Photovoltaic power generation optimization method for fishing-light complementary site and related device

Abstract

The invention provides a photovoltaic power generation optimization method for a fishing-light complementary site and a related device. The method comprises the following steps: acquiring a photovoltaic panel sunlight angle, a water surface wind speed, a water surface wave height, a water depth, a photovoltaic panel core parameter, a reflector parameter and double-measuring-point actually-measured light intensity data; determining the initial receiving radiation quantity of the photovoltaic panel according to the sunlight angle of the photovoltaic panel, the core parameters of the photovoltaic panel, the parameters of the reflector and the actually measured light intensity data of the double measuring points; according to the water surface wind speed, the water surface wave height, the water depth, the double-measuring-point actually-measured light intensity data and the reflector parameters, the water surface correction reflection coefficient is determined; correcting the initial received radiation quantity of the photovoltaic panel by adopting the water surface correction reflection coefficient to obtain the actual received radiation quantity of the photovoltaic panel; and according to the actually received radiation quantity of the photovoltaic panel, the inclination angle of the photovoltaic panel is adjusted, and then the photovoltaic power generation process of the fishing-light complementary site is optimized. Excessive concentration of local radiation quantity caused by secondary reflection of sunlight through a water surface-reflector can be avoided, and generation of hot spots on the photovoltaic panel is inhibited.

Description

Technical Field

[0001] This application relates to the field of photovoltaic power generation technology, specifically to a photovoltaic power generation optimization method and related apparatus for a solar-fishery complementary site. Background Technology

[0002] Solar-aquaculture hybridization, as a combined utilization model that integrates photovoltaic power generation and aquaculture, has become an important application direction in the new energy field. Existing solar-aquaculture hybrid sites typically involve erecting a support structure above the water surface, arranging photovoltaic modules and reflectors at predetermined angles. The photovoltaic modules directly receive direct sunlight, while the reflectors reflect diffused light back onto the module surface, improving light energy utilization and enabling synergistic power generation and aquaculture. The core idea of ​​this technology is to maximize the capture of solar radiation by optimizing the initial installation angle of the modules and reflectors. Its design mainly relies on the radiation calculation logic of conventional terrestrial photovoltaics, adapted to the spatial layout characteristics of the solar-aquaculture hybrid site.

[0003] However, due to the strong reflective properties of water, sunlight will form a secondary reflection path, which involves reflection from the water surface, reflection from the reflector, and reception by the photovoltaic module. This secondary reflection can easily lead to excessive concentration of radiation received by local areas of the photovoltaic module, forming hot spots. This not only significantly reduces the power generation efficiency of the photovoltaic module, but may also accelerate the aging of the internal circuits of the module, shorten the module's lifespan, and seriously affect the long-term stable operation of the fishery-solar hybrid system. Summary of the Invention

[0004] This application provides a photovoltaic power generation optimization method and related apparatus for a solar-fishery complementary site, which can avoid excessive local radiation concentration caused by secondary reflection of sunlight through the water surface-reflector and suppress the generation of hot spots on the photovoltaic panel.

[0005] The first aspect of this application provides a method for optimizing photovoltaic power generation in a solar-fishery hybrid site, the method comprising: Acquire solar panel illumination angle, water surface wind speed, water surface wave height, water depth, core parameters of solar panels, parameters of reflectors, and measured light intensity data at dual measurement points; The initial amount of radiation received by the photovoltaic panel is determined based on the solar angle of the photovoltaic panel, the core parameters of the photovoltaic panel, the parameters of the reflector, and the measured light intensity data at the dual measuring points. Based on the water surface wind speed, water surface wave height, water depth, measured light intensity data at both measuring points, and reflector parameters, determine the corrected water surface reflection coefficient; The initial received radiation of the photovoltaic panel is corrected using the water surface correction reflection coefficient to obtain the actual received radiation of the photovoltaic panel; Based on the actual amount of radiation received by the photovoltaic panel, the tilt angle of the photovoltaic panel is adjusted, thereby optimizing the photovoltaic power generation process of the fishery-solar complementary site.

[0006] In one possible implementation, determining the corrected water surface reflection coefficient based on the water surface wind speed, water surface wave height, water depth, measured light intensity data from the two measuring points, and reflector parameters includes: The water surface foundation reflection coefficient is determined based on the wind speed, wave height, and water depth. Based on the measured light intensity data at the two measuring points and the reflector parameters, the secondary reflection transmission coefficient of the water surface is determined. The corrected reflection coefficient of the water surface is determined based on the basic reflection coefficient and the secondary reflection transmission coefficient of the water surface.

[0007] In one possible implementation, determining the water surface base reflection coefficient based on the water surface wind speed, water surface wave height, and water depth includes: Calculate the surface roughness parameters based on the wind speed and wave height. Based on the water depth, determine the water depth attenuation coefficient for reflected light; The water surface roughness parameter, water depth attenuation coefficient, and solar radiation angle of the photovoltaic panel are used to calculate the water surface foundation reflection coefficient.

[0008] In one possible implementation, determining the secondary reflection transmission coefficient of the water surface based on the measured light intensity data from the two measuring points and the reflector parameters includes: From the measured light intensity data at the dual measurement points, extract the direct light intensity, reflected light intensity, and total light intensity of the photovoltaic panel surface; Extract the reflectivity of the reflector material and the degradation factor based on the reflector parameters. The secondary reflection transmission coefficient of the water surface is calculated based on the reflected light intensity, the reflectivity of the reflector material, the attenuation factor over the years of use, and the attenuation characteristics of light intensity due to water depth.

