A novel closed-loop algorithm for selective harmonic control in voltage-source inverters

Abstract

This paper presents a novel closed-loop algorithm to control the low-frequencyharmonic contents of the output voltage in voltage-source inverters. The proposed controller can be used to minimise unexpected output-voltage harmonics due to practical implementation aspects of the pulse-width-modulation algorithm (switch dead time, for example). Simulation results are presented to illustrate the main contribution of this work.