Wind-resistant graphene photovoltaic panel array and working method

Abstract

The invention provides a wind-resistant graphene photovoltaic panel array and a working method, the array comprises a supporting device, a driving device and a photovoltaic device, the supporting device is suitable for being fixed on the ground, the driving device is installed on the supporting device, the driving device comprises a plurality of inner frames, each inner frame is suitable for sliding along the longitudinal direction of the supporting device, and the photovoltaic device is installed on the supporting device. A plurality of photovoltaic devices are arranged on each inner frame, and each photovoltaic device is suitable for sliding in the transverse direction of the supporting device; each photovoltaic device comprises three photovoltaic panels which are connected end to end in the circumferential direction and are perpendicular to each other, and the cross section of a combination formed by the three photovoltaic panels is in an equilateral triangle shape. The combined body is suitable for rotating around the central line of the photovoltaic device; the orientation of the assembly can be adjusted to reduce the windward area of each photovoltaic panel, and the airflow only flows through the flat and smooth front surfaces of the photovoltaic panels no matter what wind direction is. The combination body can receive sunlight irradiation in the 360-degree circumferential direction, and power can be continuously generated when the combination body is in any direction; and the vertical photovoltaic panel can also prevent dust from being attached to the light receiving surface of the photovoltaic panel.

Description

Technical Field

[0001] The present invention belongs to the field of photovoltaic power generation, and in particular relates to a wind-resistant graphene photovoltaic panel array and a working method. Background Art

[0002] Installing photovoltaic panels in the wilderness of uninhabited areas can make full use of the light energy on the barren land to generate electricity, especially in the northwest region of China where the lighting conditions are better. Building large-scale photovoltaic arrays in open areas can generate electricity using the meteorological conditions with sufficient sunlight. Existing photovoltaic arrays generally adopt the arrangement disclosed in the Chinese patent document with document number "201710107613.9" and the name "A rooted photovoltaic panel solar power generation device in a desert area" or document number "202310311868.2" and the name "Photovoltaic panel rotation system based on the light requirement of crops under photovoltaic panels". This arrangement uses all the photovoltaic panels facing south to generate electricity. Although the inclination of the photovoltaic panels is adjustable, the windward area of ​​the photovoltaic panels arranged in an inclined manner is still large. In addition, when the north wind blows, the airflow will blow to the back of the photovoltaic panels. Since the brackets installed on the back of the photovoltaic panels are not flat, the airflow guidance is poor, and the photovoltaic panels have a small ground clearance, the airflow resistance on the back of the photovoltaic panels is much greater than that on the front. When the wind is strong, the photovoltaic panels are prone to tipping over. At the same time, the light-receiving side of the photovoltaic panels arranged in an inclined manner is easily covered by the attached sand or dust, which seriously affects the power generation of the photovoltaic panels. The wilderness in the northwest region of China has strong winds and sand all year round. In order to improve the efficiency of photovoltaic power generation in this region, it is necessary to design a wind-resistant graphene photovoltaic panel array. Summary of the invention

[0003] 1. Technical issues to be resolved

[0004] In view of the above technical problems, the purpose of the present invention is to provide a wind-resistant graphene photovoltaic panel array and a working method, wherein the photovoltaic panel has stronger wind and dust resistance and can ensure that it collects sunlight throughout the day.

[0005] (II) Technical solution

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] The present invention provides a wind-resistant graphene photovoltaic panel array, which comprises: a supporting device, a driving device and a photovoltaic device. The supporting device is suitable for being fixed on the ground, the driving device is installed on the supporting device, the driving device comprises a plurality of inner frames, each of which is suitable for sliding along the longitudinal direction of the supporting device, and each inner frame is provided with a plurality of photovoltaic devices, each of which is suitable for sliding along the transverse direction of the supporting device; each photovoltaic device comprises three photovoltaic panels which are connected end to end and vertically in the circumferential direction, and the cross section of the assembly formed by the three photovoltaic panels is an equilateral triangle; the assembly is suitable for rotating around the center line of the photovoltaic device.

