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Performance Improvement of PV Array by Minimizing Circulating Current through Modified Bypass Arrangement in Partial Shaded Condition

Considerable circulating current flows within PV array bypass diode under partial shaded condition. This circulating current creates extra loss for PV based power extraction system and it degrades the system efficiency. This paper analyzes the circulating current loss within PV array under partial shaded condition. Based on the analysis a new bypass diode arrangement is proposed for minimizing circulating current loss for PV array. The modelling of the system is done in MATLAB-2017-(a) for simulation. Finally, the proposed arrangement is tested in (3X3) PV array system where individual panel is of 200W.