least one telescopic structure and a plurality of photovoltaic panels. The rotating structure includes a first rotating component and a second rotating component. The detection component is used to detect temperature and humidity, wind speed, solar altitude and solar angle; the controller controls the first rotating component to drive the second rotating component, the telescopic structure and the photovoltaic panel to rotate according to the solar altitude and the solar angle to adjust the azimuth of the photovoltaic panel, and controls the second rotating component to drive the telescopic structure and the photovoltaic panel to rotate to adjust the inclination angle of the photovoltaic panel; when one of the wind speed and the temperature and humidity exceeds the corresponding preset range, the controller controls the telescopic structure to drive two adjacent photovoltaic panels to fold each other. The photovoltaic power generation system and control method of the present application can not only increase the power generation of the photovoltaic panel, but also protect the photovoltaic panel.

Description

Technical Field

[0001] The present application relates to the field of photovoltaic power generation technology, and in particular to a photovoltaic power generation system and a control method. Background Art

[0002] The photovoltaic support structure is the skeleton that supports photovoltaic modules and is an important component of the photovoltaic power generation system. It mainly includes two types: fixed support and tracking support.

[0003] In the prior art, the tracking bracket can automatically adjust its working angle so that the photovoltaic panels installed on the bracket can capture the incident solar energy to the maximum extent, thereby increasing the amount of solar radiation received by the photovoltaic panels and improving the overall power generation.

[0004] However, existing tracking brackets can only adjust the working angle of photovoltaic panels and cannot protect photovoltaic panels when encountering heavy rainfall or other extreme weather conditions. Summary of the invention

[0005] The present application provides a photovoltaic power generation system and a control method, which can not only improve the power generation of photovoltaic panels, but also protect the photovoltaic panels.

[0006] In a first aspect, the photovoltaic power generation system provided by the present application includes a detection component, a controller, a support component, a rotating structure, at least one telescopic structure and a plurality of photovoltaic panels, wherein the support component is used to connect to the ground.

[0007] The rotating structure includes a first rotating assembly and a second rotating assembly. The second rotating assembly is rotatably connected to the supporting assembly through the first rotating assembly. The telescopic structure is arranged on the second rotating assembly. The telescopic structure is used to support multiple photovoltaic panels in sequence.

[0008] The first rotating assembly, the second rotating assembly, the telescopic structure and the detection assembly are all electrically connected to the controller, and the detection assembly is used to detect temperature and humidity, wind speed, sun altitude and sun angle.

[0009] The controller controls the first rotating component to drive the second rotating component, the telescopic structure and the photovoltaic panel to rotate according to the sun's altitude and sun angle to adjust the azimuth of the photovoltaic panel, and controls the second rotating component to drive the telescopic structure and the photovoltaic panel to rotate to adjust the inclination angle of the photovoltaic panel.

[0010] When one of the wind speed and the temperature and humidity exceeds a corresponding preset range, the controller controls the telescopic structure to drive two adjacent photovoltaic panels to fold toward each other.

[0011] In a possible implementation, the photovoltaic power generation system provided by the present application, the telescopic structure includes a driving component, a telescopic component and two slide rails, the slide rails are arranged on the second rotating component, and the two slide rails are arranged opposite to each other.

[0012] The driving assembly comprises two first driving members arranged at intervals in the vertical direction. The first driving member is arranged between the two slide rails, and the ends of the first driving members are correspondingly connected to the slide rails in a sliding manner.

[0013] The two first driving members are both connected to the telescopic assembly, which is constructed to extend to drive the two adjacent photovoltaic panels to unfold when the two first driving members approach each other, and to contract to drive the two adjacent photovoltaic panels to fold together when the two first driving members move away from each other.

[0014] In a possible implementation, the photovoltaic power generation system provided by the present application, the telescopic assembly includes a pair of first telescopic members and a pair of second telescopic members, the pair of first telescopic members are symmetrically arranged in the horizontal direction, and are both connected to the same one of the two first driving members.

[0015] The second telescopic member is wavy in shape, and the paired second telescopic members are used to jointly support multiple photovoltaic panels in sequence. One side of the second telescopic member is correspondingly connected to the first telescopic member, and the end of the second telescopic member is connected to the other of the two first driving members. The first driving member drives the second telescopic member to extend or contract through the first telescopic member.

[0016] In a possible implementation, the photovoltaic power generation system provided by the present application, the support assembly includes a support plate and at least three support columns, and the support columns are used to connect to the ground.

[0017] The support plate is arranged on the top of the support column, and the first rotating assembly is arranged on the support plate.

[0018] In one possible implementation, the photovoltaic power generation system provided by the present application, the first rotating component includes a second driving member and a transmission rod, one end of the transmission rod is rotatably connected to the support plate through the second driving member, and the other end of the transmission rod is connected to the second rotating component, and the second driving member drives the second rotating component, the telescopic structure and the photovoltaic panel to rotate relative to the support plate through the transmission rod to adjust the azimuth angle of the photovoltaic panel.

[0019] In a possible implementation, in the photovoltaic power generation system provided by the present application, the second rotating assembly includes a fixed plate, a movable plate, a third driving member and a folding member.

[0020] The fixed plate and the movable plate are arranged opposite to each other, the third driving member and the folding member are arranged between the fixed plate and the movable plate, and are both connected to the fixed plate and the movable plate, the side of the fixed plate away from the movable plate is connected to the transmission rod, and the slide rail is connected to the side of the movable plate away from the fixed plate.

[0021] The folding member is constructed to be partially folded or unfolded when the third driving member drives the movable plate to rise and fall relative to the fixed plate, so that the movable plate drives the telescopic structure and the photovoltaic panel to rotate relative to the fixed plate to adjust the inclination angle of the photovoltaic panel.

[0022] In one possible implementation, the photovoltaic power generation system provided by the present application also includes a cleaning component, which includes a liquid storage component and a conveying component, the conveying component is connected to the liquid storage component, the liquid storage component is arranged on the support component, the liquid storage component is used to store the cleaning liquid, and the conveying component is used to convey the cleaning liquid to the photovoltaic panel to clean the photovoltaic panel.

[0023] In a possible implementation, in the photovoltaic power generation system provided by the present application, the second telescopic member is a telescopic tube, and a plurality of water outlets are provided on the telescopic tube.

[0024] The liquid storage part is connected to the telescopic tube through the conveying part, the conveying part is communicated with the telescopic tube, and the cleaning liquid is sequentially conveyed to the photovoltaic panel through the conveying part, the telescopic tube and the water outlet.

[0025] In a possible implementation, the photovoltaic power generation system provided by the present application, the detection component includes a temperature and humidity sensor, a wind speed sensor, and a sun position sensor.

[0026] The temperature and humidity sensors are used to detect the temperature and humidity in the photovoltaic plant area, the wind speed sensor is used to detect the wind speed in the photovoltaic plant area, and the sun position sensor is used to detect the sun's altitude and sun angle.