[0008] The supporting device includes an outer frame consisting of a front side beam, a rear side beam, a left beam and a right beam, and a longitudinal slide groove is respectively provided on the inner side walls of the left beam and the right beam; rollers rolling in the corresponding longitudinal slide grooves are provided at both ends of each inner frame, and each inner frame is suitable for moving along the longitudinal direction of the supporting device through the rollers and the longitudinal slide grooves.

[0009] Each inner frame is composed of a left longitudinal beam, a right longitudinal beam, a front cross beam and a rear cross beam. A transverse slide groove is respectively provided on the inner side walls of the front cross beam and the rear cross beam. A pair of side walls of each photovoltaic device facing the front and rear cross beams are respectively provided with driving wheels that roll in the corresponding transverse slide grooves. Each photovoltaic device is suitable for lateral movement along the supporting device through the driving wheels and the transverse slide grooves.

[0010] A longitudinal slide bar 1 along the longitudinal direction of the support device is adjacent to the inner side of the left beam, and a longitudinal slide bar 2 along the longitudinal direction of the support device is adjacent to the inner side of the right beam; sliding holes are respectively provided in the left longitudinal beam and the right longitudinal beam of each inner frame, and the longitudinal slide bar 1 is inserted into the sliding hole of the left longitudinal beam, and the longitudinal slide bar 2 is inserted into the sliding hole of the right longitudinal beam, and each longitudinal slide bar is slidably matched with the corresponding sliding hole.

[0011] A transverse slide bar is arranged between the left and right longitudinal beams of each inner frame and is arranged along the transverse direction of the supporting device. A guide hole is arranged in each photovoltaic device. The transverse slide bar is inserted into the corresponding guide hole and slidably cooperates with the guide hole.

[0012] The wind-resistant graphene photovoltaic panel array also includes: a controller and a wind direction and wind force sensor. Each inner frame is provided with a motor for driving each roller to rotate. Each photovoltaic device is provided with a motor for driving each driving wheel and the combination to rotate. The controller is connected to the wind direction and wind force sensor and each motor signal.

[0013] Four corners of the outer frame are provided with columns supported on the ground, and each column is suitable for lifting and reciprocating vibration.

[0014] The present invention also provides a working method of a wind-resistant graphene photovoltaic panel array, which comprises the following steps:

[0015] a. The wind direction and wind force sensors monitor the wind direction in real time and transmit the signal to the controller. The controller obtains the direction and angle of sunlight according to the latitude and longitude of the location and time, and calculates the center distance between adjacent photovoltaic devices;

[0016] b. The controller controls the motors in the left and right longitudinal beams of each inner frame to work, driving each roller to rotate, thereby driving each inner frame to move longitudinally along the supporting device on the outer frame to control the radial spacing between adjacent photovoltaic devices;

[0017] c. The controller controls the corresponding motor in each photovoltaic device to work, drives each driving wheel to rotate, thereby driving each photovoltaic device to move laterally along the supporting device on the inner frame, so as to control the axial spacing between adjacent photovoltaic devices;

[0018] d. The controller controls the corresponding motors in each photovoltaic device to operate, driving the assembly to rotate, so as to adjust the orientation of each assembly.

[0019] As a preference, the orientation of each assembly is adjusted so that one of its symmetry planes is parallel to the wind direction.

[0020] As a preference, in the direction of sunlight exposure, the maximum projection radius of the upstream photovoltaic device is R1, the radius of the equilateral triangle of the cross section of the downstream photovoltaic device itself is R2, and the center distance Q between the upstream and downstream adjacent photovoltaic devices is Q=R1+R2.

[0021] (III) Beneficial effects

[0022] The present invention provides a wind-resistant graphene photovoltaic panel array and a working method, which have the following beneficial effects:

[0023] (1) The wind-resistant graphene photovoltaic panel array of the present invention adopts a photovoltaic device that can move longitudinally and transversely along a supporting device to achieve adjustable distances between adjacent photovoltaic devices to ensure that sunlight can irradiate onto the photovoltaic panels of the photovoltaic devices; a photovoltaic panel assembly with an equilateral triangle cross-section and vertically connected end to end along the circumferential direction is adopted, which can reduce the windward area of ​​each photovoltaic panel by adjusting the orientation of the assembly and allow the airflow to flow only through the smooth front surface of the photovoltaic panel regardless of the wind direction, thereby reducing wind resistance and improving wind resistance; it can also achieve 360-degree circumferential exposure to sunlight and can continuously generate electricity when the assembly is in any orientation; the vertical photovoltaic panel can also prevent sand and dust from adhering to the light-receiving surface of the photovoltaic panel.

