A 100 kVA resonant DC link inverter with GTOs-design considerations and first practical experience

Author

Schulting, L.

Author_Institution

Inst. for Power Electron. & Electr. Drives, Aachen Univ. of Technol., Germany

fYear

1992

fDate

4-9 Oct 1992

Firstpage

729

Abstract

A three-phase resonant DC link inverter (RDCLI) with a passive voltage clamp is investigated. The inverter is fed by a rectified three-phase line voltage, and the power rating is 100 kVA. Gate turn-off thyristors (GTOs) are used because of the high blocking voltage and load currents. Some restrictions of GTOs operating at high switching frequencies are discussed. Results of calculations and measurements of the GTO switching losses in the zero voltage switching mode are presented. Equations for the calculations of the values of the passive elements are derived. The principle of the current controller and first practical experiences with the RDCLI are presented

Keywords

invertors; switching circuits; thyristor applications; 100 kVA; GTOs; ZVS; blocking voltage; current controller; load currents; network synthesis; passive voltage clamp; power rating; resonant DC link inverter; switching losses; three-phase; thyristor applications; zero voltage switching; Clamps; Insulated gate bipolar transistors; Inverters; Power electronics; Resonance; Resonant frequency; Switching converters; Switching frequency; Switching loss; Zero voltage switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Society Annual Meeting, 1992., Conference Record of the 1992 IEEE

Conference_Location

Houston, TX

Print_ISBN

0-7803-0635-X

Type

conf

DOI

10.1109/IAS.1992.244324

Filename

244324