[0027] In a second aspect, the control method of the photovoltaic power generation system provided in the present application adopts any photovoltaic power generation system provided in the first aspect above, and the control method of the photovoltaic power generation system includes:

[0028] Detects sun altitude and sun angle.

[0029] According to the sun's altitude and sun's angle, the first rotating component of the photovoltaic power generation system is controlled to drive the second rotating component, the telescopic structure and the photovoltaic panel to rotate to adjust the azimuth angle of the photovoltaic panel; and the second rotating component is controlled to drive the telescopic structure and the photovoltaic panel to rotate to adjust the inclination angle of the photovoltaic panel.

[0030] Detect wind speed, temperature and humidity.

[0031] When one of the wind speed and the temperature and humidity exceeds the corresponding preset range, the telescopic structure is controlled to drive two adjacent photovoltaic panels to fold each other.

[0032] The photovoltaic power generation system and control method provided by the present application are formed by setting a detection component, a controller, a support component, a rotating structure, at least one telescopic structure and a plurality of photovoltaic panels to form a photovoltaic power generation system, and the support component is used to connect to the ground. The first rotating component and the second rotating component are set to form a rotating structure, the second rotating component is rotatably connected to the support component through the first rotating component, the telescopic structure is arranged on the second rotating component, and the telescopic structure is used to support a plurality of photovoltaic panels in sequence. The first rotating component, the second rotating component, the telescopic structure and the detection component are all electrically connected to the controller, and the detection component is used to detect temperature and humidity, wind speed, solar altitude and solar angle. The controller calculates the azimuth and inclination angle of the photovoltaic panel according to the solar altitude and solar angle, and controls the first rotating component to drive the second rotating component, the telescopic structure and the photovoltaic panel to rotate to adjust the azimuth of the photovoltaic panel, and controls the second rotating component to drive the telescopic structure and the photovoltaic panel to rotate to adjust the inclination angle of the photovoltaic panel to increase the power generation of the photovoltaic panel. When the wind speed is greater than a preset range, the temperature is less than a preset range or the humidity is greater than a preset range, the controller can control the telescopic structure to drive two adjacent photovoltaic panels to fold each other to protect the photovoltaic panel. Therefore, the photovoltaic power generation system can not only improve the power generation of the photovoltaic panels, but also protect the photovoltaic panels. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0034] Figure 1 A partial structural schematic diagram of a photovoltaic power generation system provided in an embodiment of the present application;

[0035] Figure 2 for Figure 1 Structural schematic diagram of the telescopic structure and photovoltaic panels;

[0036] Figure 3 for Figure 2 A schematic diagram of the structure from another angle;

[0037] Figure 4 for Figure 1 A schematic diagram of the structure of the middle support assembly and the first rotating assembly;

[0038] Figure 5 for Figure 1 A schematic structural diagram of the second rotating assembly;

[0039] Figure 6 for Figure 1 A schematic diagram of the structure of the cleaning component;

[0040] Figure 7 A flow chart of a control method for a photovoltaic power generation system provided in an embodiment of the present application;

[0041] Figure 8 A diagram showing the variation of the theoretical azimuth angle and the adjusted azimuth angle of the photovoltaic power generation system provided in an embodiment of the present application;

[0042] Fig. 9 A diagram showing the variation of the theoretical tilt angle and the adjusted tilt angle of the photovoltaic power generation system provided in an embodiment of the present application;

[0043] Fig.10 A schematic diagram of the connections of the various parts of the photovoltaic power generation system provided in an embodiment of the present application.

[0044] Description of reference numerals:

[0045] 100-support assembly;

[0046] 110-support plate;

[0047] 120-support column;

[0048] 130-embedded parts;

[0049] 200-rotating structure;

[0050] 210 - first rotating assembly; 211 - second driving member; 212 - transmission rod;

[0051] 220 - second rotating assembly; 221 - fixed plate; 222 - movable plate; 223 - third driving member; 224 - folding member;

[0052] 300- telescopic structure;

[0053] 310-driving assembly; 311-first driving member; 312-hydraulic pump;

[0054] 320- telescopic assembly; 321- first telescopic member; 322- second telescopic member;

[0055] 330-slide rail;

[0056] 400-Photovoltaic panels;

[0057] 500-cleaning components;

[0058] 510-liquid storage part; 520-transport part;

[0059] 600-controller;

[0060] 700- detection component; 710- temperature and humidity sensor; 720- wind speed sensor; 730- sun position sensor;

[0061] 800-protection component; 810-self-test component; 820-protection component;

[0062] 900-Power supply device for the whole machine.

[0063] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0064] First, those skilled in the art should understand that these implementations are only used to explain the technical principles of the present application and are not intended to limit the scope of protection of the present application. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.

[0065] Secondly, it should be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, or it can be an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0066] Then, it should be noted that, in the description of the present application, the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0067] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0068] Mountainous and hilly areas usually have abundant light resources and high solar radiation intensity, which can provide sufficient energy sources for photovoltaic power generation. Therefore, photovoltaic modules are usually installed in areas with complex geographical environments such as mountains and hills. However, the undulating terrain, high slopes and large vertical drops in mountains and hills bring great challenges to the installation of photovoltaic modules, affecting the installation progress, and also bring great difficulties to the subsequent daily inspections and maintenance, reducing the power generation efficiency.

[0069] As shown in the background technology, the photovoltaic support structure is the skeleton that supports the photovoltaic modules and is an important component of the photovoltaic power generation system. It mainly includes two types: fixed support and tracking support.

[0070] In the prior art, the tracking bracket can automatically adjust its working angle so that the photovoltaic panels installed on the bracket can capture the incident solar energy to the maximum extent, thereby increasing the amount of solar radiation received by the photovoltaic panels and improving the overall power generation. However, the existing tracking bracket can only adjust the working angle of the photovoltaic panels, and cannot protect the photovoltaic panels when there is excessive rainfall or other extreme weather.

[0071] Based on this, the photovoltaic power generation system and control method provided by the present application are formed by setting a detection component, a controller, a support component, a rotating structure, at least one telescopic structure and a plurality of photovoltaic panels to form a photovoltaic power generation system, and the support component is used to connect to the ground. The first rotating component and the second rotating component are set to form a rotating structure, the second rotating component is rotatably connected to the support component through the first rotating component, the telescopic structure is arranged on the second rotating component, and the telescopic structure is used to support a plurality of photovoltaic panels in sequence. The first rotating component, the second rotating component, the telescopic structure and the detection component are all electrically connected to the controller, and the detection component is used to detect temperature and humidity, wind speed, solar altitude and solar angle. The controller calculates the azimuth and inclination angle of the photovoltaic panel according to the solar altitude and the solar angle, and controls the first rotating component to drive the second rotating component, the telescopic structure and the photovoltaic panel to rotate to adjust the azimuth of the photovoltaic panel, and controls the second rotating component to drive the telescopic structure and the photovoltaic panel to rotate to adjust the inclination angle of the photovoltaic panel to increase the power generation of the photovoltaic panel. When the wind speed is greater than the preset range, the temperature is less than the preset range or the humidity is greater than the preset range, the controller can control the telescopic structure to drive two adjacent photovoltaic panels to fold each other to protect the photovoltaic panel. Therefore, the photovoltaic power generation system can not only improve the power generation of the photovoltaic panels, but also protect the photovoltaic panels.