[0024] (2) By utilizing the rolling cooperation between the roller and the longitudinal slide groove, even if dust falls on the longitudinal slide groove, the photovoltaic device can still be moved longitudinally along the supporting device, thereby improving the reliability of the driving device.

[0025] (3) By utilizing the rolling cooperation between the driving wheel and the transverse slide groove, even if dust falls on the transverse slide groove, the photovoltaic device can still be moved laterally along the supporting device, thereby improving the reliability of the driving device.

[0026] (4) The sliding cooperation between the sliding hole and the longitudinal sliding rod 1 and the longitudinal sliding rod 2 has a guiding effect on the movement of the photovoltaic device, preventing strong winds from affecting the longitudinal movement of the photovoltaic device along the supporting device, and improving the wind resistance of the driving device.

[0027] (5) The sliding fit between the guide hole and the transverse sliding rod also has a guiding effect on the movement of the photovoltaic device, preventing strong winds from affecting the transverse movement of the photovoltaic device along the supporting device, thereby improving the wind resistance of the driving device.

[0028] (6) The controller is used to collect wind direction and wind force signals, and the motor is used to drive the rollers and drive wheels to work, drive the assembly to rotate, and realize the automation of the photovoltaic device adjustment process.

[0029] (7) The lifting function of the column is used to adjust the ground clearance of the inner and outer frames to prevent them from being covered by wind and sand; the reciprocating vibration function of the column is used to shake off the dust or sand attached to the inner and outer frames and each longitudinal slide bar and transverse slide bar, thereby further improving the reliability of the drive device.

[0030] (8) The working method of the wind-resistant graphene photovoltaic panel array of the present invention uses the wind direction, longitude and latitude of the location and time information monitored by the controller to calculate the center distance between adjacent photovoltaic devices. The controller controls the longitudinal movement of the inner frame on the outer frame, the lateral movement of each photovoltaic device on the inner frame, and the rotation of the assembly, which not only ensures that each assembly can collect sunlight throughout the day, but also reduces the windward area and wind resistance of each photovoltaic panel, thereby improving the wind resistance.

[0031] (9) The symmetry plane of the assembly is parallel to the wind direction, which not only reduces wind resistance but also guides the oncoming airflow evenly to both sides of the assembly, so that the air friction forces on the two sides of the assembly offset each other and prevent the assembly from rotating due to the wind.

[0032] (10) By calculating the maximum projection radius of the upstream photovoltaic device, it is possible to prevent the assembly on the downstream photovoltaic device from being blocked by the upstream photovoltaic device, and to reduce the center distance between the upstream and downstream photovoltaic devices, so as to increase the number and density of photovoltaic devices installed on the inner and outer frames, thereby improving the photovoltaic power generation capacity per unit land area. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 A three-dimensional diagram of the wind-resistant graphene photovoltaic panel array of the present invention;

[0034] Figure 2 The structure of the driving device of the photovoltaic panel array in the present invention is shown in FIG. Figure 1 ;

[0035] Figure 3 The structure of the driving device of the photovoltaic panel array in the present invention is shown in FIG. Figure 2 ;

[0036] Figure 4 It is a schematic diagram of the structure of the photovoltaic device in the present invention;

[0037] Figure 5 A top view of the wind-resistant graphene photovoltaic panel array of the present invention;

[0038] Figure 6 For the present invention Figure 5 AA section view;

[0039] Figure 7 For the present invention Figure 5 BB cross-sectional view;

[0040] Figure 8 For the present invention Figure 6 A partial enlarged view of point C;

[0041] Fig. 9 For the present invention Figure 7 A partial enlarged view of point D;