[0009] In one possible implementation, the initial received radiation of the photovoltaic panel is determined based on the photovoltaic panel's solar angle, core parameters of the photovoltaic panel, reflector parameters, and measured light intensity data from two measuring points, including: Based on the core parameters of the photovoltaic panel, determine the effective light-receiving area of ​​the photovoltaic panel; Based on the reflector parameters, determine the effective reflectivity and angle gain coefficient of the reflector; The solar radiation atmospheric transmittance is determined based on the solar panel's solar irradiance angle. The measured value of direct sunlight intensity on the photovoltaic panel surface is extracted from the measured light intensity data at the dual measurement points. The amount of direct sunlight radiation of the photovoltaic panel is determined based on the effective light-receiving area, the atmospheric transmittance of solar radiation, and the measured value of direct sunlight intensity. Extract the measured light intensity on the reflector surface from the measured light intensity data at the dual measurement points; The amount of reflected light radiation from the reflector is determined based on the effective reflectivity, angle gain coefficient, and measured light intensity on the reflector surface. The initial radiation received by the photovoltaic panel is obtained by superimposing the direct light radiation and the reflected light radiation.

[0010] In one possible implementation, the step of correcting the initial received radiation of the photovoltaic panel using the water surface corrected reflectance coefficient to obtain the actual received radiation of the photovoltaic panel includes: Based on the water surface correction reflection coefficient and the initial received radiation of the photovoltaic panel, calculate the artificially high value of radiation caused by secondary reflection; Based on the initial radiation received by the photovoltaic panel and the artificially high value of the radiation, the preliminary corrected radiation amount is determined; The reflected light dispersion coefficient is determined based on the wind speed over the water surface. The uniformity compensation coefficient of reflected light is determined based on the water surface wave height. The actual radiation received by the photovoltaic panel is calculated based on the preliminary corrected radiation amount, the reflected light dispersion coefficient, and the reflected light uniformity compensation coefficient.

[0011] In one possible implementation, adjusting the tilt angle of the photovoltaic panel based on the actual amount of radiation received by the photovoltaic panel includes: The actual irradiance per unit area of ​​the photovoltaic panel is determined based on the actual amount of radiation received and the effective light-receiving area of ​​the photovoltaic panel. The actual irradiance per unit area of ​​the photovoltaic panel is compared with the preset upper and lower limits of the safe irradiance of the photovoltaic panel to obtain the irradiance comparison results; Based on the irradiance comparison results, the tilt angle of the photovoltaic panel is adjusted until the actual irradiance per unit area of ​​the photovoltaic panel is between the preset upper and lower limits of the safe irradiance of the photovoltaic panel.

[0012] This example provides a method for optimizing photovoltaic power generation in a solar-fishery complementary site. First, it acquires data on the photovoltaic panel's solar irradiance angle, water surface wind speed, water surface wave height, water depth, core parameters of the photovoltaic panel, parameters of the reflector, and measured light intensity data at two measurement points. Then, based on this data, it determines the initial received radiation amount of the photovoltaic panel. Next, it determines the water surface correction reflection coefficient using the remaining data. This correction reflection coefficient is then used to correct the initial received radiation amount to obtain the actual received radiation amount. Finally, it dynamically adjusts the tilt angle of the photovoltaic panel based on the actual received radiation amount, thereby optimizing the photovoltaic power generation process. By capturing environmental parameters and measured light intensity data of the solar-fishery complementary site, the method quantifies the impact of secondary reflection from the water surface and reflector on the photovoltaic panel's radiation reception. By dynamically adjusting the tilt angle of the photovoltaic panel, it ensures uniform and stable irradiance intensity on the photovoltaic panel surface, avoiding excessive localized radiation concentration caused by secondary reflection from the water surface and reflector, and suppressing the generation of hot spots on the photovoltaic panel.

[0013] A second aspect of this application provides a photovoltaic power generation optimization device for a fishery-solar hybrid site, the device comprising: The first acquisition unit is used to acquire solar panel illumination angle, water surface wind speed, water surface wave height, water depth, core parameters of the solar panel, reflector parameters, and measured light intensity data at dual measurement points; The first processing unit is used to determine the initial amount of radiation received by the photovoltaic panel based on the solar angle of the photovoltaic panel, the core parameters of the photovoltaic panel, the parameters of the reflector, and the measured light intensity data of the dual measuring points. The second processing unit is used to determine the corrected reflection coefficient of the water surface based on the water surface wind speed, water surface wave height, water depth, measured light intensity data at the two measuring points and the reflector parameters. The third processing unit is used to correct the initial received radiation of the photovoltaic panel using the water surface correction reflection coefficient to obtain the actual received radiation of the photovoltaic panel. The adjustment unit is used to adjust the tilt angle of the photovoltaic panel according to the actual amount of radiation received by the photovoltaic panel, thereby optimizing the photovoltaic power generation process of the fishery-solar complementary site.

[0014] A third aspect of this application provides a terminal including a processor, an input device, an output device, and a memory, wherein the processor, input device, output device, and memory are interconnected, wherein the memory is used to store a computer program, the computer program including program instructions, and the processor is configured to invoke the program instructions to execute the steps of the photovoltaic power generation optimization method for a fishery-solar hybrid site as described in the first aspect of this application.

[0015] A fourth aspect of this application provides a computer-readable storage medium storing a computer program for electronic data interchange, wherein the computer program causes a computer to perform some or all of the steps described in the photovoltaic power generation optimization method for a fishery-solar hybrid site in the first aspect of this application.

