Ground surface light radiation field test method and system

Abstract

The invention relates to the technical field of solar power generation, and discloses an earth surface light radiation field test method and test system. The invention aims to overcome the defects that variable factors are relatively single, measurement data are not comprehensive and a measurement method is not advanced enough, the inclination angle and height morphological parameters of a light receiving target surface are automatically adjusted by utilizing an intelligent control method, and different geographic positions and ground conditions are controlled; the irradiance of different areas of the light receiving target surface is accurately and quickly measured, the irradiance distribution condition of the light receiving target surface under the influence of different factors is obtained, test data support is provided for optimizing the arrangement structure of the light receiving target surface matrix and improving the surface reflection condition through a large number of mapping relations, and then the solar energy utilization efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the field of solar power generation technology, and in particular to a method and system for on-site testing of surface light radiation. Background Art

[0002] In recent years, the scale of the solar power generation industry has continued to expand, the industry has continued to integrate and develop, the technology has been continuously updated and iterated, and the application prospects are very broad. At the same time, the technology of photovoltaic modules has continued to upgrade. The back of the bifacial photovoltaic module can absorb the light reflected or diffusely reflected by the ground, thereby obtaining power generation gain and increasing the overall power generation of the module. When the photoelectric conversion efficiency is close to the theoretical limit, bifacial photovoltaic modules have been rapidly promoted and applied due to their advantage of effectively improving the efficiency of light energy utilization, and their market share is increasing. However, due to factors such as unconcentrated ground reflection, uneven irradiation distribution, and shadow obstruction by the mounting bracket, there is a large amount of power generation efficiency loss in the bifacial photovoltaic backplane.

[0003] Existing studies have shown that the power generation gain of the backplane of photovoltaic modules is mainly controlled by the ground reflected radiation, and the ground reflected radiation received by the backplane is related to many factors and can be divided into two categories according to the source. One category is internal factors such as the installation inclination, azimuth, distribution pattern, row spacing, height from the ground, and shadow obstruction of photovoltaic modules; the other category is external factors such as geographical location (longitude, latitude and altitude), climatic conditions, time, real-time sky position of the sun (declination and solar hour angle), solar altitude and azimuth, ground conditions (surface material, dryness, surface morphology, smoothness, ground inclination and surface reflectivity).

[0004] The irradiance of photovoltaic modules is affected by the coupling of multiple factors, some of which affect each other. For example, different geographical locations and ground reflectivity have different effects on the optimal installation inclination of photovoltaic modules. For example, the optimal installation inclination and azimuth of photovoltaic modules also change with the real-time position of the sun in the sky. However, due to the high cost of automatic tracking devices, the actual photovoltaic arrays often have fixed inclinations, and the azimuths are mostly towards the equator. Therefore, under the existing conditions, it is particularly important to study the influence of morphological parameters such as installation inclination and installation height, as well as external conditions such as ground conditions on irradiance, so as to obtain the maximum irradiation on the target surface and improve power generation efficiency.

[0005] Existing research on increasing the power generation gain by increasing the irradiation of the photovoltaic module backplane is mostly focused on calculating the relationship between solar radiation and the inclination angle of the photovoltaic device under ideal conditions, establishing theoretical models, etc., but there are few field test studies, and there are some shortcomings: 1. The variable factors are relatively single. Ground reflected radiation is the result of the combined influence of multiple factors including the aforementioned factors. However, existing research is limited by the complexity of the test steps and high costs. Most of them are measured through single-factor or multi-factor orthogonal test designs, which deviates greatly from the actual situation.

[0006] 2. The measurement data is not comprehensive enough. The irradiation distribution of photovoltaic modules is uneven. As the angle of incidence of the sun changes, the light intensity in different areas will also change. Especially for the photovoltaic arrays of centralized photovoltaic power stations, the light-receiving area is larger and is more obviously affected by the ground reflection conditions. The difference in irradiance in different areas is more significant. However, existing research focuses on measuring the center point or representative light-receiving point of a single photovoltaic module, and does not measure the irradiance at different positions of the backplane of the photovoltaic array. Therefore, the distribution of the irradiance of the photovoltaic backplane cannot be obtained.

