Modeling of Random Shading Effects in Solar Cells

Abstract

This paper introduces a modeling scheme that takes the effects of shading patterns on the output power of a solar cell array using MATLAB. A module consisting of an array of parallel connected strings of solar cells is considered for analysis under shading conditions. The model finds the solutions of complex nonlinear equations of solar cell under random illumination conditions. The approach has been extended to special shading cases. Additionally the effect of load resistance variation on the maximum power point under different shading patterns is performed.