A rugged soft commutated PWM inverter for AC drives

Author

Cheriti, A. ; Al-Haddad, K. ; Dessaint, L.-A. ; Meynard, T.A. ; Mukhedkar, D.

Author_Institution

Ecole Polytech., Montreal Univ., Que., Canada

fYear

1990

fDate

0-0 1990

Firstpage

656

Lastpage

662

Abstract

A novel DC/AC power converter for variable-speed AC motor drives using the zero voltage switching technique is described. This converter combines the advantages of soft commutated inverter and those of conventional PWM (pulse width modulation) control inverters. In the proposed scheme the soft commutation reduces the constraints on the switches and the PWM enables simple and efficient regulation of the power flow. Furthermore the zero voltage switching technique makes operation very safe, and switching bipolar transistors at 20 kHz is easily achieved without compromising the efficiency of the system.<>

Keywords

AC motors; bipolar transistors; commutation; invertors; power convertors; pulse width modulation; switching; variable speed drives; 20 kHz; DC/AC power converter; bipolar transistors; power flow; pulse width modulation; rugged soft commutated PWM inverter; variable-speed AC motor drives; zero voltage switching; AC motors; Analog-digital conversion; Commutation; Pulse inverters; Pulse width modulation; Pulse width modulation converters; Pulse width modulation inverters; Switches; Switching converters; Zero voltage switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 1990. PESC '90 Record., 21st Annual IEEE

Conference_Location

San Antonio, TX, USA

Type

conf

DOI

10.1109/PESC.1990.131251

Filename

131251