WO2015041160A1 - Dispositif, procédé et programme d'estimation d'insolation - Google Patents

Dispositif, procédé et programme d'estimation d'insolation Download PDF

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Publication number
WO2015041160A1
WO2015041160A1 PCT/JP2014/074187 JP2014074187W WO2015041160A1 WO 2015041160 A1 WO2015041160 A1 WO 2015041160A1 JP 2014074187 W JP2014074187 W JP 2014074187W WO 2015041160 A1 WO2015041160 A1 WO 2015041160A1
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solar radiation
sky
radiation amount
sector
amount
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PCT/JP2014/074187
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English (en)
Japanese (ja)
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侑介 遠藤
博正 進
幹人 岩政
長谷川　義朗
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株式会社 東芝
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Publication of WO2015041160A1 publication Critical patent/WO2015041160A1/fr

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01W—METEOROLOGY
    • G01W1/00—Meteorology
    • G01W1/12—Sunshine duration recorders

Definitions

  • Embodiments of the present invention relate to a solar radiation amount estimating device, a solar radiation amount estimating method, and a solar radiation amount estimating program.
  • the amount of solar radiation is basic data for the design and evaluation of urban environments and PV plants, and it is important to accurately estimate this, so various models have been proposed.
  • any conventional model is ignored or only statistically considered by the sky factor, and no accurate estimation method has been proposed. This is because the sky map of surrounding features must be acquired, and the amount of calculation increases.
  • the ratio of reflected solar radiation to the total solar radiation is not large, but it is an important factor in the living environment and cannot be ignored under certain conditions. For example, the reflectance of snow light is 0.8. In heavy snowfall, it affects the total solar radiation by up to 10%.
  • the problems to be solved by the present invention include a solar radiation amount estimating device, a solar radiation amount estimating method, and a solar radiation amount estimating program capable of accurately and quickly estimating the amount of solar radiation in consideration of the influence of obstacles that prevent solar radiation. Is to provide.
  • the estimation information acquisition unit that acquires estimation information including the time for estimating the amount of solar radiation, the point, and the line-of-sight direction based on the point, and the surrounding 3D model at the point acquired by the estimation information acquisition unit
  • a 3D model acquisition unit that acquires a 3D model including surrounding features
  • a solar direction calculation unit that calculates the direction of the sun at the time and point based on the estimation information
  • the estimation information A sky map imaging unit that captures the entire sky in the line-of-sight direction and generates a two-dimensional sky map, and generates a plurality of sky sectors by dividing the entire sky into a plurality of sky sectors.
  • a solar radiation amount estimating apparatus including a total solar radiation amount calculating unit that calculates the total solar radiation amount by integrating the sky sectors.
  • the block diagram which actualized more the solar radiation amount estimation apparatus 1 of FIG. The figure which shows the cube map 21 which shows an example of an environment map.
  • (A) is the figure which arranged the virtual curved surface mirror in the three-dimensional coordinate space
  • (b) is the figure which arranged the sky figure in the two-dimensional coordinate space.
  • FIG. 1 is a block diagram showing a schematic configuration of a solar radiation amount estimating apparatus 1 according to the first embodiment.
  • the solar radiation amount estimation apparatus 1 in FIG. 1 includes an estimated information acquisition unit 2, a 3D model acquisition unit 3, a solar orientation calculation unit 4, a sky map imaging unit 5, a sector division unit 6, and a sector solar radiation amount calculation unit 7. And the total solar radiation amount calculation part 8 is provided.
  • the estimate information acquisition unit 2 acquires estimate information including the time at which the amount of solar radiation is estimated, the point, and the line-of-sight direction based on this point.
  • the specific method for obtaining the estimate information is not limited.
  • the estimate information acquisition unit 2 may acquire estimate information input by the user using an input device such as a keyboard, or may acquire estimate information from another communication device by wire or wireless.
  • the 3D model acquisition unit 3 is a 3D image data (hereinafter referred to as a 3D model) around a point included in the estimation information acquired by the estimation information acquisition unit 2, and acquires a 3D model including peripheral features.
