Improvement of the Performance of Solar PV Array topologies under various partial shadowing situations

Abstract

The partial shadowing effect significantly lowers the solar photovoltaic (PV) array's output power. To lessen the impacts of partial shade in PV arrays, several researchers have proposed a variety of array construction and reconfiguration strategies. In order to enhance performance under partial shadowing circumstances (PSCs), this research suggests novel PV array topologies (PVATs).Partial shadowing is a common occurrence for photovoltaic (PV) systems, and it significantly impairs the overall performance and efficiency of solar arrays. A precise understanding of how shadowing affects PV panels at a specific location are necessary for a techno-economic analysis to be correct. Due to a discrepancy in the power outputs from individual panels, the PV array's total efficiency is significantly reduced by partial shade. To improve their efficiency in shadowed areas, a range of tactics may be employed, such as MPPT methods, PV array design, converter circuit topologies, and PV system designs. The performance of several PV array topologies in situations with partial shade is investigated in this study. The building of PV arrays requires a number of electrical connections between PV modules. Several solar array topologies are investigated, including Bridge-Link, Honey-Comb, Total-Cross-Tied, Series, and Series-Parallel.A distinct partial shade pattern is used to mimic each array layout. Standard test circumstances and various partial shadow patterns were used to duplicate and assess the previously specified 4x4 PV array designs. Finding the optimal array arrangement under the shadow pattern was the aim of the inquiry.