[0042] Fig.10 A diagram showing the relationship between the orientation of the photovoltaic device and the wind direction in the present invention;

[0043] Fig.11 Schematic diagram of the illumination projection of the photovoltaic device in the present invention Figure 1 ;

[0044] Fig.12 Schematic diagram of the illumination projection of the photovoltaic device in the present invention Figure 2 ;

[0045] Fig.13 Schematic diagram of the illumination projection of the photovoltaic device in the present invention Figure 3 ;

[0046] Fig.14 Schematic diagram of the illumination projection of the photovoltaic device in the present invention Figure 4 ;

[0047] Fig.15 It is a schematic diagram of the force of the assembly in the present invention.

[0048] In the figure: 1. supporting device; 101. column; 102. rear beam; 103. left beam; 104. right beam; 105. front beam; 106. longitudinal slide; 2. driving device; 201. left longitudinal beam; 202. front cross beam; 203. rear cross beam; 204. right longitudinal beam; 205. roller; 206. axle; 207. transverse slide; 208. transverse slide bar; 209. longitudinal slide bar one; 210. longitudinal slide bar two; 211. slide hole; 3. photovoltaic device; 301. base; 302. driving shaft; 303. driving wheel; 304. guide hole; 305. supporting rod; 306. photovoltaic panel one; 307. photovoltaic panel two; 308. photovoltaic panel three; 309. supporting block; 310. supporting sleeve; 311. rotating axis; 312. symmetry plane; 4. projection plane. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0050] like Figure 1-9 As shown, the wind-resistant graphene photovoltaic panel array of the present invention includes a supporting device 1, a driving device 2 and a photovoltaic device 3. The supporting device 1 includes a square outer frame composed of a front side beam 105, a rear side beam 102, a left side beam 103 and a right side beam 104, and the four corners of the outer frame are respectively provided with columns 101 for supporting the square frame on the ground. A longitudinal slide 106 is respectively provided on the inner side wall of the left side beam 103 and the right side beam 104, and the longitudinal slide 106 is arranged along the axial direction of the left and right beams. A longitudinal slide bar 1 209 is adjacently provided on the inner side of the left beam 103 along its axial direction, and a longitudinal slide bar 2 210 is adjacently provided on the inner side of the right beam 104 along its axial direction, and the two ends of the longitudinal slide bar 1 209 and the longitudinal slide bar 2 210 are respectively connected to the front side beam 105 and the rear side beam 102. As a preferred embodiment, each of the columns 101 has a lifting function, and in particular, can vibrate back and forth. A motor and a screw mechanism for driving the lifting and reciprocating vibration are provided inside the column 101.

[0051] The supporting device 1 is provided with a driving device 2, which includes the longitudinal slide bar 1 209, the longitudinal slide bar 210 and a plurality of square inner frames composed of the left longitudinal beam 201, the right longitudinal beam 204, the front cross beam 202 and the rear cross beam 203. Among them, each left longitudinal beam 201 is provided with a sliding hole 211, and the longitudinal slide bar 1 209 is inserted into the sliding hole 211 and the two slide in cooperation. Each right longitudinal beam 204 is also provided with a sliding hole 211, and the longitudinal slide bar 210 is also inserted into the sliding hole 211 and the two slide in cooperation. A pair of parallel wheel shafts 206 are provided at the left end of each left longitudinal beam 201, and a roller 205 is provided at the outer end of each wheel shaft 206, and each roller 205 rolls in the longitudinal slide groove 106 of the left beam 103. A pair of parallel axles 206 are also provided at the right end of each right longitudinal beam 204, and a roller 205 is also provided at the outer end of each axle 206. Each roller 205 rolls in the longitudinal slot 106 of the right side beam 104. A transverse slide bar 208 is connected between the left longitudinal beam 201 and the right longitudinal beam 204, and the transverse slide bar 208 is parallel to the front cross beam 202 and the rear cross beam 203. Transverse slots 207 along the axial direction are provided on the inner side walls of the front cross beam 202 and the rear cross beam 203. Each roller 205 is respectively connected to the motors arranged in the left and right longitudinal beams.

