Optimal sizing of a power electronic traction transformer for railway applications
- Resource Type
- Conference
- Authors
- Stackler, Caroline; Morel, Florent; Ladoux, Philippe; Fouineau, Alexis; Wallart, Francois; Evans, Nathan
- Source
- IECON 2018 - 44th Annual Conference of the IEEE Industrial Electronics Society. :1380-1387 Oct, 2018
- Subject
- Computing and Processing
Power, Energy and Industry Applications
Robotics and Control Systems
Signal Processing and Analysis
Transportation
Power transformer insulation
Topology
Frequency conversion
Bridge circuits
Optimization
DC-DC power converters
Switching frequency
power electronic traction transformer (PETT)
solid state transformer (SST)
AC-DC multilevel converter
railway
traction
medium frequency transformer (MFT)
optimisation
comparison
- Language
- ISSN
- 2577-1647
Many works are dedicated to power electronic transformers in order to replace line frequency transformers. These new converters offer many degrees of freedom to the designer (switching frequency, magnetic material, rated voltage for switches…). This paper presents a methodology to optimize the sizing of such power converters in order to compare different topologies for a given application. The proposed procedure maximises the efficiency of the converter under a limited volume. In this paper, the methodology is applied to compare different topologies of power electronic traction transformers (PETT) for railway applications. The considered case is a 2 MW converter supplied by a 25 kV-50 Hz catenary. The procedure is illustrated in simulation on a converter with 3.3 kV SiC switches. The best obtained efficiency is 98.9% with 23 medium frequency transformers (MFT) of 28.6 L each.