Comparison of voltage control and current control methods in grid connected inverters

Abstract

This study presents the comparative evaluation of the performance of the two main control techniques for Grid Connected Inverters. Sinusoidal Pulse Width Modulation voltage controller and hysteresis current controller are considered here. The main control innovations, determined by industrial applications, are presented. Finally, suitable criteria for the comparison are identified and simulations investigation differences in the performance of the controllers in a typical static synchronous var compensator setup. © 2008 Asian Network for Scientific Information.