[0052] As a preferred embodiment, the longitudinal slide bar 1 209, the longitudinal slide bar 210 and the corresponding slide hole 211 are rotated together through threads. Without the need to set up the roller 205 and the wheel axle 206, the longitudinal slide bar 1 209 and the longitudinal slide bar 210 are driven by independent motors, and the inner frame is moved along each longitudinal slide bar by a screw mechanism.

[0053] like Figure 4 As shown, a plurality of photovoltaic devices 3 are respectively slidably matched on each front crossbeam 202 and the rear crossbeam 203, and each photovoltaic device 3 includes a base 301, and a guide hole 304 is provided in the base 301, and the guide hole 304 passes through a pair of side walls on the base 301 facing the left and right longitudinal beams. The transverse slide bar 208 is penetrated in the guide hole 304 and the two are slidably matched. A driving shaft 302 is respectively provided on a pair of side walls on the base 301 facing the front and rear crossbeams, and a driving wheel 303 is respectively connected to the outer end of each driving shaft 302, and each driving wheel 303 is respectively rollingly matched in the transverse slide groove 207 of the corresponding front and rear crossbeams. Each driving wheel 303 is respectively connected to the motor arranged in the base 301.

[0054] As a preferred embodiment, the transverse slide bar 208 and the guide hole 304 are rotationally matched through threads. Without the need to set up a drive shaft 302 and a drive wheel 303, the drive shaft 302 is driven by an independent motor, and the movement of the inner frame along the transverse slide bar 208 is achieved by a screw mechanism.

[0055] A support rod 305 is provided on the top of each base 301. Figure 8-9 As shown, the top of the support rod 305 is provided with a rotating shaft 311, the lower end of the rotating shaft 311 is connected to the motor arranged in the support rod 305, the upper end of the rotating shaft 311 is connected to a support sleeve 310, the bottom end of the support sleeve 310 is provided with a cylindrical groove, the groove is sleeved on the cylindrical top of the support rod 305, and the support sleeve 310 and the support rod 305 are suitable for relative rotation with a common symmetric center line. Three support blocks 309 are provided on the outer wall of the support sleeve 310 at intervals of 120 degrees along the circumferential direction, and the outer end of each support block 309 is respectively connected to a vertical photovoltaic panel, namely photovoltaic panel 1 306, photovoltaic panel 2 307 and photovoltaic panel 3 309. Photovoltaic panel 1, photovoltaic panel 2 and photovoltaic panel 3 have the same structure and shape, and are connected end to end along the circumferential direction of the support sleeve 310 to form a combination, and the cross section of the combination is an equilateral triangle.

[0056] The wind-resistant graphene photovoltaic panel array of the present invention also includes a controller and a wind direction and wind force sensor (not shown in the figure), and the controller is connected to the wind direction and wind force sensor signal and is suitable for collecting external wind force and wind direction information. The controller pre-stores the latitude and longitude values ​​of the location and has a timing device. The controller is connected to the motors in the left and right longitudinal beams, the motors in each base 301, the motors in each support rod 305, the motors in each column 101 and each photovoltaic panel signal and is suitable for controlling the rotation angle and speed of each of the above motors and transmitting the power of each photovoltaic panel to the power grid. As a preferred embodiment, a battery is also provided in the controller, which can store part of the power of the photovoltaic panel and meet the power demand when the photovoltaic panel cannot generate electricity.

[0057] The wind direction and wind force sensor may be a wind direction and wind force monitoring device for traffic disclosed in Chinese patent document with document number "CN212988448U" or a cup-type wind speed and direction monitoring device disclosed in Chinese patent document with document number "CN118858682A".

[0058] A layer of graphene is coated on the surface of each photovoltaic panel that receives sunlight to improve its photoelectric conversion efficiency and enhance the thermal conductivity and heat dissipation performance of the photovoltaic panel.

[0059] As a preferred embodiment, each of the above motors is provided with a rotor locking device, which can limit the rotor to prevent it from rotating when the motor is not working. Each motor adopts a servo motor that can autonomously monitor the rotation angle of its rotor.