[0016] A fifth aspect of this application provides a computer program product, comprising a non-transitory computer-readable storage medium storing a computer program operable to cause a computer to perform some or all of the steps described in the photovoltaic power generation optimization method for a fishery-solar hybrid site in the first aspect of this application. The computer program product may be a software installation package. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This application provides a schematic diagram of the overall process for optimizing photovoltaic power generation in a solar-fishery complementary site. Figure 2 This application provides a schematic diagram of the overall structure of a photovoltaic power generation optimization device for a fishery-solar hybrid site. Figure 3 This application provides a schematic diagram of the structure of a terminal. Figure label: First acquisition unit-1, first processing unit-2, second processing unit-3, third processing unit-4, adjustment unit-5. Detailed Implementation

[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0020] The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0021] In this application, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application can be combined with other embodiments.

[0022] To better understand the photovoltaic power generation optimization method for fishery-solar complementary sites provided in the embodiments of this application, the following is a brief introduction to the scenarios in which the photovoltaic power generation optimization method for fishery-solar complementary sites is applied. In solar-aquaculture hybrid power plants built in large reservoirs, lakes, and other bodies of water, photovoltaic panels and reflectors are suspended above the water surface by supports, while aquaculture is carried out simultaneously below, forming a composite utilization scenario where power generation is possible above and aquaculture is possible below. In daily operation, in addition to direct sunlight hitting the photovoltaic panels, some sunlight is first projected onto the water surface and reflected. The reflected light is then reflected a second time by the surrounding reflectors onto the surface of the photovoltaic panels. Originally, this design was intended to maximize the capture of light energy and improve power generation efficiency. However, in the actual environment, the water surface will form different wave heights due to changes in wind speed, causing the direction and intensity of the reflected light to be constantly in a state of dynamic fluctuation. In addition, the water depth has a slight attenuation effect on the reflected light, so the secondary reflected light cannot evenly cover the surface of the photovoltaic panels. In some areas, the radiation will be excessively concentrated due to the superposition of light, and over time, hot spots will form. This not only reduces the overall power generation efficiency of the photovoltaic panels, but also accelerates the aging and damage of the internal circuits of the photovoltaic panels due to local high temperatures, affecting the stable operation of the entire solar-aquaculture hybrid system.

[0023] The photovoltaic power generation optimization method for fishery-solar hybrid sites is applied to photovoltaic power generation optimization devices used in fishery-solar hybrid sites. Figure 1 A schematic diagram of the overall process for optimizing photovoltaic power generation in a solar-fishery hybrid facility is shown. Figure 1 As shown, it includes: S1. Obtain solar panel illumination angle, water surface wind speed, water surface wave height, water depth, photovoltaic panel core parameters, reflector parameters, and measured light intensity data at dual measurement points.

[0024] The solar panel's solar radiation angle can be obtained in real time by using tilt sensors and photoresistor modules to collect the angle between sunlight and the solar panel's light-receiving surface; the water surface wind speed can be measured using an ultrasonic anemometer deployed high on the site support without obstruction; the water surface wave height can be collected by a floating wave height sensor; the water depth can be measured by a water level gauge pre-deployed in the water area or by directly using the site's known average water depth data; the core parameters of the solar panel include the panel's length, width, and rated power, all of which are calibration parameters at the time of manufacture and can be obtained directly from the equipment's technical manual; the reflector parameters include the reflector's length, width, material, installation tilt angle, and service life, which are design parameters and operational record data from the site construction and can be directly retrieved from archives.

[0025] The measured light intensity data at the dual measurement points can be collected by setting up two irradiance sensor measurement points at the solar-fishery complementary site. The irradiance sensor at the first measurement point is installed at the center of the photovoltaic panel's light-receiving surface, with the sensor's light-receiving direction consistent with the photovoltaic panel's light-receiving surface. It is used to measure the total light intensity on the photovoltaic panel's surface, including the superposition value of direct light intensity and various reflected light intensities. In addition, a telescopic light-shielding tube module can be designed at this measurement point. The axis of the light-shielding tube is perpendicular to the photovoltaic panel's light-receiving surface. The light-shielding tube can block reflected light, scattered light, and other stray light, allowing only direct light to enter the sensor, thereby simultaneously measuring the measured value of direct light intensity on the photovoltaic panel's surface. The reflected light intensity on the photovoltaic panel's surface can be calculated by subtracting the measured value of direct light intensity from the total light intensity. The irradiance sensor at the second measurement point is installed at the center of the reflector's light-receiving surface, with the sensor's light-receiving direction consistent with the reflector's light-receiving surface. It is used to measure the total light intensity on the reflector's surface, which includes the light rays reflected from the water surface and projected onto the reflector, as well as some direct light. The irradiance sensors at both measurement points are silicon-based irradiance sensors.

[0026] S2. Determine the initial amount of radiation received by the photovoltaic panel based on the solar angle of the photovoltaic panel, the core parameters of the photovoltaic panel, the parameters of the reflector, and the measured light intensity data at the dual measuring points.

[0027] Step S2 includes the following sub-steps: S201. Determine the effective light-receiving area of ​​the photovoltaic panel based on the core parameters of the photovoltaic panel.

[0028] Specifically, the core parameters of a photovoltaic panel include the factory-specified length (L) and width (W). The effective light-receiving area is the actual projected area of ​​the light-receiving surface of the photovoltaic panel. Since the photovoltaic panel has a regular rectangular structure, it can be directly calculated using the formula... Calculated.

