Medium frequency transformer for railway traction: Soft switching converter with high voltage semi-conductors

Author

Martin, J. ; Ladoux, P. ; Chauchat, B. ; Casarin, J. ; Nicolau, S.

Author_Institution

ALSTOM Transp. P.E.A.R.L., Semeac

fYear

2008

fDate

11-13 June 2008

Firstpage

1180

Lastpage

1185

Abstract

Nowadays, in railway traction, in order to reduce the weight and the size of the input transformer, several structures using intermediate medium frequency stages are under consideration. The major problem is to reach a high switching frequency with high voltage devices. In this paper, the authors propose a soft commutated topology based on dual structure association. The switching losses are calculated considering 6.5 kV IGBTs in soft commutation mode.

Keywords

power semiconductor switches; power transformers; railways; switching convertors; traction; IGBT; frequency transformer; high-voltage semiconductors; insulated gate bipolar transistors; railway traction; soft commutated topology; soft switching converter; switching loss calculation; Circuit topology; Commutation; DC-DC power converters; Frequency conversion; Power electronics; Power transformer insulation; Pulse width modulation inverters; Rail transportation; Resonance; Switching converters; Power electronics; Power semiconductor switches; Traction motor drives;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics, Electrical Drives, Automation and Motion, 2008. SPEEDAM 2008. International Symposium on

Conference_Location

Ischia

Print_ISBN

978-1-4244-1663-9

Electronic_ISBN

978-1-4244-1664-6

Type

conf

DOI

10.1109/SPEEDHAM.2008.4581221

Filename

4581221