Overview of electrical power models for concentrated photovoltaic systems

Abstract

If the modelling of “conventional” PV modules behavior was well studied in the literature, the modelling of Concentrator PhotoVoltaic (CPV) systems is relatively unexplored. This modelling is more difficult because conversion process is more complicated and inputs more numerous: beam solar irradiance, ambient temperature and wind speed but also the spectral decomposition of the sun radiation depending on the atmosphere state and thickness. This paper presents an overview of electrical power models applied to a system installed at Ajaccio - Corsica. Results note that only DNI (Direct Normal Irradiance), Tair and AM (Air Mass) could be necessary to have a good evaluation of the power with a RMSE under 4.6 %.