Characterization of GTOs under different modes of zero current switching

Author

Mertens, A. ; Skudelny, H. Ch ; Caldeira, P. ; Lip, T.

Author_Institution

Aachen Univ. of Technol., Germany

fYear

1991

fDate

24-27 Jun 1991

Firstpage

444

Lastpage

452

Abstract

Zero current switching with GTOs can be applied in series and parallel resonant converters, as well as PWM inverters with commutation aid networks. The voltage and current waveforms at the devices differ in each of these applications, and different modes of zero current switching (ZCS) can be identified. 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

switching; thyristors; GTO; PWM inverters; ZCS; commutation aid networks; current waveforms; parallel resonant converters; series resonant convertors; voltage waveforms; zero current switching; Circuits; Drives; Power electronics; Pulse width modulation inverters; Resonance; Switching converters; Switching frequency; Thyristors; Voltage; Zero current switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 1991. PESC '91 Record., 22nd Annual IEEE

Conference_Location

Cambridge, MA

Print_ISBN

0-7803-0090-4

Type

conf

DOI

10.1109/PESC.1991.162713

Filename

162713