Feasibility analysis of solar photovoltaic array configurations under partial shading conditions

Abstract

Operation of photovoltaic plants globally registered issues related to shading. Shading may be due neighboring construction, passing clouds, birds or birds litter will significantly reduce the power production of photovoltaic plants. In this paper feasibility analysis has been done for different array configurations under partial shading conditions. The performance of Series-Parallel(SP), Bridge-linked(BL), Honey Comb(HC) and Total Cross Tied(TCT) array configuration are analyzed and compared for 7×7 PV array under different shading conditions.The performance and characteristics (I–V and P-V) are compared with and without bypass diode; use of bypass diode in antiparallel across module or modules increases the power output but causes multiple peaks in P-V characteristics.