Integrated photovoltaic power generation system

Abstract

This invention discloses an integrated photovoltaic power generation system, specifically relating to the field of photovoltaic power generation technology. The system includes a photovoltaic panel, a cleaning device, an ultrasonic sensor, a light sensor, a temperature sensor, and a controller. The cleaning device, equipped with a water spray nozzle, a dust suction port, and a brush, works in conjunction with these components to effectively remove dirt from the photovoltaic panel surface, thereby maximizing the panel's power generation efficiency. Furthermore, the invention establishes an adjustment coefficient by collecting data on the photovoltaic panel's wear coefficient, surface transmittance, and temperature deviation index. This coefficient is then used to calculate a new, corrected activation threshold. The adjustment module adjusts the cleaning device's activation state based on this corrected threshold, achieving the optimal activation threshold and ensuring the cleaning device operates under the most suitable conditions.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic power generation technology, and more specifically, to an integrated photovoltaic power generation system. Background Technology

[0002] Photovoltaic panels are part of a solar photovoltaic (PV) power generation system. Also commonly called solar panels or solar photovoltaic cells, PV panels are plate-shaped devices equipped with solar cells that convert sunlight into electrical energy. These solar panels typically consist of multiple photovoltaic cells that use photons (particles of sunlight) to generate electricity, thus achieving solar power generation. PV panels are widely used in solar power generation systems, such as solar power plants, solar roof panels, and solar cell panels, to provide clean, renewable electricity.

[0003] Existing photovoltaic (PV) panels are typically equipped with cleaning devices. When the power generation efficiency of a PV panel is compromised, the cleaning device first cleans the surface of the panel to remove dirt and restore its efficiency. However, the cleaning device cannot adjust its operation based on the condition of the PV panel surface, resulting in the following drawbacks:

[0004] If dirt on the surface of the photovoltaic panel causes a decrease in its power generation efficiency, simply start cleaning with the cleaning device. However, if shadows or damage on the surface of the photovoltaic panel cause a decrease in its power generation efficiency, continuing to clean the panel with the cleaning device will not only cause the cleaning device to run continuously, but may also worsen the damage to the already damaged photovoltaic panel, resulting in a greater impact.

[0005] Therefore, this invention proposes an integrated photovoltaic power generation system that can intelligently activate the cleaning device after detecting the power generation status of the solar photovoltaic panels.

[0006] To address the aforementioned shortcomings, a technical solution is provided. Summary of the Invention

[0007] In order to overcome the above-mentioned defects of the prior art, embodiments of the present invention provide an integrated photovoltaic power generation system to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution:

[0009] An integrated photovoltaic power generation system includes a photovoltaic panel body, characterized in that: a cleaning device is provided on the top of the photovoltaic panel body, and an ultrasonic sensor, a light sensor, and a temperature sensor are provided around the cleaning device; a controller is provided at the bottom of the photovoltaic panel body.

[0010] Ultrasonic sensor: used to collect the crack length and crack depth on the surface of photovoltaic panels;

[0011] Light sensor: used to collect the intensity of sunlight shining on the surface of a photovoltaic panel;

[0012] Temperature sensor: Used to collect the actual temperature of the photovoltaic panel during operation;

[0013] Controller: The input terminals of the controller are electrically connected to the output terminals of the ultrasonic sensor, light sensor, and temperature sensor, respectively, and are used to receive the output signals of the ultrasonic sensor, light sensor, and temperature sensor and generate control commands.

[0014] Cleaning device: The input terminal of the cleaning device is electrically connected to the output terminal of the controller, and performs corresponding actions according to the control command;

[0015] After comprehensively analyzing the output signals from the ultrasonic sensor, light sensor, and temperature sensor, the controller intelligently adjusts the operating status of the cleaning device.

[0016] In a preferred embodiment, the cleaning device includes a water spray motor, a vacuum motor on one side of the water spray motor, a water pump on the other side of the vacuum motor, a suction port on one side of the water pump, a water spray nozzle on one side of the suction port, a brush on one side of the water spray nozzle, a gear A fixedly connected to one end of the vacuum motor, the gear A meshing with a rack A, a gear B fixedly connected to one side of the rack A, the gear B meshing with a rack B, and the rack B fixedly connected to the photovoltaic panel body.

