Analysis of Passive Partial Shading Mitigation Technique for PV Array

In the present day, a significant portion of the world’s energy demand can be satisfied through the utilization of renewable energy sources. Solar energy, in particular, holds a pivotal position owing to its numerous merits. However, it faces a challenge known as mismatch response within the photovoltaic (PV) modules of an array when subjected to partial shading. This issue restricts power output, leads to the formation of local hot spots, and results in the underutilization of PV modules within the array. One of the most effective solutions to address this problem is optimizing the PV array (PVA) configuration to maximize output power under partial shading (PS) conditions. In this research paper, we commence with a thorough numerical analysis under uniform shading conditions. Following that, we scrutinize the performance of six traditional PVA configurations and three hybrid PVA configurations under PS conditions. The results consistently indicate that the Total Cross Tied (TCT) configuration outperforms others in all shading scenarios in terms of mitigating mismatch power loss, enhancing the fill factor, and improving overall efficiency.