An economical four-quadrant GTO converter and its application to DC drive

Author

Khan, B. ; Dubey, G. ; Doradla, S.R.

Author_Institution

Dept. of Electr. Eng., A.M. Univ., Aligarh, India

fYear

1990

fDate

11-16 March 1990

Firstpage

237

Lastpage

243

Abstract

A four-quadrant converter employing a single six-GTO bridge and four thyristors as reversing switches is described. Such a four-quadrant converter is economical compared to a dual converter employing two bridges, each with six GTOs. A four-quadrant DC drive employing the proposed converter and closed-loop speed control with inner current control loop is also presented. The controllers are designed using symmetric optimization. The experimental results are given for the steady-state and transient response of the drive. A comparative study of the present four-quadrant drive and one reported earlier is also presented.<>

Keywords

DC motors; electric current control; electric drives; power convertors; thyristor applications; velocity control; 4-quadrant GTO convertor; DC drive; closed-loop speed control; inner current control loop; steady-state response; symmetric optimization; thyristor applications; transient response; Bridge circuits; Commutation; DC motors; Power generation economics; Pulse width modulation; Switches; Switching converters; Thyristors; Velocity control; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Power Electronics Conference and Exposition, 1990. APEC '90, Conference Proceedings 1990., Fifth Annual

Conference_Location

Los Angeles, CA, USA

Type

conf

DOI

10.1109/APEC.1990.66416

Filename

66416