Investigation of a high power three-level quasi-resonant DC-link voltage source inverter

Author

Brückner, T. ; Bernet, S.

Author_Institution

Tech. Univ. Dresden, Germany

Volume

2

fYear

2000

fDate

6/22/1905 12:00:00 AM

Firstpage

1015

Abstract

The paper investigates the feasibility of a quasi-resonant DC-link soft switching principle for voltage source inverters (VSI) in the megawatt power range. An evaluation of a three-level quasi-resonant DC-Link VSI (3L-QRDCLVSI) featuring IGCTs and a comparison to a commercially available three-level IGCT-VSI is presented. Extensive loss measurements of IGCTs under hard and soft switching conditions are the basis for the design and the comparison of the inverters. Beside converter losses other important aspects like control, protection and reliability are addressed

Keywords

commutation; invertors; loss measurement; resonant power convertors; switching circuits; thyristors; IGCT; control; converter losses; hard switching conditions; high power three-level quasi-resonant DC-link voltage source inverter; integrated gate commutated thyristors; loss measurements; megawatt power range; protection; reliability; soft switching conditions; soft switching principle; three-level quasi-resonant DC-Link VSI; voltage source inverters; Filters; Insulated gate bipolar transistors; Medium voltage; Protection; Resonance; Resonant inverters; Switching frequency; Thyristors; Voltage control; Zero voltage switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Power Electronics Conference and Exposition, 2000. APEC 2000. Fifteenth Annual IEEE

Conference_Location

New Orleans, LA

Print_ISBN

0-7803-5864-3

Type

conf

DOI

10.1109/APEC.2000.822813

Filename

822813