Abstract: From past so many years, power production from solar photovoltaic has received expansion. It has lots of gratifications compared to other non-renewable energy sources. Also solar photovoltaic converts sunlight directly into electricity. However, the major snag in using solar photovoltaic is the effect of partial shading on it. The effect of partial shading on solar photovoltaic systems is such severe that it need not to cast on whole photovoltaic array to ruin its performance but if shading appears on even a small portion of array it will diminish the output of whole photovoltaic system to almost zero. In this paper, all the techniques that have been reported in literature to mitigate the effect of partial shading on solar photovoltaic systems are mentioned and compared. It is envisaged that this work will be a source of valuable information for photovoltaic researchers and professionals working in this area.
Keywords: Solar PV Systems, Mitigate, Partial Shading, solar photovoltaic.