A simulation method for solar energy resource development based on historical meteorological data

Abstract

The present invention relates to the field of solar energy technology, and in particular to a solar energy resource development simulation method based on historical meteorological data, including meteorological records, distribution calculations, typical year statistics, light simulation and resource measurement. Since the actual operation effect of photovoltaic components will be disturbed by changes in light intensity, and the light radiation parameters in the meteorological data weaken the accuracy of solar energy resource simulation, the present invention simulates the meteorological data of each day and each time period through a typical year model extracted from the historical meteorological data, and uses a guide rail arranged on the top of a shading room to irradiate the photovoltaic components on a positioning frame with light of varying angles, and uses a pneumatic bag on a circulation pipeline to adjust the meteorological parameters of temperature, humidity and wind speed in the shading room in real time, so that the meteorological changes are combined with the light intensity to act on the photovoltaic components in the shading room, so as to obtain higher-precision operation data of the photovoltaic components, thereby improving the accuracy of the solar energy development simulation method.

Description

Technical Field

[0001] The invention relates to the field of solar energy technology, and in particular to a solar energy resource development simulation method based on historical meteorological data. Background Art

[0002] Solar energy resources are very abundant. Large-scale development and utilization of solar energy resources are of great significance to the adjustment of energy structure, improvement of environmental quality and response to climate change. Scientific evaluation of solar energy resources is the basic premise for solar energy project construction. In the evaluation of solar energy resources, in addition to the solar radiation data measured by the meteorological department and calculated based on the percentage of sunshine, there are also a large amount of on-site measured data of solar power stations, as well as long-sequence gridded data obtained by satellite inversion or numerical simulation methods. These data are used in the evaluation of solar energy resources.

[0003] At present, the most widely used field of solar energy resources is photovoltaic components, and the construction of photovoltaic systems requires a certain cost. In the process of solar energy resource development, the solar energy resources are parameterized and modeled by combining historical meteorological data to evaluate the richness of solar energy resources and achieve the effect of simulating the development of solar energy resources. However, the actual operation effect of photovoltaic components will be affected by changes in light intensity. The light radiation parameters in the meteorological data reduce the accuracy of the simulation of solar energy resource utilization.

[0004] There are also some technical solutions for solar energy resource development simulation methods in the prior art. For example, a Chinese patent with application number 2014101639987 discloses a solar energy resource assessment method, which includes (1) establishing a regional solar energy resource map to obtain a solar energy irradiance data set S in the region; (2) constructing a measured data set Q; (3) constructing a data subset to calculate the weighting coefficient of each grid point; (4) correcting the irradiance data set SP for the next 24 hours generated by the numerical weather forecast model to establish a real-time distribution map of solar energy resources. This technical solution takes into account the screening of measured data, and can achieve the use of as few sites as possible to obtain a more accurate regional solar energy resource distribution, so as to save equipment installation and data storage resources, and comprehensively adopts linear correlation and weighted average to calculate the correction coefficient, which reduces the amount of calculation and improves the calculation speed, and combines the real-time monitoring data with the numerical weather forecast results to make the assessment result more accurate. However, this technical solution only simulates the solar energy resource assessment from the data perspective, lacks the problem of obtaining effective data through actual operation of solar energy utilization facilities, and weakens the accuracy of solar energy resource assessment and utilization.

[0005] In view of this, in order to overcome the above technical problems, the present invention proposes a solar energy resource development simulation method based on historical meteorological data, which adopts a special solar energy resource development simulation method to solve the above technical problems. Summary of the invention

[0006] In order to make up for the shortcomings of the prior art, the present invention proposes a solar energy resource development simulation method based on historical meteorological data. The meteorological data of each day and each time period are simulated by using a typical annual model extracted from the historical meteorological data. A guide rail is arranged on the top of the shading room to provide a moving space for the daylight source, so that the photovoltaic components on the positioning frame are illuminated by light of varying angles. The pneumatic bag on the circulation pipeline is used to adjust the meteorological parameters of temperature, humidity and wind speed in the shading room in real time, so that the meteorological changes combined with the light intensity act on the photovoltaic components in the shading room, and higher-precision operation data of the photovoltaic components are obtained, thereby improving the accuracy of the solar energy development simulation method based on historical meteorological data.

