Modeling of Temperature and Irradiance Effect on Solar Cells Parameters By MATLAB/Simulink and Verification Using Experimental Data

The limited efficiency of a photovoltaic (PV) system, which is affected by solar radiation and operating temperature, hinders their widespread adoption. This study concentrates on developing a user-friendly MATLAB/Simulink model to investigate the effect of temperature and irradiance on the performance of solar cells and aims to improve the comprehension of solar cell behavior and to develop a method for accurately predicting output under different conditions. The investigation commences with a theoretical analysis of temperature and irradiance dependencies, including their impact on current-voltage and power-voltage characteristics. The Simulink model is then used to simulate and analyze these correlations, while experimental data gathered using a dual-axial solar tracker is used to provide independent validation. The validation data for open circuit voltage only deviates by 5% from the simulation value, while the deviation for short circuit current is 18%. These findings facilitate the optimization of solar energy systems and contribute to a deeper comprehension of solar cell behavior.