[0017] In a preferred embodiment, the controller includes a data acquisition module, a processing module, a correction module, and an adjustment module;

[0018] The data acquisition module collects the wear coefficient of the photovoltaic panel, the light transmittance of the photovoltaic panel surface, and the temperature deviation index, and uploads the collected parameters to the processing module.

[0019] The processing module builds a data processing model based on the results uploaded by the acquisition module, generates adjustment coefficients, and transmits the adjustment coefficients to the comparison module.

[0020] Correction Module: Calculates the correction threshold by combining the adjustment coefficient uploaded by the processing module with the initial cleaning device activation threshold, obtains the corrected activation threshold, and uploads the result to the adjustment module.

[0021] The adjustment module adjusts the threshold for the cleaning device to be activated based on the results uploaded by the correction module.

[0022] In a preferred embodiment, the logic for obtaining the wear coefficient of the photovoltaic panel is as follows:

[0023] The expression for the wear coefficient of a photovoltaic panel is:

[0024]

[0025] In the formula, Let n be the wear coefficient of the photovoltaic panel, and n be the number of cracks on the surface of the photovoltaic panel. The length of the crack, The depth of the crack.

[0026] In a preferred embodiment, the logic for obtaining the light transmittance of the photovoltaic panel surface is as follows:

[0027] S1: Obtain the irradiance of the photovoltaic panel surface exposed to sunlight within time T, and label it as follows: ;

[0028] S2: Obtain the intensity of sunlight passing through the cover within time T and mark it as... ;

[0029] S3: Calculate the light transmittance of the photovoltaic panel surface;

[0030] The formula for calculating light transmittance is: .

[0031] In a preferred embodiment, the logic for obtaining the temperature deviation index is as follows:

[0032] S1: Obtain the preset temperature range of the photovoltaic panel within time T, and mark this range as... ,and ;

[0033] S2. Take the actual temperature of the photovoltaic panel during time T, and mark the actual temperature of the photovoltaic panel during operation as... s represents the number of the actual temperature of the photovoltaic panel during operation, s = 1, 2, 3, 4, ..., N, where N is a positive integer;

[0034] S3, will be The actual operating temperature of the photovoltaic panels outside the range is marked as follows: j represents the actual operating temperature of the photovoltaic panel. The numbers outside the range, j = 1, 2, 3, 4, ..., n, where n is a positive integer;

[0035] S4. Calculate the temperature deviation index. The expression for the calculation is: In the formula, This is the temperature deviation index.

[0036] In a preferred embodiment, the expression for the adjustment coefficient is:

[0037]

[0038] In the formula, For adjustment coefficients, , , These are the photovoltaic panel wear coefficient, the light transmittance of the photovoltaic panel surface, and the temperature deviation index, respectively. , These are preset proportional coefficients for the photovoltaic panel wear coefficient, the light transmittance of the photovoltaic panel surface, and the temperature deviation index, respectively. , All are greater than 0.

[0039] In a preferred embodiment, calculating the corrected activation threshold includes the following steps:

[0040] Let the initial opening threshold be Adjust the activation threshold In the formula, This is the initial activation threshold. To correct the activation threshold, This is the adjustment coefficient.

[0041] The technical effects and advantages of this invention are as follows:

[0042] 1. This invention includes a cleaning device and a controller. The cleaning device is equipped with a water spray nozzle, a dust suction nozzle, and a brush. Through the cooperation of the water spray nozzle, the dust suction nozzle, and the brush, the cleaning device can clean the dirt on the surface of the photovoltaic panel, so that the photovoltaic panel can generate electricity at a higher efficiency and generate electricity better.