[0007] The present invention discloses a solar energy resource development simulation method based on historical meteorological data, and the steps of the method are as follows:

[0008] S1. Meteorological records: extract the data of air temperature, dew point temperature, wind speed and total radiation parameters of horizontal surface from the historical meteorological data, and record them respectively in the relationship between single data and time, among which the time variable is included in the cycle data with twelve months of each year;

[0009] S2, distribution calculation: calculate the single meteorological data in S1, count the single data of meteorological parameters as a group in the same month of each year, record the mean of its data distribution state, and based on the difference between the meteorological parameters and the mean data in the month, the month with the smallest difference is taken as the typical monthly data;

[0010] S3, typical year statistics: twelve representative typical months are selected from the data in S2 to form a typical year, and based on the typical month data in S2, the meteorological change data of each day and time period are selected, and then the illumination data of the typical year is used as the meteorological conditions for evaluating solar energy resources;

[0011] S4, illumination simulation: according to the solar energy resource data of a typical year in S3, the illumination parameters of the solar simulator are set so that the simulated sunlight can irradiate the installed photovoltaic modules, and at the same time, the operating parameters of the pneumatic package in the solar simulator are adjusted to simulate the temperature, humidity and wind speed conditions in the meteorological data;

[0012] S5, resource calculation: The operating efficiency of the photovoltaic modules is calculated through the solar simulator in S4, and the sunlight source is controlled to move along the guide rail to simulate the angle change process of the sun's rays relative to the photovoltaic modules during sunrise and sunset, so as to enhance the accuracy of the development and calculation of solar energy resources;

[0013] Among them, the solar simulator described in S4-S5 includes a shading chamber, a daylight source, a circulation pipeline and a controller; the shading chamber is a closed structure, and a guide rail is provided on the top of the shading chamber, and a sliding daylight source is installed on the guide rail; traction ropes are provided between the two ends of the daylight source and the side walls of the shading chamber, and electric rollers are also installed on the traction ropes at the side wall ends of the shading chamber; a positioning frame is also provided at the bottom of the shading chamber, and a photovoltaic module is installed on the positioning frame; the daylight source is direct light, and the daylight source is larger than the photovoltaic module and smaller than the top area of ​​the shading chamber; a circulation pipeline is also provided on the outside of the shading chamber, and the two ends of the circulation pipeline are respectively connected to the side walls at the two ends of the shading chamber; a pneumatic bag is also provided on the circulation pipeline, and an air compressor, a humidifier and a thermostat are installed in the pneumatic bag; the pneumatic bag changes the temperature, humidity and gas flow parameters inside the shading chamber through the circulation pipeline; the controller is used to adjust the operation of the solar simulator;

[0014] In the prior art, during the development of solar energy resources, parameterized modeling of solar energy resources is performed by combining historical meteorological data to evaluate the abundance of solar energy resources and achieve the effect of simulating the development of solar energy resources. However, the actual operation effect of photovoltaic modules will be affected by changes in light intensity, and the light radiation parameters in meteorological data reduce the accuracy of the simulation of solar energy resource utilization.

[0015] Therefore, the present invention irradiates the photovoltaic components through the solar simulator to simulate the horizontal plane radiation parameters recorded in the historical meteorological data, and adjusts the illumination intensity of the daylight source through the controller. The electric roller drives the traction rope to change the position of the daylight source on the guide rail, so that the daylight source simulates the actual change process of sunlight between the photovoltaic components, and produces an illumination effect with angle variation on the photovoltaic components installed in the positioning frame. At the same time, the humidifier and thermostat running in the pneumatic package adjust the parameters of the circulating gas in the sunshade room through the circulation pipeline under the action of the air compressor, so as to control the temperature, dew point and air flow rate in the sunshade room to be in the simulated historical meteorological conditions. The operating effect of the photovoltaic components under simulated lighting conditions is measured; the present invention utilizes a typical annual model extracted from historical meteorological data to simulate the meteorological data of each day and period, and provides a moving space for the daylight source by setting a guide rail on the top of the shading room, so that the photovoltaic components on the positioning frame are illuminated by light of varying angles, and utilizes the pneumatic bag on the circulation pipeline to adjust the meteorological parameters of temperature, humidity and wind speed in the shading room in real time, so that the meteorological changes combined with the light intensity act on the photovoltaic components in the shading room, and obtain higher-precision operating data of the photovoltaic components, thereby improving the accuracy of the solar energy development simulation method based on historical meteorological data.