[0029] S202. Determine the effective reflectivity and angle gain coefficient of the reflector based on the reflector parameters.

[0030] Specifically, first obtain the reflector length from the reflector parameters. Installation tilt angle and material reflectivity Effective reflective factor The size matching and material properties of the reflector and photovoltaic panel can be used to determine the optimal formula. Calculation, where The length of the photovoltaic panel allows for the quantification of the reflector's effective light reflection efficiency; angle gain coefficient. Related to the reflector's tilt angle, a proper tilt angle makes it easier for reflected light to focus on the photovoltaic panel, as shown by the formula. Calculated.

[0031] S203. Determine the solar radiation atmospheric transmittance based on the solar panel's irradiance angle.

[0032] Specifically, the higher the solar altitude angle, the shorter the path of light through the atmosphere, the less atmospheric absorption and scattering loss, and the higher the transmittance. Considering the actual environment of the solar-fishery hybrid site, an empirical formula can be used. Calculate the atmospheric transmittance of solar radiation, where, For the solar panel's angle of sunlight, This represents the atmospheric transmittance of solar radiation.

[0033] S204. Extract the measured value of direct sunlight intensity on the photovoltaic panel surface from the measured light intensity data of the dual measuring points.

[0034] S205. Determine the direct light radiation of the photovoltaic panel based on the effective light-receiving area, the atmospheric transmittance of solar radiation, and the measured value of direct light intensity.

[0035] Specifically, the formula for calculating the direct solar radiation of a photovoltaic panel is as follows: in, This refers to the amount of direct sunlight radiation. This represents the measured value of direct sunlight intensity on the photovoltaic panel surface. The effective light-receiving area of ​​the photovoltaic panel. This represents the atmospheric transmittance of solar radiation.

[0036] S206. Extract the measured light intensity on the reflector surface from the measured light intensity data of the dual measuring points.

[0037] S207. Determine the amount of reflected light radiation from the reflector based on the effective reflectivity, angle gain coefficient, and measured light intensity on the reflector surface.

[0038] Specifically, the formula for calculating the amount of reflected light radiation from a reflector is as follows: in, This represents the amount of light radiation reflected by the reflector. The measured light intensity on the reflector surface. The effective reflectivity of the reflector This is the reflector angle gain coefficient.

[0039] S208. The direct light radiation and the reflected light radiation are superimposed and calculated to obtain the initial radiation received by the photovoltaic panel.

[0040] S3. Determine the corrected reflection coefficient of the water surface based on the water surface wind speed, water surface wave height, water depth, measured light intensity data at both measuring points, and reflector parameters.

[0041] Step S3 includes the following sub-steps: S301. Determine the water surface foundation reflection coefficient based on the water surface wind speed, water surface wave height, and water depth.

[0042] Specifically, step S301 includes: S3011. Calculate the surface roughness parameters based on the wind speed and wave height.

[0043] It is understandable that the roughness of the water surface directly affects the uniformity of reflected light. The higher the wind speed and the higher the wave height, the rougher the water surface, the more dispersed the reflected light, and the weaker the basic reflective ability. This can be quantified by considering the combined effect of wind speed and wave height, as shown in the following formula: in, This is a parameter for water surface roughness, ranging from 0 to 1. The closer the value is to 1, the rougher the water surface. For wind speed over water, This refers to the height of the water surface waves.

[0044] S3012. Determine the water depth attenuation coefficient for reflected light based on the water depth.

[0045] It is understandable that light attenuates due to scattering and absorption by the water as it travels through water. The deeper the water, the more significant the attenuation, resulting in weaker light intensity reaching the surface and being reflected. Therefore, the formula for calculating the water depth attenuation coefficient is as follows: in, This is the water depth attenuation coefficient for reflected light, ranging from 0 to 1. A value closer to 1 indicates weaker attenuation. The water is deep.

[0046] S3013. Calculate the water surface foundation reflection coefficient based on the water surface roughness parameter, water depth attenuation coefficient, and solar radiation angle of the photovoltaic panel.

[0047] The formula for calculating the water surface foundation reflection coefficient is as follows: in, The water surface base reflection coefficient, The maximum reflectance reference coefficient for calm water surfaces (no waves, very shallow water). For the solar panel's angle of sunlight, This is a parameter for water surface roughness. The water depth attenuation coefficient is the water body's ability to reflect light.

[0048] S302. Based on the measured light intensity data of the two measuring points and the parameters of the reflector, determine the secondary reflection transmission coefficient of the water surface.

[0049] Specifically, step S302 includes: S3021. Extract the direct light intensity, reflected light intensity, and total light intensity of the reflector surface from the measured light intensity data of the dual measuring points.

[0050] Among them, the direct light intensity on the photovoltaic panel surface is the direct light data measured at the first measuring point after the stray light is blocked by the telescopic light-shielding tube; the reflected light intensity on the photovoltaic panel surface is the difference between the total light intensity on the photovoltaic panel surface measured at the first measuring point and the direct light intensity; and the total light intensity on the reflector surface is the total light intensity of the reflector surface directly measured at the second measuring point, including the light reflected from the water surface and part of the direct light.

[0051] S3022. Extract the reflectivity of the reflector material and the attenuation factor over the service life from the reflector parameters.

