Abstract: World is leading towards the modernization & day-to-day lifestyle requires energy sources. Increasing population needs extra energy to be produced, but the limited amount of resources like coal, petroleum, natural gas etc., interrupts the flow of energy being supplied. The alternate ways to satisfy this demand and the best for practices against the risk of climatic changes are renewable sources. Solar energy is the most effectual and the clean source of energy used in distributed generation’s unit which is seen to be as a local and micro capacity energy generating units. These are placed at distribution part of the power system. Non-renewable sources along with the renewable resources can be an imperishable method for yielding power, and as the development and the research becoming successfully implemented to the ground we are set to go for totally renewable based energy. Hybrid systems are also at next level in producing power, this has the advantage that each could stand inspite of other in the grid tied state when one of them is not in a state of producing enough power which is being demanded by the load. This paperwork has briefly discussed about the two stages, three phase inverter interfacing Solar PV DG system and Grid. DC-DC boost converter has an edge of operating at maximum power point to harness enhanced output voltage. Maximum power is being extracted by enacting perturbation & observation algorithm to provide a controlled Duty Cycle to the boost converter. The DC-AC power converter is controlled by dq conversion, Proportional-Integral, Phase Locked Loop controller and Single Pulse Width Modulation technique employed. LCL filter enhance power quality which is measured by THD analysis in MATLAB/SIMULINK

Keywords: Renewable Energy, Distributed Generation, DC-DC Converter, MPPT, Filter, THD

| DOI: 10.17148/IARJSET.2022.9916