[0007] 3. The measurement method is not advanced enough. For example, when testing the effect of the reflection angle of the background material on the backplane irradiation, the background material is simply laid on the ground and the angle is adjusted manually, which is time-consuming and laborious. Due to this limitation, the variable range control of this type of test is relatively extensive, the accuracy is insufficient, the amount of test data is small, and the analysis and utilization value is low. Summary of the invention

[0008] The purpose of the present invention is to provide a method and system for on-site testing of surface light radiation to overcome the shortcomings of the above-mentioned background technology, and to use an intelligent control method to automatically adjust the morphological parameters such as the inclination and height of the light-receiving target surface, while controlling different ground conditions, accurately and quickly measure the irradiance of different areas of the light-receiving target surface, and obtain the distribution of the irradiance of the light-receiving target surface under the influence of different factors. Through a large number of mapping relationships, experimental data support is provided for optimizing the layout structure of the light-receiving target surface array and improving the surface reflection conditions, thereby improving the efficiency of solar energy utilization.

[0009] To achieve the above-mentioned purpose, the present invention provides a method for on-site testing of surface light radiation, comprising the following steps: running a radiation testing system to collect irradiance, and recording the measurement time, irradiance measurement value, the inclination angle and height of the light-receiving target surface, and the relative position of the radiation testing system on the light-receiving target surface; synchronously collecting weather data of the radiation testing system during the irradiance measurement process; analyzing the mapping relationship between the geographical location, ground conditions, inclination angle and height of the light-receiving target surface and the relative position on the light-receiving target surface of the test site and the irradiance measurement value; taking the maximum annual cumulative irradiation as the goal, obtaining the best geographical location, best ground conditions, best inclination angle and best height of the light-receiving target surface of the site.

[0010] Furthermore, the inclination angle of the light receiving target surface f It is a number of groups of values ​​with intervals of 2°~5° in the range of 0°~360°.

[0011] Furthermore, the height of the light receiving target surface H It is a number of groups of values ​​ranging from 0.5 to 5 m with intervals of 0.05 to 0.20 m.

[0012] Furthermore, the relative position of the radiation test system on the light-receiving target surface is: the distance from the irradiance test point in the radiation test system to two adjacent edges of the light-receiving target surface.

[0013] Furthermore, the test site is determined based on the geographical location and ground conditions; the geographical location is the longitude, latitude and altitude of the test site; the ground conditions include site type, dryness, surface morphology, smoothness, ground inclination, and ground reflectivity; the site type is desert, mountain, grassland, snow, water surface or artificially modified ground; the dryness is dry or wet; the surface morphology is flat or curved; the smoothness is smooth or rough; the ground inclination is the slope angle of the test site; the ground reflectivity reflects the intensity of ground reflected radiation, which depends on the rock and soil properties, density, and color.

[0014] Furthermore, it includes an irradiance acquisition module, a test frame, an intelligent control module and an integrated operation module; the irradiance acquisition module is arranged on the test frame, and the irradiance acquisition module includes a radiation test system and a radiation data collector, the radiation data collector is used to obtain the irradiance information of the light-receiving target surface in real time and convert it into an electrical signal; the test frame is used to physically support and controllably adjust the inclination and height of the light-receiving target surface; the integrated operation module is used to generate the control instructions, and collect the data obtained by the radiation data collector, and then process, analyze and store them; the intelligent control module is electrically connected to the integrated operation module, and the intelligent control module is used to receive control instructions, control the test frame to adjust the inclination and height of the light-receiving target surface and the relative position of the radiation test system on the light-receiving target surface, and transmit the inclination and height of the light-receiving target surface and the relative position data of the radiation test system on the light-receiving target surface after the control instructions are completed to the integrated operation module.

[0015] Furthermore, the radiation testing system includes a string rod disposed on the light receiving target surface and a plurality of radiation testing instruments equidistantly arranged on the string rod.

