부산대학교 도서관

Solar Photovoltaic (PV) systems are experienced low power generation due to partial shading conditions (PSCs). The major reasons of shading scenarios are clouds, nearby high floor buildings, trees, and telecom towers, etc. When the PV modules are partly shaded, it decreases the power output and efficiency as well. In addition, PV modules show multiple power peaks at the power-voltage (P-V) curve. Different PV module arrangements explore to diminish the shading impacts. In this paper, total cross-tied (TCT), Su-do-Ku (SDK), and Improved Su-do-Ku (I-SDK) puzzles based electrical connections of modules are adopted and tested under PSCs in PV array. The performance of the I-SDK arrangement of the PV modules based array system has highest shade-dispersion, which is cause of best power enhancement. The values of different performance parameters such as mismatch power loss (PL), fill factor (FF), performance ratio (PR) and power point locations at global and local maxima power point (LMPP and GMPP) are analyzed in MATLAB/ Simulink environment.