A simplified space vector pulse width modulation technique for multilevel inverter fed induction motor drive

Author

Sabah, V.S. ; Baby, T. Charles ; Lall, Krishna Prabhakar ; Balamurugan, M. ; Sahoo, Sarat Kumar ; Chitra, A. ; Karthikeyan, Prabhakar ; Raglend, I. Jacob

Author_Institution

Sch. of Electr. Eng., VIT Univ., Vellore, India

fYear

2015

fDate

19-20 March 2015

Firstpage

1

Lastpage

5

Abstract

Improved dc bus utilization of voltage and its easier realization in digital domain has made Space Vector Pulse Width Modulation (SVPWM) quite popular in AC drives application. The classical Space vector pulse width modulation involves sector calculation and region estimation which results in more computational burden and complexity. A new simplified and generalized SVPWM algorithm is developed for a cascaded H bridge multilevel inverter using sampled values of reference phase voltages. The discussed method has a close similarity with Sinusoidal Pulse Width Modulation (SPWM). Implementation of the proposed SVPWM is not laborious and extension to n level is simple and straight forward. The proposed method is validated using a five level cascaded H bridge multilevel inverter driving an Induction motor.

Keywords

PWM invertors; bridge circuits; induction motor drives; AC drives application; cascaded H bridge multilevel inverter; digital domain; generalized SVPWM algorithm; multilevel inverter fed induction motor drive; region estimation; sector calculation; simplified space vector pulse width modulation technique; sinusoidal pulse width modulation; Bridge circuits; Induction motors; Inverters; Space vector pulse width modulation; Switches; Induction motor drive component; MLI-Multilevel Inverter; SVPWM-Space Vector; Time equivalent;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuit, Power and Computing Technologies (ICCPCT), 2015 International Conference on

Conference_Location

Nagercoil

Type

conf

DOI

10.1109/ICCPCT.2015.7159462

Filename

7159462