Light reflecting material control method, device, equipment and storage medium

Abstract

This invention belongs to the field of photovoltaic technology and discloses a method, device, equipment, and storage medium for controlling reflective materials. The invention determines the tracking angle of the photovoltaic tracking bracket based on the solar altitude angle and solar azimuth angle. Then, it determines the width of the bright area corresponding to the bright area below the photovoltaic module based on the tracking angle. Finally, it adjusts the orientation of a preset reflective material based on the width of the bright area to obtain the optimal orientation of the preset reflective material. This invention can accurately obtain the tracking angle of the photovoltaic tracking bracket based on the solar altitude angle and solar azimuth angle, and adjust the orientation of the preset reflective material based on the width of the bright area. It can adjust the position and angle of the preset reflective material based on the width of the bright area, allowing the preset reflective material to be adjusted to the optimal position. This fully utilizes the power generation gain of the back side of the photovoltaic module, thereby increasing the power generation of the photovoltaic module.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic technology, and in particular to a method, apparatus, equipment and storage medium for controlling reflective materials. Background Technology

[0002] With the development of photovoltaic (PV) tracking systems, improvements have primarily focused on structural aspects, such as flexible tracking, flexible fixing, structural stress, and the system itself. PV tracking supports are typically tall and long, with minimal obstruction and ample space. Currently, bifacial PV modules are commonly used. Adding reflective material beneath the PV modules can fully utilize the power generation gain from the back side. Therefore, effectively adjusting the reflective material to increase the power generation of the PV modules has become a pressing issue. Summary of the Invention

[0003] The main objective of this invention is to provide a method, apparatus, device, and storage medium for controlling reflective materials, aiming to solve the technical problem of how to effectively adjust reflective materials and improve the power generation of photovoltaic modules.

[0004] To achieve the above objectives, the present invention provides a method for controlling reflective materials, the method comprising the following steps:

[0005] The tracking angle of the photovoltaic tracking bracket is determined based on the solar altitude angle and solar azimuth angle.

[0006] The width of the bright area corresponding to the bright area below the photovoltaic module is determined based on the tracking angle.

[0007] The orientation of the preset reflective material is adjusted based on the width of the bright area to obtain the optimal orientation corresponding to the preset reflective material.

[0008] Optionally, the optimal orientation includes: optimal position and / or optimal angle;

[0009] The step of adjusting the orientation of the preset reflective material based on the width of the bright area to obtain the optimal orientation corresponding to the preset reflective material specifically includes:

[0010] The position of the preset reflective material is adjusted based on the width of the bright area to obtain the optimal position corresponding to the preset reflective material;

[0011] And / or adjust the angle of the moved reflective material to obtain the optimal angle corresponding to the moved reflective material.

[0012] Optionally, the optimal position includes: the target's horizontal optimal position and the target's vertical optimal position;

[0013] The step of adjusting the position of the preset reflective material based on the width of the bright area to obtain the optimal position corresponding to the preset reflective material specifically includes:

[0014] At the initial height, the preset reflective material is moved horizontally based on the width of the bright area to obtain the initial optimal horizontal position of the preset reflective material at the initial height.

[0015] After the horizontal movement is completed, the reflective material that has been horizontally moved is then moved vertically and horizontally in sequence to obtain the optimal position corresponding to the preset reflective material.

[0016] Optionally, the step of horizontally moving the preset reflective material based on the width of the bright area at the initial height to obtain the initial optimal horizontal position of the preset reflective material at the initial height specifically includes:

[0017] At the initial height, obtain the relative height between the preset reflective material and the center point of the photovoltaic array;

[0018] When the width of the bright area is greater than the width of the preset reflective material, the relative distance between the center of the bright area and the pile foundation is determined based on the relative height, the width of the photovoltaic array surface, the tracking angle, the solar altitude angle, and the width of the bright area.

[0019] Based on the relative distance, the preset reflective material is horizontally moved to the middle position of the bright area, and the center position of the reflective material after horizontal movement is taken as the initial optimal horizontal position at the initial height;

[0020] When the width of the bright area is less than or equal to the width of the preset reflective material, the preset reflective material is moved horizontally to the bright area, and the center position of the horizontally moved reflective material is taken as the initial horizontal optimal position at the initial height, and the horizontally moved reflective material fills the bright area.

[0021] Optionally, the step of sequentially moving the reflective material vertically and horizontally after the horizontal movement is completed to obtain the optimal vertical position of the target corresponding to the preset reflective material specifically includes:

[0022] After the horizontal movement is completed, the current position of the reflective material after the horizontal movement is taken as the initial position, and the sum of the initial front and back irradiance of the photovoltaic module at the initial position is obtained.

[0023] Within a preset moving range, the reflective material at the initial position is moved vertically in the first moving direction according to a preset step size to obtain the first height corresponding to the reflective material after the vertical movement, and then moved horizontally to the first optimal horizontal position below the first height. The position after the movement is taken as the first position, and the total irradiance of the first front and back sides of the photovoltaic module at the first position is determined.

[0024] When the sum of the first front and back irradiance is greater than the initial sum of the front and back irradiance, the first position is taken as the new initial position, and the step of vertically moving the reflective material at the initial position according to the first moving direction within the preset moving range by a preset step size is returned until the new first instantaneous sum of the front and back irradiance is less than or equal to the new initial sum of the front and back irradiance. The current position corresponding to the new initial sum of the front and back irradiance is taken as the optimal position corresponding to the preset reflective material.

[0025] Optionally, before the step of determining when the sum of the first front and back irradiance is greater than the initial sum of the front and back irradiance, the method further includes:

[0026] When the sum of the first front and back irradiance is less than or equal to the initial sum of the front and back irradiance, the reflective material at the initial position is moved vertically within the preset moving range according to the second moving direction and the preset step size, to obtain the second height corresponding to the reflective material after the vertical movement, and then moved horizontally to the second optimal horizontal position under the second height. The position after the movement is taken as the second position, and the second sum of the front and back irradiance corresponding to the photovoltaic module under the second position is determined.

[0027] When the sum of the second front and back irradiance is greater than the sum of the initial front and back irradiance, the second position is taken as the new initial position, and the step of vertically moving the reflective material at the initial position according to the second moving direction within the preset moving range according to the preset step size is returned until the new second instantaneous sum of the front and back irradiance is less than or equal to the new initial sum of the front and back irradiance. The current position corresponding to the new initial sum of the front and back irradiance is taken as the optimal position corresponding to the preset reflective material.

[0028] When the sum of the second front and back irradiance is less than or equal to the sum of the initial front and back irradiance, the initial position is taken as the optimal position corresponding to the preset reflective material.

