Design, implementation and performance of a modular power electronic transformer (PET) for railway application

Nowadays, power electronic transformers (PETs) are under consideration in various applications since PETs offer several advantages over traditional low-frequency transformers, including reduced weight and energy saving. This paper describes the practical design and implementation of a modular PET demonstrator, which is to be installed in a test locomotive and to operate in the field. The experimental results, including the performance of the developed PET demonstrator with different operating conditions, are presented.