Angle adjusting method of photovoltaic tracking support and photovoltaic equipment

Abstract

The invention discloses an angle adjusting method of a photovoltaic tracking support and photovoltaic equipment, and belongs to the technical field of photovoltaic equipment control, and the method comprises the steps: building a mapping angle adjuster, carrying out the angle adjustment control of the photovoltaic tracking support through employing the mapping angle adjuster, and carrying out the shooting of the ground projection of photovoltaic power generation equipment through employing a shadow camera. An optical angle regulator is established, the optical angle regulator is used for analyzing a shot shadow picture, and angle regulation and correction are performed on the photovoltaic tracking bracket according to an analysis result, so that the light incident surface of the photovoltaic power generation equipment always faces the sun, the optimal photovoltaic module tracking angle regulation effect is obtained, and the power generation efficiency is optimal.

Description

Technical Field

[0001] The present application belongs to the field of photovoltaic equipment control technology, and specifically relates to an angle adjustment method for a photovoltaic tracking bracket and a photovoltaic device. Background Art

[0002] To ensure the efficiency of photovoltaic power generation, existing photovoltaic power generation equipment often uses photovoltaic tracking brackets to support photovoltaic cells. The photovoltaic tracking brackets are driven by motors to achieve angle rotation, thereby ensuring that the light-incident surface of the photovoltaic cells is always facing the sun, thereby improving power generation efficiency.

[0003] At present, the angle of the photovoltaic tracking bracket can be adjusted to a preset angle according to a pre-stored mapping relationship at different times, thereby completing the adjustment of the angle of the photovoltaic module. The pre-stored mapping relationship includes a mapping relationship that corresponds one-to-one with the tracking angle of the photovoltaic module at each time of the day. However, although this method can adjust the angle of the photovoltaic module, the environmental conditions in which the photovoltaic module is located are different, which often leads to changes in the sunlight conditions or activity positions. Since it is not adjusted in real time according to the actual environmental conditions, but the preset angle of the photovoltaic module is adjusted according to the pre-stored mapping relationship, it is impossible to accurately adjust the angle of the photovoltaic module. Therefore, it is difficult to obtain the best adjustment effect of the photovoltaic module tracking angle, so that the power generation efficiency cannot reach the best. Summary of the Invention

[0004] To solve the above problems and technical defects, the present application adopts the following technical solution, a method for adjusting the angle of a photovoltaic tracking bracket, comprising the following steps:

[0005] Step 1: Establish a mapping angle adjuster and use the mapping angle adjuster to adjust the angle of the photovoltaic tracking bracket;

[0006] Step 2: Use a light and shadow camera to shoot the ground projection of the photovoltaic power generation equipment;

[0007] Step 3: Establish an optical angle adjuster, use the optical angle adjuster to analyze the captured light and shadow photos, and adjust the angle of the photovoltaic tracking bracket according to the analysis results.

[0008] Preferably, the process of establishing the mapping angle adjuster includes:

[0009] Obtain photovoltaic power generation equipment layout information, longitude and latitude, regional terrain and weather conditions;

[0010] The adjustment angle is preset based on the photovoltaic power generation equipment layout information, longitude and latitude, and regional terrain. When the preset period is reached, the photovoltaic tracking bracket is controlled to adjust the angle according to the preset adjustment angle;

[0011] Connect with the meteorological bureau in the area where the photovoltaic power generation equipment is located to obtain real-time weather information. If the weather on that day is not suitable for photovoltaic power generation, the angle of the photovoltaic tracking bracket will not be adjusted.

[0012] Preferably, the process of establishing the optical angle adjuster includes:

[0013] Determine the positional relationship between the light and shadow camera and the photovoltaic power generation equipment, and establish a three-dimensional model of the photovoltaic power generation equipment and the light and shadow camera;

[0014] Based on the three-dimensional model, the ground projection of the photovoltaic power generation equipment under different preset lighting angles is obtained, and PID control calculation is performed according to the ground projection under different preset lighting angles to obtain the corresponding photovoltaic tracking bracket adjustment angle;

[0015] An image corrector is established to correct the real-time captured image, and the corrected image is matched with the ground projection under different preset lighting angles to obtain the current lighting angle.

