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Communication Dans Un Congrès Année : 2023

Simple and low-cost horizon estimation method for solar harvesting systems

Résumé

Sky imaging is used to determine local obstructions that may have an important impact on solar availability of an autonomous system powered by photovoltaic (PV) energy. However, there is currently no inexpensive, yet simple, solution that incorporates the determined horizon with weather database and system specifications for forecasting purposes. In this work, we first look at the autocalibration of cheap fisheye lens clipped onto a smartphone to extract a complex horizon from a sky image. It is then coupled with PVGIS irradiance database to generate a forecast. Finally, we contrast this result with experimental ones taken during March 2023. Overall, the shading information improves forecast precision but error still persists due to factors like weather variability and the difference between irradiance received by the solar panel's large surface and what is captured by a tiny sensor.
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Dates et versions

hal-04187583 , version 1 (24-08-2023)

Identifiants

  • HAL Id : hal-04187583 , version 1

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Kha Bao Khanh Cao, Vincent Boitier. Simple and low-cost horizon estimation method for solar harvesting systems. Journées Nationales sur la Récupération et le Stockage de l’Energie 2023, Jun 2023, Paris, France. ⟨hal-04187583⟩
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