[0016] Preferably, a protrusion is also provided in the middle of the guide rail, and a groove is also provided on the top of the sunshade chamber facing the protrusion; the length direction of the groove is perpendicular to the guide rail, and a driving oil cylinder is installed between the groove and the protrusion; through openings are provided on the side walls of the sunshade chamber at both ends of the guide rail extending out, and the guide rail and the through openings of the sunshade chamber are in sliding contact; the connecting line between the through openings is located in the middle of the groove, and the position of the through openings on the side walls of the sunshade chamber is in the circulation pipeline; the guide rail is bent and deformed under the action of the oil cylinder in the middle thereof; when in use, the daylight source moves from one end to the other end on the guide rail after being started to simulate the angle change of sunlight during sunrise and sunset; the protrusions provided on the guide rail are used to make it move in the groove on the top of the sunshade chamber. The guide rail moves in the groove, driving the end of the guide rail to slip in the opening, and then causing the guide rail to bend and deform, so that the daylight source installed on the guide rail is driven by the traction rope and is on an arc-shaped running trajectory, so as to simulate the changing trajectory of sunlight at sunrise and sunset in different seasons, and use the daylight source to run the cylinder before starting. As the daylight source moves along the guide rail under the action of the traction rope, the position of the protrusion in the convex groove is changed, and the curvature of the guide rail is adjusted in real time to simulate the azimuth angle of sunlight at sunrise and sunset in different latitudes, thereby enhancing the accuracy of the operating effect of photovoltaic modules under the illumination parameter simulation, thereby improving the application effect of the solar energy development simulation method based on historical meteorological data.

[0017] Preferably, the guide rail is also provided with a slide, which is rotatably connected to the top of the daylight source; the slide is also provided with a roller for clamping the guide rail, and the end of the roller is connected to the slide by a spring support; when in use, the curvature of the guide rail will change during the bending deformation process; the roller arranged on the slide moves along the guide rail, and the spring between the slide and the roller is used to transmit the differentiated expansion and contraction of the springs on both sides of the guide rail after the curvature of the guide rail changes, so as to maintain the contact state between the roller and the guide rail, and then stabilize the movement process of the slide on the guide rail with changing curvature, so as to ensure the arc-shaped movement trajectory of the daylight source in the sunshade room, thereby improving the application effect of the solar energy development simulation method based on historical meteorological data.

[0018] Preferably, a pulley is also installed at the end of the guide rail, and the traction rope on the guide rail is connected to the electric drum via the pulley; when in use, the guide rail will change the extension amount of its end in the through opening during the bending and deformation process; the movement path of the traction rope is limited by the pulley arranged at the end of the guide rail, and in the process of the guide rail curvature changing, the end of the guide rail correspondingly changes its extension amount outside the sunshade room, and then the tension state of the traction rope between the daylight source and the electric drum is adjusted by the pulley at its end, so as to maintain the movement accuracy of the electric drum in pulling the daylight source, thereby improving the application effect of the solar energy development simulation method based on historical meteorological data.

[0019] Preferably, an electric push rod is also provided at the bottom of the shading chamber, and the top of the electric push rod is hingedly connected to the positioning frame, and the electric push rod is used to adjust the inclination angle of the positioning frame; when in use, photovoltaic components installed in different regions are often adjusted according to the latitude of the region in order to obtain better lighting effects; the electric push rod arranged in the shading chamber is used to control the positioning frame hinged on the top to adjust the photovoltaic components performing simulated operation to different inclination states, and cooperate with the daylight source on the top of the shading chamber to simulate the lighting parameters received by the photovoltaic components in regions with different latitudes, thereby improving the applicability of the solar energy development simulation method based on historical meteorological data.

[0020] Preferably, a mesh plate is further provided on the side wall of the shading room, and the mesh plate is located on the side wall of the shading room where the circulation pipeline is located; an air ring is also provided on the edge of the mesh plate, and the two ends of the air ring are respectively connected to the circulation pipeline and the mesh plate; the air ring is provided with an opening at the end of the circulation pipeline, and a slit is provided at the end of the mesh plate; when in use, the air flow supplied by the circulation pipeline to the shading room needs to simulate the air flow in nature, in order to ensure the influence of air humidity on light propagation; the local high-speed airflow generated in the circulation pipeline is slowed down by the mesh plate arranged in the shading room, and the air ring arranged at the edge of the mesh plate The ring is connected with the circulation pipeline, so that the air flow in the circulation pipeline enters along the open port of the wind ring and flows out from the slit end, which increases the flow velocity in the wind ring and reduces the pressure. The resulting pressure difference increases the amount of air entering the shading room from the circulation pipeline, and uses the air compressor in the pneumatic bag as the power source for air circulation, avoiding the cutting of the air flow by the fan blades, providing a stable airflow to the shading room, which is closer to the effect of natural wind, and thus maintaining the authenticity of the interference of air on light parameters, thereby improving the accuracy of the solar energy development simulation method based on historical meteorological data.