[0072] In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below in conjunction with the drawings in the preferred embodiments of the present application. In the drawings, the same or similar reference numerals throughout represent the same or similar parts or parts with the same or similar functions. The described embodiments are part of the embodiments of the present application, not all of the embodiments. The embodiments described below with reference to the drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0073] Reference Figure 1 As shown, the photovoltaic power generation system provided by the present application includes a detection component 700, a controller 600, a support component 100, a rotating structure 200, at least one telescopic structure 300 and a plurality of photovoltaic panels 400, and the support component 100 is used to connect to the ground.

[0074] The rotating structure 200 includes a first rotating assembly 210 and a second rotating assembly 220. The second rotating assembly 220 is rotatably connected to the supporting assembly 100 via the first rotating assembly 210. The telescopic structure 300 is disposed on the second rotating assembly 220. The telescopic structure 300 is used to sequentially support a plurality of photovoltaic panels 400.

[0075] The first rotating assembly 210, the second rotating assembly 220, the telescopic structure 300 and the detection assembly 700 are all electrically connected to the controller 600. The detection assembly 700 is used to detect temperature and humidity, wind speed, sun altitude and sun angle.

[0076] The controller 600 controls the first rotating component 210 to drive the second rotating component 220, the telescopic structure 300 and the photovoltaic panel 400 to rotate according to the solar altitude and the solar angle to adjust the azimuth angle of the photovoltaic panel 400, and controls the second rotating component 220 to drive the telescopic structure 300 and the photovoltaic panel 400 to rotate to adjust the inclination angle of the photovoltaic panel 400.

[0077] When one of the wind speed and the temperature and humidity exceeds the corresponding preset range, the controller 600 controls the telescopic structure 300 to drive two adjacent photovoltaic panels 400 to fold toward each other.

[0078] In a specific implementation, the first rotating assembly 210, the second rotating assembly 220 and the telescopic structure 300 can all be prefabricated in a factory and directly assembled after being transported to the site, thereby improving installation efficiency.

[0079] At least one telescopic structure 300. For example, the telescopic structure 300 may be one, two or more. When there are two telescopic structures 300, the two telescopic structures 300 may be symmetrically arranged on the second rotating assembly 220. The present application does not impose too many restrictions on this.

[0080] It can be understood that the second rotating component 220 is rotatably connected to the supporting component 100 through the first rotating component 210, and the telescopic structure 300 is arranged on the second rotating component 220. The telescopic structure 300 is used to support multiple photovoltaic panels 400 in sequence. When the first rotating component 210 rotates relative to the supporting component 100, the first rotating component 210 can drive the second rotating component 220, the telescopic structure 300 and the photovoltaic panel 400 arranged thereon to rotate synchronously. When the second rotating component 220 rotates relative to the first rotating component 210, the second rotating component 220 can drive the telescopic structure 300 and the photovoltaic panel 400 arranged thereon to rotate synchronously.

[0081] The first rotating component 210, the second rotating component 220, the telescopic structure 300 and the detection component 700 are all electrically connected to the controller 600, so that the detection component 700 can transmit the detected information such as temperature and humidity, wind speed, sun altitude and sun angle to the controller 600, and the controller 600 controls the first rotating component 210, the second rotating component 220 and the telescopic structure 300 in turn according to the sun altitude, sun angle, temperature and humidity and wind speed.

[0082] One of the temperature, humidity and wind speed detected by the detection component 700 exceeds a preset range, which includes a first preset range, a second preset range and a third preset range. The first preset range is a preset range for temperature, the second preset range is a preset range for humidity, and the third preset range is a preset range for wind speed. When the temperature is lower than the first preset range, freezing weather may occur; when the humidity is higher than the second preset range, excessive rainfall may occur; when the wind speed is higher than the third preset range, excessive wind volume may occur. The controller 600 can control the telescopic structure 300 to drive two adjacent photovoltaic panels 400 to fold against each other to protect the photovoltaic panels 400.

[0083] It should also be noted that the azimuth of the photovoltaic panel 400 refers to the angle between the surface normal direction of the photovoltaic panel 400 and the south direction. The azimuth of the photovoltaic panel 400 can affect the power generation efficiency of the photovoltaic panel 400. A suitable azimuth can make greater use of solar energy, improve the efficiency of solar energy conversion, and increase the power generation of the photovoltaic panel 400. Irradiance is the radiation flux per unit area of ​​the illuminated surface. At a certain moment, the azimuth of the photovoltaic panel 400 maximizes the irradiance received by the photovoltaic panel 400 and maximizes the power generation. This azimuth is a theoretical azimuth, that is, the azimuth calculated by the controller 600 based on the sun's altitude and sun's angle.

[0084] The tilt angle of the photovoltaic panel 400 refers to the angle between the photovoltaic panel 400 and the horizontal plane. The tilt angle of the photovoltaic panel 400 will directly affect the amount of solar radiation received by the photovoltaic panel 400, thereby affecting the power generation efficiency of the photovoltaic power generation system. When the photovoltaic panel 400 is placed horizontally, the tilt angle of the photovoltaic panel 400 is 0 degrees. When the photovoltaic panel 400 assembly is placed vertically, the tilt angle of the photovoltaic panel 400 is 90 degrees. At a certain moment, the tilt angle of the photovoltaic panel 400 makes the irradiance received by the photovoltaic panel 400 maximum and the power generation power maximum. This tilt angle is the theoretical tilt angle, that is, the tilt angle calculated by the controller 600 according to the sun's altitude and sun angle.

[0085] Specifically, refer to Figure 1 As shown, the detection component 700 detects temperature and humidity, wind speed, solar altitude and solar angle, and transmits them to the controller 600. The controller 600 calculates the azimuth and tilt angle of the photovoltaic panel 400 according to the solar altitude and solar angle, that is, the theoretical azimuth and theoretical tilt angle, and controls the first rotating component 210 to drive the second rotating component 220, the telescopic structure 300 and the photovoltaic panel 400 to rotate to adjust the azimuth of the photovoltaic panel 400, and controls the second rotating component 220 to drive the telescopic structure 300 and the photovoltaic panel 400 to rotate to adjust the tilt angle of the photovoltaic panel 400 to increase the power generation of the photovoltaic panel 400. The controller 600 determines whether the wind speed and the temperature and humidity correspond to the preset range. When the wind speed is greater than the first preset range, the temperature is less than the second preset range or the humidity is greater than the third preset range, the telescopic structure 300 drives two adjacent photovoltaic panels 400 to fold each other to protect the photovoltaic panel 400. Therefore, the photovoltaic power generation system can not only adjust the working angle of the photovoltaic panel 400 to increase the power generation of the photovoltaic panel 400, but also protect the photovoltaic panel 400, thereby saving manpower and reducing operation and maintenance costs.

