Mahendra Widyartono, Reza Rahmadian
Photovoltaic (PV) is a technology that can directly convert solar energy into DC electricity by using semiconductors. The performance of PV modules is highly dependent on solar irradiance and temperature. In practice, solar irradiance can be blocked by moving clouds, trees, other buildings, or dust that accumulates so that it will cast shadows on the PV module. If the sun's irradiance is blocked or shading, the performance of the PV module will also be affected. In densely populated areas such as in large cities where there are many tall buildings and do not have enough land or areato install PV arrays, shading problems cannot be avoided. This study uses modeling of partial shading and shading heaviness on one or several PV modules to determine its effect on global I-V characteristics and maximum power generated from PV arrays. Six PV modules are modeled and simulated usingMATLAB in this study. The results of this study conclude that the I-V characteristic and the globalmaximum power output of the PV modules affected by partial shading are better arranged in series inone string then connected parallel with the inverter compared to shaded PV modules which are arranged in different string then connected parallel to an inverter. This study can be used by PV arrays designers to build a PV system in a limited area that is reliable, safe, and can still produce highmaximum power under partial shading conditions. © 2020 IEEE.
State University of Surabaya, Engineering Faculty, Electrical Engineering Department, Surabaya, Indonesia
