Key words: Photovoltaic, Partial Shading, Maximum Power Point Tracking, Configuration

Abstract: Partial shading of photovoltaic (PV) modules can affect a wide variety of plants ranging from utility-sized solar trackers to residential building-integrated PV, resulting in lower energy production yields. This paper presents background and experimental results from a PV system, operated under a variety of shading conditions. A procedure of simulation and modeling solar cells and PV modules, working partially shadowed in symbols environment, is presented. Simulation results have been contrasted with real measured data from a commercial PV module of Photowatt PW1650. Some cases of study are presented as application examples of this simulation methodology, showing its potential on the design of bypass diodes configuration to include in a PV module and also on the study of PV generators working in partial shading conditions.