Power quality is the most important thing to think about when putting together power systems for businesses and factories. Currents that are pulled by non-linear loads tend to be spiky and only last for a short time. Harmonics are made when these pulses cause the waveforms of the current to get messed up. Harmonics can cause problems with both the equipment that makes up the power distribution system and the loads that are plugged into it. In this paper, we simulate a single-phase grid-connected solar photovoltaic (PV) system made up of a DC-DC boost converter with a controller for Maximum Power Point Tracking (MPPT) and a DC-AC inverter that uses the unit voltage template method to get the signals needed to drive the inverter's switches. Together, these parts make up a DC-to-AC inverter that can track the Maximum Power Point. All the information about Total Harmonic Distortion (THD) is put together in one place. The MPPT controller makes the system stronger by making sure that as much solar energy as possible is collected. This makes the system more reliable. The performance of the power quality improvement has been proven by the results of the MATLAB/Simulink simulations.

Photovoltaic, Maximum Power Point Tracking, Total Harmonic Distortion, DC-DC Converter