Simplified Space Vector PWM Algorithm for a Three Level Inverter

Abstract

Abstract—The Space vector based PWM strategies have broader choice of switching sequences to generate the required reference vector than triangle comparison based PWM techniques for three-level inverters. However, Space Vector based PWM technique involves various steps which are computationally exhaustive. In order to reduce this complexity, a simplified algorithm is proposed here. This work aims at reducing of harmonic distortion in high-power drives, which have low switching frequencies.  In this paper, Conventional Space Vector based PWM (CSVPWM) algorithm and Modified Space Vector based PWM (MSVPWM) algorithm are presented.

Index Terms—multilevel inverter, computational efforts, Conventional Space Vector based PWM, Modified Space Vector based PWM