Industrial Automation PLC-based modeling and diode ideality factor impact on PV characteristics

Abstract

This paper proposes a novel modeling approach of photovoltaic (PV) module using SIEMENS industrial automation PLC S7-300. The main contribution of this work is the modeling of PV module using the automation PLC and the study of the impact of the diode ideality factor variation on the PV module characteristics. To validate the accuracy of the proposed approach, the datasheet’s I-V curves for several irradiation levels at 25°C of a multi-crystalline PV module will be compared to the simulated I-V and P-V curves obtained by SIEMENS WinCC flexible.