Title :
A two-stage AC/DC SST based on modular multilevel converterfeasible to AC railway systems
Author :
Oliveira, Demercil S. ; de A Honorio, Dalton ; Barreto, Luiz Henrique Silva Colado ; Praca, Paulo Peixoto ; Kunzea, Andreas ; Carvalho, Sandro
Author_Institution :
Dept. of Electr. Eng., Univ. Fed. do Ceara, Fortaleza, Brazil
Abstract :
This paper proposes the use of the modular multilevel converter (MMC) for ac-dc conversion using medium frequency transformers in a two-stage topology with unidirectional switches. The losses analysis of the propose converter are presented with a comparative study among others two topology well know in the literature for traction applications. The basic description of the topology and some simulation results are presented, followed by a comparative losses result.
Keywords :
power convertors; railway electrification; switches; topology; traction; transformers; AC railway systems; MMC; ac-dc conversion; medium frequency transformers; modular multilevel converter; solid-state transformers; traction applications; two-stage AC-DC SST; two-stage topology; unidirectional switches; Bridge circuits; Equations; Modulation; Power transformers; Switches; Topology; Voltage control;
Conference_Titel :
Applied Power Electronics Conference and Exposition (APEC), 2014 Twenty-Ninth Annual IEEE
Conference_Location :
Fort Worth, TX
DOI :
10.1109/APEC.2014.6803564
