A photovoltaic cell model based on nominal data only

A model of a photovoltaic array is developed using only the nominal values of the modules: open-circuit voltage, short-circuit current, maximum power point, and the temperature coefricients of the first two parameters. Its originality is that, although the model uses four degrees of freedom for the characteristics I-U at nominal junction temperature, these are fitted without using the temperature coefficients. After that, the temperature coefficients are still available for the determination of the temperature behavior of the elements of the model. A numerical example is presented and the source code used is made available.