[0029] Optionally, the step of determining the width of the bright area corresponding to the bright area below the photovoltaic module based on the tracking angle specifically includes:

[0030] The limiting angle is calculated based on the tracking angle, the solar altitude angle, the photovoltaic array spacing, and the photovoltaic array width.

[0031] When the solar altitude angle is greater than the extreme angle, it is determined that there is a bright area below the photovoltaic module, and the relative height between the preset reflective material and the center point of the photovoltaic array is obtained;

[0032] The width of the bright area corresponding to the bright area is determined based on the relative height, the spacing between the photovoltaic arrays, the solar altitude angle, the width of the photovoltaic array surface, and the tracking angle.

[0033] Optionally, after the step of adjusting the position of the preset reflective material based on the width of the bright area to obtain the optimal position corresponding to the preset reflective material, the method further includes:

[0034] Obtain the module current corresponding to each photovoltaic module in the same photovoltaic string, and segment the preset reflective material according to the module current;

[0035] The orientation of the segmented reflective material is adjusted based on the component current to obtain the optimal target orientation corresponding to the segmented reflective material.

[0036] Optionally, the step of adjusting the orientation of the segmented reflective material based on the component current to obtain the optimal target orientation corresponding to the segmented reflective material specifically includes:

[0037] Obtain the middle reflective material from the segmented reflective material;

[0038] Starting from the intermediate reflective material, the orientation of the segmented reflective material is adjusted based on the component current to obtain the initial optimal orientation of the segmented reflective material.

[0039] Obtain the initial power generation when the segmented reflective material is in the initial optimal orientation and the target power generation when the segmented reflective material is in the optimal position;

[0040] The optimal target orientation corresponding to the segmented reflective material is determined based on the initial power generation and the target power generation.

[0041] Optionally, the step of determining the optimal target orientation corresponding to the segmented reflective material based on the initial power generation and the target power generation specifically includes:

[0042] When the initial power generation is greater than the target power generation, the initial optimal orientation is taken as the target optimal orientation corresponding to the segmented reflective material;

[0043] When the initial power generation is less than or equal to the target power generation, the optimal position is taken as the target optimal orientation corresponding to the segmented reflective material.

[0044] Furthermore, to achieve the above objectives, the present invention also provides a reflective material control device, the reflective material control device comprising:

[0045] Angle determination module, used to determine the tracking angle of the photovoltaic tracking bracket based on the solar altitude angle and solar azimuth angle;

[0046] A width determination module is used to determine the width of the bright area corresponding to the bright area below the photovoltaic module based on the tracking angle.

[0047] The orientation adjustment module is used to adjust the orientation of the preset reflective material based on the width of the bright area to obtain the optimal orientation corresponding to the preset reflective material.

[0048] Furthermore, to achieve the above objectives, the present invention also proposes a reflective material control device, the reflective material control device comprising: a memory, a processor, and a reflective material control program stored in the memory and executable on the processor, the reflective material control program being configured to implement the steps of the reflective material control method as described above.

[0049] In addition, to achieve the above objectives, the present invention also proposes a storage medium storing a reflective material control program, which, when executed by a processor, implements the steps of the reflective material control method as described above.

[0050] This invention determines the tracking angle of a photovoltaic (PV) tracking bracket based on the solar altitude angle and solar azimuth angle. Then, it determines the width of the bright area below the PV module based on the tracking angle. Finally, it adjusts the orientation of a pre-set reflective material based on the width of the bright area to obtain the optimal orientation for the reflective material. This invention can accurately obtain the tracking angle of the PV tracking bracket based on the solar altitude angle and solar azimuth angle, and adjust the orientation of the pre-set reflective material based on the width of the bright area. It can adjust the position and angle of the pre-set reflective material based on the width of the bright area, placing it in an optimal position. This fully utilizes the power generation gain of the back side of the PV module, thereby increasing the power generation of the PV module. Attached Figure Description

[0051] Figure 1 This is a schematic diagram of the structure of the reflective material control device in the hardware operating environment involved in the embodiments of the present invention;

[0052] Figure 2 This is a flowchart illustrating the first embodiment of the reflective material control method of the present invention;

[0053] Figure 3 This is a schematic diagram of a photovoltaic tracking bracket according to an embodiment of the reflective material control method of the present invention;

[0054] Figure 4 This is a side view of a photovoltaic tracking bracket and a reflective material according to an embodiment of the reflective material control method of the present invention;

[0055] Figure 5 This is a schematic diagram illustrating the control of a preset reflective material according to an embodiment of the reflective material control method of the present invention;

[0056] Figure 6 This is a flowchart illustrating the second embodiment of the reflective material control method of the present invention;

[0057] Figure 7 This is a flowchart illustrating the third embodiment of the reflective material control method of the present invention;

[0058] Figure 8 This is a schematic diagram of the segmented reflective material according to an embodiment of the reflective material control method of the present invention;

[0059] Figure 9 This is a structural block diagram of the first embodiment of the reflective material control device of the present invention.

[0060] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0061] It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the invention.

[0062] Reference Figure 1 , Figure 1 This is a schematic diagram of the reflective material control device structure in the hardware operating environment involved in the embodiments of the present invention.

[0063] like Figure 1As shown, the reflective material control device may include: a processor 1001, such as a central processing unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. The communication bus 1002 is used to enable communication between these components. The user interface 1003 may include a display screen or an input unit such as a keyboard; optionally, the user interface 1003 may also include a standard wired interface or a wireless interface. The network interface 1004 may optionally include a standard wired interface or a wireless interface (such as a Wireless-Fidelity (Wi-Fi) interface). The memory 1005 may be high-speed random access memory (RAM) or stable non-volatile memory (NVM), such as a disk storage device. Optionally, the memory 1005 may also be a storage device independent of the aforementioned processor 1001.

[0064] Those skilled in the art will understand that Figure 1 The structure shown does not constitute a limitation on the reflective material control device and may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0065] like Figure 1 As shown, the memory 1005, which serves as a storage medium, may include an operating system, a network communication module, a user interface module, and a reflective material control program.

[0066] exist Figure 1 In the reflective material control device shown, the network interface 1004 is mainly used for data communication with the network server; the user interface 1003 is mainly used for data interaction with the user; the processor 1001 and the memory 1005 in the reflective material control device of the present invention can be set in the reflective material control device, and the reflective material control device calls the reflective material control program stored in the memory 1005 through the processor 1001 and executes the reflective material control method provided in the embodiment of the present invention.

[0067] Based on the aforementioned reflective material control device, this embodiment of the invention provides a reflective material control method, referring to... Figure 2 , Figure 2 This is a flowchart illustrating the first embodiment of the reflective material control method of the present invention.

