Game theory based strategy to reconfigure PV module arrangements for achieving higher GMPP under PSCs: Experimental feasibility

Abstract

Due to shading conditions, solar photovoltaic (PV) arrays deliver less power compared to ideal operating conditions. Moving clouds, nearby telecom towers, and trees, among other things, are the basic causes that come under partial shading conditions (PSCs). Furthermore, PV array characterization carries multiple maximum power points (MPP) on the P–V characteristics. Distinguish the electrical connections of PV modules present in literature to show the diminishing effect of PSCs. In the present manuscript, existing Series–parallel (SP), bridge-link (BL), honey-comb (HC), total-cross-tied (TCT), and proposed Game Theory (PGT) puzzle-based rearrangements of PV array systems are employed and analysed during shading instances. The PGT puzzle-based arrangement shows higher shade-dispersion capability, which accounts for power enhancement (PE), improved fill factor (FF), and minimum power loss (PL). Over all, the considered performance indices are identified based on the behaviour of global and local maxima power point (LMPP and GMPP) locations on the obtained power–voltage (P–V) curves behaviour. The experimental system is developed and tested to obtain the performance of PGT higher side as 52.92ImVm, 59.67ImVm, 52.65ImVm, and 44.1ImVmcompared to existing approaches.

Keywords

• Photovoltaic system
• Alternative energy source
• Performance enhancement
• Power loss
• Global maximum power
• Shading effect