Title :
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
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;
Conference_Titel :
Industry Applications Society Annual Meeting, 1989., Conference Record of the 1989 IEEE
Conference_Location :
San Diego, CA, USA
DOI :
10.1109/IAS.1989.96744
