Effect of bypass diode under partial shading in SPV module

Abstract

Solar Photovoltaic (SPV) systems are widely used as alternative energy source for the generation of electricity, because of their advantages over other energy sources. The performance analysis of PV modules is depends upon various parameters and shading is one of them. Shading of modules drastically affects the performance of the PV modules. This paper focuses on the study of effect of bypass diode during the partial shading of solar modules and also the effect of shading on the output of SPV module. This study is done by using bypass diode models developed and the simulation is done by using Simscape/MATLAB software. The performance of SPV system can be improved by reducing the shading effect.