Method and apparatus for determining irradiation amount of photovoltaic module, and device and storage medium

By calculating the annual solar radiation direction vector and irradiance loss coefficient, the installation location of photovoltaic modules can be accurately determined, solving the problem of incomplete shading analysis in existing technologies and realizing efficient layout and operation of photovoltaic power plants.

WO2026130075A1PCT designated stage Publication Date: 2026-06-25YUNENG TECH CO LTD
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
YUNENG TECH CO LTD
Filing Date
2025-11-28
Publication Date
2026-06-25

AI Technical Summary

Technical Problem

Existing technologies can only analyze shading conditions in the short term when analyzing the shading of photovoltaic modules. They cannot fully consider the complex shading changes caused by the changing position of the sun in different seasons throughout the year, resulting in unreasonable layout of photovoltaic modules.

Method used

By acquiring the geographical location information of the target area, calculating the solar radiation direction vector throughout the year, determining the projection point of the obstruction on the photovoltaic module, calculating the irradiance loss coefficient by combining the tilt angle and azimuth angle, obtaining the total irradiance using the meteorological data platform, and accurately calculating the comprehensive irradiance throughout the year to determine the installation location of the photovoltaic module.

Benefits of technology

It improves the accuracy of photovoltaic module irradiance calculation, avoids unreasonable photovoltaic module installation caused by short-term analysis, and optimizes the layout and operating efficiency of photovoltaic power plants.

✦ Generated by Eureka AI based on patent content.

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Abstract

A method and apparatus for determining the irradiation amount of a photovoltaic module, and a device and a storage medium, which relate to the technical field of photovoltaic power station design. The method comprises: calculating sunlight direction vectors; determining an obstacle in a mounting area of virtual photovoltaic modules, and determining a shadow area projected by the obstacle on a virtual photovoltaic module; determining a tilt angle of the virtual photovoltaic module relative to the ground and azimuth angles of the virtual photovoltaic module relative to the sunlight direction vectors, and using geographical location information, the tilt angle and the azimuth angles to determine an irradiation loss coefficient corresponding to the virtual photovoltaic module; and acquiring the total irradiation amount on a horizontal surface per unit of time, and on the basis of the total irradiation amount, the irradiation loss coefficient and the shadow area, determining the annual comprehensive irradiation amount of the virtual photovoltaic module, so as to determine, on the basis of the annual comprehensive irradiation amount, a mounting location of a target photovoltaic module. By using sunlight direction vectors, a shadow area and an irradiation loss coefficient, the annual irradiation amount of a photovoltaic module is obtained, and thus on the basis of the irradiation amount, a mounting location of a photovoltaic module can be determined.
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