[0052] The reflectivity of the reflector material is an inherent parameter calibrated at the factory and is determined by the material characteristics (e.g., 0.85 for aluminum reflectors and 0.92 for silver reflectors), and is directly retrieved from the reflector technical manual. The service life attenuation factor is derived based on the actual service life of the reflector. Reflectors exposed to the outdoors for extended periods will experience a decrease in reflectivity due to oxidation and dust accumulation. A linear attenuation model is used to determine this factor, and the formula for calculating the service life attenuation factor is shown below: in, The lifespan degradation factor for reflectors. This refers to the actual service life of the reflector.

[0053] S3023. Calculate the secondary reflection transmission coefficient of the water surface based on the reflected light intensity, the reflectivity of the reflector material, the attenuation factor over the years of use, and the attenuation characteristics of the light intensity due to water depth.

[0054] The water surface secondary reflection transfer coefficient can quantify the energy transfer efficiency of sunlight through the path of reflection from the water surface → reflection from the reflector → reception by the photovoltaic panel. The calculation formula is shown below: in, The secondary reflection transmission coefficient of the water surface. The intensity of light reflected from the surface of the photovoltaic panel. This represents the total light intensity on the reflector surface. The reflectivity of the reflector material is... The lifespan degradation factor for reflectors. Because of the water depth, This is the attenuation term of light intensity due to water depth. Similar to the logic of the water depth attenuation coefficient, it is used to quantify the energy loss of light propagating in water.

[0055] S303. Determine the corrected reflection coefficient of the water surface based on the basic reflection coefficient and the secondary reflection transmission coefficient.

[0056] By superimposing the basic reflectivity of the water surface and the energy transfer efficiency of the secondary reflection path, a correction coefficient that comprehensively reflects the full-link reflection effect from water surface reflection to reflector reflection can be obtained. This coefficient is directly used for the secondary reflection correction of the photovoltaic panel's radiation, ensuring that the correction logic conforms to the actual light propagation path. The calculation formula for the water surface correction reflection coefficient is as follows: in, This is the water surface correction reflection coefficient; a larger value indicates a more significant impact of secondary reflection on the photovoltaic panel's radiation reception. The water surface base reflection coefficient, The secondary reflection transmission coefficient is denoted by .

[0057] S4. The initial received radiation amount of the photovoltaic panel is corrected using the water surface correction reflection coefficient to obtain the actual received radiation amount of the photovoltaic panel.

[0058] Step S4 includes the following sub-steps: S401. Calculate the artificially high value of radiation caused by secondary reflection based on the water surface correction reflection coefficient and the initial radiation received by the photovoltaic panel.

[0059] The artificially high radiation value is the redundant energy included in the initial radiation received by the photovoltaic panel due to the secondary reflection path from water surface reflection to reflector re-reflection, which should not actually be included in the effective utilization. The calculation formula is as follows: in, This is an artificially high value of radiation due to secondary reflection. This represents the initial amount of radiation received by the photovoltaic panel. Corrected reflection coefficient for water surface.

[0060] S402. Determine the preliminary corrected radiation amount based on the initial radiation amount received by the photovoltaic panel and the falsely high value of the radiation amount.

[0061] The purpose of this step is to first eliminate the redundant energy brought about by secondary reflections to obtain a basic radiation amount that is close to the actual effective utilization. By subtracting the artificially high value of radiation from the initial radiation received by the photovoltaic panel, a preliminary corrected radiation amount can be obtained.

[0062] S403. Determine the reflected light dispersion coefficient based on the wind speed on the water surface.

[0063] It is understandable that the greater the wind speed over the water surface and the more violent the water ripples, the wider the diffusion range of reflected light, and the more dispersed the reflected light energy actually reaching the photovoltaic panel. Therefore, it is necessary to dynamically adjust the amount of radiation using a dispersion coefficient. The formula for calculating the reflected light dispersion coefficient is as follows: in, The reflected light dispersion coefficient is... For wind speed over water, To maximize the function, ensure that the coefficient is not less than 0.8.

[0064] S404. Determine the uniformity compensation coefficient of reflected light based on the water surface wave height.

[0065] It is understandable that when the wave height is low, the reflected light is prone to local focusing (poor uniformity), requiring a reduction in the compensation coefficient to avoid energy concentration. Once the wave height exceeds a certain threshold, the uniformity of the reflected light tends to stabilize, and the compensation coefficient remains constant. The formula for calculating the compensation coefficient for the uniformity of the reflected light is shown below: in, This is the compensation coefficient for the uniformity of reflected light. This refers to the height of the water surface waves.

[0066] S405. Calculate the actual radiation received by the photovoltaic panel based on the preliminary corrected radiation amount, reflected light dispersion coefficient, and reflected light uniformity compensation coefficient.

[0067] The actual radiation received by the photovoltaic panel takes into account secondary reflection redundancy elimination, dispersion caused by wind speed, and uniformity caused by wave height, ultimately reflecting the actual effective radiant energy that the photovoltaic panel can utilize. The formula for calculating the actual radiation received by the photovoltaic panel is as follows: in, This represents the actual amount of radiation received by the photovoltaic panel. To initially correct the radiation levels, The reflected light dispersion coefficient is... This is the compensation coefficient for the uniformity of reflected light.

[0068] S5. Adjust the tilt angle of the photovoltaic panel according to the actual amount of radiation received by the photovoltaic panel, thereby optimizing the photovoltaic power generation process of the fishery-solar complementary site.

[0069] Step S5 includes the following sub-steps: S501. Determine the actual irradiance per unit area of ​​the photovoltaic panel based on the actual amount of radiation received and the effective light-receiving area of ​​the photovoltaic panel.

