Grid Connected 3 Phase Inverter
Grid connected photovoltaic (PV) systems feed electricity directly to the electrical network operating parallel to the conventional source. This Project provides the complete solution to integrate the PV system with Grid and also with MPPT in MATLAB SIMULINK environment which can be a part of photovoltaic grid connected systems.
The Inverter used to convert the power from the PV System to Grid side with phase synchronization. Designed with a Voltage source inverter (VSI) which is controlled using synchronous d-q reference frame to inject a controlled current into the grid.
Phase lock loop (PLL) is used to lock grid frequency and phase. The design of low pass filter used at the inverter output to remove the high frequency ripple is also discussed and the obtained simulation results are presented.