Performance Enhancement of a Partially Shaded Photovoltaic Array by Optimal Reconfiguration and Current Injection Schemes

The output of a photovoltaic array is reduced considerably when PV panels are shaded even partially. impact shading causes an appreciable loss in power delivery, since the connected series and parallel to contribute required voltage for load. prevailing research on mitigating mostly based complex reconfiguration strategies where subjected rewiring schemes. On other hand, disperse many studies literature defend physical rearrangement panels. available intensive schemes, such as (SP), bridge link (BL), honeycomb (HC), total cross tied (TCT) try only mitigate there no scope compensation; result, inevitable. In proposed work, both mitigation compensation losses incurred due studied. this optimal scheme adopted reduce electronic circuit with battery source designed compensate all aspects. scheme, bifurcation strategy each column electrical connections interchanged that dispersed. consists half-bridge buck converter injects current by column. This setup compensates array’s improves efficiency system. was implemented 3200 W system various patterns, including single panel shading, corner long wide random shading. simulated MATLAB Simulink environment compared static 4 × configurations, configurations. comparative performance assessed terms mismatch loss, fill factor, efficiency. suitable patterns proved be very efficient worst 1353 saved.