[0021] The beneficial effects of the present invention are as follows:

[0022] 1. The present invention simulates the meteorological data of each day and each time period by extracting a typical year model from historical meteorological data. The guide rails arranged on the top of the shading room provide a moving space for the daylight source, so that the photovoltaic components on the positioning frame are illuminated by light with varying angles, thereby obtaining higher-precision operating data of the photovoltaic components and improving the accuracy of the solar energy development simulation method based on historical meteorological data.

[0023] 2. The present invention arranges a protrusion on the guide rail to make the guide rail bend and deform, so that the daylight source is on an arc-shaped running trajectory, simulating the trajectory change of sunlight; the differentiated expansion and contraction amount of the spring arranged between the slide and the roller stabilizes the arc-shaped moving trajectory of the daylight source in the shade room; the pulley arranged at the end of the guide rail adjusts the tension state of the traction rope between the daylight source and the electric drum during the change of the guide rail curvature, thereby maintaining the movement accuracy of the electric drum pulling the daylight source.

[0024] 3. The present invention simulates the lighting parameters that photovoltaic modules are exposed to in different latitudes by means of an electric push rod arranged in the shading chamber; the wind ring arranged at the edge of the mesh plate is connected to the circulation pipeline, and the pressure difference generated increases the air volume entering the shading chamber through the circulation pipeline, and utilizes the air compressor in the pneumatic bag to avoid cutting the airflow, thereby providing the shading chamber with a stable airflow close to natural wind, thereby maintaining the authenticity of the interference of air on the lighting parameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention is further described below in conjunction with the accompanying drawings and implementation modes.

[0026] Figure 1 It is a flow chart of the solar energy resource development simulation method based on historical meteorological data in the present invention;

[0027] Figure 2 is a three-dimensional diagram of a solar simulator in the present invention;

[0028] Figure 3 is a three-dimensional diagram of the internal components of the solar simulator of the present invention;

[0029] Figure 4 yes Figure 2 A partial enlarged view of the middle A;

[0030] Figure 5 yes Figure 3 A partial enlarged view of point B in the middle;

[0031] Figure 6 yes Figure 3 A partial enlarged view of point C in the middle;

[0032] In the figure: shading chamber 1, electric roller 11, positioning frame 12, electric push rod 121, groove 13, cylinder 131, through port 14, mesh plate 15, air ring 16, opening 161, slit 162, daylight source 2, traction rope 21, circulation pipeline 3, pneumatic bag 31, guide rail 4, protrusion 41, slide 42, roller 421, spring 422, pulley 43. DETAILED DESCRIPTION

[0033] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0034] like Figures 1 to 6 As shown, the solar energy resource development simulation method based on historical meteorological data described in the present invention has the following steps:

[0035] S1. Meteorological records: extract the data of air temperature, dew point temperature, wind speed and total radiation parameters of horizontal surface from the historical meteorological data, and record them respectively in the relationship between single data and time, among which the time variable is included in the cycle data with twelve months of each year;

[0036] S2, distribution calculation: calculate the single meteorological data in S1, count the single data of meteorological parameters as a group in the same month of each year, record the mean of its data distribution state, and based on the difference between the meteorological parameters and the mean data in the month, the month with the smallest difference is taken as the typical monthly data;

[0037] S3, typical year statistics: twelve representative typical months are selected from the data in S2 to form a typical year, and based on the typical month data in S2, the meteorological change data of each day and time period are selected, and then the illumination data of the typical year is used as the meteorological conditions for evaluating solar energy resources;

[0038] S4, illumination simulation: according to the solar energy resource data of a typical year in S3, the illumination parameters of the solar simulator are set so that the simulated sunlight can irradiate the installed photovoltaic components, and at the same time, the operating parameters of the pneumatic package 31 in the solar simulator are adjusted to simulate the temperature, humidity and wind speed conditions in the meteorological data;