[0016] Furthermore, the radiation testing instrument is one or more of a solar irradiance meter, a solar photometer, a radiometer, and a celestial sphere.

[0017] Furthermore, the test rack includes a bracket sleeve, a bracket telescopic rod, a connecting coaxial shaft, a central rotating shaft, a slide rail, an intelligently controlled lifting power device, an intelligently controlled rotating power device and an intelligently controlled translational power device; the upper part of the bracket sleeve is connected to the bracket telescopic rod through the intelligently controlled lifting power device, and the lower part can be connected to the rack foundation preset on the ground through bolts; the two sides of the connecting coaxial shaft are fixedly connected to the bracket; the central rotating shaft is fixed to the center line position of the light-receiving target surface, and the two sides of the central rotating shaft are connected to the upper part of the bracket telescopic rod through the intelligently controlled rotating power device; the string rod is connected to the slide rail through the intelligently controlled translational power device.

[0018] Furthermore, the intelligent control module changes the inclination angle of the light receiving target surface by intelligently controlling the rotating power device. f The intelligent control module changes the height of the light receiving target surface from the ground through the intelligent control lifting power equipment H The intelligent control module changes the position of the radiation test system on the target surface through the intelligent control translation power device. x and y .

[0019] Compared with the prior art, the present invention has the following beneficial effects: The present invention selects a test site according to the test purpose and needs, which can ensure that the test environment is representative and can accurately reflect the light reflection characteristics under the target geographical location and ground conditions; irradiance calibration of the radiation test system can improve the accuracy of the measurement data and provide a reliable basis for subsequent analysis; through multi-angle, multi-height and multi-directional measurements, the irradiance data under different conditions can be fully obtained, which is helpful for analyzing the distribution of irradiance received by the illuminated target surface; during the measurement process, weather data is synchronously collected, and the influence of weather factors on the irradiance reception on the illuminated target surface can be considered, which can be used as a basis for analyzing data; the collected data is entered into the analysis equipment to facilitate subsequent data processing and analysis; using statistical analysis methods, the mapping relationship between ground conditions and irradiance can be revealed, which can provide a basis for optimizing site selection. Taking the maximum annual cumulative irradiation as the goal, the best geographical location, best ground conditions, best inclination angle and best height of the illuminated target surface are obtained, which can provide suggestions for the best site and illuminated surface configuration for practical applications.

[0020] Furthermore, the inclination test range is determined to improve the accuracy and reliability of the test results.

[0021] Furthermore, refining the altitude test range will help study the influence of altitude on the light radiation receiving characteristics.

[0022] Furthermore, accurate recording of the test location helps to analyze the differences in optical radiation reception characteristics in different geographical locations.

[0023] Furthermore, geographical location and ground conditions are taken into consideration to ensure the comprehensiveness and accuracy of the test results.

[0024] Furthermore, the use of automated and integrated testing systems can help improve testing efficiency and accuracy.

[0025] Furthermore, arranging multiple radiation testing instruments on the string rod can help to accurately measure the irradiance distribution of the target surface, provide a more reliable basis for data analysis, and provide better configuration suggestions for the target surface.

[0026] Furthermore, the radiation testing instruments are devices used to measure solar radiation or sky radiation, and have high measurement accuracy and stability. They can accurately measure the irradiance under different conditions, providing a reliable basis for subsequent data analysis and processing.

[0027] Furthermore, the test rack can flexibly adjust the inclination, height and position of the light-receiving target surface to meet a variety of test requirements and provide equipment conditions for the automation and intelligence of the system.

[0028] Furthermore, the intelligently controlled lifting power equipment, intelligently controlled rotating power equipment and intelligently controlled translational power equipment can accurately adjust the inclination, height and position of the light-receiving target surface, thereby facilitating multi-angle, multi-height and multi-directional irradiance measurement, and providing strong support for in-depth analysis of light radiation reception characteristics. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings described herein are only for explanation purposes and are not intended to limit the scope of the present invention in any way. In addition, the shapes and proportional dimensions of the various components in the drawings are only schematic, used to help understand the present invention, and are not intended to specifically limit the shapes and proportional dimensions of the various components of the present invention.

