High power GTO AC/DC current source converter with minimum switching frequency and maximum power factor

Author

Xiao, Y. ; Wu, B. ; Dewinter, F. ; Sotudeh, R.

Author_Institution

Dept. of Electr. & Comput. Eng., Ryerson Polytech. Inst., Toronto, Ont., Canada

Volume

1

fYear

1996

fDate

26-29 May 1996

Firstpage

331

Abstract

This paper presents a unique PWM switching pattern and a novel power factor control scheme for high power GTO AC/DC converters. This switching pattern has a switching frequency of 360 Hz, which is the lowest possible frequency to achieve 5th and 7th harmonic elimination and an adjustable DC output current simultaneously. Using both feedback and feedforward control techniques, the proposed power factor control scheme can keep the converter input power factor at unity or a maximum achievable value. Simulation and experimental results are given to confirm the proposed PWM pattern and power factor control scheme

Keywords

AC-DC power convertors; feedback; feedforward; power factor correction; power system harmonics; switching circuits; thyristor convertors; 360 Hz; 5th harmonic elimination; 7th harmonic elimination; PWM switching pattern; adjustable DC output current; converter input power factor; feedback control; feedforward control; high power GTO AC/DC current source converter; maximum power factor; minimum switching frequency; power factor control; Analog-digital conversion; DC-DC power converters; Power engineering and energy; Power engineering computing; Pulse modulation; Pulse width modulation; Pulse width modulation converters; Reactive power; Switching converters; Switching frequency;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical and Computer Engineering, 1996. Canadian Conference on

Conference_Location

Calgary, Alta.

ISSN

0840-7789

Print_ISBN

0-7803-3143-5

Type

conf

DOI

10.1109/CCECE.1996.548104

Filename

548104