[0043] 2. This invention establishes an adjustment coefficient by collecting the wear coefficient of the photovoltaic panel, the light transmittance of the photovoltaic panel surface, and the temperature deviation index. Then, the adjustment coefficient is calculated with the initial opening threshold to obtain a new corrected opening threshold. The adjustment module adjusts the opening state of the cleaning device according to the obtained corrected opening threshold to achieve the optimal opening threshold, so that the cleaning device opens under the most reasonable conditions. Attached Figure Description

[0044] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings;

[0045] Figure 1 This is a first structural schematic diagram of the integrated photovoltaic power generation system proposed in this invention;

[0046] Figure 2 This is a schematic diagram of the second structure of the integrated photovoltaic power generation system proposed in this invention;

[0047] Figure 3 for Figure 2 Enlarged schematic diagram of the cleaning device structure;

[0048] Figure 4 A schematic diagram showing the structure of dirt appearing on the surface of a photovoltaic panel;

[0049] Figure 5 This is a schematic diagram of a structure where cracks appear on the surface of a photovoltaic panel.

[0050] Figure 6 A schematic diagram showing the structure on the surface of a photovoltaic panel where shadows appear;

[0051] Figure 7 This is a schematic diagram of the cleaning device.

[0052] Figure 8 This is a system module diagram of the integrated photovoltaic power generation system of the present invention.

[0053] In the diagram: 1. Photovoltaic panel body; 2. Cleaning device; 21. Water spray motor; 22. Vacuum motor; 23. Water pump; 24. Vacuum inlet; 25. Water spray nozzle; 26. Brush; 27. Gear A; 3. Ultrasonic sensor; 4. Light sensor; 5. Temperature sensor; 6. Controller; 7. Rack A; 8. Gear B; 9. Rack B; A: Dirt on the surface of the photovoltaic panel; B: Cracks on the surface of the photovoltaic panel; C: Shadows on the surface of the photovoltaic panel. Detailed Implementation

[0054] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0055] Example 1

[0056] like Figure 1-7 As shown, an integrated photovoltaic power generation system includes a photovoltaic panel body 1, characterized in that: a cleaning device 2 is provided on the top of the photovoltaic panel body 1, an ultrasonic sensor 3, a light sensor 4, and a temperature sensor 5 are provided around the cleaning device 2, and a controller 6 is provided on the bottom of the photovoltaic panel body 1.

[0057] The cleaning device 2 includes a water spray motor 21, a vacuum motor 22 on one side of the water spray motor 21, a water pump 23 on the other side of the vacuum motor 22, a suction port 24 on one side of the water pump 23, a water spray nozzle 25 on one side of the suction port 24, a brush 26 on one side of the water spray nozzle 25, a gear A27 fixedly connected to one end of the vacuum motor 22, the gear A27 meshing with a rack A7, a gear B8 fixedly connected to one side of the rack A7, the gear B8 meshing with a rack B9, and the rack B9 fixedly connected to the photovoltaic panel body 1.

[0058] The operating principle of the entire device is as follows:

[0059] When cleaning is required, firstly, gear B8 and rack B9 engage to drive the entire cleaning device 2 up and down on the photovoltaic panel surface. When it reaches a similar position, gear A27 and rack A7 engage to drive the entire cleaning device 2 left and right on the photovoltaic panel surface. When it reaches the dirt spot, the cleaning device 2 stops moving. Then, water spray motor 21 and dust suction motor 22 are turned on. At this time, the dust suction port 24 begins to suck away the dust on the dirt surface, water spray port 25 sprays out water, and the brush 26 starts to remove the dirt. The entire cleaning device 2 cleans the photovoltaic panel surface.

[0060] By activating cleaning device 2, the dirt on the surface of the photovoltaic panel is cleaned, so that the power generation efficiency of the photovoltaic panel surface is at a high level.

[0061] Example 2

[0062] As described in Example 1 above, when the cleaning device 2 senses a decrease in the power generation efficiency of the photovoltaic panel surface, it assumes that there may be dirt on the photovoltaic panel surface. However, the decrease in power generation efficiency is not necessarily due to dirt on the photovoltaic panel surface. Shading, damage, and other phenomena on the photovoltaic panel surface can also cause a decrease in power generation efficiency. If the cleaning device 2 continues to clean the photovoltaic panel in this situation, it may cause the following effects:

[0063] Energy waste: Cleaning devices require electricity to operate. If cleaning device 2 continues to run but fails to address the shading or damage issues, this will result in wasted electricity, which will not only increase energy costs but may also negatively impact the sustainability of renewable energy systems.