[0030] Figure 1 It is a flow chart of a method for field testing of surface light radiation of the present invention.

[0031] Figure 2 It is a schematic diagram of a surface light radiation field testing system of the present invention.

[0032] Among them, 1. Test site; 2. Rack foundation; 3. Test rack; 4. Radiation test system; 31. Bracket sleeve; 32. Bracket telescopic rod; 33. Connecting coaxial; 34. Center rotating shaft; 35. Slide rail; 36. Light receiving target surface; 37. Intelligent control lifting power equipment; 38. Intelligent control rotating power equipment; 39. Intelligent control translational power equipment; 41. Radiation test instrument; 42. String rod; 5. Irradiance acquisition module; 6. Intelligent control module; 7. Integrated operation module. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below through specific embodiments in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0034] The embodiment of the present invention provides a specific implementation of a method and system for field testing of surface light radiation, including the following steps: S100: Select a test site 1, bury a rack foundation 2, assemble a test rack 3, install a light receiving target surface 36, combine an irradiance test module, an intelligent control module 6, and an integrated operation module 7, and measure the irradiance received by a specified area of ​​the light receiving target surface through a radiation test system 4; S200: By adjusting the relative position of the radiation test system 4 on the light receiving target surface 36 x and y , measuring the irradiance received by different areas of the light receiving target surface 36, and then determining the irradiance received by the entire light receiving target surface 36; S300: By adjusting the inclination angle of the light receiving target surface 36 f , measuring the irradiance received by the light receiving target surface 36 at different installation inclination angles; S400: Controlling the height of the light receiving target surface 36 from the ground by adjusting the height of the bracket H , measuring the irradiance received by the light receiving target surface 36 at different heights; S500: measuring the irradiance received by the light receiving target surface 36 at different geographical locations or ground conditions by moving the position of the test rack 3; S600: Transmit, process, analyze and store the geographical location of the site, ground conditions, inclination and height of the light-receiving target surface 36, the relative position of the radiation test system 4 on the light-receiving target surface 36 and the corresponding irradiance test data, and establish a mapping relationship between the geographical location of the test site 1, ground conditions, inclination and height of the light-receiving target surface 36 and the maximum annual cumulative irradiance.

[0035] During the execution of step S100, the selected test site 1 needs to have a pre-buried rack foundation. After the test rack 3 is assembled during the test, the radiation test instrument 41 is calibrated. Before formally collecting radiation data, the light-receiving target surface 36 is turned to face the sun directly, and data from each radiation meter is collected. The ratio of the test results of each radiation meter is used as a correction factor and synchronized to the integrated operating system for calibration, thereby eliminating relative errors caused by different sensitivities between the radiation meters.

[0036] During the execution of step S200, the relative position of the radiation test system 4 on the light receiving target surface 36 is controlled by the integrated operation module 7. x and y, dividing the entire light-receiving target surface 36 into different measurement areas.

[0037] in: x It can be set to any natural number according to the accuracy requirement. Generally, it is recommended to be 1 to 10, and the position numbers are (1, 2, 3, ..., m) in sequence. y The number of radiation test instruments 41 can be controlled to be any natural number according to the accuracy requirement, and is generally recommended to be 1 to 10, and the instrument numbers are (1, 2, 3, ..., n) in sequence; The radiation data measured by the radiation test instrument 41 in each measurement area reflects the irradiance of the measurement area. The irradiance of the entire target surface 36 is comprehensively reflected by the irradiance of mn measurement areas. Distribution situation.

[0038] During the execution of step S300, the inclination angle of the light receiving target surface 36 on the test rack 3 is automatically controlled by the integrated operation module 7. f ; The control adjustment interval is 2°~5°.

[0039] The inclination angle of the light receiving target surface 36 is f It can be any angle between 0° and 360°.

[0040] During the execution of step S400, the extension length of the support telescopic rod 32 of the test rack 3 is automatically controlled by the integrated operation module 7, thereby controlling the height of the light receiving target surface 36. H ; The control adjustment interval is 0.05~0.20 m.

