Durer’s Square Based Photovoltaic Configuration to Mitigate Partial Shading Losses

Renewable energy sources are gaining broad popularity due to fossil fuel shortages and environmental issues caused by conventional sources of energy. Solar Photovoltaic energy is a widely used source of renewable energy. The power which a solar cell produces is greatly affected by the degree of insolation. Partial shading occurs when one or more photovoltaic (PV) cells receive less radiation than other cells, which in turn affects PV cells' overall efficiency through decreased power generation. This paper proposes a Durer's square based interconnection scheme for mitigating the losses and improving the generated power during partial shading conditions. Six different shading cases are simulated and it is found that the proposed approach provides a higher output as that of existing TCT, SP-TCT and Odd-Even configurations.