[0016] According to the current light angle, use the corresponding photovoltaic tracking bracket to adjust the angle of the photovoltaic tracking bracket to adjust the angle.

[0017] Furthermore, the establishment process of the image corrector is as follows:

[0018] A generator is built based on the self-attention mechanism. The generator is used to process the grayscale of ground projection images under different preset lighting angles to generate a training set.

[0019] Normalize the grayscale-processed training set, calculate and highlight the dark part, and generate an attention map focusing on the dark part;

[0020] The encoder extracts multi-level features through convolutional layers, and the decoder uses skip connections to transmit shallow details. Adaptive normalization is introduced to fuse illumination information, and the generated image is reconstructed through upsampling.

[0021] The discriminator uses the Sigmoid function to evaluate the generated image in blocks, evaluate the authenticity of the calculated image, and retrain those that do not meet the usage requirements until the image corrector meets the usage requirements.

[0022] Furthermore, the generator is an encoder-decoder network with residual connections, with a total of eight convolutions, and each convolution block consists of two 3*3 convolution layers, a BN layer, and a LeakReLU layer;

[0023] Each convolution block in the discriminator consists of a 4x4 convolution, a BN layer and a LeakReLU layer, and finally a Sigmoid function is used to judge the usability of the image.

[0024] Furthermore, the PID control calculation includes:

[0025] Perform proportional calculation on the adjustment torque of the photovoltaic tracking bracket to obtain the proportional control signal;

[0026] Integrate the adjustment error of the photovoltaic tracking bracket to obtain the integral control signal;

[0027] Perform differential calculation on the adjustment trend of the photovoltaic tracking bracket to obtain the differential control signal;

[0028] A constraint mechanism is established to limit the output of proportional control signals, integral control signals and differential control signals.

[0029] Furthermore, the constraint mechanism includes total variation regularization and angle equalization;

[0030] Total variation regularization optimizes angle adjustment through adversarial learning to keep the adjustment smooth;

[0031] Angle equalization enforces angle invariance by taking three versions of over-rotated, normal, and under-rotated angles as input content, sharing the same content label.

[0032] A photovoltaic device comprising:

[0033] Photovoltaic tracking bracket, used for angle adjustment control, to control the angle of photovoltaic power generation equipment toward the sun;

[0034] Light and shadow camera, used to photograph the ground projection of photovoltaic power generation equipment;

[0035] The mapping angle adjustment module is used to establish a mapping angle adjuster to adjust the angle of the photovoltaic tracking bracket according to the period and weather;

[0036] The optical angle adjuster is used to establish an optical angle adjuster to analyze the captured light and shadow photos, and adjust and correct the angle of the photovoltaic tracking bracket according to the analysis results.

[0037] A computer program product includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, the method for adjusting the angle of a photovoltaic tracking bracket as described above is implemented.

[0038] A computer-readable storage medium stores a computer program, which, when executed by a processor, implements the content of the above-mentioned method for adjusting the angle of a photovoltaic tracking bracket.

[0039] Compared with the prior art, the present invention has the following advantages:

[0040] This application uses a light and shadow camera to shoot the ground projection of the photovoltaic power generation equipment, establishes an optical angle adjuster, uses the optical angle adjuster to analyze the captured light and shadow photos, and adjusts and corrects the angle of the photovoltaic tracking bracket based on the analysis results. Through real-time adjustment of the ground projection of the current photovoltaic power generation equipment, the light incident surface of the photovoltaic power generation equipment is always facing the sun, thereby obtaining the best photovoltaic module tracking angle adjustment effect and achieving the best power generation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In the attached figure:

[0042] Figure 1 A schematic diagram of the method steps of an embodiment of the present application;

[0043] Figure 2 This is a schematic diagram of the device structure of an embodiment of the present application;

[0044] Figure 3 This is a schematic diagram of the computer program product structure of an embodiment of the present application. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0046] Example 1

[0047] like Figure 1 As shown, the angle adjustment method of the photovoltaic tracking bracket includes the following steps:

[0048] Establish a mapping angle regulator and use it to control the angle adjustment of the photovoltaic tracking bracket;