[0041] The height of the light receiving target surface 36 is H It can be any height allowed by the bracket, and 0.5~5 m is generally recommended.

[0042] During the execution of step S500 , the geographical location and ground conditions of the light receiving target surface 36 are changed by changing the test site 1 where the test rack 3 is installed.

[0043] The geographical location can be arbitrarily controlled according to the test requirements and purposes, and the ground conditions can be selected as natural ground or artificially modified ground according to the test requirements.

[0044] During the execution of steps S100 to S500, the geographical location L, the ground condition B, the inclination angle of the light receiving target surface 36 can be controlled. f 、Light receiving target surface 36 height H The multiple factors in the factors remain unchanged, and only one of the factors is changed, so as to determine the effect of this factor on the irradiance received by the light receiving target surface 36. WThe influence of multiple factors can also be combined to jointly determine different geographical locations L, different ground conditions B, specific light receiving target surface 36 inclination f And the specific light receiving target surface 36 height H The irradiance received by the light receiving target surface 36 under the combination W .

[0045] The irradiance of each measuring point is multiplied by the area of ​​the measuring area it represents (the uniformly distributed measuring points divide the entire light-receiving target surface 36 into m×n measuring areas of the same size), which represents the irradiance of each measuring area. , and then sum all the measurement areas to determine the irradiance received by the entire light receiving target surface 36 , and then perform time integration (time integration of instantaneous radiation intensity) to determine the radiation exposure in one year or a specified time interval. Irradiance is the instantaneous radiation intensity per unit area (W / m 2 ); Radiation exposure is a long-term indicator of radiation intensity per unit area under time integration and has a time effect.

[0046] During the execution of S600, the irradiance received by different areas of the light receiving target surface 36 under different combination conditions of the above factors can be measured. , using Origin, Excel, MATLAB, Kingsoft spreadsheet software data processing software for data post-processing, for each factor variable (geographic location L, ground condition B, inclination f and height H ) is determined, the The corresponding geographical location at the time obtains the optimal geographical location, through The optimal ground conditions are obtained by the corresponding geographical location at the time. The corresponding inclination angle at time θ is used to obtain the optimal inclination angle. In the same way, we can continuously adjust the geographical location L, ground conditions B, inclination angle f and height H Factors can be used to obtain the maximum annual cumulative radiation amount received by the light receiving target surface 36 The best parameters (optimal inclination angle Optimal height , the best geographical location and optimal ground conditions ).

[0047] The geographical location L and ground condition B are distinguished by different test sites 1 and do not represent actual values, such as L1, L2, L3, ..., L γ Reference c venues at different geographical locations; B1, B2, B3, ..., B λ Reference l sites with different ground conditions; For different geographical locations L, ground conditions B, inclination f and height H Various working conditions under the combination.

[0048] like Figure 2 As shown, an embodiment of the present invention further provides a surface light radiation field test system, including an irradiance acquisition module 5, a test rack 3, an intelligent control module 6 and an integrated operation module 7.

[0049] The irradiance acquisition module 5 includes a radiation test system 4 and a radiation data collector, which are used to obtain the irradiance information of the light-receiving target surface 36 in real time and convert it into an electrical signal. The radiation test system 4 includes a string rod 42 arranged on the light-receiving target surface 36 and a plurality of radiation test instruments 41 arranged equidistantly on the string rod 42; the string rod 42 can be an alloy, metal or high molecular polymer material, with a certain strength and rigidity; a smooth protective paint layer is provided on the surface of the string rod 42 to increase reflection and reduce its own absorption of radiation. The radiation test instrument 41 can be fixed on the string rod 42 with a connecting ring and bolts, and the probe is facing the light-receiving direction and is vertically arranged on the light-receiving target surface 36. The light-receiving direction can be a direction facing the sky, mainly collecting direct solar radiation or secondary atmospheric reflection to the ground; it can also be a direction facing the ground, mainly collecting ground reflected radiation. The radiation test instrument 41 can be connected by a data cable or Bluetooth wireless connection to transmit the measured solar radiation data to the irradiance acquisition module 5. The radiation test instrument 41 can be one or more of a solar irradiance meter, a solar photometer, a radiometer, and a celestial sphere. The design and arrangement of the string rod 42 and the radiation test instrument 41 ensure the accuracy and comprehensiveness of radiation data collection, while reducing the absorption of radiation by itself.

