Characterization of GTOs under different modes of zero current switching

Author

Mertens, Axel ; Skudelny, Hans-Christoph ; Caldeira, Paulo P A ; Lipo, T.

Author_Institution

Siemens AG, Erlangen, Germany

Volume

9

Issue

3

fYear

1994

fDate

5/1/1994 12:00:00 AM

Firstpage

338

Lastpage

345

Abstract

Several papers have described the use of GTOs in zero current switching (ZCS) applications, with the goal of increasing the frequency range for medium- and high-power converters. Zero current switching with GTOs can be applied in series and parallel resonant converters, as well as in PWM inverters with commutation aid networks. The voltage and current waveforms at the devices differ in each of these applications, and different modes of ZCS can be identified. In this paper, a comparative view of the behavior and characteristics of the GTO in the different modes of ZCS is presented. The variety of ZCS waveforms is described and transferred into a unifying schematic. The behavior of GTOs in the different modes of operation is characterized, and requirements to the circuit environment are pointed out. The relations between the most important circuit parameters and some of the device waveform parameters are investigated experimentally

Keywords

circuit resonance; commutation; invertors; power convertors; pulse width modulation; switching circuits; thyristor applications; GTO; PWM inverters; commutation aid networks; current waveforms; high-power converters; medium-power converters; parallel resonant converters; series resonant converters; voltage waveforms; zero current switching; Circuits; Frequency conversion; Power electronics; Pulse width modulation inverters; Resonance; Switching converters; Switching frequency; Thyristors; Voltage; Zero current switching;

fLanguage

English

Journal_Title

Power Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0885-8993

Type

jour

DOI

10.1109/63.311267

Filename

311267