  • the specific acquisition method of 3D model is not ask
  • the 3D model acquisition unit 3 may access a server or the like to acquire a 3D model around a point included in the estimation information, or may use a tool that generates a 3D model.
  • the periphery of the point may be a predetermined range centered on the point, or an arbitrarily settable range centered on the point.
  • a specific example is a range of a predetermined radius centered on the point.
  • the solar azimuth calculation unit 4 calculates the azimuth of the sun in the sky at the time and point of the estimation based on the above-described estimation information.
  • the position of the sun is calculated by numerical calculation.
  • the sky map imaging unit 5 captures the entire sky including the 3D model in the line-of-sight direction included in the estimation information, and generates a two-dimensional sky map. More specifically, the sky map imaging unit 5 captures a state in which sunlight radiated from the position of the sun calculated by the solar direction calculation unit 4 is reflected on the whole sky including the 3D model, and is two-dimensional. Generate a sky map. As will be described later, the sky map is two-dimensional image data including a plurality of pixels.
  • the sector dividing unit 6 divides the entire sky into a plurality of sky sectors, and associates each sky sector with each pixel of the sky map.
  • the sector solar radiation amount calculation unit 7 calculates the solar radiation amount from the sun located in the azimuth calculated by the solar direction calculation unit 4 for each pixel corresponding to each sky sector, and obstructs the solar radiation, that is, the surrounding area.
  • the amount of solar radiation is adjusted depending on whether or not an object exists.
  • the peripheral features are, for example, buildings or trees that shield or reflect sunlight.
  • the total solar radiation amount calculation unit 8 calculates the total solar radiation amount by adding the solar radiation amount of each pixel corresponding to each sky sector calculated by the sector solar radiation amount calculation unit 7 for all the sky sectors.
  • the solar radiation amount estimating apparatus 1 takes into consideration the time, point and line-of-sight direction, solar azimuth, and surrounding features for estimating the solar radiation amount for each sky sector. Since the solar radiation amount is calculated, the total solar radiation amount can be accurately estimated. In particular, according to the present embodiment, it is possible to calculate the amount of solar radiation taking into account that the solar radiation from the sun is shielded by surrounding features.
  • Solar radiation from the sun can be classified into four types: direct solar radiation, uniform solar radiation, scattered solar radiation and reflected solar radiation.
  • direct solar radiation is a direct solar radiation component that reaches directly from the sun and the surrounding high-luminance sky, and occupies about 50% of the total solar radiation.
  • Uniform solar radiation is a uniform solar radiation component in the whole sky, and occupies about 25% of the total solar radiation.
  • Scattered solar radiation is a solar radiation component due to Rayleigh scattering from the vicinity of the horizon, and is about 25% of the total solar radiation.
  • Reflected solar radiation is a solar radiation component due to the reflection of the surrounding feature surface that received sunlight, and its proportion of the total solar radiation amount is small. Therefore, even if the total solar radiation amount is calculated without taking reflected solar radiation into consideration, the accuracy is not significantly affected.
  • the solar radiation amount estimating apparatus 1 is characterized in that the total solar radiation amount is calculated in consideration of direct solar radiation, uniform solar radiation and scattered solar radiation, which have a large proportion of the total solar radiation amount. To do.
  • FIG. 2 is a block diagram in which the solar radiation amount estimating apparatus 1 of FIG.
  • the solar radiation amount estimating apparatus 1 in FIG. 2 includes an environment map generation unit 9, an individual solar radiation component mask generation unit 10, a gaze direction attenuation mask generation unit 11, and a virtual curved mirror arrangement unit 12. And a GPU control unit 13.
  • the environment map generation unit 9 generates an environment map that renders the surroundings of the point included in the estimate information acquired by the estimate information acquisition unit 2 when the gaze direction included in the estimate information is turned. To do.
  • the environment map includes information on surrounding features.
  • the environment map generation unit 9 may generate the environment map by any method as long as it can perform reflection mapping around a certain point.
  • FIG. 3 is a diagram showing a cube map 21 showing an example of an environment map.