[0064] Mechanical wear: Cleaning device 2 typically requires mechanical operations on the photovoltaic panel surface to remove dirt. If there is no dirt to clean, these mechanical operations may cause unnecessary mechanical wear, which will increase the maintenance costs of cleaning device 2, including the cost of repair and replacement parts.

[0065] Potentially worsens damage: If the surface of the photovoltaic panel is damaged, continued use of cleaning device 2 may worsen the damage. The mechanical operation of cleaning device 2 may cause further damage to the damaged area, which may require more expensive repairs or even replacement of the damaged photovoltaic panel.

[0066] Unresolved issue: Cleaning device 2 could not resolve the shading or photovoltaic panel damage issues. Shading issues require repositioning or adjusting the photovoltaic panels, while damage issues may require professional inspection and repair.

[0067] Therefore, continuously turning on the cleaning device 2 is usually impractical for solving problems of shading or damage to photovoltaic panels, and may bring additional costs and risks.

[0068] Therefore, it is necessary to adjust the opening threshold of cleaning device 2 to prevent it from opening under unnecessary conditions. The specific operation is as follows:

[0069] An integrated photovoltaic power generation system includes a data acquisition module, a processing module, a correction module, and a regulation module.

[0070] The data acquisition module collects the wear coefficient of the photovoltaic panel, the light transmittance of the photovoltaic panel surface, and the temperature deviation index, and uploads the collected parameters to the processing module.

[0071] The processing module builds a data processing model based on the results uploaded by the acquisition module, generates adjustment coefficients, and transmits the adjustment coefficients to the comparison module.

[0072] Correction Module: Calculates the correction threshold by combining the adjustment coefficient uploaded by the processing module with the initial opening threshold of cleaning device 2, obtains the corrected opening threshold, and uploads the result to the adjustment module.

[0073] The adjustment module adjusts the threshold for opening the cleaning device 2 based on the results uploaded by the correction module.

[0074] The specific steps are as follows:

[0075] The wear coefficient, light transmittance, and temperature deviation index of the photovoltaic panel are processed, and a data processing model is established to generate the adjustment coefficient, the expression of which is:

[0076]

[0077] In the formula, For adjustment coefficients, , , These are the photovoltaic panel wear coefficient, the light transmittance of the photovoltaic panel surface, and the temperature deviation index, respectively. , These are preset proportional coefficients for the photovoltaic panel wear coefficient, the light transmittance of the photovoltaic panel surface, and the temperature deviation index, respectively. , All are greater than 0.

[0078] Photovoltaic panel wear coefficient: This refers to the degree of wear on the surface of the photovoltaic panel. The greater the wear on the surface of the photovoltaic panel, the lower the power generation efficiency of the photovoltaic panel. Specifically, it includes the following effects:

[0079] Decreased light absorption efficiency: Abrasion can cause the surface of photovoltaic panels to become rough or develop tiny scratches, which scatter sunlight. This results in less light being absorbed by the photovoltaic cells, thus reducing light absorption efficiency. This means that the same amount of solar energy will produce less electricity.

[0080] Reduced current output: Wear and tear can affect the flow of electrons, especially in damaged areas. This can lead to a decrease in the battery's current output, thus reducing its power generation.

[0081] Localized efficiency decline: Wear and tear usually does not affect the entire photovoltaic panel, but rather a localized area. Therefore, the reduction in power generation efficiency is localized and depends on the size and location of the damaged area.

[0082] Temperature rise: Damaged areas may heat up due to impaired current flow. This can lead to higher temperatures in that area, further reducing battery efficiency.

[0083] Systemic issues: Long-term wear and tear can lead to aging of the photovoltaic panel surface, increasing the system's maintenance needs and potential failure risks.

[0084] The number n of cracks on the surface of the photovoltaic panel within time T, and the length of the cracks. With the depth of the crack ,

[0085] The expression for the wear coefficient of a photovoltaic panel is:

[0086]

[0087] In the formula, Let n be the wear coefficient of the photovoltaic panel, and n be the number of cracks on the surface of the photovoltaic panel. The length of the crack, The depth of the crack;

[0088] It should be noted that the number of cracks on the surface of the photovoltaic panel can be obtained directly by observation, and the length of the cracks... With the depth of the crack All of these can be obtained by setting up an ultrasonic sensor.

