Switching Frequency Limit for Soft-Switching MF Transformer System for AC-fed Traction
2005 (English)In: Proceesings of the 36th Annual IEEE Power Electronics Specialist Conference, PESC 2005, IEEE , 2005, 1678-1684 p.Conference paper (Refereed)
The migration to line side power conversion topologies comprising a medium frequency transformer in AC-fed propulsion systems may reduce size and weight of the conversion system. The switching frequency is a crucial factor affecting the viability of such a conversion system. An increased switching frequency of a mutually commutated conversion system comprising a medium frequency transformer employing soft switching is verified by single pulse measurements. A test bench to characterize standard IGBT modules under soft switching has been build and loss measurements on a 3.3 kV IGBT module are presented for hard and soft switching. A loss model of the investigated topology is developed and the maximum switching frequency for a converter equipped with the investigated module is estimated for hard and soft switching.
Place, publisher, year, edition, pages
IEEE , 2005. 1678-1684 p.
, IEEE POWER ELECTRONICS SPECIALISTS CONFERENCE RECORDS, ISSN 0275-9306
Analog to digital conversion; Electric losses; Electric network topology; Electric traction; Electric transformers
Other Electrical Engineering, Electronic Engineering, Information Engineering
Research subject Järnvägsgruppen - Elsystem
IdentifiersURN: urn:nbn:se:kth:diva-10423DOI: 10.1109/PESC.2005.1581856ISI: 000237036501109ScopusID: 2-s2.0-33847758986ISBN: 0-7803-9033-4OAI: oai:DiVA.org:kth-10423DiVA: diva2:217097
36th Annual IEEE Power Electronic Specialists Conference (PESC 05). Recife, BRAZIL. JUN 12-16, 2005
QC 201007232009-05-132009-05-132016-06-20Bibliographically approved