  • the cube map 21 shown in FIG. 3 represents a periphery of a certain point as a cube composed of six planes that are different from each other by 90 degrees. For example, if you are facing east at a certain point, the top surface of the cube is in the celestial direction, the bottom surface is in the ground direction, and the remaining three sides are in the north, south, and west directions.
  • the individual solar radiation component mask generation unit 10 calculates and masks three types of solar radiation components of direct solar radiation, uniform solar radiation and scattered solar radiation for each pixel of the sky map corresponding to each sky sector on the sky including the 3D model. Generate data.
  • the mask data is texture data that can be processed by the GPU.
  • mask data is generated in which three types of solar radiation components in each sky sector are expressed as color values of corresponding pixels in the sky map composed of two-dimensional image data.
  • the individual solar radiation component mask generation unit 10 sets the solar radiation component of the sky sector to a specific value if there is any obstacle that prevents solar radiation in each sky sector, that is, surrounding features. That is, if there is an obstacle in at least a part of a certain sky sector, direct solar radiation, uniform solar radiation and scattered solar radiation are set to zero, and the solar radiation component is set to a specific value.
  • the sector solar radiation amount calculation unit 7 adds the mask data generated by the individual solar radiation component mask generation unit 10 and calculates the solar radiation amount of each sky sector. Detailed processing operations of the individual solar radiation component mask generation unit 10 will be described later.
  • the gaze direction attenuation mask generation unit 11 generates mask data for attenuating the amount of solar radiation according to the angle formed by the gaze direction included in the estimation information and the direction of each sky sector.
  • the line-of-sight attenuation mask generation unit 11 corresponds to the sky sector in the direction corresponding to the sky sector in the direction perpendicular to the white
  • the pixel corresponding to the sky sector in the direction orthogonal to the line-of-sight direction is black.
  • the pixel to be generated generates mask data consisting of a black and white gray image that becomes gray in proportion to the cosine of the angle formed with the line-of-sight direction.
  • the line-of-sight direction attenuation mask generation unit 11 is not an essential component and may be omitted.
  • the virtual curved mirror arrangement unit 12 arranges a virtual curved mirror, which is a data structure having a curved surface made of a mirror surface, at a point included in the estimated information, and in a line-of-sight direction included in the estimated information.
  • the sky map image capturing unit 5 captures an image of the virtual curved mirror placed by the virtual curved mirror arrangement unit 12 from above and generates a sky map.
  • FIG. 4 is a diagram showing how the sky map imaging unit 5 captures the sky reflected on the surface of the virtual curved mirror 20 from the direction indicated by the arrow.
  • FIG. 5 shows the sky generated by the sky map imaging unit 5 imaging. It is a figure which shows FIG. In the sky map 22 of FIG. 5, surrounding features (for example, buildings) in the 3D model are displayed in shades of black and white upon receiving sunlight. Black indicates the part that is shaded by sunlight, and white indicates the part that receives and reflects sunlight.
  • the solar radiation amount estimating apparatus 1 in FIG. 2 can be configured by either hardware or software. However, when configured by software, for example, the CPU and GPU (not shown) share the solar radiation amount estimating apparatus 1 in FIG. Processing can be executed.
  • the CPU performs each process of the 3D model acquisition unit 3, the estimation information calculation unit, the sun orientation calculation unit 4, the virtual curved mirror arrangement unit 12, the GPU control unit 13, and the total solar radiation amount calculation unit 8.
  • the GPU control unit 13 controls the operation of the GPU.
  • the GPU performs each process of the environment map generation unit 9, the individual solar radiation component mask generation unit 10, the sky map imaging unit 5, and the sector solar radiation amount calculation unit 7.
  • the GPU can perform parallel calculation processing, when it is necessary to repeatedly perform the same type of processing for a plurality of sky sectors, pixels, etc., the processing can be accelerated by the GPU. Since all processes of the environment map generation unit 9, the individual solar radiation component mask generation unit 10, the sky map imaging unit 5, and the sector solar radiation amount calculation unit 7 have to repeat the same type of processing for many sky sectors and pixels. By leaving these processes to the GPU, the burden on the CPU can be reduced and the processing speed can be increased.