[0086] Reference Figures 1 to 3 As shown, in some embodiments, the telescopic structure 300 includes a driving assembly 310, a telescopic assembly 320 and two slide rails 330. The slide rails 330 are disposed on the second rotating assembly 220, and the two slide rails 330 are disposed opposite to each other.

[0087] The driving assembly 310 includes two first driving members 311 spaced apart in the vertical direction. The first driving member 311 is disposed between two slide rails 330 , and ends of the first driving member 311 are correspondingly slidably connected to the slide rails 330 .

[0088] The two first driving members 311 are both connected to the telescopic assembly 320, and the telescopic assembly 320 is constructed to extend to drive the two adjacent photovoltaic panels 400 to unfold each other when the two first driving members 311 approach each other, and to contract to drive the two adjacent photovoltaic panels 400 to fold each other when the two first driving members 311 move away from each other.

[0089] The end of the first driving member 311 is slidably connected to the slide rail 330. For example, a slide groove can be set on the slide rail 330, and the extension direction of the slide groove is consistent with the extension direction of the slide rail 330. Both are set in the vertical direction. The first driving member 311 is slidably connected to the slide rail 330 through the slide groove, so that the two first driving members 311 can move in the vertical direction to approach or move away from each other.

[0090] Specifically, refer to Figure 2 As shown in FIG. 1 , when the two first driving members 311 are close to each other, the two first driving members 311 are in Figure 2 As shown by the middle arrow, the distance in the Y direction becomes smaller. Since the two first driving members 311 are connected to the telescopic assembly 320, the first driving member 311 drives the telescopic assembly 320 to reduce its height in the Y direction and increase its length in the X direction, that is, the telescopic assembly 320 extends, thereby driving the two adjacent photovoltaic panels 400 to expand relative to each other along the X direction.

[0091] When the two first driving members 311 move away from each other, the two first driving members 311 are Figure 2 As shown by the middle arrow, the distance in the Y direction increases. Since the two first driving members 311 are connected to the telescopic assembly 320, the first driving member 311 drives the telescopic assembly 320 to increase in height in the Y direction and decrease in length in the X direction, that is, the telescopic assembly 320 contracts, thereby driving the two adjacent photovoltaic panels 400 to fold against each other along the X direction.

[0092] Reference Figure 2 and Figure 3 As shown, in some embodiments, the telescopic assembly 320 includes a pair of first telescopic members 321 and a pair of second telescopic members 322 . The pair of first telescopic members 321 are symmetrically arranged along the horizontal direction and are both connected to the same one of the two first driving members 311 .

[0093] The second telescopic member 322 is wavy in shape. The paired second telescopic members 322 are used to jointly support multiple photovoltaic panels 400 in sequence. One side of the second telescopic member 322 is correspondingly connected to the first telescopic member 321, and the end of the second telescopic member 322 is connected to the other of the two first driving members 311. The first driving member 311 drives the second telescopic member 322 to extend or contract through the first telescopic member 321.

[0094] It should be noted that the driving assembly 310 also includes a hydraulic pump 312 , and the hydraulic pump 312 can provide power for the telescopic assembly 320 .

[0095] Reference Figure 2As shown, when there are two telescopic structures 300, the two telescopic structures 300 are respectively located on both sides of the hydraulic pump 312, that is, one telescopic structure 300 is located in the positive direction of X of the hydraulic pump 312, and the other telescopic structure 300 is located in the negative direction of X of the hydraulic pump 312. This application takes the telescopic structure 300 located in the positive direction of X of the hydraulic pump 312 as an example to illustrate the process of the telescopic structure 300 driving the photovoltaic panel 400 to unfold and fold.

[0096] Specifically, the first driving member 311 drives part of the first telescopic member 321 along Figure 2 The first telescopic member 321 extends when the arrow in the middle moves in the positive direction of X. Since one side of the second telescopic member 322 is connected to the first telescopic member 321 and the end of the second telescopic member 322 is connected to the first driving member 311, part of the second telescopic member 322 moves synchronously with the first telescopic member 321 along the positive direction of X. At the same time, the two first driving members 311 approach each other, the second telescopic member 322 extends, and the two adjacent photovoltaic panels 400 unfold following the second telescopic member 322.

[0097] The first driving member 311 drives part of the first telescopic member 321 along Figure 2 Move in the opposite direction of X as indicated by the middle arrow, the first telescopic member 321 contracts, and since one side of the second telescopic member 322 is correspondingly connected to the first telescopic member 321, the end of the second telescopic member 322 is connected to the first driving member 311, part of the second telescopic member 322 follows the first telescopic member 321 and moves synchronously along the opposite direction of X. At the same time, the two first driving members 311 move away from each other, the second telescopic member 322 contracts, and the two adjacent photovoltaic panels 400 follow the second telescopic member 322 to fold.

[0098] The second telescopic member 322 is wavy in shape. For example, the second telescopic member 322 can be composed of multiple brackets connected in sequence through a rotating shaft, each bracket correspondingly supports a photovoltaic panel 400, and two adjacent brackets can rotate relative to the rotating shaft. Two adjacent photovoltaic panels 400 rotate synchronously with the brackets, thereby realizing mutual expansion or folding.

[0099] Reference Figure 4 As shown, in some embodiments, the support assembly 100 includes a support plate 110 and at least three support columns 120, and the support columns 120 are used to connect to the ground.

[0100] The support plate 110 is disposed on the top of the support column 120 , and the first rotating assembly 210 is disposed on the support plate 110 .

[0101] At least three support columns 120. For example, there may be three or more support columns 120, and the present application does not impose too many restrictions on this.

[0102] Exemplarily, the support plate 110 may be in a triangular, rectangular, square or other shape, and the present application does not impose too many restrictions on the shape of the support plate 110 .

[0103] In the specific implementation, three steel cages can be woven first, and then C30 concrete can be poured in the steel cages to form three support columns 120 with a length of 2500mm and a diameter of 350mm. The connecting line of the three support columns 120 is an equilateral triangle with a side length of 2000mm to improve the stability of the support assembly 100.

[0104] It should be noted that a cube embedded part 130 can also be prefabricated on the top of the support column 120. The embedded part 130 is connected to the steel bars in the support column 120 through steel bars to ensure the stability of the embedded part 130. The width of the embedded part 130 can be 200 mm and the height above the support column 120 is 100 mm.

[0105] The support plate 110 can be an iron plate with a thickness of 30 mm. The support plate 110 is welded to the embedded part 130. The support plate 110 can further improve the stability of the support assembly 100. The surface of the support plate 110 is coated with 0.5 mm anti-rust paint to prevent rust.