[0049] The process of establishing the mapping angle adjuster includes:

[0050] Obtain photovoltaic power generation equipment layout information, longitude and latitude, regional terrain and weather conditions;

[0051] The adjustment angle is preset based on the photovoltaic power generation equipment layout information, longitude and latitude, and regional terrain. When the preset period is reached, the photovoltaic tracking bracket is controlled to adjust the angle according to the preset adjustment angle;

[0052] Connect with the meteorological bureau in the area where the photovoltaic power generation equipment is located to obtain real-time weather information. If the weather on that day is not suitable for photovoltaic power generation, the angle of the photovoltaic tracking bracket will not be adjusted.

[0053] Use a light and shadow camera to shoot the ground projection of photovoltaic power generation equipment;

[0054] An optical angle adjuster is established and used to analyze the light and shadow photos taken, and the angle of the photovoltaic tracking bracket is adjusted and corrected according to the analysis results.

[0055] The process of establishing an optical angle adjuster includes:

[0056] Determine the positional relationship between the light and shadow camera and the photovoltaic power generation equipment, and establish a three-dimensional model of the photovoltaic power generation equipment and the light and shadow camera;

[0057] Based on the three-dimensional model, the ground projection of the photovoltaic power generation equipment under different preset lighting angles is obtained, and PID control calculation is performed according to the ground projection under different preset lighting angles to obtain the corresponding photovoltaic tracking bracket adjustment angle;

[0058] An image corrector is established to correct the real-time captured image, and the corrected image is matched with the ground projection under different preset lighting angles to obtain the current lighting angle.

[0059] According to the current light angle, use the corresponding photovoltaic tracking bracket to adjust the angle of the photovoltaic tracking bracket to adjust the angle.

[0060] The process of establishing the image corrector is as follows;

[0061] A generator is built based on the self-attention mechanism. The generator is used to process the grayscale of ground projection images under different preset lighting angles to generate a training set.

[0062] Normalize the grayscale-processed training set, calculate and highlight the dark part, and generate an attention map focusing on the dark part;

[0063] The encoder extracts multi-level features through convolutional layers, and the decoder uses skip connections to transmit shallow details. Adaptive normalization is introduced to fuse illumination information, and the generated image is reconstructed through upsampling.

[0064] The discriminator uses the Sigmoid function to evaluate the generated image in blocks, evaluate the authenticity of the calculated image, and retrain those that do not meet the usage requirements until the image corrector meets the usage requirements.

[0065] The generator is an encoder-decoder network with residual connections, with a total of eight convolutions. Each convolution block consists of two 3*3 convolutional layers, a BN layer, and a LeakReLU layer.

[0066] Each convolution block in the discriminator consists of a 4x4 convolution, a BN layer and a LeakReLU layer, and finally a Sigmoid function is used to judge the usability of the image.

[0067] PID control calculations include:

[0068] Perform proportional calculation on the adjustment torque of the photovoltaic tracking bracket to obtain the proportional control signal;

[0069] Integrate the adjustment error of the photovoltaic tracking bracket to obtain the integral control signal;

[0070] Perform differential calculation on the adjustment trend of the photovoltaic tracking bracket to obtain the differential control signal;

[0071] A constraint mechanism is established to limit the output of proportional control signals, integral control signals and differential control signals.

[0072] Constraint mechanisms include total variation regularization and angle equalization;

[0073] Total variation regularization optimizes angle adjustment through adversarial learning to keep the adjustment smooth;

[0074] Angle equalization enforces angle invariance by taking three versions of over-rotated, normal, and under-rotated angles as input content, sharing the same content label.

[0075] Example 2

[0076] like Figure 2 As shown, a photovoltaic device includes:

[0077] Photovoltaic tracking bracket, used for angle adjustment control, to control the angle of photovoltaic power generation equipment toward the sun;

[0078] Light and shadow camera, used to photograph the ground projection of photovoltaic power generation equipment;

[0079] The mapping angle adjustment module is used to establish a mapping angle adjuster to adjust the angle of the photovoltaic tracking bracket according to the period and weather;

[0080] The optical angle adjuster is used to establish an optical angle adjuster to analyze the captured light and shadow photos, and adjust and correct the angle of the photovoltaic tracking bracket according to the analysis results.