[0089] The logic of ultrasonic sensors to obtain crack length and crack depth is as follows: The sensor emits ultrasonic pulses, usually a series of high-frequency sound waves. These sound waves pass through the material and reach the crack area. Once the ultrasonic waves encounter cracks or defects in the material, some of the energy is reflected back to the sensor. The sensor receives these echo signals and records their intensity, time delay, and other information. By analyzing the amplitude changes of the echo signals, information about internal defects in the material can be obtained, including the length and depth of cracks on the surface of the photovoltaic panel.

[0090] When the wear coefficient of photovoltaic panel The larger the value, the greater the wear on the photovoltaic panel surface, indicating a lower power generation efficiency. The low efficiency is due to surface wear, and in this case, cleaning device 2 does not need to be activated. The adjustment coefficient... The greater the wear coefficient, the better; The smaller the value, meaning the less wear on the photovoltaic panel surface (even zero), the lower the power generation efficiency of the photovoltaic panel. In this case, the low efficiency is not due to wear on the panel surface, increasing the likelihood that cleaning device 2 will need to be activated. Therefore, the adjustment coefficient... The smaller,

[0091] The light transmittance of a photovoltaic (PV) panel refers to the ability of light to penetrate the surface of the PV panel and reach the solar cells. When the power generation efficiency of a PV panel decreases, shadows, dirt, or other coverings on the surface can reduce the ability of light to penetrate and reach the solar cells, thus lowering the power generation efficiency. However, generally, when the covering on the PV panel surface is simply dirt, the light transmittance is relatively high, and the adjustment coefficient is less affected. The smaller the light transmittance, the less necessary it is to activate cleaning device 2. When the surface of the photovoltaic panel is shaded or otherwise obscured, the light transmittance is even lower, sometimes reaching zero. In this case, activating cleaning device 2 is less necessary. (Adjustment coefficient) The larger it is.

[0092] The logic for obtaining the light transmittance of the photovoltaic panel surface is as follows:

[0093] S1: Obtain the irradiance of the photovoltaic panel surface without any covering during time T (the photovoltaic panel surface refers to the surface of a normally used photovoltaic panel), and mark it as... ;

[0094] S2: Obtain the intensity of sunlight passing through the cover within time T and mark it as... ;

[0095] S3: Calculate the light transmittance of the photovoltaic panel surface;

[0096] The formula for calculating light transmittance is: ;

[0097] It should be noted that the light intensity of sunlight hitting the surface of an uncovered photovoltaic panel is... The intensity of sunlight after passing through a covering can be obtained by a light intensity sensor. The principle of the light intensity sensor is that when light shines on the light intensity photosensitive element, the photosensitive element absorbs light energy, and electrons will jump from the valence band to the conduction band, thereby changing the resistance or current of the element. This change in electrical signal is proportional to the light intensity, so the light intensity can be calculated.

[0098] When the light transmittance of the photovoltaic panel surface The higher the transmittance, the lower the power generation efficiency of the photovoltaic panel. This low efficiency is caused by dirt on the panel surface, requiring the cleaning device 2 to be activated. At this point, the adjustment coefficient... The smaller the transmittance, the lower the transmittance of the photovoltaic panel surface. The smaller the value, the lower the power generation efficiency of the photovoltaic panel. In this case, the low efficiency is not due to dirt on the panel surface, and the likelihood of needing to activate cleaning device 2 is lower. Therefore, the adjustment coefficient is less important. The larger it is.

[0099] Temperature Deviation Index: This refers to the difference in temperature between a photovoltaic (PV) panel and its normal operating temperature when the panel's power generation efficiency decreases. The temperature difference can be caused by various factors, such as:

[0100] Shading typically results in lower temperatures in shaded areas because solar cells no longer receive sunlight in the shade and therefore do not generate the same heat as areas exposed to direct sunlight. Temperature monitoring devices are used to measure the temperature of different areas on the surface of the photovoltaic panel.