[0060] The wind-resistant graphene photovoltaic panel array of the present invention has a working method as follows:

[0061] (1) The wind direction and wind force sensors monitor the wind direction in real time and transmit their signals to the controller. The controller obtains the direction and angle of sunlight based on the latitude and longitude of the location and the time, and calculates the center distance between adjacent photovoltaic devices;

[0062] (2) The controller controls the motors in the left and right longitudinal beams of each inner frame to operate, driving each roller 205 to rotate, thereby driving each inner frame to move forward and backward on the outer frame (i.e., in the longitudinal direction of the support device 1) to control the distance between adjacent inner frames, that is, to control the radial spacing between adjacent photovoltaic devices 3 (i.e., the spacing along the longitudinal direction of the support device 1);

[0063] (3) The controller controls the motor in the base 301 of each photovoltaic device 3 to operate, driving each driving wheel 303 to rotate, thereby driving each photovoltaic device 3 to move along the left and right directions (i.e., the lateral direction of the support device 1) on the inner frame, so as to control the axial spacing between adjacent photovoltaic devices 3 (i.e., the spacing along the lateral direction of the support device 1);

[0064] (4) The controller controls the motor in each support rod 305 to drive each support sleeve 310 to rotate, thereby driving the combination including photovoltaic panel 1 306, photovoltaic panel 2 307 and photovoltaic panel 3 308 to rotate synchronously to adjust the direction of each photovoltaic panel and reduce the windward area and wind resistance of each photovoltaic panel.

[0065] As a preferred embodiment, Fig.10 As shown, Fig.10 The parallel arrows in the figure represent the wind direction, and the controller adjusts the orientation of the assembly so that a symmetric plane 312 of each assembly is parallel to the wind direction. Fig.15 As shown, Fig.15 The arrow at the top represents the direction of the airflow. When the oncoming airflow passes through the assembly, the airflow is evenly divided into two and directed to the surfaces of the second photovoltaic panel 307 and the third photovoltaic panel 308 on both sides. The friction force generated by the airflow passing through the surface of the second photovoltaic panel 307 is assumed to be F. 1 , F 1 The moment T generated about the center O of the assembly 1 , T 1 It will cause the assembly to rotate counterclockwise around the center O. The friction force generated by the airflow passing through the surface of the photovoltaic panel 308 is assumed to be F 2 , F 2 The moment T generated about the center O of the assembly 2 , T 2 will cause the assembly to rotate clockwise around the center O; since the airflow to the surfaces of the photovoltaic panel 2 307 and the photovoltaic panel 3 308 on the left and right sides is evenly divided, the flow rate and flow rate are equal, so F 1 =F 2 , T 1 =T 2 , at this time the torque T 1 With T 2 The values ​​are equal but the directions are opposite, which cancel each other out, and the forces on the assembly are balanced, preventing the assembly from rotating due to the influence of wind.

[0066] If the center distance between the photovoltaic devices is too small, they will block the sunlight. If the center distance is too large, the density of the photovoltaic devices will be too low and the land area will be wasted. As a preferred method, the distance between adjacent photovoltaic devices needs to be adjusted according to the direction and angle of sunlight. Fig.11 As shown, Fig.11The parallel arrows in represent the direction of sunlight exposure, and the elliptical projection plane 4 is the horizontal plane where the bottom walls of photovoltaic panel 1 306, photovoltaic panel 2 307 and photovoltaic panel 3 308 are located. Under sunlight exposure, the projection of point H on the top edge of the photovoltaic panel facing away from the sunlight on the plane is H′, the projection of point J on the plane is J′, the projection of line segment HK corresponding to the edge of the photovoltaic panel on the plane is H′K, the projection of line segment JG on the plane is J′G, and the projection of line segment JH on the plane is J′H′. Assuming that the angle between the sunlight and the projection plane 4 is θ, then Fig.11 The angle ∠HH′K between the middle segment H′K and the segment H′H is θ, and the angle ∠JJ′G between the segment JJ′ and the segment J′G is also θ. Since the segment JG is perpendicular to the segment J′G (i.e., JG⊥J′G), the segment HK is perpendicular to the segment H′K (i.e., HK⊥H′K), and the segment JG and the segment HK are of equal length, the segment H′K and the segment J′G are of equal length, and since the segment H′K and the segment J′G are parallel, the plane GK H′J′ is a parallelogram, which results in the segments JH, GK, and J′H′ being of equal length, and the segment JH being parallel to the segment GK (i.e., JH / / GK), and GK / / J′H′, so the plane JHH′J′ is also a parallelogram.