  • the GPU has a pixel calculation function, and can perform image processing of each color of RGB in parallel on a pixel (pixel) basis. Therefore, three types of solar radiation (direct radiation, uniform, and scattering) components can be assigned to, for example, each color of RGB, and the processing of the individual solar radiation component mask generation unit 10 can be performed simultaneously in the GPU.
  • three types of solar radiation are allocated to the color information of each pixel of the sky map obtained by imaging the virtual curved mirror in which the surrounding features are captured together with sunlight with the sky map imaging unit 5.
  • the total amount of solar radiation is calculated by the pixel calculation processing of the GPU. In this case, whether or not there is an obstacle for each pixel of the sky map is considered, and if necessary, the amount of solar radiation is attenuated according to the angle between the line-of-sight direction and the direction of the sky sector.
  • FIG. 6A is a diagram in which virtual curved mirrors are arranged in a three-dimensional coordinate space
  • FIG. 6B is a diagram in which a sky diagram is arranged in a two-dimensional coordinate space.
  • the minute area in the sky map corresponding to the minute area of the virtual curved mirror is f ( ⁇ ) as the length from the center position of the sky map to this minute area, and ⁇ as the angle between the center position and both ends of the minute area.
  • f ( ⁇ ) d ⁇ one side of the minute area
  • f ( ⁇ ) d ⁇ one side of the minute area
  • f ( ⁇ ) d ⁇ one side of the minute area
  • f ( ⁇ ) d ⁇ the minute area
  • the minute area is represented by f ( ⁇ ) f ′ ( ⁇ ) d ⁇ d ⁇ .
  • g (x) be a curved surface shape in which the result of reflection onto the virtual curved mirror is an equal projection. That is, when light from an object in the direction of the elevation angle ⁇ is reflected at a point A that is f ( ⁇ ) away from the central convex portion of the curved surface in the horizontal direction, the curved surface g that goes in the camera direction (vertical direction) Find (x).
  • This curved surface is a rotational shape, and its cross-sectional shape is represented in FIG.
  • Expressions (5) and (6) use the 90 ° portion mirror (see FIG. 8) of the upper spherical surface of the curved mirror described above, so that the minute area in the sky map is always proportional to the area of the sky sector. It is shown that.
  • the sector solar radiation amount calculation unit 7 does not perform weighted integration but simply performs integration processing.
  • the amount of solar radiation can be calculated faster.
  • the sky map is a two-dimensional image and there is no distortion, the information amount of each pixel of the sky map can be used all over and the calculation accuracy can be improved.
  • the individual solar radiation component mask generation unit 10 represents the direct solar radiation component, the uniform solar radiation component, and the scattered solar radiation component as values of different colors (for example, red, green, and blue) for each sky sector. That is, the individual solar radiation component mask generation unit 10 represents each solar radiation component of each sky sector as a pixel image. Thereby, the pixel calculation function of GPU can be utilized efficiently.
  • expressing each solar radiation component as a value of a different color is an example for facilitating GPU processing, and is not an essential processing.
  • the values obtained by calculating the direct solar radiation component, the uniform solar radiation component and the scattered solar radiation component are referred to as the direct solar radiation amount, the uniform solar radiation amount and the scattered solar radiation amount, respectively.
  • a known calculation method may be used as a method for calculating the direct solar radiation amount, the uniform solar radiation amount, and the scattered solar radiation amount. Below, the example which calculates each solar radiation amount using the calculation method disclosed by the nonpatent literature 1 is demonstrated.
  • SConst is the solar energy flux outside the atmosphere at the average distance between the Earth and the Sun.
  • ⁇ is the transmittance of the atmosphere at the shortest distance (the direction of the zenith angle) (average value over the entire wavelength).
  • m ( ⁇ ) is the relative optical path length measured as a ratio of the zenith angle to the optical path length.
  • ⁇ is the solar zenith angle and Elev is the altitude (unit: meters).
  • SunDur ⁇ ⁇ is the time represented by the sky sector.
  • SunGap ⁇ ⁇ is the gap ratio of the solar orbit map sector.
