IMPACT STUDY OF PARTIAL SHADING PHENOMENON ON SOLAR PV MODULE PERFORMANCE

The solar cells under partial shadows are caused by obstruction of the solar radiation in some parts of the module. Considering, the influence of these shadows reduces the energy produced, increase in operating temperature and damages on solar modules produced by the resulting hot spot. A review of the different modes of PV module degradation has been proposed. This paper deals with the performance of shaded solar modules, which result in power and operating temperature change ( total energy dissipation and cracking the solar module due to overheating of the module). It is therefore important to take suitable action to reduce this effect. The reverse current due to partial shaded can increase to a high temperature on the module. It can be seen from the analysis, that the hot spot of solar cell components in the concentration of the element is not uniform. This paper focuses on the effects of temperature and shaded cells. Various types of PV degradation have been highlighted and different cases of shading solar are analysed. A bypass diode model in PV modules is used to increase the power and operating temperature of solar cells in shaded areas using MATLAB / Simulink model.