[0101] Temperature of damaged areas: Damaged areas on the surface of photovoltaic panels may heat up due to impaired electron flow. If there are obvious breaks or damage, these areas may show a higher temperature than the surrounding areas, which may be due to impaired current flow in the damaged cells.

[0102] Dirt can absorb sunlight and generate heat on the surface of photovoltaic panels, causing a slight increase in temperature in the contaminated area. This is because the dirt surface absorbs light and converts it into heat energy, thus raising the surface temperature. However, the temperature change caused by dirt is usually relatively small because the primary function of photovoltaic panels is to convert solar energy into electrical energy, not to generate large amounts of heat. Therefore, even a slight increase in surface temperature has a minimal impact on power generation efficiency.

[0103] Therefore, the logic for obtaining the temperature deviation index is as follows:

[0104] S1: Obtain the preset temperature range of the photovoltaic panel within time T, and mark this range as... ,and ;

[0105] S2. Take the actual temperature of the photovoltaic panel during time T, and mark the actual temperature of the photovoltaic panel during operation as... s represents the number of the actual temperature of the photovoltaic panel during operation, s = 1, 2, 3, 4, ..., N, where N is a positive integer;

[0106] It should be noted that the interval between obtaining the actual operating temperature of the photovoltaic panel is a specific value, which can be obtained once every 1 second or once every 0.5 seconds, and the specific acquisition frequency is not limited; the preset temperature range of the photovoltaic panel within time T can be obtained from known literature, and the actual operating temperature of the photovoltaic panel can be obtained through a temperature sensor.

[0107] S3, will be The actual operating temperature of the photovoltaic panels outside the range is marked as follows: j represents the actual operating temperature of the photovoltaic panel. The numbers outside the range, j = 1, 2, 3, 4, ..., n, where n is a positive integer;

[0108] S4. Calculate the temperature deviation index. The expression for the calculation is: In the formula, This is the temperature deviation index.

[0109] As shown in the calculated expression, the larger the temperature deviation index, the lower the power generation efficiency of the photovoltaic panel. In this case, the low power generation efficiency is not caused by dirt on the photovoltaic panel surface, but rather by surface damage or shadows. Cleaning device 2 does not need to be activated in this situation. The adjustment coefficient... The larger the temperature deviation index, the lower the power generation efficiency of the photovoltaic panel. This low efficiency is likely due to dirt on the panel's surface, requiring the cleaning device 2 to be activated. The adjustment coefficient at this point... The smaller it is;

[0110] Substitute the collected data into the expression:

[0111] The calculated adjustment coefficient is processed with the initial threshold for opening the cleaning device 2 to adjust the opening threshold of the cleaning device 2.

[0112] Let the initial activation threshold of cleaning device 2 be denoted as... Therefore, the activation threshold should be adjusted to... In the formula, This is the initial activation threshold. To correct the activation threshold, This is the adjustment coefficient.

[0113] This invention establishes an adjustment coefficient by collecting data on the wear coefficient of the photovoltaic panel, the light transmittance of the photovoltaic panel surface, and the temperature deviation index. Then, the adjustment coefficient is calculated with the initial opening threshold to obtain a new corrected opening threshold. The adjustment module adjusts the opening state of the cleaning device 2 according to the obtained corrected opening threshold to achieve the optimal opening threshold, so that the cleaning device 2 opens under the most reasonable conditions.

[0114] The above formulas are all dimensionless calculations. The formulas are derived from software simulations based on a large amount of collected data to obtain the most recent real-world results. The preset parameters in the formulas are set by those skilled in the art according to the actual situation.