  • AngIn ⁇ ⁇ is the incident angle between the center of gravity of the sky sector and the axis perpendicular to the surface.
  • Gz is the zenith angle of the surface.
  • the uniform solar radiation Uni is a constant value regardless of the zenith angle and azimuth angle of the sky sector.
  • the scattered solar radiation amount Dif ⁇ , ⁇ is calculated by the following equation (8).
  • Rglb is the global standard solar radiation.
  • Pdi is the ratio of scattering in the global standard solar radiation.
  • Dur is the analysis time interval.
  • SkyGap ⁇ ⁇ is the gap ratio of the sky sector (ratio of the whole sky visible region).
  • Weight ⁇ ⁇ is the ratio of scattered solar radiation from the specified sky sector to all sectors.
  • AngIn ⁇ ⁇ is the incident angle between the center of gravity of the sky sector and the incident surface.
  • ⁇ 1 and ⁇ 2 are the zenith angles at the boundaries of the sky sector.
  • Divazi is the number of divisions in the azimuth direction of the sky map.
  • the sector solar radiation amount calculation unit 7 multiplies each mask data generated by the individual solar radiation component mask generation unit 10 and the line-of-sight attenuation mask generation unit 11, and further by an obstacle in the sky map. If the solar radiation is shielded, the amount of solar radiation for each sky sector is calculated by attenuating that amount.
  • the amount of solar radiation Global ⁇ , ⁇ obtained by adding the direct, uniform and scattered solar radiation for each sky sector is expressed by the following equation (9).
  • the total solar radiation amount can be calculated as shown in the following equation (10) by summing the solar radiation amount Global ⁇ , ⁇ for each sky sector in equation (9).
  • k ⁇ , ⁇ is a ratio according to the area of the sky sector
  • S ⁇ , ⁇ is a parameter indicating whether the direction of the sky sector is shielded by an obstacle.
  • the corresponding parameter is multiplied by the above-described equation (10) for each sky sector.
  • FIG. 10 is a flowchart showing a processing procedure of the solar radiation amount estimating apparatus 1 according to the second embodiment.
  • the estimated information acquisition unit 2 acquires estimated information including the time, point, and line-of-sight direction for estimating the amount of solar radiation (step S1).
  • the 3D model acquisition unit 3 acquires a 3D model around the point included in the estimation information (step S2).
  • the solar azimuth calculation unit 4 calculates the azimuth of the sun in the sky at the time and point of the estimation based on the estimation information (step S3).
  • the environment map generation unit 9 generates an environment map facing the line-of-sight direction with the point included in the estimation information as the center (step S4).
  • the virtual curved mirror arrangement unit 12 generates a virtual curved mirror having a data structure having a curved surface composed of mirror surfaces (step S5).
  • the virtual curved mirror arrangement unit 12 performs a calculation for arranging the generated virtual curved mirror in the line-of-sight direction at a point included in the estimation information (step S6).
  • a rendering image of the environment map is reflected on the surface of the virtual curved mirror. This is equivalent to reflection of surrounding features of the virtual curved mirror and sunlight on the surface of the virtual curved mirror.
  • the sky map imaging unit 5 calculates the position of the camera for imaging the orthogonal projection of the virtual curved mirror arranged by the virtual curved mirror arrangement unit 12 (step S7), and the virtual curved mirror from the calculated camera position. To generate a sky map composed of two-dimensional image data (step S8).
  • the individual solar radiation component mask generation unit 10 generates direct, uniform and scattered solar radiation mask data for each pixel corresponding to each sky sector including the 3D model (step S9).
  • the line-of-sight attenuation mask generation unit 11 generates mask data for attenuating the amount of solar radiation according to the angle formed by the line-of-sight direction included in the estimation information and the direction of each sky sector (step S10). .
  • the sector dividing unit 6 divides the whole sky including the 3D model into a plurality of sky sectors, and associates each sky sector with each pixel of the two-dimensional sky map. Then, for each pixel of the sky map corresponding to each sky sector, mask data for direct, uniform, and diffuse solar radiation, mask data for attenuation of the line of sight, a ratio according to the area of the sky sector, and obstacles The solar radiation amount of each sky sector is calculated by multiplying by the parameter indicating whether or not the solar radiation is shielded (step S11).