[0070] The actual irradiance per unit area of ​​a photovoltaic panel is a key indicator used to measure the actual amount of light energy received per unit area on the surface of the photovoltaic panel. It directly reflects the concentration of irradiance. The formula for calculating the actual irradiance per unit area of ​​a photovoltaic panel is as follows: in, This represents the actual irradiance per unit area of ​​the photovoltaic panel. This represents the actual amount of radiation received by the photovoltaic panel. This refers to the effective light-receiving area of ​​the photovoltaic panel.

[0071] S502. Compare the actual irradiance per unit area of ​​the photovoltaic panel with the preset upper and lower limits of the safe irradiance of the photovoltaic panel to obtain the irradiance comparison result.

[0072] Among them, the preset safe radiation intensity upper and lower limits The specifications are determined based on the photovoltaic panel's factory technical parameters and are provided by the photovoltaic panel manufacturer. Specifically, when... The irradiation intensity was deemed insufficient. The radiation intensity was determined to be too high; when The irradiation intensity was determined to be appropriate.

[0073] S503. Based on the irradiance comparison results, adjust the tilt angle of the photovoltaic panel until the actual irradiance per unit area of ​​the photovoltaic panel is between the preset upper and lower limits of the safe irradiance of the photovoltaic panel.

[0074] Among them, when the comparison result shows that the irradiance is too high, the tilt angle of the photovoltaic panel can be increased (increasing the angle between the light-receiving surface of the photovoltaic panel and the horizontal plane), thereby reducing the amount of radiation received per unit area by reducing the light-receiving area. The adjustment range is positively correlated with the difference from the upper limit. When the comparison result indicates insufficient irradiation intensity At this time, the tilt angle of the photovoltaic panel can be reduced (the light-receiving surface of the photovoltaic panel is closer to horizontal), thereby increasing the amount of radiation received per unit area by increasing the light-receiving area. The adjustment range is positively correlated with the difference below the lower limit. When the comparison results indicate that the irradiation intensity is appropriate, the current tilt angle should be kept unchanged.

[0075] Furthermore, during the adjustment of the photovoltaic panels, each time the tilt angle of the photovoltaic panels is adjusted, the new actual irradiance per unit area is recalculated according to the procedures from S1 to S501, until the value stabilizes at a certain level. and In between, the optimization of the photovoltaic power generation process at the fishery-solar complementary site was completed.

[0076] This example provides a method for optimizing photovoltaic power generation in a solar-fishery complementary site. First, it acquires data on the photovoltaic panel's solar irradiance angle, water surface wind speed, water surface wave height, water depth, core parameters of the photovoltaic panel, parameters of the reflector, and measured light intensity data at two measurement points. Then, based on this data, it determines the initial received radiation amount of the photovoltaic panel. Next, it determines the water surface correction reflection coefficient using the remaining data. This correction reflection coefficient is then used to correct the initial received radiation amount to obtain the actual received radiation amount. Finally, it dynamically adjusts the tilt angle of the photovoltaic panel based on the actual received radiation amount, thereby optimizing the photovoltaic power generation process. By capturing environmental parameters and measured light intensity data of the solar-fishery complementary site, the method quantifies the impact of secondary reflection from the water surface and reflector on the photovoltaic panel's radiation reception. By dynamically adjusting the tilt angle of the photovoltaic panel, it ensures uniform and stable irradiance intensity on the photovoltaic panel surface, avoiding excessive localized radiation concentration caused by secondary reflection from the water surface and reflector, and suppressing the generation of hot spots on the photovoltaic panel.

[0077] For those consistent with the above, please refer to Figure 2 , Figure 2 This application provides a schematic diagram of a photovoltaic power generation optimization device for a solar-fishery complementary site. (See attached diagram.) Figure 2 As shown, the device includes: The first acquisition unit 1 is used to acquire solar panel illumination angle, water surface wind speed, water surface wave height, water depth, core parameters of the photovoltaic panel, reflector parameters, and measured light intensity data at dual measurement points; The first processing unit 2 is used to determine the initial received radiation of the photovoltaic panel based on the solar angle of the photovoltaic panel, the core parameters of the photovoltaic panel, the parameters of the reflector and the measured light intensity data of the dual measuring points. The second processing unit 3 is used to determine the corrected reflection coefficient of the water surface based on the water surface wind speed, water surface wave height, water depth, measured light intensity data at the dual measuring points and reflector parameters; The third processing unit 4 is used to correct the initial received radiation of the photovoltaic panel using the water surface correction reflection coefficient to obtain the actual received radiation of the photovoltaic panel. Adjustment unit 5 is used to adjust the tilt angle of the photovoltaic panel according to the actual amount of radiation received by the photovoltaic panel, thereby optimizing the photovoltaic power generation process of the fishery-solar complementary site.

[0078] For examples consistent with the above embodiments, please refer to... Figure 3 , Figure 3 A schematic diagram of a terminal structure provided in an embodiment of this application is shown in the figure. It includes a processor, an input device, an output device, and a memory. The processor, input device, output device, and memory are interconnected. The memory is used to store a computer program, which includes program instructions. The processor is configured to call the program instructions. The program includes instructions for performing the following steps. Acquire solar panel illumination angle, water surface wind speed, water surface wave height, water depth, core parameters of solar panels, parameters of reflectors, and measured light intensity data at dual measurement points; The initial amount of radiation received by the photovoltaic panel is determined based on the solar angle of the photovoltaic panel, the core parameters of the photovoltaic panel, the parameters of the reflector, and the measured light intensity data at the dual measuring points. Based on the water surface wind speed, water surface wave height, water depth, measured light intensity data at both measuring points, and reflector parameters, determine the corrected water surface reflection coefficient; The initial received radiation of the photovoltaic panel is corrected using the water surface correction reflection coefficient to obtain the actual received radiation of the photovoltaic panel; Based on the actual amount of radiation received by the photovoltaic panel, the tilt angle of the photovoltaic panel is adjusted, thereby optimizing the photovoltaic power generation process of the fishery-solar complementary site.