[0115] It should be understood that in the various embodiments of this application, the order of the above-mentioned processes does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0116] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0117] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0118] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0119] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0120] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An integrated photovoltaic power generation system, comprising a photovoltaic panel body (1), characterized in that: A cleaning device (2) is provided on the top of the photovoltaic panel body (1), and an ultrasonic sensor (3), a light sensor (4), and a temperature sensor (5) are provided around the cleaning device (2). A controller (6) is provided at the bottom of the photovoltaic panel body (1). Ultrasonic sensor (3): used to collect the crack length and crack depth on the surface of the photovoltaic panel; Light sensor (4): used to collect the light intensity of sunlight shining on the surface of the photovoltaic panel; Temperature sensor (5): used to collect the actual temperature of the photovoltaic panel during operation; Controller (6): The input terminal of the controller (6) is electrically connected to the output terminals of the ultrasonic sensor (3), the light sensor (4), and the temperature sensor (5) respectively, and is used to receive the output signals of the ultrasonic sensor (3), the light sensor (4), and the temperature sensor (5) to generate control commands; Cleaning device (2): The input end of the cleaning device (2) is electrically connected to the output end of the controller (6) and performs corresponding actions according to the control command; After comprehensively analyzing the output signals of the ultrasonic sensor (3), light sensor (4), and temperature sensor (5), the controller (6) intelligently adjusts the operating status of the cleaning device (2); The controller (6) includes a data acquisition module, a processing module, a correction module, and an adjustment module; The data acquisition module collects the wear coefficient of the photovoltaic panel, the light transmittance of the photovoltaic panel surface, and the temperature deviation index, and uploads the collected parameters to the processing module. The logic for obtaining the wear coefficient of the photovoltaic panel is as follows: The expression for the wear coefficient of a photovoltaic panel is: ； In the formula, Let n be the wear coefficient of the photovoltaic panel, and n be the number of cracks on the surface of the photovoltaic panel. The length of the crack, The depth of the crack; The logic for obtaining the light transmittance of the photovoltaic panel surface is as follows: S1: Obtain the irradiance of the photovoltaic panel surface exposed to sunlight within time T, and label it as follows: ; S2: Obtain the intensity of sunlight passing through the cover within time T and mark it as... ; S3: Calculate the light transmittance of the photovoltaic panel surface; The formula for calculating light transmittance is: ; The logic for obtaining the temperature deviation index is as follows: S1: Obtain the preset temperature range of the photovoltaic panel within time T, and mark this range as... ,and ; S2. Take the actual temperature of the photovoltaic panel during time T, and mark the actual temperature of the photovoltaic panel during operation as... s represents the number of the actual temperature of the photovoltaic panel during operation, s = 1, 2, 3, 4, ..., N, where N is a positive integer; S3, will be The actual operating temperature of the photovoltaic panels outside the range is marked as follows: j represents the actual operating temperature of the photovoltaic panel. The numbers outside the range, j = 1, 2, 3, 4, ..., n, where n is a positive integer; S4. Calculate the temperature deviation index. The expression for the calculation is: In the formula, Temperature deviation index; The processing module builds a data processing model based on the results uploaded by the acquisition module, generates adjustment coefficients, and transmits the adjustment coefficients to the comparison module. The expression for the adjustment coefficient is: ； In the formula, Z is the adjustment coefficient. , , These are the photovoltaic panel wear coefficient, the light transmittance of the photovoltaic panel surface, and the temperature deviation index, respectively. , , These are preset proportional coefficients for the photovoltaic panel wear coefficient, the light transmittance of the photovoltaic panel surface, and the temperature deviation index, respectively. , , All are greater than 0; Correction module: Calculates the adjustment coefficient uploaded by the processing module and the initial cleaning device opening threshold, calculates the correction threshold, obtains the corrected opening threshold, and uploads the result to the adjustment module; Calculating the correction activation threshold includes the following steps: Let the initial opening threshold be Adjust the activation threshold In the formula, This is the initial activation threshold. Z is the adjustment coefficient used to correct the opening threshold; The adjustment module adjusts the threshold for the cleaning device to be activated based on the results uploaded by the correction module.

2. The integrated photovoltaic power generation system according to claim 1, characterized in that: The cleaning device includes a water spray motor (21), a vacuum motor (22) is provided on one side of the water spray motor (21), a water pump (23) is provided on the other side of the vacuum motor (22), a vacuum port (24) is provided on one side of the water pump (23), a water spray nozzle (25) is provided on one side of the vacuum port (24), a brush (26) is provided on one side of the water spray nozzle (25), a gear A (27) is fixedly connected to one end of the vacuum motor (22), the gear A (27) meshes with a rack A (7), a gear B (8) is fixedly connected to one side of the rack A (7), the gear B (8) meshes with a rack B (9), and the rack B (9) is fixedly connected to the photovoltaic panel body (1).

Images