  • step S12 it is determined whether or not the processing of steps S9 to S11 has been performed for all the pixels in the sky map (step S12), and the processing of steps S9 to S11 is repeated until the amount of solar radiation for all the pixels is calculated.
  • step S10 the process of step S10 is not necessary, and in the process of step S11, a parameter indicating whether or not solar radiation is shielded by an obstacle is provided. No need to multiply.
  • the sector solar radiation amount calculation unit 7 performs weighting. It is only necessary to perform the integration process instead of the integration process, and the solar radiation component can be calculated quickly. In addition, since the sky map after conversion is not distorted, the information amount of each pixel in the sky map can be used throughout, and the solar radiation distribution can be calculated with high accuracy.
  • the GPU processes multiple pixels in parallel in order to assign information on direct solar radiation, uniform solar radiation and scattered solar radiation to the color information of each pixel in the sky map composed of two-dimensional image data. This makes it easier to do this and allows you to quickly calculate the total solar radiation.
  • FIG. 11 is a block diagram showing a schematic configuration of the solar radiation amount estimating apparatus 1 according to the third embodiment.
  • the solar radiation amount estimation apparatus 1 of FIG. 11 includes a reflected solar radiation component mask generation unit 14 in addition to the configuration of FIG.
  • the reflected solar component mask generation unit 14 generates reflected solar component mask data from surrounding features for each pixel corresponding to each sky sector including the 3D model.
  • the sector solar radiation amount calculation unit 7 adds the mask data generated by the individual solar radiation component mask generation unit 10 and the mask data generated by the reflection solar radiation component mask generation unit 14 for each pixel corresponding to each sky sector.
  • the mask data of the solar radiation component of each pixel is calculated.
  • the individual solar radiation component mask generation unit 10 assigns three types of solar radiation components of direct, uniform, and scattered to different color information of each pixel, but the reflected solar radiation component mask generation unit 14 generates The mask data thus assigned is assigned to the transparency information of each pixel.
  • the mask data generated by the individual solar radiation component mask generation unit 10 and the mask data generated by the reflective solar radiation component mask generation unit 14 can be assigned as the color and transparency information of each pixel, and the pixels that the GPU is good at. Processing can be performed by calculation, and high-speed processing is possible.
  • FIG. 12 is a flowchart showing a processing procedure of the solar radiation amount estimating apparatus 1 according to the third embodiment.
  • the flowchart in FIG. 12 is obtained by adding step S14 between steps S8 and S9 in the flowchart in FIG.
  • the reflected solar radiation component mask generation unit 14 generates mask data related to reflected solar radiation for each pixel corresponding to each sky sector.
  • step S14 the same processing as step S9 and subsequent steps in FIG. 10 is performed. Note that the process of step S14 may be provided between steps S9 to S11.
  • the reflected solar component mask generation unit 14 is provided to calculate the amount of solar radiation taking into account the reflected solar radiation from the surrounding features.
  • the amount of solar radiation can be calculated in consideration of indirect light, and the calculation accuracy of solar radiation can be improved.
  • the solar radiation amount estimating apparatus 1 is applied to the installation of a photovoltaic power generation panel.
  • FIG. 13 is a block diagram showing a schematic configuration of the solar radiation amount estimating apparatus 1 according to the fourth embodiment.
  • the solar radiation amount estimation apparatus 1 in FIG. 13 is obtained by adding an optimum condition search unit 15 to the configuration in FIG.
  • the line-of-sight direction acquired by the estimated information acquisition unit 2 is regarded as at least one of the azimuth angle and the inclination angle of the photovoltaic power generation panel, and the total amount of solar radiation irradiated to the photovoltaic power generation panel is maximized.
  • the optimum condition search unit 15 searches for such an optimum condition.
  • the optimum condition search unit 15 changes the installation location, the azimuth angle, and the inclination angle of the photovoltaic power generation panel, and the optimum condition for maximizing the total amount of solar radiation applied to the photovoltaic power generation panel. Search for.