[0081] Example 3

[0082] like Figure 3As shown, from a hardware perspective, the present application provides an embodiment of a computer program product that contains all or part of the content of a method for adjusting the angle of a photovoltaic tracking bracket. The computer program product includes a service processor and a distributed memory. The service processor is connected to the memory. The distributed memory stores a service self-management program configured to store machine-readable instructions. The service processor executes the service self-management program. When the instructions are executed by the processor, the angle adjustment method of the photovoltaic tracking bracket as described above is implemented.

[0083] From a hardware perspective, in order to effectively improve the flexibility, versatility, and efficiency of data acquisition, this application provides an embodiment of a computer program product that implements all or part of the method for adjusting the angle of a photovoltaic tracking bracket. The computer program product specifically includes the following:

[0084] A processor, a memory, a communications interface, and a bus; wherein the processor, the memory, and the communications interface communicate with each other via the bus; the communications interface is used to implement information transmission between the core business system of the photovoltaic tracking bracket angle adjustment method, user terminals, and related databases and other related devices; the logic controller can be a desktop computer, a tablet computer, a mobile terminal, etc., but this embodiment is not limited thereto.

[0085] In this embodiment, the logic controller can be implemented with reference to the embodiment of the angle adjustment method of the photovoltaic tracking bracket in the embodiment, the content of which is incorporated herein and the repeated parts are not repeated here.

[0086] It is understandable that the user terminal may include a smart phone, a tablet electronic device, a network set-top box, a portable computer, a desktop computer, a personal digital assistant (PDA), a vehicle-mounted device, a smart wearable device, etc., wherein the smart wearable device may include smart glasses, smart watches, smart bracelets, etc.

[0087] In practical applications, portions of the photovoltaic tracking bracket angle adjustment method may be executed on the computer program product described above, or all operations may be performed on the client device. The specific selection may depend on the processing capabilities of the client device and the limitations of the user's usage scenario, and this application does not impose any restrictions on this. If all operations are performed on the client device, the client device may also include a processor.

[0088] The above-mentioned client device may have a communication module (i.e., a communication unit), which can communicate with a remote server to realize data transmission with the server. The server may include a server on the task scheduling center side, and other implementation scenarios may also include a server on an intermediate platform, such as a server on a third-party server platform that has a communication link with the task scheduling center server. The server may include a single computer device, or a server cluster consisting of multiple servers, or a server structure of a distributed device.

[0089] Example 4

[0090] The embodiments of the present application also provide a computer-readable storage medium that can implement the angle adjustment method of the photovoltaic tracking bracket in the above-mentioned embodiment, where the execution subject is a server or a client. The computer-readable storage medium stores a computer program, which, when executed by a processor, implements all the contents of the angle adjustment method of the photovoltaic tracking bracket in the above-mentioned embodiment, where the execution subject is a server or a client.

[0091] The embodiments of the present application may be provided as methods, apparatuses, or computer program products. Thus, the present application may take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0092] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (apparatus), and computer program products according to the embodiments of the present application. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of the processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0093] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0094] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing the instructions executed on the computer or other programmable device for implementing the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0095] The above-described embodiments merely represent preferred implementations of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present application. It should be noted that a person skilled in the art would be able to make numerous variations, improvements, and substitutions without departing from the spirit of the present application, all of which fall within the scope of protection of the present application.

Claims

1. The angle adjustment method of the photovoltaic tracking bracket is characterized in that: The following steps are involved: Step 1: Establish a mapping angle adjuster and use the mapping angle adjuster to adjust the angle of the photovoltaic tracking bracket; Step 2: Use a light and shadow camera to shoot the ground projection of the photovoltaic power generation equipment; Step 3: Establish an optical angle adjuster, use the optical angle adjuster to analyze the captured light and shadow photos, and adjust the angle of the photovoltaic tracking bracket according to the analysis results.

