Bathaee - K.N.Toosi University of Technology
Salimi - Islamic Azad University-Ardebil Branch

This paper presents the comparative performance evaluation of the two main control techniques for Grid Connected Inverters (GCI). SPWM 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 differences in the performance of the controllers in a typical static synchronous var compensator setup are investigated by simulations.

voltage controller, current controller, Grid Connected Inverter, transient response, harmonic spectrum