  • Finding the optimal azimuth and tilt angle of a photovoltaic panel is a global optimization problem, and a simple solution is to set all the azimuth and tilt angles of a photovoltaic panel to a certain unit (eg, It is conceivable to try exhaustively by changing every 10 degrees.
  • a hill climbing method or an annealing method may be used in which the current azimuth angle and inclination angle of the photovoltaic power generation panel are slightly shifted and the azimuth angle and inclination angle are changed in a direction in which the amount of solar radiation increases.
  • solar power generation panels are often mounted in units of strings in which a plurality of panels are connected in series, and the power generation amount of the string is determined by the panel with the lowest power generation amount in each string. Therefore, it is desirable that there is no variation in the amount of solar radiation applied to each panel in each string. Or based on the sky map imaged for every panel, you may make it put together the panel which has the same tendency as the time zone which receives sunlight, and the amount of solar radiation as the same string.
  • the solar radiation power generation panel installation location, azimuth angle, and inclination angle can be optimized using the solar radiation amount estimating apparatus 1, and the power generation efficiency of the solar power generation panel can be optimized. Can be improved.
  • the solar radiation amount estimating apparatus 1 a plurality of solar power generation panels that are most suitable for collecting as one string can be selected, and the power generation amount in each string can be increased.
  • At least a part of the solar radiation amount estimating apparatus 1 described in the above-described embodiment may be configured by hardware or software.
  • a program that realizes at least a part of the solar radiation amount estimating apparatus 1 may be stored in a recording medium such as a flexible disk or a CD-ROM, and read and executed by a computer.
  • the recording medium is not limited to a removable medium such as a magnetic disk or an optical disk, but may be a fixed recording medium such as a hard disk device or a memory.
  • a program that realizes at least a part of the solar radiation amount estimating apparatus 1 may be distributed via a communication line (including wireless communication) such as the Internet. Further, the program may be distributed in a state where the program is encrypted, modulated or compressed, and stored in a recording medium via a wired line such as the Internet or a wireless line.
  • a communication line including wireless communication
  • the program may be distributed in a state where the program is encrypted, modulated or compressed, and stored in a recording medium via a wired line such as the Internet or a wireless line.

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Abstract

Le problème de la présente invention est d'estimer précisément et rapidement une insolation tout en prenant en compte l'effet d' un obstacle bloquant la lumière du soleil. Le dispositif d'estimation d'insolation de la présente invention comprend : une unité d'acquisition d'informations d'estimation pour acquérir des informations d'estimation comprenant un temps auquel est estimée l'insolation, un emplacement et une direction de ligne de vision basée de l'emplacement ; une unité d'acquisition de modèle 3D pour acquérir un modèle 3D d'une périphérie de l'emplacement acquis, le modèle 3D comprenant un élément périphérique ; une unité de calcul d'azimut solaire pour calculer l'azimut du soleil à l'instant et à l'emplacement sur la base des informations d'estimation ; une unité d'imagerie de carte du ciel pour capturer une image de la totalité du ciel dans la direction de ligne de vision, comprise dans les informations d'estimation, et générer une carte du ciel bidimensionnelle ; une unité de division par secteurs pour diviser la totalité du ciel en une pluralité de divisions, générer une pluralité de secteurs de ciel et associer les secteurs de ciel à des pixels de la carte du ciel bidimensionnelle ; une unité de calcul d'insolation de secteur pour calculer l'insolation provenant du soleil positionné à l'azimut calculé par l'unité de calcul d'azimut solaire pour chacun des pixels associés aux secteurs de ciel, et ajuster l'insolation en fonction de la présence ou non d'un élément périphérique qui bloque la lumière du soleil, et une unité de calcul d'insolation totale pour intégrer, pour tous les secteurs de ciel, les insolations des pixels associés aux secteurs de ciel, calculés par l'unité de calcul d'insolation de secteur, et calculer une insolation totale.
PCT/JP2014/074187 2013-09-20 2014-09-12 Dispositif, procédé et programme d'estimation d'insolation WO2015041160A1 (fr)

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