[0106] Reference Figure 1 and Figure 4 As shown, in some embodiments, the first rotating component 210 includes a second driving member 211 and a transmission rod 212, one end of the transmission rod 212 is rotatably connected to the support plate 110 through the second driving member 211, and the other end of the transmission rod 212 is connected to the second rotating component 220, and the second driving member 211 drives the second rotating component 220, the telescopic structure 300 and the photovoltaic panel 400 to rotate relative to the support plate 110 through the transmission rod 212 to adjust the azimuth angle of the photovoltaic panel 400.

[0107] One end of the transmission rod 212 is rotatably connected to the support plate 110 through the second driving member 211. Exemplarily, the second driving member 211 can be an electric motor or other driving device. The diameter of the motor is 400 mm and the height is 500 mm. The diameter of the transmission rod 212 is 150 mm and the height is 300 mm. The second driving member 211 can be welded to the support plate 110 or threadedly connected. The transmission rod 212 can be connected to the rotating shaft of the second driving member 211 by welding, and the present application does not impose too many restrictions on this.

[0108] In a specific implementation, the second driving member 211 can be disposed in the middle of the support plate 110, and a portion of the second driving member 211 is embedded in the support plate 110, and the rotation axis of the second driving member 211 is along the Figure 4A rotates in the positive direction or the reverse direction of A as shown by the middle arrow to drive the transmission rod 212 connected thereto to rotate synchronously. Since the transmission rod 212 is connected to the second rotating component 220, the transmission rod 212 drives the second rotating component 220, the telescopic structure 300 and the photovoltaic panel 400 to rotate to adjust the azimuth angle of the photovoltaic panel 400.

[0109] Reference Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, in some embodiments, the second rotating assembly 220 includes a fixed plate 221 , a movable plate 222 , a third driving member 223 and a folding member 224 .

[0110] The fixed plate 221 and the movable plate 222 are arranged opposite to each other, the third driving member 223 and the folding member 224 are arranged at intervals between the fixed plate 221 and the movable plate 222, and are both connected to the fixed plate 221 and the movable plate 222, the side of the fixed plate 221 facing away from the movable plate 222 is connected to the transmission rod 212, and the slide rail 330 is connected to the side of the movable plate 222 facing away from the fixed plate 221.

[0111] The folding member 224 is constructed to be partially folded or unfolded when the third driving member 223 drives the movable plate 222 to rise and fall relative to the fixed plate 221, so that the movable plate 222 drives the telescopic structure 300 and the photovoltaic panel 400 to rotate relative to the fixed plate 221 to adjust the inclination angle of the photovoltaic panel 400.

[0112] Exemplarily, the third driving member 223 may be a hydraulic cylinder or other driving device, and the present application does not impose too many restrictions on this.

[0113] Exemplarily, the shapes of the fixed plate 221 and the movable plate 222 may be square, rectangular, or other shapes, and the present application does not impose too many restrictions on this.

[0114] Exemplarily, the folding member 224 may be a hinge or other structures, and the present application does not impose too many restrictions on this.

[0115] In a specific implementation, the fixed plate 221 may be a rectangular plate with a side length of 1000 mm and a thickness of 100 mm, and the movable plate 222 may be a rectangular plate with a side length of 1500 mm and a thickness of 100 mm.

[0116] Reference Figure 5 As shown, part of the third driving member 223 is along Figure 5 The movable plate 222 moves in the positive direction of Y as indicated by the arrow in the middle, thereby driving the movable plate 222 to move synchronously in the positive direction of Y, and the folding member 224 is partially folded, and the movable plate 222 moves in the positive direction of Y. Figure 5 The third driving member 223 rotates in the positive direction of B as indicated by the arrow in the middle; Figure 5The movable plate 222 moves in the opposite direction of Y, thereby driving the movable plate 222 to move synchronously in the opposite direction of Y. The folding member 224 is partially unfolded, and the movable plate 222 moves in the opposite direction of Y. Figure 5 Rotate in the opposite direction of B as indicated by the middle arrow to adjust the tilt angle of the photovoltaic panel 400.

[0117] Reference Figure 6 As shown, in some embodiments, a cleaning component 500 is also included. The cleaning component 500 includes a liquid storage component 510 and a conveying component 520. The conveying component 520 is connected to the liquid storage component 510. The liquid storage component 510 is arranged on the support component 100. The liquid storage component 510 is used to store cleaning liquid, and the conveying component 520 is used to convey the cleaning liquid to the photovoltaic panel 400 to clean the photovoltaic panel 400.

[0118] It should be noted that the cleaning component 500 also includes a pressure pump, which is arranged between the liquid storage component 510 and the conveying component 520 and is used to pressurize the cleaning liquid to ensure the cleaning effect.

[0119] The liquid storage member 510 is disposed on the support assembly 100, and specifically can be disposed on the support plate 110 of the support assembly 100. The liquid storage member 510 is used to store cleaning liquid, and illustratively, the liquid storage member 510 can be a water tank or a water bucket, and the present application does not impose too many restrictions on this.

[0120] The conveying member 520 is used to convey the cleaning liquid to the photovoltaic panel 400 . Exemplarily, the conveying member 520 may be a conveying pipe.

[0121] Reference Figure 1 and Figure 6 As shown, in some embodiments, the second telescopic member 322 is a telescopic tube, and a plurality of water outlets are provided on the telescopic tube.

[0122] The liquid storage member 510 is connected to the telescopic tube via the conveying member 520 , and the conveying member 520 is in communication with the telescopic tube. The cleaning liquid is sequentially conveyed to the photovoltaic panel 400 via the conveying member 520 , the telescopic tube and the water outlet.

[0123] The second telescopic member 322 is a telescopic tube, that is, the interior of the second telescopic member 322 is hollow for the cleaning liquid to flow through. A water outlet is provided on the telescopic tube, and illustratively, the water outlet can be a circular water outlet hole or a square water outlet hole, and this application does not impose too many restrictions on this.

[0124] Specifically, the pressure pump pressurizes the cleaning liquid in the liquid storage member 510 so that the cleaning liquid flows into the telescopic tube through the conveying member 520 . The cleaning liquid entering the telescopic tube flows out from the water outlet and flows onto the photovoltaic panel 400 to clean the photovoltaic panel 400 .

[0125] In some embodiments, the detection component 700 includes a temperature and humidity sensor 710 , a wind speed sensor 720 , and a sun position sensor 730 .

[0126] The temperature and humidity sensor 710 is used to detect the temperature and humidity of the photovoltaic plant area, the wind speed sensor 720 is used to detect the wind speed of the photovoltaic plant area, and the sun position sensor 730 is used to detect the sun's altitude and sun angle.