[0050] The radiation testing instrument 41 is at a horizontal distance ( x , y ) as a relative position mark, so that the light radiation data measured by the radiation test instrument 41 during the day The relative position on the light receiving target surface 36 ( x , y ) are matched to the areas represented by Figure 2 As shown in the example, x It can represent the shortest distance between the string rod 42 and the left edge, y It can represent the distance from the radiation testing instrument 41 on the string rod 42 to the lower edge.

[0051] like Figure 2As shown, the test rack 3 is used to install the radiation test system 4 of the irradiance acquisition module 5, and adjust the inclination and height of the light receiving target surface 36. The test rack 3 includes a bracket sleeve 31, a bracket telescopic rod 32, a connecting coaxial 33, a central rotating shaft 34, a slide rail 35, an intelligent control lifting power device 37, an intelligent control rotation power device 38 and an intelligent control translation power device 39. The bracket sleeve 31 is a hollow cylinder, and the internal cavity accommodates the bracket telescopic rod 32, which is convenient for the intelligent control lifting power device 37 to adjust the height of the light receiving target surface 36. The structural design of the test rack 3 is reasonable, and the flexible adjustment of the height of the light receiving target surface 36 is realized through the bracket sleeve 31, the bracket telescopic rod 32, and the connecting coaxial 33 components.

[0052] The upper part of the support sleeve 31 is connected to the support telescopic rod 32 through the intelligent control lifting power device 37, and the lower part can be connected to the foundation of the frame 3 preset on the ground through bolts; The connecting coaxial 33 connects the two side brackets to ensure that the intelligent control lifting power device 37 controls the telescopic rods 32 of the two side brackets to rise and fall synchronously; The intelligent control lifting power device 37 includes a gear, a motor and an electronic control unit; the gear can be connected to a rack set along the length direction of the bracket telescopic rod 32; the motor drives the gear, and the gear drives the rack, so as to move the bracket telescopic rod 32 up and down to drive the central shaft 34, thereby changing the height of the light receiving target surface 36 from the ground H The electronic control unit receives instructions from the intelligent control module 6, which can be transmitted wirelessly or wired to remotely control and automatically manage the motor.

[0053] The central rotating shaft 34 is fixed on the center line of the light receiving target surface 36, and the two sides of the central rotating shaft 34 are connected to the bracket telescopic rod 32; the intelligent control rotating power device 38 includes a motor and an electronic control unit; the motor drives the central rotating shaft 34; the electronic control unit receives the instructions of the intelligent control module 6, which can be transmitted wirelessly or wired to remotely control and automatically manage the motor, which can improve the flexibility and accuracy of the test. The intelligent control rotating power device 38 controls the rotation of the light receiving target surface 36 via the central rotating shaft 34, thereby changing the inclination angle of the light receiving target surface 36 f ; The string rod 42 fixes multiple radiation testing instruments 41, and both ends of the string rod 42 are slidably connected to the slide rail 35 to ensure that the radiation testing system 4 moves laterally on the light-receiving target surface 36 under the control of the intelligent translational force device 39; the sliding connection between the two ends of the string rod 42 and the slide rail 35 can be achieved by setting a slider, wheels are set inside the slider, or transmission belts are set on both sides of the slider; the slider can be driven by a motor to achieve precise control and automated management of the translation process, thereby improving the comprehensiveness and efficiency of the test.

