An optimal control technique for single-phase grid-connected inverter

Abstract

This paper evaluates the performance of control technique based on Digital Pulse Width Modulation (DPWM) for single-phase grid-connected inverter application. Despite the importance of this synchronization technique, reports on its performance are scarce. The evaluation takes place in two simulation environments: ModelSim and MATLAB/Simulink. The performance of the technique expressed in Total Harmonic Distortion (THD) of Point of Common Coupling (PCC) current of the inverter is found to be 3.62%, a very good result on the standard of IEEE-519. This encouraging performance of this technique will result in injecting more renewable energy into the grid system, resulting in a more sustainable system.

The Influence of Solar Irradiance and Temperature on The Pll-Synchronized Inverter Within Grid-Connected PV Systems

“…However, when integrating PV systems into AC grids using grid-connected inverters (GCIs), adherence to standard grid specifications becomes imperative (El Aroudi et al, 2022). Compliance with various grid requirements ensures the safe and dependable operation of PV sources integrated into the utility grid (Ali et al, 2023), with power quality, synchronization, and total harmonic distortion (THD) emerging as paramount parameters (Ali et al, 2022).…”