2. The angle adjustment method of the photovoltaic tracking bracket according to claim 1, characterized in that: The establishment process of the mapping angle adjuster includes: Obtain photovoltaic power generation equipment layout information, longitude and latitude, regional terrain and weather conditions; The adjustment angle is preset based on the photovoltaic power generation equipment layout information, longitude and latitude, and regional terrain. When the preset period is reached, the photovoltaic tracking bracket is controlled to adjust the angle according to the preset adjustment angle; Connect with the meteorological bureau in the area where the photovoltaic power generation equipment is located to obtain real-time weather information. If the weather on that day is not suitable for photovoltaic power generation, the angle of the photovoltaic tracking bracket will not be adjusted.

3. The angle adjustment method of the photovoltaic tracking bracket according to claim 1, characterized in that: The establishment process of the optical angle adjuster includes: Determine the positional relationship between the light and shadow camera and the photovoltaic power generation equipment, and establish a three-dimensional model of the photovoltaic power generation equipment and the light and shadow camera; Based on the three-dimensional model, the ground projection of the photovoltaic power generation equipment under different preset lighting angles is obtained, and PID control calculation is performed according to the ground projection under different preset lighting angles to obtain the corresponding photovoltaic tracking bracket adjustment angle; An image corrector is established to correct the real-time captured image, and the corrected image is matched with the ground projection under different preset lighting angles to obtain the current lighting angle. According to the current light angle, use the corresponding photovoltaic tracking bracket to adjust the angle of the photovoltaic tracking bracket to adjust the angle.

4. The angle adjustment method of the photovoltaic tracking bracket according to claim 3, characterized in that: The establishment process of the image corrector is as follows: A generator is built based on the self-attention mechanism. The generator is used to process the grayscale of ground projection images under different preset lighting angles to generate a training set. Normalize the grayscale-processed training set, calculate and highlight the dark part, and generate an attention map focusing on the dark part; The encoder extracts multi-level features through convolutional layers, and the decoder uses skip connections to transmit shallow details. Adaptive normalization is introduced to fuse illumination information, and the generated image is reconstructed through upsampling. The discriminator uses the Sigmoid function to evaluate the generated image in blocks, evaluate the authenticity of the calculated image, and retrain those that do not meet the usage requirements until the image corrector meets the usage requirements.

5. The angle adjustment method of the photovoltaic tracking bracket according to claim 4, characterized in that: The generator is an encoder-decoder network with residual connections, with a total of eight convolutions. Each convolution block consists of two 3*3 convolutional layers, a BN layer, and a LeakReLU layer. Each convolution block in the discriminator consists of a 4x4 convolution, a BN layer and a LeakReLU layer, and finally a Sigmoid function is used to judge the usability of the image.

6. The angle adjustment method of the photovoltaic tracking bracket according to claim 3, characterized in that: The PID control calculation includes: Perform proportional calculation on the adjustment torque of the photovoltaic tracking bracket to obtain the proportional control signal; Integrate the adjustment error of the photovoltaic tracking bracket to obtain the integral control signal; Perform differential calculation on the adjustment trend of the photovoltaic tracking bracket to obtain the differential control signal; A constraint mechanism is established to limit the output of proportional control signals, integral control signals and differential control signals.

7. The angle adjustment method of the photovoltaic tracking bracket according to claim 6, characterized in that: The constraint mechanisms include total variation regularization and angle equalization; Total variation regularization optimizes angle adjustment through adversarial learning to keep the adjustment smooth; Angle equalization enforces angle invariance by taking three versions of over-rotated, normal, and under-rotated angles as input content, sharing the same content label.

8. A photovoltaic device, characterized in that: include: Photovoltaic tracking bracket, used for angle adjustment control, to control the angle of photovoltaic power generation equipment toward the sun; Light and shadow camera, used to photograph the ground projection of photovoltaic power generation equipment; The mapping angle adjustment module is used to establish a mapping angle adjuster to adjust the angle of the photovoltaic tracking bracket according to the period and weather; The optical angle adjuster is used to establish an optical angle adjuster to analyze the captured light and shadow photos, and adjust and correct the angle of the photovoltaic tracking bracket according to the analysis results.

9. A computer program product comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the program, the content of the angle adjustment method of the photovoltaic tracking bracket according to claim 1 is implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the content of the angle adjustment method of the photovoltaic tracking bracket described in claim 1 is implemented.

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