[0054] The intelligent control lifting power device 37, the intelligent control rotating power device 38 and the intelligent control translational power device 39 are respectively installed at the two ends of the connecting coaxial 33, the central rotating shaft 34 and the string rod 42; the application of the intelligent control lifting power device 37, the intelligent control rotating power device 38 and the intelligent control translational power device 39 improves the automation degree and accuracy of the test, realizes the rapid collection and synchronous storage of a large amount of data, and reduces the difficulty and error of manual operation.

[0055] The intelligent control module 6 changes the inclination angle of the light receiving target surface 36 by intelligently controlling the rotating power device 38 f , the height of the light receiving target surface 36 from the ground is changed by the intelligent control lifting power device 37 H , the position of the radiation test system 4 on the light receiving target surface 36 is changed by the intelligent control translation force device 39 x and y By using ( x , y ) as a relative position mark of the radiation test instrument 41, together with the inclination angle of the light receiving target surface 36 f and the height of the light receiving target surface 36 from the ground H , the light radiation data is matched with the relative position on the light receiving target surface 36, the inclination angle and the height of the light receiving target surface, thereby improving the accuracy and efficiency of data processing. This method can accurately reflect the irradiance conditions at different positions, providing strong support for subsequent analysis and optimization.

[0056] The test site 1 can be a safe and stable site with no risk of damage by wild animals, green plants, running water or falling rocks around it, so as to ensure the safety and stability of the test process and avoid interference and influence of external factors. The rack foundation 2 can be fixed to the foundation by screw piles; the length of the screw piles can be 1.5~10 m to improve the stability and wind resistance of the rack, ensuring the smooth progress of the test.

[0057] The intelligent control module 6 is used to receive control instructions, control the test frame 3 to adjust the inclination angle, height of the light receiving target surface 36 and the relative position of the radiation test system 4 on the light receiving target surface 36, and synchronize the inclination angle, height of the light receiving target surface and the relative position data of the radiation test system 4 on the light receiving target surface 36 after the control instructions are completed to the integrated operation module 7.

[0058] The integrated operation module 7 is used to input the site geographical location, ground condition parameters, and to generate the control instructions. It is also used to collect data obtained by the radiation data collector, and to process, analyze and store them.

[0059] During the actual measurement process, the weather data of the radiation test system 4 during the irradiance measurement process is synchronously collected; the geographical location of the test site 1, ground conditions, weather data, measurement time, irradiance measurement value, inclination angle, height of the light-receiving target surface 36 and relative position on the light-receiving target surface 36 are all entered into the analysis equipment.

[0060] In addition, the surface light radiation field test system of the embodiment of the present invention can also use multiple sets of Figure 2 The equipment shown is measured at the same time in different parameter ranges on the same test site 1. For example, the first set of equipment is tested f The first set of equipment tests 5°, 10°, 15°, 20°; the second set of equipment tests 20°, 25°, 30°, 35°; the third set of equipment tests 40°, 45°, 50°, 55°; the fourth set of equipment tests..., the simultaneous measurement strategy of different parameter ranges can also be used in relative positions ( x , y ) and ground clearance H superior.

[0061] Many embodiments and many applications beyond the examples provided will be apparent to those skilled in the art upon reading the above description. Therefore, the scope of the present teachings should not be determined with reference to the above description, but rather with reference to the preceding claims and the full scope of equivalents to which such claims are entitled. For the purpose of comprehensiveness, all articles and references, including disclosures of patent applications and publications, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein in the preceding claims is not intended to be a disclaimer of such subject matter, nor should it be considered that the applicants did not consider such subject matter to be part of the disclosed inventive subject matter.

[0062] The above content is a further detailed description of the present invention. It cannot be determined that the specific implementation methods of the present invention are limited to these. For ordinary technicians in the technical field to which the present invention belongs, without departing from the concept of the present invention, they can also make several simple deductions or substitutions, which should be regarded as belonging to the protection scope of the present invention determined by the submitted claims.