[0039] S5, resource calculation: the operation efficiency of the photovoltaic module is calculated by the solar simulator in S4, and the sunlight source 2 is controlled to move along the guide rail 4 to simulate the angle change process of the sun's rays relative to the photovoltaic module during sunrise and sunset, so as to enhance the accuracy of the development and calculation of solar energy resources;

[0040] Among them, the solar simulator described in S4-S5 includes a shading chamber 1, a daylight source 2, a circulation pipeline 3 and a controller; the shading chamber 1 is a closed structure, and a guide rail 4 is provided on the top of the shading chamber 1, and a sliding daylight source 2 is installed on the guide rail 4; a traction rope 21 is provided between the two ends of the daylight source 2 and the side wall of the shading chamber 1, and an electric roller 11 is also installed on the side wall end of the traction rope 21; a positioning frame 12 is also provided at the bottom of the shading chamber 1, and a photovoltaic module is installed on the positioning frame 12; the daylight source 2 is provided on the top of the shading chamber 1, and the traction rope 21 is provided on the bottom of the shading chamber 1. The light source 2 is direct light, and the daylight source 2 is larger than the photovoltaic module and smaller than the top area of ​​the shading chamber 1; a circulation pipeline 3 is also provided on the outside of the shading chamber 1, and the two ends of the circulation pipeline 3 are respectively connected to the side walls at the two ends of the shading chamber 1; a pneumatic bag 31 is also provided on the circulation pipeline 3, and an air compressor, a humidifier and a thermostat are installed in the pneumatic bag 31; the pneumatic bag 31 changes the temperature, humidity and gas flow parameters inside the shading chamber 1 through the circulation pipeline 3; the controller is used to adjust the operation of the solar simulator;

[0041] In the prior art, during the development of solar energy resources, parameterized modeling of solar energy resources is performed by combining historical meteorological data to evaluate the abundance of solar energy resources and achieve the effect of simulating the development of solar energy resources. However, the actual operation effect of photovoltaic modules will be affected by changes in light intensity, and the light radiation parameters in meteorological data reduce the accuracy of the simulation of solar energy resource utilization.

[0042] Therefore, the present invention irradiates the photovoltaic components through the solar simulator to simulate the horizontal plane radiation parameters recorded in the historical meteorological data, and adjusts the light intensity of the daylight source 2 through the controller. The electric roller 11 drives the traction rope 21 to change the position of the daylight source 2 on the guide rail 4, so that the daylight source 2 simulates the actual change process of sunlight on the photovoltaic components, and produces an angle-changing lighting effect on the photovoltaic components installed in the positioning frame 12. At the same time, the humidifier and thermostat running in the pneumatic package 31 adjust the parameters of the circulating gas in the shading chamber 1 through the circulation pipeline 3 under the action of the air compressor, so as to control the temperature, dew point and air flow rate in the shading chamber 1 to be in the simulated historical meteorological conditions. Conditions, the operating effect of the photovoltaic components under simulated lighting conditions is measured; the present invention utilizes a typical year model extracted from historical meteorological data to simulate the meteorological data of each day and each period, and provides a moving space for the daylight source 2 by setting the guide rail 4 on the top of the shading room 1, so that the photovoltaic components on the positioning frame 12 are illuminated by light with changing angles, and uses the pneumatic bag 31 on the circulation pipeline 3 to adjust the meteorological parameters of temperature, humidity and wind speed in the shading room 1 in real time, so that the meteorological changes combined with the light intensity act on the photovoltaic components in the shading room 1, and obtain higher-precision operating data of the photovoltaic components, thereby improving the accuracy of the solar energy development simulation method based on historical meteorological data.

[0043] As an embodiment of the present invention, a protrusion 41 is further provided in the middle of the guide rail 4, and a groove 13 is further provided at the top of the shading chamber 1 facing the protrusion 41; the length direction of the groove 13 is perpendicular to the guide rail 4, and a driving cylinder 131 is installed between the groove 13 and the protrusion 41; through openings 14 are provided on the side walls of the shading chamber 1 at both ends of the guide rail 4, and the guide rail 4 is in sliding contact with the through openings 14 of the shading chamber 1; the connecting line between the through openings 14 is located in the middle of the groove 13, and the position of the through opening 14 on the side wall of the shading chamber 1 is in the circulation pipeline 3; the guide rail 4 is bent and deformed under the action of the cylinder 131 in the middle thereof; when in use, the daylight source 2 moves from one end to the other end on the guide rail 4 after being started to simulate the angle change of sunlight during sunrise and sunset; by setting on the guide rail 4 The protrusion 41 is moved in the groove 13 at the top of the sunshade chamber 1, driving the end of the guide rail 4 to slide in the opening 14, and then causing the guide rail 4 to bend and deform, so that the daylight source 2 installed on the guide rail 4 is in an arc-shaped running trajectory driven by the traction rope 21, so as to simulate the changing trajectory of sunlight at sunrise and sunset in different seasons, and the daylight source 2 is used to operate the cylinder 131 before starting. As the daylight source 2 moves along the guide rail 4 under the action of the traction rope 21, the position of the protrusion 41 in the protruding groove is changed, and the curvature of the guide rail 4 is adjusted in real time to simulate the azimuth angle of sunlight at sunrise and sunset in different latitudes, thereby enhancing the accuracy of the operating effect of the photovoltaic module under the illumination parameter simulation, thereby improving the application effect of the solar energy development simulation method based on historical meteorological data.

