Title :
Medium frequency transformer in resonant switching dc/dc-converters for railway applications
Author :
Hoffmann, Henry ; Piepenbreier, Bernhard
Author_Institution :
Dept. of Electr. Drives & Machines, Univ. of Erlangen-Nuremberg, Erlangen, Germany
fDate :
Aug. 30 2011-Sept. 1 2011
Abstract :
A converter system based on medium frequency dc/dc-converters can replace the conventional traction transformer saving both mass and energy. A medium-frequency-transformer design-procedure is introduced that allows a clear representation of transformers total mass and efficiency under consideration of thermal aspects. Measurements with a prototyped mf-transformer verify the calculated results.
Keywords :
DC-DC power convertors; power transformers; railways; medium-frequency-transformer design-procedure; prototyped mf-transformer; railway application; resonant switching DC-DC converter; traction transformer; Conductors; Current density; Materials; Power transformer insulation; Thermal conductivity; Transformer cores; Windings; Cooling; High voltage power converters; Soft switching; Transformer; ZCZVS converters;
Conference_Titel :
Power Electronics and Applications (EPE 2011), Proceedings of the 2011-14th European Conference on
Conference_Location :
Birmingham
Print_ISBN :
978-1-61284-167-0
Electronic_ISBN :
978-90-75815-15-3
