EFFECT OF PARASITIC RESISTANCES AND DIODE IDEALITY FACTOR ON THE CHARACTERIZATION PARAMETERS OF PHOTOVOLTAIC MODULES: MATLAB SIMULATION STUDY

Document Type : Original Article

Authors

Electrical Power Engineering Department, Faculty of Engineering, Zagazig University, Zagazig, Egypt

Abstract

This paper studies the effects of series resistance, parallel resistance and diode ideality factor on photovoltaic module characterization parameters (short circuit current, open circuit voltage, fill factor and energy conversion efficiency). Parasitic resistances and diode ideality factor of the solar cell have an adverse impact on the cell performance, as these parameters increase the power losses in the cell and decrease the cell output power, FF and cell efficiency. This study shows that series resistance, parallel resistance and diode ideality factor have a significant effect on the photovoltaic performance. Therefore this effect can't be neglected and should be taken into account when using photovoltaic modules in different systems and when analyzing the module performance. Also this is useful for modeling process of PV modules, as the results are helpful in obtaining the best parameters values which match the datasheet parameters.

Keywords

ERJ. Engineering Research Journal
Volume 34, Issue 1
January 2011
Pages 11-17

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