[0068] In this embodiment, the method for controlling reflective materials includes the following steps:

[0069] Step S10: Determine the tracking angle of the photovoltaic tracking bracket based on the solar altitude angle and solar azimuth angle.

[0070] It should be noted that the execution subject of this embodiment can be a computer.

[0071] It should be understood that, referring to Figure 3 , Figure 3 This is a schematic diagram of a photovoltaic tracking bracket according to an embodiment of the reflective material control method of the present invention. (Refer to...) Figure 4 , Figure 4 This is a side view of a photovoltaic tracking bracket and a reflective material according to an embodiment of the reflective material control method of the present invention. The reflective material can be placed below adjacent photovoltaic modules and can be adjusted by a sliding rod.

[0072] Understandably, the tracking angle of a photovoltaic (PV) tracking bracket can be calculated using astronomical algorithms based on the solar altitude angle and solar azimuth angle. The tracking angle can be the angle between the PV module above the tracking bracket and the horizontal plane, as referenced. Figure 5 , Figure 5 This is a schematic diagram illustrating the control of a preset reflective material according to an embodiment of the reflective material control method of the present invention. Figure 5 The two vertical lines in the diagram can be represented as two photovoltaic tracking brackets, with photovoltaic modules placed on top of the tracking brackets, and 'a' representing the tracking angle.

[0073] Step S20: Determine the width of the bright area corresponding to the bright area below the photovoltaic module based on the tracking angle.

[0074] It should be understood that the bright area can be a bright area formed by direct sunlight between adjacent photovoltaic modules, and there are no obstructions in this bright area, such as... Figure 5 The width of the bright area can be calculated based on the tracking angle.

[0075] Furthermore, in order to accurately obtain the width of the bright area, in this embodiment, step S20 includes: calculating the limiting angle based on the tracking angle, the solar altitude angle, the photovoltaic array spacing, and the photovoltaic array surface width; when the solar altitude angle is greater than the limiting angle, determining that there is a bright area below the photovoltaic module, and obtaining the relative height between the preset reflective material and the center point of the photovoltaic array; and determining the width of the bright area corresponding to the bright area based on the relative height, the photovoltaic array spacing, the solar altitude angle, the photovoltaic array surface width, and the tracking angle.

[0076] Understandably, the limiting angle can be calculated using the following formula. The limiting angle can be the maximum solar altitude angle that can form a bright area, that is, the angle between the maximum direct ray and the horizontal plane. The specific formula is as follows: In the formula, α represents the limiting angle, β represents the solar altitude angle, d represents the photovoltaic array spacing, L represents the photovoltaic array width, and a represents the tracking angle.

[0077] It should be understood that when the solar altitude angle is greater than the extreme angle, it indicates that there is a bright area below the photovoltaic module. The relative height between the preset reflective material and the center point of the photovoltaic array can then be obtained, i.e., the vertical distance between the center point of the preset reflective material and the center point of the photovoltaic array. Figure 5 h is used to calculate the width of the bright area using the following formula. In the formula, D represents the width of the illuminated area, d represents the spacing between photovoltaic arrays, β represents the solar altitude angle, a represents the tracking angle, L represents the width of the photovoltaic array surface, and h represents the relative height.

[0078] Step S30: Adjust the orientation of the preset reflective material based on the width of the bright area to obtain the optimal orientation corresponding to the preset reflective material.

[0079] In practical implementation, orientation adjustment can include adjusting the position of the preset reflective material, adjusting the angle of the preset reflective material, or adjusting both the angle and position of the preset reflective material simultaneously. Specifically, the orientation adjustment of the preset reflective material can be achieved based on the width of the illuminated area. The preset reflective material can be moved to a position that coincides with the width of the illuminated area so that the moved reflective material receives all sunlight rays. The adjusted position can be taken as the optimal orientation of the preset reflective material.

[0080] This embodiment determines the tracking angle of the photovoltaic tracking bracket based on the solar altitude angle and solar azimuth angle. Then, based on the tracking angle, it determines the width of the bright area corresponding to the bright area below the photovoltaic module. Finally, based on the width of the bright area, it adjusts the orientation of the preset reflective material to obtain its optimal position. This embodiment can accurately obtain the tracking angle of the photovoltaic tracking bracket based on the solar altitude angle and solar azimuth angle, and adjust the orientation of the preset reflective material based on the width of the bright area. It can adjust the position and angle of the preset reflective material based on the width of the bright area, placing it in an optimal position. This fully utilizes the power generation gain of the back side of the photovoltaic module, thereby increasing the power generation of the photovoltaic module.

[0081] refer to Figure 6 , Figure 6 This is a flowchart illustrating the second embodiment of the reflective material control method of the present invention.

[0082] Based on the first embodiment described above, in this embodiment, step S30 includes:

[0083] Step S301: Adjust the position of the preset reflective material based on the width of the bright area to obtain the optimal position corresponding to the preset reflective material.

[0084] It is understood that in this embodiment, the position of the preset reflective material can be adjusted based on the width of the bright area. The adjustment can be made in the horizontal direction or in the vertical direction to obtain the optimal position corresponding to the preset reflective material. The optimal position may include the optimal horizontal position and the optimal vertical position.

[0085] Furthermore, in order to effectively adjust the position of the preset reflective material, in this embodiment, step S301 includes: at the initial height, moving the preset reflective material horizontally based on the width of the bright area to obtain the initial optimal horizontal position of the preset reflective material at the initial height; after the horizontal movement is completed, moving the horizontally moved reflective material vertically and horizontally in sequence to obtain the optimal position corresponding to the preset reflective material.

[0086] It should be understood that in this embodiment, the preset reflective material can first be moved horizontally at an initial height, that is, the preset reflective material is not moved vertically, keeping the initial height unchanged. The initial height can be the height initially set for the preset reflective material. The preset reflective material is then moved left and right horizontally to obtain the initial optimal horizontal position of the preset reflective material at that initial height. Specifically, the preset reflective material can be moved horizontally to a position coinciding with the bright area. Then, the reflective material after horizontal movement is moved vertically and horizontally in sequence, that is, first moved up and down vertically, and then moved horizontally after the vertical movement is completed to obtain the optimal position corresponding to the preset reflective material. For example, the reflective material after horizontal movement is moved downward or upward by a preset step length. After the upward or downward movement is completed, it is moved horizontally at that height in the same way as the horizontal movement at the initial height. Therefore, in this embodiment, several sets of optimal horizontal positions at the height after vertical movement can be obtained, and one set of optimal horizontal positions after vertical movement and corresponding optimal horizontal positions can be selected as the optimal position corresponding to the preset reflective material.

