HYSTERESIS CURRENT CONTROLLED 3 PHASE GRID CONNECTED P V SYSTEM

The integration of distributed generation, like sun and wind power, is increasing because of the reduction of fossil fuels and the need to lower carbon emissions. This integration, particularly of Solar PV, can cause power quality issues in distribution networks, notably higher Total Harmonic Distortion (THD). This study investigates the impact of varying levels of solar power penetration on grid power quality Using analysis of the Fast Fourier transform to measure THD. The research focuses on developing controllers for boost converters and grid-tied inverters to minimize harmonics in grid-connected PV systems. In particular, tracking maximum power points (MPPT) is designed for the boost converter, and Hysteresis Current Control (HCC) is implemented for the inverter to reduce THD, ensuring compliance with IEEE519-1992 standards. Simulations using MATLAB 2024a demonstrate The efficiency of these controllers. Comparative analysis shows that incorporating the hysteresis current controller significantly improves power quality by reducing THD, thus enhancing the overall functionality of the grid-connected PV system.