[0079] This example provides a method for optimizing photovoltaic power generation in a solar-fishery complementary site. First, it acquires data on the photovoltaic panel's solar irradiance angle, water surface wind speed, water surface wave height, water depth, core parameters of the photovoltaic panel, parameters of the reflector, and measured light intensity data at two measurement points. Then, based on this data, it determines the initial received radiation amount of the photovoltaic panel. Next, it determines the water surface correction reflection coefficient using the remaining data. This correction reflection coefficient is then used to correct the initial received radiation amount to obtain the actual received radiation amount. Finally, it dynamically adjusts the tilt angle of the photovoltaic panel based on the actual received radiation amount, thereby optimizing the photovoltaic power generation process. By capturing environmental parameters and measured light intensity data of the solar-fishery complementary site, the method quantifies the impact of secondary reflection from the water surface and reflector on the photovoltaic panel's radiation reception. By dynamically adjusting the tilt angle of the photovoltaic panel, it ensures uniform and stable irradiance intensity on the photovoltaic panel surface, avoiding excessive localized radiation concentration caused by secondary reflection from the water surface and reflector, and suppressing the generation of hot spots on the photovoltaic panel.

[0080] The above mainly describes the solutions of the embodiments of this application from the perspective of the method execution process. It is understood that, in order to achieve the above functions, the terminal includes the corresponding hardware structure and / or software modules for executing each function. Those skilled in the art should readily recognize that, in conjunction with the units and algorithm steps of the various examples described in the embodiments provided herein, this application can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed in hardware or by computer software driving hardware 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.

[0081] This application embodiment can divide the terminal into functional units according to the above method example. For example, each function can be divided into a separate functional unit, or two or more functions can be integrated into one processing unit. The integrated unit can be implemented in hardware or as a software functional unit. It should be noted that the unit division in this application embodiment is illustrative and only represents one logical functional division. In actual implementation, there may be other division methods.

[0082] This application also provides a computer storage medium storing a computer program for electronic data exchange, which causes a computer to perform some or all of the steps of any of the photovoltaic power generation optimization methods for fishery-solar hybrid sites as described in the above method embodiments.

[0083] This application also provides a computer program product, which includes a non-transitory computer-readable storage medium storing a computer program that causes a computer to perform some or all of the steps of any of the photovoltaic power generation optimization methods for fishery-solar hybrid sites as described in the above method embodiments.

[0084] It should be noted that, for the sake of simplicity, the foregoing method embodiments are all described as a series of actions. However, those skilled in the art should understand that this application is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to this application. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to this application.

[0085] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0086] In the several embodiments provided in this application, it should be understood that the disclosed apparatus 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 devices or units may be electrical or other forms.

[0087] 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.

[0088] Furthermore, the functional units in the various embodiments of the 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. The integrated unit can be implemented in hardware or as a software program module.

[0089] If the integrated unit is implemented as a software program module and sold or used as an independent product, it can be stored in a computer-readable storage device (CMD). Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a memory and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned memory includes various media capable of storing program code, such as USB flash drives, read-only memory (ROM), random access memory (RAM), portable hard drives, magnetic disks, or optical disks.

[0090] Those skilled in the art will understand that all or part of the steps in the various methods of the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage device, which may include: a flash drive, a read-only memory, a random access memory, a magnetic disk, or an optical disk, etc.

[0091] The embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A method for optimizing photovoltaic power generation in a solar-fishery hybrid site, characterized in that, include: Acquire solar panel illumination angle, water surface wind speed, water surface wave height, water depth, core parameters of solar panels, parameters of reflectors, and measured light intensity data at dual measurement points; The initial amount of radiation received by the photovoltaic panel is determined based on the solar angle of the photovoltaic panel, the core parameters of the photovoltaic panel, the parameters of the reflector, and the measured light intensity data at the dual measuring points. Based on the water surface wind speed, water surface wave height, water depth, measured light intensity data at both measuring points, and reflector parameters, determine the corrected water surface reflection coefficient; The initial received radiation of the photovoltaic panel is corrected using the water surface correction reflection coefficient to obtain the actual received radiation of the photovoltaic panel; Based on the actual amount of radiation received by the photovoltaic panel, the tilt angle of the photovoltaic panel is adjusted, thereby optimizing the photovoltaic power generation process of the fishery-solar complementary site.

2. The photovoltaic power generation optimization method for fishery-solar hybrid sites according to claim 1, characterized in that, The determination of the corrected water surface reflection coefficient based on the water surface wind speed, water surface wave height, water depth, measured light intensity data at both measuring points, and reflector parameters includes: The water surface foundation reflection coefficient is determined based on the wind speed, wave height, and water depth. Based on the measured light intensity data at the two measuring points and the reflector parameters, the secondary reflection transmission coefficient of the water surface is determined. The corrected reflection coefficient of the water surface is determined based on the basic reflection coefficient and the secondary reflection transmission coefficient of the water surface.