[0087] Furthermore, to obtain an accurate initial horizontal optimal position, in this embodiment, the step of horizontally moving the preset reflective material based on the width of the bright area at the initial height to obtain the initial horizontal optimal position of the preset reflective material at the initial height specifically includes: obtaining the relative height between the preset reflective material and the center point of the photovoltaic array at the initial height; when the width of the bright area is greater than the material width of the preset reflective material, determining the relative distance between the middle position of the bright area and the pile foundation based on the relative height, the width of the photovoltaic array surface, the tracking angle, the solar altitude angle, and the width of the bright area; horizontally moving the preset reflective material to the middle position of the bright area based on the relative distance, and taking the center position of the horizontally moved reflective material as the initial horizontal optimal position at the initial height; when the width of the bright area is less than or equal to the material width of the preset reflective material, horizontally moving the preset reflective material to the bright area, and taking the center position of the horizontally moved reflective material as the initial horizontal optimal position at the initial height, wherein the horizontally moved reflective material fills the bright area.

[0088] Understandably, since the relative height h used to calculate the width of the illuminated area is related to the initial height, the width of the illuminated area is also related to the initial height. When the width of the illuminated area at this initial height is greater than the width of the preset reflective material, the relative distance between the center of the illuminated area and the pile foundation can be calculated using the following formula: Figure 5 l in In the formula, l represents the relative distance between the center of the illuminated area and the pile foundation, h represents the relative height, L represents the width of the photovoltaic array surface, a represents the tracking angle, β represents the solar altitude angle, and D represents the width of the illuminated area.

[0089] It should be understood that after obtaining the relative distance between the center position of the bright area and the pile foundation, the center position of the preset reflective material can be moved horizontally to the center position of the bright area. Specifically, the relative distance between the center position of the preset reflective material and the pile foundation can be obtained. The difference between the two relative distances can be used as the distance that the preset reflective material needs to be moved horizontally, and the center position of the reflective material after horizontal movement can be used as the initial horizontal optimal position at the initial height.

[0090] In the specific implementation, when the width of the bright area is less than or equal to the width of the preset reflective material, it means that the preset reflective material can be completely placed in the bright area. At this time, the preset reflective material can be directly moved horizontally into the bright area. The reflective material after horizontal movement fills the bright area, and the center position of the reflective material after horizontal movement is taken as the initial horizontal optimal position at the initial height.

[0091] Furthermore, to obtain an accurate target vertical optimal position, in this embodiment, after the horizontal movement is completed, the current position corresponding to the reflective material after the horizontal movement is taken as the initial position, and the initial sum of front and back irradiance corresponding to the photovoltaic module at the initial position is obtained; within a preset movement range, the reflective material at the initial position is vertically moved according to a first movement direction with a preset step size to obtain a first height corresponding to the vertically moved reflective material, and then horizontally moved to a first horizontal optimal position at the first height, and the moved position is taken as the first position, and the first sum of front and back irradiance corresponding to the photovoltaic module at the first position is determined; when the first sum of front and back irradiance is greater than the initial sum of front and back irradiance, the first position is taken as the new initial position, and the step of vertically moving the reflective material at the initial position according to a preset step size within the preset movement range according to the first movement direction is returned, until the new first instantaneous sum of front and back irradiance is less than or equal to the new initial sum of front and back irradiance, and the current position corresponding to the new initial sum of front and back irradiance is taken as the optimal position corresponding to the preset reflective material.

[0092] Understandably, after the horizontal movement is completed, the current position of the reflective material after the horizontal movement can be used as the initial position. That is, after the preset reflective material is moved horizontally to the initial optimal horizontal position at the initial height, the initial height and the initial optimal horizontal position are used as the initial position, and the sum of the initial front and back irradiance of the photovoltaic module at the initial position is obtained, that is, the front irradiance of the photovoltaic module plus the back irradiance.

[0093] It should be understood that after the horizontal movement is completed, the reflective material after the horizontal movement can be moved in the first moving direction. In this embodiment, the first moving direction can be upward or downward. The second moving direction is the opposite of the first moving direction. For example, if the first moving direction is upward, the second moving direction is downward. This embodiment is described with the first moving direction being downward. After the reflective material after the horizontal movement is moved downward within the preset moving range by a preset step length, the height corresponding to this position can be taken as the first height. Since the relative height h between the reflective material and the photovoltaic module will change at this time, the width of the bright area will also change. The width of the first bright area will be obtained according to the first height. Based on the width of the first bright area, the reflective material after the vertical movement can be moved horizontally again to the first optimal horizontal position under the first height. The position after the movement is taken as the first position. The height of the first position is the first height mentioned above. The horizontal position of the first position is the first optimal horizontal position mentioned above. Then, the total irradiance of the first front and back sides of the photovoltaic module corresponding to the first position is calculated.

[0094] In the specific implementation, when the sum of the first front and back irradiance is greater than the initial sum of the front and back irradiance, the first position can be used as the new initial position. At this time, it is necessary to continue to move downward by a preset step within the preset movement range to obtain a new sum of the first front and back irradiance. If the new sum of the first front and back irradiance is greater than the new sum of the initial front and back irradiance, it is necessary to continue to move downward by a preset step within the preset movement range. After each downward movement by a preset step, a new sum of the first front and back irradiance and a new sum of the initial front and back irradiance can be obtained. When the new sum of the first front and back irradiance is less than or equal to the new sum of the initial front and back irradiance, the current position corresponding to the new sum of the initial front and back irradiance is used as the optimal position corresponding to the preset reflective material, that is, the position above the current position of the preset reflective material is used as the optimal position.

[0095] Further, in this embodiment, before the step of when the sum of the first front and back irradiance is greater than the initial sum of the front and back irradiance, the method further includes: when the sum of the first front and back irradiance is less than or equal to the initial sum of the front and back irradiance, vertically moving the reflective material at the initial position within the preset moving range according to the second moving direction and the preset step size, obtaining the second height corresponding to the vertically moved reflective material, and then horizontally moving it to the second optimal horizontal position below the second height, and taking the moved position as the second position, determining the second sum of the front and back irradiance corresponding to the photovoltaic module at the second position; in the second front When the total irradiance on the reverse side is greater than the initial total irradiance on both the front and back sides, the second position is taken as the new initial position, and the process of vertically moving the reflective material at the initial position according to the second moving direction within the preset moving range according to the preset step size is repeated until the new second instantaneous total irradiance on both the front and back sides is less than or equal to the new initial total irradiance on both the front and back sides. The current position corresponding to the new initial total irradiance on both the front and back sides is taken as the optimal position corresponding to the preset reflective material. When the second total irradiance on both the front and back sides is less than or equal to the initial total irradiance on both the front and back sides, the initial position is taken as the optimal position corresponding to the preset reflective material.

