Title :
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
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;
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
DOI :
10.1109/SPEEDHAM.2008.4581221
