Two-mode overmodulation in two-level voltage source inverter using principle control between limit trajectories

Abstract

A two-mode overmodulation in two-level VSI using the control principle between limit trajectories is presented. The control principle between limit trajectories is used to ensure linear modulation from linear range of space vector pulse width modulation to six step mode and two-mode is employed to get better performance of overmodulation. The proposed principle is verified by software simulation.