[0096] Understandably, if the sum of the initial front and back irradiance obtained after moving the preset reflective material downward by a preset step length is less than or equal to the initial sum of the front and back irradiance, the reflective material at the initial position can be moved in the second moving direction. In this embodiment, the second moving direction is described as upward movement. After moving the horizontally moved reflective material upward by a preset step length within the preset moving range, the height corresponding to this position can be taken as the second height. Since the relative height h between the reflective material and the photovoltaic module will change at this time, the width of the bright area will also change. The second bright area width will be obtained according to the second height. Based on the second bright area width, the vertically moved reflective material can be moved horizontally again to the second optimal horizontal position under the second height. The position after the movement is taken as the second position. The height of the second position is the second height, and the horizontal position of the second position is the second optimal horizontal position. Then, the sum of the second front and back irradiance corresponding to the photovoltaic module at the second position is calculated.

[0097] It should be understood that when the sum of the second and reverse irradiance is greater than the initial sum of the second and reverse irradiance, the second position can be used as the new initial position. At this time, it is necessary to continue to move upward by a preset step within the preset movement range to obtain a new sum of the second and reverse irradiance. If the new sum of the second and reverse irradiance is greater than the new sum of the initial sum of the second and reverse irradiance, it is necessary to continue to move upward by a preset step within the preset movement range. After each upward movement by a preset step, a new sum of the second and reverse irradiance and a new sum of the initial sum of the second and reverse irradiance can be obtained. When the new sum of the second and reverse irradiance is less than or equal to the new sum of the initial sum of the second and reverse irradiance, the current position corresponding to the new sum of the initial sum of the second and reverse irradiance is used as the optimal position corresponding to the preset reflective material, that is, the position above the current position of the preset reflective material is used as the optimal position.

[0098] In a specific implementation, if the sum of the first front and back irradiance obtained after moving the horizontally moved reflective material one preset step length in the first moving direction is less than or equal to the initial sum of the front and back irradiance, and the sum of the second front and back irradiance obtained after moving the horizontally moved reflective material one preset step length in the second moving direction is less than or equal to the initial sum of the front and back irradiance, it indicates that the sum of the irradiance at the initial position corresponding to the horizontally moved reflective material is the largest. In this case, the initial position can be taken as the optimal position corresponding to the preset reflective material.

[0099] Step S302: and / or adjust the angle of the moved reflective material to obtain the optimal angle corresponding to the moved reflective material.

[0100] Understandably, in addition to adjusting the position of the preset reflective material, this embodiment can also adjust the angle of the moved reflective material, or directly adjust the angle of the preset reflective material. Specifically, the method for adjusting the angle of the moved reflective material can be to first adjust the angle of the moved reflective material to be consistent with the photovoltaic module, and calculate the instantaneous irradiance at the current moment, and then fine-tune the angle. First, rotate the preset unit angle counterclockwise and calculate the first instantaneous irradiance. If the first instantaneous irradiance is greater than the above instantaneous irradiance, rotate the preset unit angle counterclockwise again and calculate the second instantaneous irradiance. If the second instantaneous irradiance is greater than the first instantaneous irradiance, continue to rotate the preset unit angle counterclockwise to obtain the third instantaneous irradiance. If the third instantaneous irradiance is less than the second instantaneous irradiance, the angle corresponding to the second instantaneous irradiance can be taken as the optimal angle. If the first instantaneous irradiance is less than the above instantaneous irradiance, rotate the preset unit angle clockwise, and so on, taking the angle corresponding to the maximum instantaneous irradiance as the optimal angle corresponding to the moved reflective material. When the tracking angle changes, the optimal position and angle of the preset reflective material will also change.

[0101] This embodiment adjusts the position of a preset reflective material based on the width of the bright area to obtain the optimal position of the preset reflective material, and / or adjusts the angle of the moved reflective material to obtain the optimal angle of the moved reflective material. This embodiment first adjusts the position of the preset reflective material based on the width of the bright area, and then adjusts the angle and / or position of the moved reflective material to obtain the optimal position and optimal angle of the preset reflective material.

[0102] refer to Figure 7 , Figure 7 This is a flowchart illustrating the third embodiment of the reflective material control method of the present invention.

[0103] Based on the above embodiments, in this embodiment, after step S301, the method further includes:

[0104] Step S303: Obtain the module current corresponding to each photovoltaic module in the same photovoltaic string, and segment the preset reflective material according to the module current.

[0105] Understandably, for photovoltaic modules in the same photovoltaic string, the module current corresponding to each photovoltaic module can be obtained, and the pre-defined reflective material can be segmented according to the module current. Specifically, the reflective material under modules with similar currents can be grouped into the same segment to obtain the segmented reflective material. Figure 8 , Figure 8 This is a schematic diagram of the segmented reflective material according to an embodiment of the reflective material control method of the present invention. Figure 8The number of segments is only for illustrative purposes, and this embodiment does not impose any specific limitations on it.

[0106] Step S304: Adjust the orientation of the segmented reflective material based on the component current to obtain the target optimal orientation corresponding to the segmented reflective material.

[0107] Understandably, due to the sag of flexible modules, when a long row is used as a string, each photovoltaic module receives different levels of irradiance, leading to inconsistent currents and consequently significant mismatch losses. By using segmented adjustment of the reflective material, the irradiance can be "equalized" to some extent, reducing mismatch losses and increasing power generation. This embodiment is compatible with module current monitoring strategies, dynamically adjusting the reflective material in stages to ensure that the module currents throughout the string are essentially consistent, thus minimizing mismatch losses.

[0108] It should be understood that the orientation of each segment of reflective material can be adjusted separately, that is, the direction and position of each segment of reflective material can be adjusted separately to obtain the optimal target position corresponding to each segment of reflective material.

[0109] Furthermore, in order to accurately obtain the target optimal orientation corresponding to the segmented reflective material, in this embodiment, step S304 includes: obtaining the intermediate reflective material in the segmented reflective material; taking the intermediate reflective material as the starting point, adjusting the orientation of the segmented reflective material according to the component current to obtain the initial optimal orientation corresponding to the segmented reflective material; obtaining the initial power generation of the segmented reflective material when it is in the initial optimal orientation and the target power generation of the segmented reflective material when it is in the optimal position; and determining the target optimal orientation corresponding to the segmented reflective material based on the initial power generation and the target power generation.

