Forecasting the PV Panel Operating Conditions Using the Design of Experiments Method

The aim of this study is to show how the Design of Experiments (DoE) Method can be put into use as a practical method to model an operating photovoltaic PV generator. Experiments were carried out and the whole current- voltage characteristics (I-V) were drawn. A mathematical model describing the variations of the Open-circuit voltage (Voc) and Short-circuit current (Isc) versus solar irradiance level and temperature was obtained with the DoE Method. This model is a predictive model. With the help of the HIDE software we can simulate the PV panel behavior and forecast, in real time, the variations of Voc and Isc anywhere in the surveyed experimental domain.The basic concepts of the DoE Method that makes it possible to properly define and establish the model are presented. Then a complete analysis of measurements is performed in order to interpret the results and optimize the method.