Comparison of current control methods on carrier based VSI-PWM inverter drivers from line power quality aspects

摘要

This paper describes simulation result of two methods in current controlling for carrierbased VSI-PWM inverter: hysteresis and ramp comparison control. The simulation useful inselection of ASDs and generally–converter, from power quality point of view. Simulation resultshow that both ramp comparison and hysteresis control methods gives difference characteristicon line voltage and line current. A ramp comparison method is better in form of lower effect online current distortion compare with hysteresis control method. Meanwhile, for line voltagedistortion, hysteresis control seen better.