Title :
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
fDate :
6/22/1905 12:00:00 AM
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;
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
DOI :
10.1109/APEC.2000.822813
