PVID 1.0

PVID (PhotoVoltaic IDentification) is an interactive MATLAB application that enables users to easily perform parameter identification of both complete (5-parameter) and simplified (4-parameter) single-diode PV models, starting either from datasheet values or from experimental data. A graphical user interface allows to interactively select an arbitrary starting (Rs, Rsh) couple, clicking on the Rs vs. Rsh plane. Therefore, PVID enables users to interactively simulate the behavior of 5- or 4-parameter single-diode models and to perform a numerical and graphical comparison as for the ability to reconstruct the I-V curve of the PV source. On the other hand, the application allows to verify the effect of a wrong solution, e.g., returned by iterative methods, on the reconstruction of the I-V curve. In addition, the user can evaluate whether/how much the maximum power point (MPP) moves when the starting (Rs, Rsh) couple is varied.