[0067] like Fig.12 As shown, Fig.12 for Fig.11 A top view of Fig.12 The parallel arrows in represent the direction of sunlight. The projection of plane JHKG on projection plane 4 is parallelogram GKH′J′. A circle is made with the center of equilateral triangle GMK vertically projected by photovoltaic device 3 on projection plane 4 as center O and the length r of line segment OJ′ as radius. At the same time, a circle is made with center O and the length R of line segment OH′ as radius. It can be concluded that R>r. The reason is that in the direction of sunlight, Fig.11 The endpoint H in is farther than the endpoint J, and its projection H′ is farther than J′ and is more likely to block the photovoltaic panel on the adjacent photovoltaic device 3, so the radius R is called the maximum projection radius.

[0068] like Fig.13 As shown, Fig.13 The parallel arrows in the figure represent the direction of sunlight. In order to avoid sunlight blocking between adjacent photovoltaic devices 3 and to facilitate calculation and control, the center O between adjacent photovoltaic devices 3 is 1 With O 2 or 3 The center distance Q is set to Q = R 1 +R 2 , where R 1 is the maximum projection radius of the upstream photovoltaic device 3 in the direction of sunlight, R 2is the radius of the equilateral triangle of the cross section of the adjacent downstream photovoltaic device. The angle θ between the sunlight and the projection surface 4 is different in different seasons and at different times of the day. According to the longitude and latitude of the photovoltaic device 3, the angle θ and the direction of sunlight at different times of the day can be obtained, so that the controller calculates the maximum projection radius R of each photovoltaic device 3. 1 , according to the formula Q = R 1 +R 2 The center distance Q of each pair of adjacent photovoltaic devices 3 is obtained, and then the radial spacing and axial spacing between adjacent photovoltaic devices 3 are controlled by the above method to meet the requirements of the center distance Q.

[0069] A pair of adjacent photovoltaic devices 3, if they are not in an upstream and downstream relationship along the direction of sunlight exposure, but are parallel to each other, such as Fig.14 As shown, Fig.14 The parallel arrows in the figure represent the direction of sunlight. At this time, the direction of sunlight is parallel to the center O of a pair of photovoltaic devices 3. 4 , O 5 The lines connecting them are perpendicular to each other, so the distance Q between their centers is Q ≥ 2 × R 2 , so that when the photovoltaic device assembly rotates, they will not interfere with each other.

[0070] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wind-resistant graphene photovoltaic panel array, characterized in that include: A support device (1), a drive device (2) and a photovoltaic device (3), wherein the support device (1) is suitable for being fixed on the ground, the drive device (2) is installed on the support device (1), the drive device (2) comprises a plurality of inner frames, each inner frame is suitable for sliding along the longitudinal direction of the support device (1), each inner frame is provided with a plurality of photovoltaic devices (3), each photovoltaic device (3) is suitable for sliding along the transverse direction of the support device (1); each photovoltaic device (3) comprises three photovoltaic panels connected end to end in a circumferential direction and vertically, the cross section of the assembly formed by the three photovoltaic panels is an equilateral triangle; the assembly is suitable for rotating around the center line of the photovoltaic device (3).

2. The wind-resistant graphene photovoltaic panel array according to claim 1, characterized in that: The support device (1) comprises an outer frame consisting of a front side beam (105), a rear side beam (102), a left side beam (103) and a right side beam (104); a longitudinal slide groove (106) is respectively arranged on the inner side wall of the left side beam (103) and the right side beam (104); rollers (205) rolling in the corresponding longitudinal slide groove (106) are arranged at both ends of each inner frame, and each inner frame is suitable for moving along the longitudinal direction of the support device (1) through the rollers (205) and the longitudinal slide groove (106).

