Step by step parameters identification for photovoltaic generator

This paper has the focus to identify the unknown parameters of solar photovoltaic generators in real time, through the application of a new proposed technic. The identification process is discussed with details, about the four steps of identification. In this regard, the first step explain the experimental data acquisition work, to obtain data from real photovoltaic system. For the second step, a two-diode model of a cell's equivalent electrical circuit is chosen as a model. In the third step, the estimation of the parameters values is done using proposed optimization approaches. The fourth step describes the validation of the model chosen. The advantage of these study compared to those before, is in the precision of the model chosen, the use of real data and in the use of smart optimization technics, which gives best results.