Chess Game Rook-Icon Movement-Based Photovoltaic Array Reconfiguration for Higher Shade Dispersion and Improved Global Power Peaks Under Partial Shading Conditions: An Experimental Study

Solar photovoltaic (PV) system generates low power because of nonuniform sun irradiation compared to standard test conditions. Partial shading conditions (PSCs) can arise from various factors, with passing clouds, trees, telecommunication towers, bird droppings, and similar elements being among the most prevalent causes. Under the shading scenario, multiple global and local maxima power points exist on the P-V curves. Herein, the chess game rules for the "Rook" icon are followed to attain the optimal placement of integer numbers (1-9) in the 9 x 9 size game puzzle matrix. The integer number-based game puzzles such as Su-Do-Ku, symmetric matrix, and proposed Rook's movement-game theory (RMGT) to rearrange the PV modules in arrays are investigated and compared with the standard arrangements such as series-parallel, total-cross-tied during PSCs. The suggested RMGT puzzle-based arrangement is able to achieve higher power at global maximum power point, performance enhancement, fill factor, and low power loss. As a result, the experimental study proves the superiority of RMGT configuration compared to conventional methodologies under the shading scenarios. The proposed RMGT-based PV array is tested and obtained the performance higher side as, 63.27ImVm$\left(63.27 I\right)_{m}V_{m}$, 64.17ImVm$\left(64.17 I\right)_{m}V_{m}$, 58.95ImVm$\left(58.95 I\right)_{m}V_{m}$, and 76.77ImVm$76.77I_{m}V_{m}$ compared to existing reconfiguration methodologies. Novel Rook's movement-game theory puzzle-based photovoltaic array is compared with the conventional series-parallel, total-cross-tied, symmetric matrix, and Su-Do-Ku configurations (9 x 9 size) under partial shading conditions. Performance investigation is carried out in terms of global maximum power point, fill factor, power loss, %performance ratio, and %power loss and the MATLAB/Simulink results are validated experimentally to check the feasibility of the concept.image (c) 2024 WILEY-VCH GmbH