Claims

1. A method for testing surface light radiation on site, characterized in that: The following steps are involved: Run the radiation test system to collect irradiance, and record the measurement time, irradiance value, inclination angle and height of the target surface, and the relative position of the radiation test system on the target surface; Synchronously collect weather data during the irradiance measurement process of the radiation test system; Analyze the geographical location of the test site, ground conditions, the inclination angle and height of the target surface, and the mapping relationship between the relative position on the target surface and the irradiance; Taking the maximum annual cumulative radiation as the goal, obtain the best geographical location of the site, the best ground conditions, the best inclination angle and the best height of the target surface receiving light.

2. A method for testing surface light radiation on site according to claim 1, characterized in that: The inclination angle of the light receiving target surface φ It is a number of groups of values ​​with intervals of 2°~5° in the range of 0°~360°.

3. A method for testing surface light radiation on site according to claim 1, characterized in that: The height of the light receiving target surface H It is a number of groups of values ​​ranging from 0.5 to 5 m with intervals of 0.05 to 0.20 m.

4. The method for testing surface light radiation on site according to claim 1, characterized in that: The relative position of the radiation test system on the light receiving target surface is: the distance from the irradiance test point in the radiation test system to two adjacent edges of the light receiving target surface.

5. The method for testing surface light radiation on site according to claim 1, characterized in that: The test site is determined according to the geographical location and ground conditions; Geographic location is the longitude, latitude, and altitude of the test location; Ground conditions include site type, dryness, surface morphology, smoothness, ground inclination, and ground reflectivity; The site type is desert, mountain, grassland, snow, water or artificially modified ground; The degree of dryness is dry or moist; The surface morphology is flat or curved; The degree of smoothness is smooth or rough; The ground inclination is the slope angle of the test site; Ground reflectivity reflects the intensity of radiation reflected by the ground and depends on the properties, density and color of the rock and soil.

6. A surface light radiation field test system, characterized in that: It includes irradiance acquisition module, test rack, intelligent control module and integrated operation module; The irradiance acquisition module is arranged on the test rack, and includes a radiation test system and a radiation data collector, wherein the radiation data collector is used to obtain the irradiance information of the light receiving target surface in real time and convert it into an electrical signal; The test frame is used to physically support and controllably adjust the inclination and height of the light receiving target surface; The integrated operation module is used to generate the control instructions, collect the data acquired by the radiation data collector, and then process, analyze and store them; The intelligent control module is electrically connected to the integrated operation module. The intelligent control module is used to receive control instructions, control the test frame to adjust the inclination angle, height of the light-receiving target surface and the relative position of the radiation test system on the light-receiving target surface, and transmit the inclination angle, height of the light-receiving target surface and the relative position data of the radiation test system on the light-receiving target surface after the control instructions are completed to the integrated operation module.

7. A surface light radiation field testing system according to claim 6, characterized in that: The radiation testing system comprises a string rod arranged on the light receiving target surface and a plurality of radiation testing instruments arranged on the string rod at equal intervals.

8. A surface light radiation field testing system according to claim 7, characterized in that: The radiation testing instrument is one or more of a solar irradiance meter, a solar photometer, a radiometer, and a celestial sphere.

9. The surface light radiation field testing system according to claim 6, characterized in that: The test rack includes a support sleeve, a support telescopic rod, a connecting coaxial shaft, a central rotating shaft, a slide rail, an intelligent control lifting power device, an intelligent control rotating power device and an intelligent control translation power device; The upper part of the support sleeve is connected to the support telescopic rod through an intelligent control lifting power device, and the lower part can be connected to the rack foundation preset on the ground through bolts; Both sides of the connecting coaxial are fixedly connected to the bracket; The central rotating shaft is fixed to the center line position of the light receiving target surface, and both sides of the central rotating shaft are connected to the upper part of the telescopic rod of the bracket through the intelligent control rotating power device; The string rod is connected to the slide rail through an intelligent control translational power device.

10. A surface light radiation field testing system according to claim 9, characterized in that: The intelligent control module changes the inclination angle of the light receiving target surface by intelligently controlling the rotating power device. φ The intelligent control module changes the height of the light receiving target surface from the ground through the intelligent control lifting power equipment H The intelligent control module changes the position of the radiation test system on the target surface through the intelligent control translation power device. x and y .

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