Conference paper

Multilevel Converter with 2 Stage-Conversion

The use of electrical equipment in rail and ship transportation is bound to consideration on mass and size, particularly because of conventional low frequency transformers. On this paper, an optimized multilevel converter with medium frequency transformer is presented. It allows to adapt voltage from primary generators (6.6kV) to service use (440V). From a pseudo continuous model of the converter, we present a method to improve its working and to define a corresponding operating domain.


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