3. The wind-resistant graphene photovoltaic panel array according to claim 2, characterized in that: Each inner frame is composed of a left longitudinal beam (201), a right longitudinal beam (204), a front cross beam (202) and a rear cross beam (203); a transverse slide groove (207) is respectively provided on the inner side walls of the front cross beam (202) and the rear cross beam (203); a pair of side walls of each photovoltaic device (3) facing the front and rear cross beams are respectively provided with a driving wheel (303) that rolls in the corresponding transverse slide groove (207); each photovoltaic device (3) is suitable for moving laterally along the support device (1) through the driving wheel (303) and the transverse slide groove (307).

4. The wind-resistant graphene photovoltaic panel array according to claim 3, characterized in that: A longitudinal slide bar 1 (209) along the longitudinal direction of the support device (1) is adjacently arranged on the inner side of the left beam (103), and a longitudinal slide bar 2 (210) along the longitudinal direction of the support device (1) is adjacently arranged on the inner side of the right beam (104); a slide hole (211) is respectively arranged in the left longitudinal beam (201) and the right longitudinal beam (204) of each inner frame, the longitudinal slide bar 1 (209) is inserted into the slide hole (211) of the left longitudinal beam (201), and the longitudinal slide bar 2 (210) is inserted into the slide hole (211) of the right longitudinal beam (204), and each longitudinal slide bar is slidably matched with the corresponding slide hole.

5. The wind-resistant graphene photovoltaic panel array according to claim 4, characterized in that: A transverse sliding bar (208) is provided between the left and right longitudinal beams of each inner frame and is arranged along the transverse direction of the support device (1); a guide hole (304) is provided in each photovoltaic device (3); and the transverse sliding bar (208) is inserted into the corresponding guide hole (304) and slidably cooperates with the guide hole.

6. The wind-resistant graphene photovoltaic panel array according to any one of claims 3 to 5, characterized in that It also includes: a controller and a wind direction and wind force sensor; each inner frame is provided with a motor for driving each roller (205) to rotate; each photovoltaic device (3) is provided with a motor for driving each driving wheel (303) and the combination to rotate; the controller is connected to the wind direction and wind force sensor and each motor signal.

7. The wind-resistant graphene photovoltaic panel array according to claim 6, characterized in that: Four corners of the outer frame are respectively provided with upright posts (101) supported on the ground, and each upright post (101) is suitable for lifting and reciprocating vibration.

8. A method for operating a wind-resistant graphene photovoltaic panel array according to claim 7, characterized in that The following steps are involved: a. The wind direction and wind force sensors monitor the wind direction in real time and transmit the signal to the controller. The controller obtains the direction and angle of sunlight according to the latitude and longitude of the location and time, and calculates the center distance between adjacent photovoltaic devices; b. The controller controls the motors in the left and right longitudinal beams of each inner frame to operate, driving each roller (205) to rotate, thereby driving each inner frame to move longitudinally along the supporting device (1) on the outer frame to control the radial spacing between adjacent photovoltaic devices (3); c. The controller controls the corresponding motor in each photovoltaic device (3) to operate, driving each driving wheel (303) to rotate, thereby driving each photovoltaic device (3) to move laterally along the supporting device (1) on the inner frame, so as to control the axial spacing between adjacent photovoltaic devices (3); d. The controller controls the corresponding motor in each photovoltaic device (3) to operate, driving the assembly to rotate, so as to adjust the orientation of each assembly.

9. The working method of the wind-resistant graphene photovoltaic panel array according to claim 8, characterized in that: The orientation of each assembly is adjusted so that one of the symmetry planes (312) is parallel to the wind direction.

10. The working method of the wind-resistant graphene photovoltaic panel array according to claim 9, characterized in that: In the direction of sunlight, the maximum projection radius of the upstream photovoltaic device is R1, the equilateral triangle radius of the cross section of the downstream photovoltaic device itself is R2, and the center distance Q between the upstream and downstream adjacent photovoltaic devices (3) is Q=R1+R2.

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