[0044] As an embodiment of the present invention, a slide 42 is further provided on the guide rail 4, and the slide 42 is rotatably connected to the top of the daylight source 2; a roller 421 for clamping the guide rail 4 is also provided on the slide 42, and the end of the roller 421 is connected to the slide 42 through a spring 422 support; when in use, the curvature of the guide rail 4 will change during the bending deformation process; the roller 421 provided on the slide 42 is moved along the guide rail 4, and the spring 422 between the slide 42 and the roller 421 is utilized, and after the curvature of the guide rail 4 changes, the differentiated expansion and contraction amount of the spring 422 on both sides of the guide rail 4 is transmitted to maintain the contact state between the roller 421 and the guide rail 4, and then stabilize the movement process of the slide 42 on the guide rail 4 with changing curvature, so as to ensure the arc-shaped movement trajectory of the daylight source 2 in the shading chamber 1, thereby improving the application effect of the solar energy development simulation method based on historical meteorological data.

[0045] As an embodiment of the present invention, a pulley 43 is also installed at the end of the guide rail 4, and the traction rope 21 on the guide rail 4 is connected to the electric drum 11 through the pulley 43; when in use, the guide rail 4 will change the extension amount of its end in the opening 14 during the bending deformation process; the pulley 43 arranged at the end of the guide rail 4 is used to limit the moving path of the traction rope 21, and in the process of the curvature of the guide rail 4 changing, the end of the guide rail 4 correspondingly changes its extension amount outside the sunshade room 1, and then the pulley 43 at its end is used to adjust the tension state of the traction rope 21 between the daylight source 2 and the electric drum 11, so as to maintain the movement accuracy of the electric drum 11 pulling the daylight source 2, thereby improving the application effect of the solar energy development simulation method based on historical meteorological data.

[0046] As an embodiment of the present invention, an electric push rod 121 is further provided at the bottom of the shading chamber 1, and the top of the electric push rod 121 is hingedly connected to the positioning frame 12, and the electric push rod 121 is used to adjust the inclination angle of the positioning frame 12; when in use, photovoltaic components installed in different regions are often adjusted according to the latitude of the region in order to obtain better lighting effects; through the electric push rod 121 arranged in the shading chamber 1, the positioning frame 12 hinged on the top is controlled to adjust the photovoltaic components performing simulated operation to different inclination states, and cooperate with the daylight source 2 on the top of the shading chamber 1 to simulate the lighting parameters received by the photovoltaic components in regions with different latitudes, thereby improving the applicability of the solar energy development simulation method based on historical meteorological data.

[0047] As an embodiment of the present invention, a mesh plate 15 is further provided on the side wall of the shading chamber 1, and the mesh plate 15 is located on the side wall of the shading chamber 1 where the circulation pipeline 3 is located; an air ring 16 is also provided on the edge of the mesh plate 15, and the two ends of the air ring 16 are respectively connected to the circulation pipeline 3 and the mesh plate 15; the air ring 16 has an opening 161 at the end of the circulation pipeline 3, and a slit 162 at the end of the mesh plate 15; when in use, the air flow supplied by the circulation pipeline 3 to the shading chamber 1 needs to simulate the air flow in nature, in order to ensure the influence of air humidity on light propagation; by setting the mesh plate 15 in the shading chamber 1, the local high-speed air generated in the circulation pipeline 3 is slowed down. The air flow, the wind ring 16 arranged on the edge of the mesh plate 15 is connected with the circulation pipeline 3, so that the air flow in the circulation pipeline 3 enters along the open port 161 of the wind ring 16 and flows out from the slit 162, thereby increasing the flow velocity at the wind ring 16 and reducing the pressure. The generated pressure difference increases the amount of air from the circulation pipeline 3 entering the sunshade chamber 1, and utilizes the air compressor in the pneumatic bag 31 as the power source for air circulation, thereby avoiding the cutting of the air flow by the fan blades, providing a stable airflow into the sunshade chamber 1, which is closer to the effect of natural wind, and thus maintaining the authenticity of the interference of air on light parameters, thereby improving the accuracy of the solar energy development simulation method based on historical meteorological data.