[0110] Understandably, the middle reflective material refers to the middle section of the segmented reflective material. Then, starting from the middle reflective material, the orientation is adjusted sequentially towards both ends. That is, the orientation of the middle reflective material is adjusted first, and then the orientation of the two adjacent reflective materials is adjusted, and so on, until the orientation of each reflective material is adjusted, thus obtaining the initial optimal orientation of the segmented reflective material. Orientation adjustment allows for adjustment of both position and angle. Position adjustment can involve moving left and right or up and down. A preset distance can be moved left, right, up, or down to obtain the first intermediate module current of the photovoltaic module corresponding to the moved intermediate reflective material. If the difference between this first intermediate module current and the currents of the two end modules is within the allowable error range, this position can be considered the optimal intermediate position for the intermediate reflective material. Angle adjustment can also involve rotating counterclockwise or clockwise by a preset angle to obtain the second intermediate module current of the photovoltaic module corresponding to the rotated intermediate reflective material at that angle. If the difference between this second intermediate module current and the currents of the two end modules is within the allowable error range, this angle can be considered the optimal intermediate angle for the intermediate reflective material. The optimal intermediate position and angle can be considered the optimal intermediate orientation for the intermediate reflective material. The orientation adjustment method for the remaining reflective material segments can also refer to the above method for adjusting the orientation of the intermediate reflective material, ultimately yielding the initial optimal orientation for the segmented reflective material.

[0111] It should be understood that after adjusting the orientation of the segmented reflective material, the initial power generation of all photovoltaic modules can be calculated. Then, the target power generation when the segmented reflective material is in its optimal position can be calculated. Specifically, the target irradiance when the segmented reflective material is in its optimal position can be obtained first, and then the target power generation can be obtained based on the target irradiance. Finally, the optimal orientation of the segmented reflective material can be determined based on the initial power generation and the target power generation.

[0112] Furthermore, in this embodiment, the step of determining the target optimal orientation corresponding to the segmented reflective material based on the initial power generation and the target power generation specifically includes: when the initial power generation is greater than the target power generation, taking the initial optimal orientation as the target optimal orientation corresponding to the segmented reflective material; when the initial power generation is less than or equal to the target power generation, taking the optimal position as the target optimal orientation corresponding to the segmented reflective material.

[0113] Understandably, when the initial power generation is greater than the target power generation, the initial optimal orientation can be used as the target optimal orientation for the segmented reflective material; when the initial power generation is less than or equal to the target power generation, the optimal position can be used as the target optimal orientation for the segmented reflective material, keeping the position of the segmented reflective material unchanged.

[0114] It should be understood that when the tracking angle changes, the optimal target orientation corresponding to the segmented reflective material can be determined for the next cycle.

[0115] In specific implementation, the process of adjusting the orientation of the segmented reflective materials described above in this embodiment can be after the position adjustment step in the second embodiment, or after the angle adjustment step. In this embodiment, it is preferable to adjust the orientation of the segmented reflective materials after adjusting the position of the preset reflective materials, thereby saving the time of orientation adjustment.

[0116] This embodiment obtains the module current corresponding to each photovoltaic module in the same photovoltaic string, segments the preset reflective material according to the module current, and then adjusts the orientation of the segmented reflective material according to the module current to obtain the target optimal orientation corresponding to the segmented reflective material. This embodiment first segments the preset reflective material according to the module current, and then adjusts the orientation of the segmented reflective material according to the module current. This can take into account the mismatch loss caused by sag, dynamically adjust the segmented reflective material, and maximize the irradiance of the target optimal orientation corresponding to the adjusted segmented reflective material.

[0117] Reference Figure 9 , Figure 9 This is a structural block diagram of the first embodiment of the reflective material control device of the present invention.

[0118] like Figure 9 As shown, the reflective material control device proposed in this embodiment of the invention includes:

[0119] Angle determination module 10 is used to determine the tracking angle of the photovoltaic tracking bracket based on the solar altitude angle and solar azimuth angle;

[0120] Width determination module 20 is used to determine the width of the bright area corresponding to the bright area below the photovoltaic module according to the tracking angle.

[0121] The orientation adjustment module 30 is used to adjust the orientation of the preset reflective material based on the width of the bright area to obtain the optimal orientation corresponding to the preset reflective material.

[0122] This embodiment determines the tracking angle of the photovoltaic tracking bracket based on the solar altitude angle and solar azimuth angle. Then, based on the tracking angle, it determines the width of the bright area corresponding to the bright area below the photovoltaic module. Finally, based on the width of the bright area, it adjusts the orientation of the preset reflective material to obtain its optimal position. This embodiment can accurately obtain the tracking angle of the photovoltaic tracking bracket based on the solar altitude angle and solar azimuth angle, and adjust the orientation of the preset reflective material based on the width of the bright area. It can adjust the position and angle of the preset reflective material based on the width of the bright area, placing it in an optimal position. This fully utilizes the power generation gain of the back side of the photovoltaic module, thereby increasing the power generation of the photovoltaic module.

[0123] It should be noted that the workflow described above is merely illustrative and does not limit the scope of protection of this invention. In practical applications, those skilled in the art can select some or all of the workflow to achieve the purpose of this embodiment according to actual needs, and no restrictions are imposed here.

[0124] In addition, for technical details not described in detail in this embodiment, please refer to the reflective material control method provided in any embodiment of the present invention, which will not be repeated here.

[0125] Based on the first embodiment of the reflective material control device of the present invention, a second embodiment of the reflective material control device of the present invention is proposed.

[0126] In this embodiment, the optimal orientation includes: optimal position and optimal angle; the orientation adjustment module 30 is further configured to adjust the position of the preset reflective material based on the width of the bright area to obtain the optimal position corresponding to the preset reflective material; and / or adjust the angle of the moved reflective material to obtain the optimal angle corresponding to the moved reflective material.

[0127] Furthermore, the optimal position includes: the target horizontal optimal position and the target vertical optimal position; the orientation adjustment module 30 is also used to move the preset reflective material horizontally based on the width of the bright area at the initial height to obtain the initial horizontal optimal position of the preset reflective material at the initial height; after the horizontal movement is completed, the reflective material after the horizontal movement is moved vertically and horizontally in sequence to obtain the optimal position corresponding to the preset reflective material.

[0128] Furthermore, the orientation adjustment module 30 is also used to obtain the relative height between the preset reflective material and the center point of the photovoltaic array at the initial height; when the width of the bright area is greater than the material width of the preset reflective material, determine the relative distance between the middle position of the bright area and the pile foundation according to the relative height, the width of the photovoltaic array surface, the tracking angle, the solar altitude angle, and the width of the bright area; based on the relative distance, move the preset reflective material horizontally to the middle position of the bright area, and take the center position of the horizontally moved reflective material as the initial optimal horizontal position at the initial height; when the width of the bright area is less than or equal to the material width of the preset reflective material, move the preset reflective material horizontally to the bright area, and take the center position of the horizontally moved reflective material as the initial optimal horizontal position at the initial height, wherein the horizontally moved reflective material fills the bright area.