3. The photovoltaic power generation optimization method for fishery-solar hybrid sites according to claim 2, characterized in that, The determination of the water surface foundation reflection coefficient based on the water surface wind speed, water surface wave height, and water depth includes: Calculate the surface roughness parameters based on the wind speed and wave height. Based on the water depth, determine the water depth attenuation coefficient for reflected light; The water surface roughness parameter, water depth attenuation coefficient, and solar radiation angle of the photovoltaic panel are used to calculate the water surface foundation reflection coefficient.

4. The photovoltaic power generation optimization method for fishery-solar hybrid sites according to claim 2, characterized in that, The determination of the secondary reflection transmission coefficient of the water surface based on the measured light intensity data at the dual measuring points and the reflector parameters includes: From the measured light intensity data at the dual measurement points, extract the direct light intensity, reflected light intensity, and total light intensity of the photovoltaic panel surface; Extract the reflectivity of the reflector material and the degradation factor based on the reflector parameters. The secondary reflection transmission coefficient of the water surface is calculated based on the reflected light intensity, the reflectivity of the reflector material, the attenuation factor over the years of use, and the attenuation characteristics of light intensity due to water depth.

5. The photovoltaic power generation optimization method for fishery-solar hybrid sites according to claim 1, characterized in that, Based on the solar panel's irradiance angle, core parameters of the solar panel, reflector parameters, and measured light intensity data from two measuring points, the initial received radiation of the solar panel is determined, including: Based on the core parameters of the photovoltaic panel, determine the effective light-receiving area of ​​the photovoltaic panel; Based on the reflector parameters, determine the effective reflectivity and angle gain coefficient of the reflector; The solar radiation atmospheric transmittance is determined based on the solar panel's solar irradiance angle. The measured value of direct sunlight intensity on the photovoltaic panel surface is extracted from the measured light intensity data at the dual measurement points. The amount of direct sunlight radiation of the photovoltaic panel is determined based on the effective light-receiving area, the atmospheric transmittance of solar radiation, and the measured value of direct sunlight intensity. Extract the measured light intensity on the reflector surface from the measured light intensity data at the dual measurement points; The amount of reflected light radiation from the reflector is determined based on the effective reflectivity, angle gain coefficient, and measured light intensity on the reflector surface. The initial radiation received by the photovoltaic panel is obtained by superimposing the direct light radiation and the reflected light radiation.

6. The photovoltaic power generation optimization method for fishery-solar hybrid sites according to claim 1, characterized in that, The step of correcting the initial received radiation of the photovoltaic panel using the water surface corrected reflection coefficient to obtain the actual received radiation of the photovoltaic panel includes: Based on the water surface correction reflection coefficient and the initial received radiation of the photovoltaic panel, calculate the artificially high value of radiation caused by secondary reflection; Based on the initial radiation received by the photovoltaic panel and the artificially high value of the radiation, the preliminary corrected radiation amount is determined; The reflected light dispersion coefficient is determined based on the wind speed over the water surface. The uniformity compensation coefficient of reflected light is determined based on the water surface wave height. The actual radiation received by the photovoltaic panel is calculated based on the preliminary corrected radiation amount, the reflected light dispersion coefficient, and the reflected light uniformity compensation coefficient.

7. The photovoltaic power generation optimization method for fishery-solar hybrid sites according to claim 1, characterized in that, The step of adjusting the tilt angle of the photovoltaic panel based on the actual amount of radiation received by the photovoltaic panel includes: The actual irradiance per unit area of ​​the photovoltaic panel is determined based on the actual amount of radiation received and the effective light-receiving area of ​​the photovoltaic panel. The actual irradiance per unit area of ​​the photovoltaic panel is compared with the preset upper and lower limits of the safe irradiance of the photovoltaic panel to obtain the irradiance comparison results; Based on the irradiance comparison results, the tilt angle of the photovoltaic panel is adjusted until the actual irradiance per unit area of ​​the photovoltaic panel is between the preset upper and lower limits of the safe irradiance of the photovoltaic panel.

8. A photovoltaic power generation optimization device for a fishery-solar hybrid site, characterized in that, include: The first acquisition unit is used to acquire solar panel illumination angle, water surface wind speed, water surface wave height, water depth, core parameters of the solar panel, reflector parameters, and measured light intensity data at dual measurement points; The first processing unit is used to determine the initial amount of radiation received by the photovoltaic panel based on the solar angle of the photovoltaic panel, the core parameters of the photovoltaic panel, the parameters of the reflector, and the measured light intensity data of the dual measuring points. The second processing unit is used to determine the corrected reflection coefficient of the water surface based on the water surface wind speed, water surface wave height, water depth, measured light intensity data at the two measuring points and the reflector parameters. The third processing unit is used to correct the initial received radiation of the photovoltaic panel using the water surface correction reflection coefficient to obtain the actual received radiation of the photovoltaic panel. The adjustment unit is used to adjust the tilt angle of the photovoltaic panel according to the actual amount of radiation received by the photovoltaic panel, thereby optimizing the photovoltaic power generation process of the fishery-solar complementary site.

9. A terminal, characterized in that, The device includes a processor, an input device, an output device, and a memory, which are interconnected. The memory stores a computer program, which includes program instructions. The processor is configured to invoke the program instructions to execute the photovoltaic power generation optimization method for a fishery-solar hybrid site as described in any one of claims 1-7.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program, the computer program including program instructions, which, when executed by a processor, cause the processor to perform the photovoltaic power generation optimization method for a fishery-solar complementary site as described in any one of claims 1-7.

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