Ramesh Babu Mutluri
Aswant Kumar Sharma
Dr. Vijay Kumar Gali
Abstract
Rapid growth in the demand leads to increased integration of Renewable Energy Source to distribution systems through converters of power electronics. Addition of Renewable Energy Sources with grid needs inverters. This paper discusses a proposed organize strategy for completely utilizing these inverters of grid-interfacing when used in a 3-Ph 3-wire distribution system. By including active power filter functionality, the inverter operates as a device of having multi-function. The following are the functions of inverter:1) aids in injecting generated power to the grid from RES 2) Provide compensation for harmonics of load current, unbalance, reactive power necessity of load. This paper proposes using of the hysteresis current controller for grid interfacing inverter’s gate drives, the combined 3-Ph 3-wire linear/non-linear unbalanced load and grid-interfacing inverter which is connected to point of common coupling, grid encounters with a linear balanced load. Solar photovoltaic grid interconnection for power quality enhancement is validated by decreasing Total Harmonic Distortion in both the voltage and current by using the proposed control strategy of grid interfacing inverter. The proposed control is manifested by using MATLAB/ Simu-link platform.
Keywords- Renewable energy sources (RES); grid-interfacing inverter; Distributed generation (DG); Power quality (PQ).