[0129] Furthermore, the orientation adjustment module 30 is also used to, after completing the horizontal movement, take the current position corresponding to the reflective material after the horizontal movement as the initial position, obtain the initial sum of front and back irradiance corresponding to the photovoltaic module at the initial position; move the reflective material at the initial position vertically within a preset movement range according to a first movement direction with a preset step size, obtain the first height corresponding to the vertically moved reflective material, and move it horizontally to the first optimal horizontal position at the first height, and take the moved position as the first position, determine the first sum of front and back irradiance corresponding to the photovoltaic module at the first position; when the first sum of front and back irradiance is greater than the initial sum of front and back irradiance, take the first position as the new initial position, and return to the step of moving the reflective material at the initial position vertically within a preset movement range according to the first movement direction with a preset step size, until the new first instantaneous sum of front and back irradiance is less than or equal to the new initial sum of front and back irradiance, and take the current position corresponding to the new initial sum of front and back irradiance as the optimal position corresponding to the preset reflective material.

[0130] Furthermore, the orientation adjustment module 30 is also configured to, when the sum of the first front and back surface irradiance is less than or equal to the initial sum of the front and back surface irradiance, vertically move the reflective material at the initial position within the preset moving range according to the second moving direction and the preset step size, to obtain the second height corresponding to the reflective material after the vertical movement, and then horizontally move it to the second optimal horizontal position below the second height, and take the moved position as the second position, and determine the second sum of the front and back surface irradiance corresponding to the photovoltaic module at the second position; when the sum of the second front and back surface irradiance is greater than the initial sum of the front and back surface irradiance... When the total irradiance is reached, the second position is taken as the new initial position, and the process of vertically moving the reflective material at the initial position according to the second moving direction within the preset moving range according to the preset step size is repeated until the new second instantaneous sum of front and back irradiance is less than or equal to the new initial sum of front and back irradiance. The current position corresponding to the new initial sum of front and back irradiance is taken as the optimal position corresponding to the preset reflective material. When the second sum of front and back irradiance is less than or equal to the initial sum of front and back irradiance, the initial position is taken as the optimal position corresponding to the preset reflective material.

[0131] Furthermore, the width determination module 20 is also used to calculate the limiting angle based on the tracking angle, the solar altitude angle, the photovoltaic array spacing, and the photovoltaic array surface width; when the solar altitude angle is greater than the limiting angle, it is determined that there is a bright area below the photovoltaic module, and the relative height between the preset reflective material and the center point of the photovoltaic array is obtained; the width of the bright area corresponding to the bright area is determined based on the relative height, the photovoltaic array spacing, the solar altitude angle, the photovoltaic array surface width, and the tracking angle.

[0132] Furthermore, the orientation adjustment module 30 is also used to obtain the component current corresponding to each photovoltaic module in the same photovoltaic string, and to segment the preset reflective material according to the component current; and to adjust the orientation of the segmented reflective material according to the component current to obtain the target optimal orientation corresponding to the segmented reflective material.

[0133] Furthermore, the orientation adjustment module 30 is also used to acquire the intermediate reflective material in the segmented reflective material; using the intermediate reflective material as the starting point, adjust the orientation of the segmented reflective material according to the component current to obtain the initial optimal orientation of the segmented reflective material; acquire the initial power generation of the segmented reflective material when it is in the initial optimal orientation and the target power generation of the segmented reflective material when it is in the optimal position; and determine the target optimal orientation of the segmented reflective material according to the initial power generation and the target power generation.

[0134] Furthermore, the orientation adjustment module 30 is also used to take the initial optimal orientation as the target optimal orientation corresponding to the segmented reflective material when the initial power generation is greater than the target power generation; and to take the optimal position as the target optimal orientation corresponding to the segmented reflective material when the initial power generation is less than or equal to the target power generation.

[0135] Other embodiments or specific implementations of the reflective material control device of the present invention can be referred to the above-described method embodiments, and will not be repeated here.

[0136] Furthermore, this embodiment of the invention also proposes a storage medium storing a reflective material control program, which, when executed by a processor, implements the steps of the reflective material control method described above.

[0137] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or system. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or system that includes that element.

[0138] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0139] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as read-only memory / random access memory, magnetic disk, optical disk) and includes several instructions to cause a terminal device (which may be a mobile phone, computer, server, or network device, etc.) to execute the methods described in the various embodiments of the present invention.

[0140] The above are merely preferred embodiments of the present invention and do not limit the scope of the patent. Any equivalent structural or procedural transformations made based on the description and drawings of the present invention, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of the present invention.

Claims

1. A method of controlling a retroreflective material, comprising: The method for controlling reflective materials includes the following steps: The tracking angle of the photovoltaic tracking bracket is determined based on the solar altitude angle and solar azimuth angle. The width of the bright area corresponding to the bright area below the photovoltaic module is determined based on the tracking angle. The orientation of the preset reflective material is adjusted based on the width of the bright area to obtain the optimal orientation of the preset reflective material, wherein the optimal orientation includes the optimal position. The step of adjusting the position of the preset reflective material based on the width of the bright area to obtain the optimal position corresponding to the preset reflective material specifically includes: At the initial height, the preset reflective material is moved horizontally based on the width of the bright area to obtain the initial optimal horizontal position of the preset reflective material at the initial height. After the horizontal movement is completed, the current position of the reflective material after the horizontal movement is taken as the initial position, and the sum of the initial front and back irradiance of the photovoltaic module at the initial position is obtained. Within a preset moving range, the reflective material at the initial position is moved vertically in the first moving direction according to a preset step size to obtain the first height corresponding to the reflective material after the vertical movement, and then moved horizontally to the first optimal horizontal position below the first height. The position after the movement is taken as the first position, and the total irradiance of the first front and back sides of the photovoltaic module at the first position is determined. When the sum of the first front and back irradiance is greater than the initial sum of the front and back irradiance, the first position is taken as the new initial position, and the step of vertically moving the reflective material at the initial position according to the first moving direction within the preset moving range by a preset step size is returned until the new first instantaneous sum of the front and back irradiance is less than or equal to the new initial sum of the front and back irradiance. The current position corresponding to the new initial sum of the front and back irradiance is taken as the optimal position corresponding to the preset reflective material.