[0127] In specific implementation, a meteorological cabinet can be set up in the photovoltaic plant area, and a temperature and humidity sensor 710, a wind speed sensor 720 and a sun position sensor 730 can be set in the meteorological cabinet to detect the temperature and humidity of the photovoltaic plant area, the wind speed of the photovoltaic plant area, the sun height and the sun angle of the photovoltaic plant area respectively; the temperature and humidity of the photovoltaic plant area, the wind speed of the photovoltaic plant area, the sun height and the sun angle data can also be directly collected from meteorological satellites or ground meteorological stations, and this application does not impose too many restrictions on this.

[0128] Understandably, data such as temperature and humidity, wind speed, sun altitude and sun angle can provide support for photovoltaic power generation system operation and maintenance management, performance optimization and long-term power generation.

[0129] It should be noted that the azimuth and tilt angle calculated based on the sun altitude and sun angle are the azimuth and tilt angle of the photovoltaic panel 400 at the theoretical maximum power generation, that is, the theoretical azimuth and theoretical tilt angle of the photovoltaic panel 400. In actual situations, since sunlight is blocked by clouds, trees, etc., the actual power generation of the photovoltaic panel 400 is often lower than the theoretical power generation, so a fuzzy search algorithm can be used to finely adjust the azimuth and tilt angle of the photovoltaic panel 400.

[0130] If E represents the generated power, ρ represents the theoretical azimuth, and the fuzzy search algorithm is used, the increment of the azimuth each time is ρ. Adjust each time according to the azimuth angle of the photovoltaic panel 400 The azimuth angle corresponding to ρ when the generated power is maximum is the actual azimuth angle.

[0131] Specifically, the azimuth angles of the photovoltaic panels 400 are adjusted to and ,like , , , then at this time is the adjustment azimuth of ρ, illustratively, ρ can be 2°. Figure 8As shown, the horizontal axis is the theoretical azimuth and the actual azimuth, and the vertical axis is the photovoltaic module position influence coefficient. The photovoltaic module position influence coefficient indicates the degree of influence of the obstruction on the power generation when the photovoltaic panel 400 is located at a certain azimuth. The smaller the photovoltaic module position influence coefficient, the greater the influence of the obstruction on the power generation, resulting in a smaller power generation of the photovoltaic panel 400. The photovoltaic module position influence coefficient corresponding to the adjusted azimuth obtained after the theoretical azimuth is adjusted becomes larger, that is, the adjusted azimuth increases the power generation of the photovoltaic power generation system.

[0132] If α is used to represent the theoretical tilt angle, and the fuzzy search algorithm is used, the increment of the tilt angle each time is α, adjusted each time according to the tilt angle of the photovoltaic panel 400 The tilt angle corresponding to α when the power generation power is maximum is the adjustment tilt angle.

[0133] Specifically, the inclination angle of the photovoltaic panel 400 is adjusted to and ,like , , then at this time is the adjustment tilt angle α, exemplarily, Can be 1°. Fig. 9 As shown, the horizontal axis is the theoretical tilt angle and the actual tilt angle, and the vertical axis is the photovoltaic module position influence coefficient. The smaller the photovoltaic module position influence coefficient, the smaller the power generation capacity. The photovoltaic module position influence coefficient corresponding to the adjusted tilt angle obtained after adjusting the theoretical tilt angle becomes larger, that is, the adjusted tilt angle increases the power generation capacity of the photovoltaic power generation system.

[0134] Reference Fig.10 As shown, the photovoltaic power generation system may also include a protection component 800 and a whole machine power supply device 900, the protection component 800 includes a self-test component 810 and a protection component 820, the self-test component 810 and the protection component 820 are both electrically connected to the controller 600, and the self-test component 810 is used to detect the operating temperature, current, voltage, actual power generation and theoretical power generation of the photovoltaic power generation system. When the photovoltaic power generation system operates normally, the operating temperature is within the fourth preset range, the current is within the fifth preset range, and the voltage is within the sixth preset range. The whole machine power supply device 900 is electrically connected to the controller 600 through the protection component 820, and the first rotating component 210, the second rotating component 220, the telescopic structure 300 and the cleaning component 500 are all electrically connected to the whole machine power supply device 900, and the whole machine power supply device 900 supplies power to the first rotating component 210, the second rotating component 220, the telescopic structure 300 and the cleaning component 500.

[0135] When the operating temperature of the photovoltaic panel 400 is too high, that is, the operating temperature is greater than the fourth preset range, it may be caused by a short circuit of the electrical equipment components; when the current and voltage of the photovoltaic power generation system fluctuate abnormally, that is, the current is greater than the fifth preset range or the voltage is greater than the sixth preset range, the photovoltaic power generation system may be damaged or poorly connected. The controller 600 can control the protection component 820 to disconnect from the whole machine power supply device 900 to cut off the circuit of the photovoltaic power generation system. In addition, the self-test component 810 can promptly detect problems and hidden dangers of the equipment, thereby improving the operation and maintenance efficiency, and providing a basis for subsequent fault diagnosis and system recovery.

[0136] When the operating temperature, current and voltage of the photovoltaic power generation system detected by the self-test component 810 are within the preset range, that is, the photovoltaic power generation system operates normally, and the ratio of the actual power generation power of the photovoltaic power generation system to the theoretical power generation power is less than or equal to 0.6, the controller 600 controls the cleaning component 500 to clean the photovoltaic panel 400.

[0137] It can be understood that the self-test component 810 is used to detect the operating data of the photovoltaic power generation system, and can monitor and evaluate the operating status and performance of the photovoltaic power generation system. By setting the self-test component 810, potential problems in the system can be discovered in time to ensure efficient and stable operation of the system.

[0138] It should be noted that the photovoltaic power generation system is also provided with an inverter preset cabinet and a cable preset casing. The inverter preset cabinet is used to install the inverter equipment and reserves an installation position for the inverter equipment. The cable preset casing is used to install the cable and reserves casing for cable installation.

[0139] Reference Figure 1 and Figure 7 As shown, the present application also provides a control method for a photovoltaic power generation system, which adopts a photovoltaic power generation system.

[0140] Among them, the specific structure and working principle of the photovoltaic power generation system are described in detail in the above embodiments, and will not be repeated here.

[0141] The control method of the photovoltaic power generation system includes:

[0142] S101, detecting the sun's altitude and sun's angle.

[0143] Specifically, a sun position sensor 730 may be provided, and the sun position sensor 730 is electrically connected to the controller 600 . The sun position sensor 730 detects the sun altitude and the sun angle, and transmits the detected sun altitude and sun angle to the controller 600 .

[0144] S102. According to the solar altitude and solar angle, control the first rotating component 210 of the photovoltaic power generation system to drive the second rotating component 220, the telescopic structure 300 and the photovoltaic panel 400 to rotate to adjust the azimuth angle of the photovoltaic panel 400; and control the second rotating component 220 to drive the telescopic structure 300 and the photovoltaic panel 400 to rotate to adjust the inclination angle of the photovoltaic panel 400.