[0048] When in use, the photovoltaic components are irradiated by the solar simulator, simulating the horizontal plane radiation parameters recorded in the historical meteorological data. The illumination intensity of the daylight source 2 is adjusted by the controller. The electric roller 11 drives the traction rope 21 to change the position of the daylight source 2 on the guide rail 4, so that the daylight source 2 simulates the actual change process of the sunlight between the photovoltaic components, and produces an angle-changing illumination effect on the photovoltaic components installed in the positioning frame 12. At the same time, the humidifier and the thermostat running in the pneumatic package 31 adjust the parameters of the circulating gas in the shading chamber 1 through the circulation pipeline 3 under the action of the air compressor, and control the temperature in the shading chamber 1, The dew point and air velocity are under simulated historical meteorological conditions, and the operating effect of the photovoltaic module under simulated lighting conditions is measured; the protrusion 41 set on the guide rail 4 is moved in the groove 13 at the top of the shading chamber 1, driving the end of the guide rail 4 to slip in the through opening 14, and then causing the guide rail 4 to bend and deform, so that the daylight source 2 installed on the guide rail 4 is in an arc-shaped running trajectory driven by the traction rope 21, so as to simulate the changes in the trajectory of sunrise and sunset of sunlight in different seasons, and use the daylight source 2 to operate the cylinder 131 before starting, as the daylight source 2 moves along the guide rail 4 under the action of the traction rope 21 , changing the position of the protrusion 41 in the protruding groove, adjusting the curvature of the guide rail 4 in real time, simulating the azimuth angle of sunlight at sunrise and sunset in different latitudes; the roller 421 arranged on the slide 42 moves along the guide rail 4, and uses the spring 422 between the slide 42 and the roller 421. After the curvature of the guide rail 4 changes, the differential expansion and contraction amount of the spring 422 on both sides of the guide rail 4 is transmitted to maintain the contact state between the roller 421 and the guide rail 4, and then stabilizes the movement process of the slide 42 on the guide rail 4 with changing curvature, so as to ensure the arc-shaped movement trajectory of the daylight source 2 in the shading room 1; the pulley 43 arranged at the end of the guide rail 4 , limiting the moving path of the traction rope 21. In the process of the curvature of the guide rail 4 changing, the end of the guide rail 4 changes its extension amount outside the sunshade room 1 accordingly, and then adjusts the tension state of the traction rope 21 between the daylight source 2 and the electric roller 11 through the pulley 43 at its end, so as to maintain the moving accuracy of the electric roller 11 pulling the daylight source 2; the electric push rod 121 arranged in the sunshade room 1 controls the positioning frame 12 hinged on its top to adjust the photovoltaic module in simulated operation to different inclination states, and cooperates with the daylight source 2 on the top of the sunshade room 1 to simulate the light parameters received by the photovoltaic module in different latitudes;The mesh plate 15 arranged in the shading room 1 slows down the local high-speed airflow generated in the circulation pipeline 3. The wind ring 16 arranged at the edge of the mesh plate 15 is connected to the circulation pipeline 3, so that the airflow in the circulation pipeline 3 enters along the open opening 161 of the wind ring 16 and flows out from the slit 162 end, increasing the flow rate at the wind ring 16 and reducing the pressure. The pressure difference generated increases the air volume of the circulation pipeline 3 entering the shading room 1, and uses the air compressor in the pneumatic bag 31 as the power source for air circulation, avoiding the fan blades from cutting the airflow, providing a stable airflow into the shading room 1, which is closer to the effect of natural wind, thereby maintaining the authenticity of the air interference with the light parameters. ;

