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Low-Cost Solar Irradiance Sensing for PV Systems

Miguel Carrasco, Antonino Laudani, Gabriele Lozito, Fernando Mancilla-David, Francesco Riganti Fulginei, Alessandro Salvini
2017 Energies  
Determination of solar irradiance is a critical asset to ensure efficient working conditions for a photovoltaic (PV) system. This work analyze the feasibility of assessing solar irradiance on a PV device assuming the knowledge of the device temperature and the voltage/current operating point. This work proposes an approach based on a manipulation of the analytic expressions found in the reduced form of the "single diode" circuit model for a silicon PV device. The approach was validated through
more » ... validated through different practical experiments, and the results obtained are comparable to the ones of a commercial instrument for irradiance sensing. The ease of construction and the reduced costs involved make a device based on the proposed approach suitable for large-scale integration in a PV plant.
doi:10.3390/en10070998 fatcat:lxtym7wcwrbbxbvqmd6mi4qzzi