[0145] It can be understood that the controller 600 is electrically connected to the sun position sensor 730 , and the controller 600 calculates the azimuth and tilt angle corresponding to the photovoltaic panel 400 according to the sun altitude and sun angle detected by the sun position sensor 730 .

[0146] Specifically, when the controller 600 controls the first rotating assembly 210 to rotate along Figure 4 When A rotates in the positive direction or the reverse direction of A as shown by the middle arrow, the second rotating component 220, the telescopic structure 300 and the photovoltaic panel 400 arranged on the first rotating component 210 rotate synchronously with the first rotating component 210, thereby achieving the adjustment of the azimuth angle of the photovoltaic panel 400.

[0147] When the controller 600 controls the second rotating assembly 220 to move along Figure 5 When rotating in the positive direction of B or the reverse direction of B as indicated by the middle arrow, the telescopic structure 300 and the photovoltaic panel 400 arranged on the second rotating assembly 220 rotate synchronously with the second rotating assembly 220 , thereby adjusting the tilt angle of the photovoltaic panel 400 .

[0148] S103, detecting wind speed, temperature and humidity.

[0149] Specifically, a wind speed sensor 720 and a temperature and humidity sensor 710 can be set, both of which are electrically connected to the controller 600. The wind speed sensor 720 is used to detect the wind speed, and the temperature and humidity sensor 710 is used to detect the temperature and humidity, and the detected wind speed, temperature and humidity are transmitted to the controller 600.

[0150] S104 , when one of the wind speed and the temperature and humidity exceeds the corresponding preset range, the telescopic structure 300 is controlled to drive two adjacent photovoltaic panels 400 to fold each other.

[0151] Specifically, when the temperature is lower than the first preset range, freezing weather may occur; when the humidity is higher than the second preset range, excessive rainfall may occur; when the wind speed is higher than the third preset range, excessive wind volume may occur. The controller 600 can control the telescopic structure 300 to drive two adjacent photovoltaic panels 400 to fold against each other to prevent freezing, heavy rain or strong wind and other weather conditions from damaging the photovoltaic panels 400, thereby protecting the photovoltaic panels 400.

[0152] Reference Figure 1 As shown, when installing the photovoltaic power generation system, first select the location to be installed, use a drilling machine to drill holes, the number of holes is 3, the hole depth is 2000mm, the hole diameter is 350mm, and the support columns 120 are cast in the holes in turn, and then the support plate 110 and the cube embedded parts 130 on the support columns 120 are welded to ensure that the entire pile foundation has sufficient stability.

[0153] Then, the first rotating component 210 is welded to the support plate 110, the second rotating component 220 is welded on top of the first rotating component 210, and the telescopic structure 300 is welded on top of the second rotating component 220. The photovoltaic panel 400 and the cleaning component 500 are then installed. Finally, the detection component 700 and the controller 600 are installed near the support component 100. The entire device is installed, the installation method is simple, and the work efficiency is improved.

[0154] Reference Fig.10 As shown, during the operation of the photovoltaic power generation system, the self-test component 810 always keeps working, constantly detecting the current, voltage, operating temperature and other information during the operation of the system. Once the self-test component 810 detects a fault or abnormality, such as a local short circuit causing the operating temperature to rise, the self-test component 810 will transmit the fault information to the controller 600, and the controller 600 controls the protection component 820 to cut off the circuit, and the device stops working. If the self-test passes, the next step will be carried out.

[0155] The solar position sensor 730 detects the solar altitude and solar angle, and the controller 600 calculates the azimuth and inclination angle corresponding to the photovoltaic panel 400 based on the solar altitude and solar angle, and controls the first rotating component 210 to drive the second rotating component 220, the telescopic structure 300 and the photovoltaic panel 400 to rotate to adjust the azimuth angle of the photovoltaic panel 400, and controls the second rotating component 220 to drive the telescopic structure 300 and the photovoltaic panel 400 to rotate to adjust the inclination angle of the photovoltaic panel 400.

[0156] Next, the controller 600 controls the cleaning assembly 500 to start working. After cleaning for 5 minutes, the cleaning assembly 500 automatically stops working and the cleaning is completed. The controller 600 controls the telescopic structure 300 to extend to unfold the photovoltaic panel 400, and the photovoltaic panel 400 starts to generate electricity.

[0157] When the photovoltaic panel 400 starts to generate electricity, the controller 600 controls the first rotating component 210 to adjust the azimuth angle by 2° each time until the azimuth angle with the maximum actual power generation is adjusted. The controller 600 then controls the second rotating component 220 to adjust the tilt angle by 1° each time until the tilt angle with the maximum actual power generation is adjusted. At this time, the photovoltaic power generation system starts to generate electricity. Every hour, the photovoltaic power generation system repeats the above steps again, continuously adjusting the azimuth angle and tilt angle of the photovoltaic panel 400 to ensure that the power generation system is always in a high-power power generation state.

[0158] When the sun sets and the irradiance drops to 0, the telescopic structure 300 contracts to fold the photovoltaic panel 400, the second rotating assembly 220 adjusts the tilt angle to 0°, the first rotating assembly 210 adjusts the azimuth angle to 0°, and the photovoltaic power generation system stops generating electricity.

[0159] When the photovoltaic panel 400 is in operation, if the operating temperature, current and voltage of the photovoltaic power generation system detected by the self-test component 810 are all within the preset range, that is, the photovoltaic power generation system is operating normally, and the ratio of the actual power generation to the theoretical power generation is less than or equal to 0.6, the controller 600 will start the cleaning component 500 to clean the photovoltaic panel 400.

[0160] When the photovoltaic power generation system is working, if one of the wind speed, temperature and humidity in the photovoltaic plant exceeds the preset range, for example, once the wind speed exceeds 25m / s, the controller 600 will control the telescopic structure 300 to retract the photovoltaic panel 400 to protect the photovoltaic components from damage; if the self-test component 810 detects that one of the operating temperature, current and voltage of the photovoltaic power generation system exceeds the preset range, that is, when an electrical fault such as overload or short circuit is encountered. The controller 600 controls the protection component 820 to cut off the circuit and controls the telescopic structure 300 to retract the photovoltaic panel 400, thereby effectively preventing the electrical fault from causing damage to the photovoltaic power generation system.

