Optimization of MPPT and UPF in Grid Connected PV System

AN inverter is used in photovoltaic (PV) systems to convert the direct current (DC) electricity generated by solar panels to AC electricity. It's used to power homes and businesses or fed back into the electricity grid. The inverter in this article designed to be more efficient and reliable by using a nonlinear control strategy. This approach considers the non-linear characteristics of the PV system and the switching functions of the inverter, which can impact the system's overall performance if left unaddressed. By using this strategy, the inverter can track the maximum power by maximum power point tracking (MPPT) generated by the PV system regardless of changing the control strategy implemented in the developed inverter enables it to adjust to various atmospheric conditions and regulate the active and reactive power output without requiring any supplementary equipment which seems to be unity power factor (UPF). This inverter is a single-stage three-phase grid-connected photovoltaic inverter [8], meaning that it can convert DC power generated by solar panels into AC power with high efficiency and directly supply it to the electrical grid. The control approach guarantees that the inverter always functions at optimal levels, thereby delivering the highest possible power output. In summary, this article presents a new approach to designing an inverter for PV systems that uses a nonlinear control strategy to improve efficiency and reliability [3]