一种光伏区蒸散发反演方法及系统

By combining the photovoltaic power generation efficiency model and the SEBS model, the energy parameters in the remote sensing data were corrected, the systematic error in the evapotranspiration inversion of the photovoltaic area was solved, and accurate inversion on a large scale and over a long period of time was achieved, thus assessing the ecological impact of photovoltaic construction.

CN121602907BActive Publication Date: 2026-07-17CHINA AGRI UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA AGRI UNIV
Filing Date
2025-12-02
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies for evapotranspiration in photovoltaic areas suffer from high costs and long cycles due to reliance on ground-based observations, making it difficult to achieve large-scale and long-term monitoring. Furthermore, the remote sensing-based inversion models do not consider systematic errors caused by the shading effect of photovoltaic panels.

Method used

By combining the photovoltaic power generation efficiency model and the SEBS model, and by obtaining the area ratio of non-photovoltaic panel areas and surface temperature, the instantaneous net radiation, soil heat flux and atmospheric sensible heat in the remote sensing image data are corrected, and the evaporation ratio is calculated to invert daily evapotranspiration.

Benefits of technology

Under the complex underlying surface conditions of photovoltaic areas, systematic errors were reduced, and accurate inversion of large-scale and long-term evapotranspiration processes was achieved, providing a scientific assessment of the impact of photovoltaic construction on local hydrological cycles and the ecological environment.

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Abstract

本发明公开了一种光伏区蒸散发反演方法及系统,涉及光伏发电技术领域,包括以下步骤:通过非光伏板区面积占比和目标光伏区的地表温度获取光伏发电效率;通过非光伏板区面积占比与光伏发电效率修正SEBS模型中的瞬时净辐射,通过修正的光伏区瞬时净辐射与冠层覆盖率修正SEBS模型中的瞬时土壤热通量;通过修正的土壤热通量和光伏区瞬时净辐射修正SEBS模型中的干极和湿极情况下的大气感热;基于修正的光伏区瞬时净辐射、土壤热通量以及干极和湿极情况下的大气感热与光伏区瞬时净辐射计算日蒸散发。本发明将光伏发电效率模型与遥感蒸散发反演模型SEBS耦合,考虑光伏组件对能量收支的改变,极大的降低了系统性误差。
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Citation Information

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