[0049] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A solar energy resource development simulation method based on historical meteorological data, characterized in that: The steps of this method are as follows: S1. Meteorological records: extract the data of air temperature, dew point temperature, wind speed and total radiation parameters of horizontal surface from the historical meteorological data, and record them respectively in the relationship between single data and time, among which the time variable is included in the cycle data with twelve months of each year; S2, distribution calculation: calculate the single meteorological data in S1, count the single data of meteorological parameters as a group in the same month of each year, record the mean of its data distribution state, and based on the difference between the meteorological parameters and the mean data in the month, the month with the smallest difference is taken as the typical monthly data; S3, typical year statistics: twelve representative typical months are selected from the data in S2 to form a typical year, and based on the typical month data in S2, the meteorological change data of each day and time period are selected, and then the illumination data of the typical year is used as the meteorological conditions for evaluating solar energy resources; S4, illumination simulation: according to the solar energy resource data of a typical year in S3, the illumination parameters of the solar simulator are set so that the simulated sunlight shines on the installed photovoltaic components, and at the same time, the operating parameters of the pneumatic package (31) in the solar simulator are adjusted to simulate the temperature, humidity and wind speed conditions in the meteorological data; S5, resource calculation: the operating efficiency of the photovoltaic module is calculated by the solar simulator in S4, and the sunlight source (2) therein is controlled to move along the guide rail (4) to simulate the angle change process of the sun's rays relative to the photovoltaic module during sunrise and sunset, thereby enhancing the accuracy of the development calculation of solar energy resources; The solar simulator described in S4-S5 comprises a shading chamber (1), a daylight source (2), a circulation pipeline (3) and a controller; the shading chamber (1) is a closed structure, a guide rail (4) is provided on the top of the shading chamber (1), and a sliding daylight source (2) is installed on the guide rail (4); a traction rope (21) is provided between the two ends of the daylight source (2) and the side wall of the shading chamber (1), and an electric roller (11) is also installed on the traction rope (21) at the side wall end of the shading chamber (1); a positioning frame (12) is also provided at the bottom of the shading chamber (1), and a photovoltaic module is installed on the positioning frame (12). ; The daylight source (2) is direct light, and the daylight source (2) is larger than the photovoltaic module and smaller than the top area of ​​the shading chamber (1); a circulation pipeline (3) is also provided on the outside of the shading chamber (1), and the two ends of the circulation pipeline (3) are respectively connected to the side walls at the two ends of the shading chamber (1); the circulation pipeline (3) is also provided with a pneumatic bag (31), and the pneumatic bag (31) is installed with an air compressor, a humidifier and a thermostat; the pneumatic bag (31) changes the temperature, humidity and gas flow parameters inside the shading chamber (1) through the circulation pipeline (3); the controller is used to adjust the operation of the solar simulator; A protrusion (41) is also provided in the middle of the guide rail (4), and a groove (13) is also provided at the top of the light-shielding chamber (1) facing the protrusion (41); the length direction of the groove (13) is perpendicular to the guide rail (4), and a driving oil cylinder (131) is installed between the groove (13) and the protrusion (41); openings (14) are provided on the side walls of the light-shielding chamber (1) at both ends of the guide rail (4), and the guide rail (4) and the openings (14) of the light-shielding chamber (1) are in sliding contact; the connecting line between the openings (14) is located in the middle of the groove (13), and the position of the opening (14) on the side wall of the light-shielding chamber (1) is in the circulation pipeline (3); the guide rail (4) is bent and deformed under the action of the oil cylinder (131) in the middle thereof; The guide rail (4) is also provided with a slide (42), and the slide (42) is rotatably connected to the top of the daylight source (2); the slide (42) is also provided with a roller (421) for clamping the guide rail (4), and the end of the roller (421) is connected to the slide (42) through a spring (422). A pulley (43) is also installed at the end of the guide rail (4), and the traction rope (21) on the guide rail (4) is connected to the electric drum (11) through the pulley (43); The bottom of the light shielding chamber (1) is also provided with an electric push rod (121), the top of the electric push rod (121) is hingedly connected to the positioning frame (12), and the electric push rod (121) is used to adjust the inclination angle of the positioning frame (12); A mesh plate (15) is also provided on the side wall of the shading chamber (1), and the mesh plate (15) is located on the side wall of the shading chamber (1) where the circulation pipeline (3) is located; an air ring (16) is also provided on the edge of the mesh plate (15), and the two ends of the air ring (16) are respectively connected to the circulation pipeline (3) and the mesh plate (15); the air ring (16) is provided with an opening (161) at the end of the circulation pipeline (3), and a slit (162) is provided at the end of the mesh plate (15).

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