Stationary frame current regulation using Proportional Resonant controller for single phase grid connected inverter

Abstract

This paper presented Proportional Resonant (PR) current control of single phase grid connected inverter for PV energy conversion to the utility grid. The synchronization mechanism is Second-Order Generalized Integrator (SOGI) phase locked loop (PLL). The PR current control is regulator in stationary reference frame and an advantage is reduce current distortion. The implemented software using Real Time Workshop and DS1103 Library in Matlab/Simulink environment. The simulation and HIL402 experimental results of single phase inverter has been shown that the current quality is satisfy with IEEE Std. 1547-2003.