A Fuzzy-Based Method for Improving the Quality of Power in a Grid-Connected System Using a Solar Pv-Fed Multilevel Inverter

Abstract

The combination of non-conventional sources, namely solar photovoltaic (PV) systems, into the power grid has received considerable recognition in recent years, mostly because of its environmental and economic advantages. Nevertheless, the incorporation of these systems presents difficulties with power quality, including issues with voltage variations, harmonics, and the control of reactive power. This work introduces a control approach based on fuzzy logic to improve the quality of electricity in grid-connected devices. The technique utilizes a multilayer inverter powered by solar photovoltaic (PV) energy. The incorporation of solar photovoltaic (PV) systems into the power grid brings up several power quality concerns, including voltage swings, harmonics, and imbalances in reactive power. This research introduces a control technique based on fuzzy logic with a solar PV-fed multilevel inverter to improve power quality in the proposed. The proposed system utilizes a multilayer inverter to minimize harmonic distortion and enhance voltage profiles. An inverter's output is regulated by a fuzzy logic controller (FLC) to guarantee steady and high-quality power transmission to the grid. The simulation findings clearly show that the FLC is effective in ensuring voltage stability, minimizing total harmonic distortion (THD), and improving reactive power flow. This highlights the potential of the FLC for broad use in current grid-connected renewable energy systems.