The Effects of Partial Shading on a Grid-Integrated Photovoltaic System with MATLAB-SIMULINK

Year 2025, Volume: 5 Issue: 1, 66 - 77, 28.02.2025

Farhanur Rahman Mohammad Jarif Bulbul Minhaz Yeamin Arif Ahammad

https://doi.org/10.5152/tepes.2024.24014

Abstract

Photovoltaic (PV) technology has gained significant popularity in recent years. While integrating solar energy into power systems offers numerous benefits, it can also lead to challenges such as voltage instability, increased total harmonic distortion, and power quality issues, especially under partial shading conditions (PSC). These conditions can result in multiple local maximum power points on the power–voltage (P–V) curve. To address these challenges, maximum power point tracking controllers are essential for maximizing power output from PV systems. This study presents the successful implementation of a three-phase, grid-integrated PV system in various scenarios, including PSC, standard test conditions, and variations in load. The implementation achieved some impressive results in mitigating the instabilities. The proposed strategy was simulated and evaluated using the MATLAB/Simulink environment.

Keywords

Grid-integrated PV systems , modeling , partial shading conditions , solar irradiation , total harmonic distortion (THD)

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