The Concept of Power Electronic Traction Transformer For Indian Railway

One of the most important innovation expectation in railway electrical equipment is the replacement of the on-board transformer with a high power converter. Since the transformer operates at line-frequency (i.e., 50 Hz or 16 2/3 Hz), it represents a critical component from weight point of view and, moreover, it is characterized by quite poor efficiency. High power converters for this application are characterized by a medium frequency inductive coupling and are commonly referred as Power Electronic Transformers (PET), Medium Frequency Topologies or Solid-State Transformers (SST). Many studies were carried out and various prototypes were realized until now, however, the realization of such a system has some difficulties, mainly related to the high input voltage (i.e., 25 kV for 50 Hz lines and 15 kV for 16 2/3 Hz lines) and the limited performance of available power electronic switches. The aim of this study is to present a survey on the main solutions proposed in the technical literature and, analyzing pros and cons of these studies, to introduce new possible circuit topologies for this application.

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The Concept of Power Electronic Traction Transformer For Indian Railway

Cited by 3 publications

References 8 publications

FEM Analysis of 200kVA High Frequency Transformer for Solid State Traction Converters

FEM Analysis of 200kVA High Frequency Transformer for Solid State Traction Converters

Evaluation of Short Circuit Currents Effects on Power Transformers’ Residual Service Life

Solid-State Transformers in Locomotives Fed through AC Lines: A Review and Future Developments

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