The 1-sun I-V curve for a 40-cell PV module in full sun is shown below along with an equivalent circuit for a single cell (including its 10? parallel resistance). An array with two such modules in series has one fully shaded cell in one of the modules. Consider the potential impact of bypass diodes around each of the modules.
a) Sketch the 1-sun I-V curve for the series combination of modules with one cell shaded but no bypass diodes. Find the power output at the maximum power point. Compare it to the output when there is no shading.
b) Sketch the 1-sun I-V curve when the bypass diodes are included. Estimate the maximum power output now (close is good enough).
