Three-phase current source GTO rectifier adopting new PWM control techniques

Author

Iwahori, Michio ; Kousaka, Kenji

Author_Institution

Fuji Electric Corp. Res. & Dev. Ltd., Tokyo, Japan

fYear

1989

fDate

1-5 Oct. 1989

Firstpage

855

Abstract

A three-phase current source gate turn-off (GTO) thyristor rectifier is described with a high power factor, low line current distortion, and a simple main circuit. It adopts pulse-width modulation (PWM) control techniques obtained by analyzing the PWM patterns of three-phase current source rectifiers/inverters, and it uses a method of generating such patterns. In addition, by using an optimum set-up of the circuit constants, the GTO switching frequency is reduced to 500 Hz. This rectifier is suitable for large power conversion, because it can reduce GTO switching loss and its snubber loss.<>

Keywords

invertors; power convertors; pulse width modulation; rectifiers; switching; thyristor applications; voltage control; 500 Hz; PWM control techniques; current source GTO rectifier; invertors; line current distortion; power conversion; power convertors; power factor; snubber loss; switching frequency; switching loss; three-phase; thyristor; voltage control; Circuits; Pattern analysis; Pulse generation; Pulse inverters; Pulse width modulation; Pulse width modulation inverters; Reactive power; Rectifiers; Switching frequency; Thyristors;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Society Annual Meeting, 1989., Conference Record of the 1989 IEEE

Conference_Location

San Diego, CA, USA

Type

conf

DOI

10.1109/IAS.1989.96744

Filename

96744