[0161] It can be understood by those skilled in the art that the photovoltaic power generation system and control method provided by the present application are formed by setting a detection component 700, a controller 600, a support component 100, a rotating structure 200, at least one telescopic structure 300 and a plurality of photovoltaic panels 400 to form a photovoltaic power generation system, and the support component 100 is used to connect to the ground. The first rotating component 210 and the second rotating component 220 are set to form a rotating structure 200, the second rotating component 220 is rotatably connected to the support component 100 through the first rotating component 210, and the telescopic structure 300 is arranged on the second rotating component 220, and the telescopic structure 300 is used to support a plurality of photovoltaic panels 400 in sequence. The first rotating component 210, the second rotating component 220, the telescopic structure 300 and the detection component 700 are all electrically connected to the controller 600, and the detection component 700 is used to detect temperature and humidity, wind speed, solar altitude and solar angle. The controller 600 calculates the azimuth and inclination of the photovoltaic panel 400 according to the solar altitude and the solar angle, and controls the first rotating assembly 210 to drive the second rotating assembly 220, the telescopic structure 300 and the photovoltaic panel 400 to rotate to adjust the azimuth of the photovoltaic panel 400, and controls the second rotating assembly 220 to drive the telescopic structure 300 and the photovoltaic panel 400 to rotate to adjust the inclination of the photovoltaic panel 400 to increase the power generation of the photovoltaic panel 400. When the wind speed is greater than the preset range, the temperature is less than the preset range, or the humidity is greater than the preset range, the controller 600 can control the telescopic structure 300 to drive two adjacent photovoltaic panels 400 to fold each other to protect the photovoltaic panel 400, so that the photovoltaic power generation system can both increase the power generation of the photovoltaic panel 400 and protect the photovoltaic panel 400.

[0162] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0163] It should be understood that the various numerical numbers involved in the embodiments of the present application are only used for the convenience of description and are not used to limit the scope of the embodiments of the present application.

[0164] So far, the technical solutions of the present application have 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 application is obviously not limited to these specific embodiments. Without departing from the principles of the present application, 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 application.

Claims

1. A photovoltaic power generation system, characterized in that: It includes a detection component, a controller, a support component, a rotating structure, at least one telescopic structure and a plurality of photovoltaic panels, wherein the support component is used to be connected to the ground; The rotating structure comprises a first rotating assembly and a second rotating assembly, the second rotating assembly is rotatably connected to the supporting assembly through the first rotating assembly, the telescopic structure is arranged on the second rotating assembly, and the telescopic structure is used to sequentially support the plurality of photovoltaic panels; The first rotating assembly, the second rotating assembly, the telescopic structure and the detection assembly are all electrically connected to the controller, and the detection assembly is used to detect temperature and humidity, wind speed, sun altitude and sun angle; The controller controls the first rotating assembly to drive the second rotating assembly, the telescopic structure and the photovoltaic panel to rotate according to the solar altitude and the solar angle, so as to adjust the azimuth angle of the photovoltaic panel, and controls the second rotating assembly to drive the telescopic structure and the photovoltaic panel to rotate, so as to adjust the inclination angle of the photovoltaic panel; When one of the wind speed and the temperature and humidity exceeds a corresponding preset range, the controller controls the telescopic structure to drive two adjacent photovoltaic panels to fold toward each other; The telescopic structure comprises a driving assembly, a telescopic assembly and two slide rails, wherein the slide rails are arranged on the second rotating assembly, and the two slide rails are arranged opposite to each other; The driving assembly comprises two first driving members spaced apart in the vertical direction, the first driving member is arranged between the two slide rails, and the ends of the first driving member are correspondingly slidably connected to the slide rails; The two first driving members are both connected to the telescopic assembly, and the telescopic assembly is configured to extend to drive the two adjacent photovoltaic panels to unfold when the two first driving members approach each other, and to contract to drive the two adjacent photovoltaic panels to fold each other when the two first driving members move away from each other; The telescopic assembly includes a pair of first telescopic members and a pair of second telescopic members, wherein the first telescopic members in the pair are symmetrically arranged in the horizontal direction and are both connected to the same one of the two first driving members; The second telescopic member is wavy in shape, and the paired second telescopic members are used to jointly support the plurality of photovoltaic panels in sequence, one side of the second telescopic member is correspondingly connected to the first telescopic member, and the end of the second telescopic member is connected to the other of the two first driving members, and the first driving member drives the second telescopic member to extend or contract through the first telescopic member; The support assembly includes a support plate and at least three support columns, and the support columns are used to connect to the ground; The support plate is arranged on the top of the support column, and the first rotating assembly is arranged on the support plate; The first rotating assembly includes a second driving member and a transmission rod, one end of the transmission rod is rotatably connected to the support plate through the second driving member, and the other end of the transmission rod is connected to the second rotating assembly, and the second driving member drives the second rotating assembly, the telescopic structure and the photovoltaic panel to rotate relative to the support plate through the transmission rod to adjust the azimuth angle of the photovoltaic panel; The second rotating assembly includes a fixed plate, a movable plate, a third driving member and a folding member; The fixed plate and the movable plate are arranged opposite to each other, the third driving member and the folding member are arranged between the fixed plate and the movable plate, and are both connected to the fixed plate and the movable plate, a side of the fixed plate facing away from the movable plate is connected to the transmission rod, and the slide rail is connected to a side of the movable plate facing away from the fixed plate; The folding member is constructed to be partially folded or unfolded when the third driving member drives the movable plate to rise and fall relative to the fixed plate, so that the movable plate drives the telescopic structure and the photovoltaic panel to rotate relative to the fixed plate to adjust the inclination angle of the photovoltaic panel.

2. The photovoltaic power generation system according to claim 1, characterized in that: It also includes a cleaning component, which includes a liquid storage component and a conveying component. The conveying component is connected to the liquid storage component, and the liquid storage component is arranged on the supporting component. The liquid storage component is used to store cleaning liquid, and the conveying component is used to convey the cleaning liquid to the photovoltaic panel to clean the photovoltaic panel.

3. The photovoltaic power generation system according to claim 2, characterized in that: The second telescopic member is a telescopic tube, and a plurality of water outlets are arranged on the telescopic tube; The liquid storage member is connected to the telescopic tube via the conveying member, the conveying member is in communication with the telescopic tube, and the cleaning liquid is sequentially conveyed to the photovoltaic panel via the conveying member, the telescopic tube and the water outlet.

4. The photovoltaic power generation system according to any one of claims 1 to 3, characterized in that: The detection component includes a temperature and humidity sensor, a wind speed sensor and a sun position sensor; The temperature and humidity sensor is used to detect the temperature and humidity of the photovoltaic plant area, the wind speed sensor is used to detect the wind speed of the photovoltaic plant area, and the sun position sensor is used to detect the sun height and the sun angle.

5. A control method for a photovoltaic power generation system, characterized in that: The photovoltaic power generation system according to any one of claims 1 to 4 is adopted, and the control method of the photovoltaic power generation system comprises: Detect sun altitude and sun angle; According to the solar altitude and the solar angle, controlling the first rotating assembly of the photovoltaic power generation system to drive the second rotating assembly, the telescopic structure and the photovoltaic panel to rotate so as to adjust the azimuth angle of the photovoltaic panel; and controlling the second rotating assembly to drive the telescopic structure and the photovoltaic panel to rotate so as to adjust the inclination angle of the photovoltaic panel; Detect wind speed, temperature and humidity; When one of the wind speed and the temperature and humidity exceeds a corresponding preset range, the telescopic structure is controlled to drive two adjacent photovoltaic panels to fold toward each other.

Images