Design and Implementation of Phase Locked Loop for Distributed Generation Systems

This project work concentrates on design and implementation of grid frequency synchronization of three phase inverter fed grid connected system. Initially, three phase inverter with sinusoidal PWM technique has been simulated with MATLAB/Simulink for RL load. As a next step, the design of LC filter has been carried out to generate sinusoidal waveform because the grid is subjected to disturbance as modulating wave frequency modifications, it is obligatory to preserve the frequency of grid linked to strength gadget at 50 Hz. The Grid frequency synchronization alongside amplitude and phase perspective of grid, via segment locked loop method has been supplied. The entire setup is implemented in real time by generating sine PWM pulses with the help of Arduino ATmega328P microcontroller