2. The method of claim 1, wherein the step of controlling the reflective material is performed by a computer. The optimal orientation includes: optimal position and / or optimal angle; The step of adjusting the orientation of the preset reflective material based on the width of the bright area to obtain the optimal orientation corresponding to the preset reflective material specifically includes: The position of the preset reflective material is adjusted based on the width of the bright area to obtain the optimal position corresponding to the preset reflective material; And / or adjust the angle of the moved reflective material to obtain the optimal angle corresponding to the moved reflective material.

3. The method of claim 1, wherein the step of controlling the reflective material is performed by a computer. The step of horizontally moving the preset reflective material based on the width of the bright area at the initial height to obtain the initial optimal horizontal position of the preset reflective material at the initial height specifically includes: At the initial height, obtain the relative height between the preset reflective material and the center point of the photovoltaic array; When the width of the bright area is greater than the width of the preset reflective material, the relative distance between the center of the bright area and the pile foundation is determined based on the relative height, the width of the photovoltaic array surface, the tracking angle, the solar altitude angle, and the width of the bright area. Based on the relative distance, the preset reflective material is horizontally moved to the middle position of the bright area, and the center position of the reflective material after horizontal movement is taken as the initial optimal horizontal position at the initial height; When the width of the bright area is less than or equal to the width of the preset reflective material, the preset reflective material is moved horizontally to the bright area, and the center position of the horizontally moved reflective material is taken as the initial horizontal optimal position at the initial height, and the horizontally moved reflective material fills the bright area.

4. The method for controlling reflective materials as described in claim 1, characterized in that, Before the step of determining when the sum of the first front and back irradiance is greater than the initial sum of the front and back irradiance, the method further includes: When the sum of the first front and back irradiance is less than or equal to the initial sum of the front and back irradiance, the reflective material at the initial position is moved vertically within the preset moving range according to the second moving direction and the preset step size, to obtain the second height corresponding to the reflective material after the vertical movement, and then moved horizontally to the second optimal horizontal position under the second height. The position after the movement is taken as the second position, and the second sum of the front and back irradiance corresponding to the photovoltaic module under the second position is determined. When the sum of the second front and back irradiance is greater than the sum of the initial front and back irradiance, the second position is taken as the new initial position, and the step of vertically moving the reflective material at the initial position according to the second moving direction within the preset moving range according to the preset step size is returned until the new second instantaneous sum of the front and back irradiance is less than or equal to the new initial sum of the front and back irradiance. The current position corresponding to the new initial sum of the front and back irradiance is taken as the optimal position corresponding to the preset reflective material. When the sum of the second front and back irradiance is less than or equal to the sum of the initial front and back irradiance, the initial position is taken as the optimal position corresponding to the preset reflective material.

5. The method for controlling reflective materials as described in claim 1, characterized in that, The step of determining the width of the bright area corresponding to the bright area below the photovoltaic module based on the tracking angle specifically includes: The limiting angle is calculated based on the tracking angle, the solar altitude angle, the photovoltaic array spacing, and the photovoltaic array width. When the solar altitude angle is greater than the extreme angle, it is determined that there is a bright area below the photovoltaic module, and the relative height between the preset reflective material and the center point of the photovoltaic array is obtained; The width of the bright area corresponding to the bright area is determined based on the relative height, the spacing between the photovoltaic arrays, the solar altitude angle, the width of the photovoltaic array surface, and the tracking angle.

6. The method for controlling reflective materials as described in any one of claims 1 to 5, characterized in that, After the step of adjusting the position of the preset reflective material based on the width of the bright area to obtain the optimal position corresponding to the preset reflective material, the method further includes: Obtain the module current corresponding to each photovoltaic module in the same photovoltaic string, and segment the preset reflective material according to the module current; The orientation of the segmented reflective material is adjusted based on the component current to obtain the optimal target orientation corresponding to the segmented reflective material.

7. The method for controlling reflective materials as described in claim 6, characterized in that, The step of adjusting the orientation of the segmented reflective material based on the component current to obtain the optimal target orientation corresponding to the segmented reflective material specifically includes: Obtain the middle reflective material from the segmented reflective material; Starting from the intermediate reflective material, the orientation of the segmented reflective material is adjusted based on the component current to obtain the initial optimal orientation of the segmented reflective material. Obtain the initial power generation when the segmented reflective material is in the initial optimal orientation and the target power generation when the segmented reflective material is in the optimal position; The optimal target orientation corresponding to the segmented reflective material is determined based on the initial power generation and the target power generation.

8. The method for controlling reflective materials as described in claim 7, characterized in that, The step of determining the optimal target orientation corresponding to the segmented reflective material based on the initial power generation and the target power generation specifically includes: When the initial power generation is greater than the target power generation, the initial optimal orientation is taken as the target optimal orientation corresponding to the segmented reflective material; When the initial power generation is less than or equal to the target power generation, the optimal position is taken as the target optimal orientation corresponding to the segmented reflective material.

9. A reflective material control device, characterized in that, The reflective material control device includes: Angle determination module, used to determine the tracking angle of the photovoltaic tracking bracket based on the solar altitude angle and solar azimuth angle; A width determination module is used to determine the width of the bright area corresponding to the bright area below the photovoltaic module based on the tracking angle. An orientation adjustment module is used to adjust the orientation of a preset reflective material based on the width of the bright area to obtain the optimal orientation of the preset reflective material, wherein the optimal orientation includes the optimal position. The orientation adjustment module is further configured to: move a preset reflective material horizontally based on the width of the bright area at an initial height to obtain an initial optimal horizontal position of the preset reflective material at the initial height; after the horizontal movement is completed, take the current position corresponding to the horizontally moved reflective material as the initial position and obtain the initial sum of front and back irradiance corresponding to the photovoltaic module at the initial position; move the reflective material at the initial position vertically within a preset movement range according to a first movement direction with a preset step size to obtain a first height corresponding to the vertically moved reflective material, and then move it horizontally to the first optimal horizontal position at the first height, taking the moved position as the first position and determining the first sum of front and back irradiance corresponding to the photovoltaic module at the first position; when the first sum of front and back irradiance is greater than the initial sum of front and back irradiance, take the first position as the new initial position and return to the step of moving the reflective material at the initial position vertically within a preset movement range according to the first movement direction with a preset step size, until the new first instantaneous sum of front and back irradiance is less than or equal to the new initial sum of front and back irradiance. The current position corresponding to the sum of the new initial front and back irradiance is taken as the optimal position corresponding to the preset reflective material.

10. A reflective material control device, characterized in that, The device includes: a memory, a processor, and a reflective material control program stored in the memory and executable on the processor, the reflective material control program being configured to implement the steps of the reflective material control method as described in any one of claims 1 to 8.

11. A storage medium, characterized in that, The storage medium stores a reflective material control program, which, when executed by a processor, implements the steps of the reflective material control method as described in any one of claims 1 to 8.

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