A TWO-STAGE AC/DC SST BASED ON MODULAR MULTILEVEL CONVERTER

被引：0

作者：

Demercil, S. O., Jr. ^{[1
]}

Praca, Paulo P. ^{[1
]}

Barreto, Luiz Henrique S. C. ^{[1
]}

Silva, Bruno Almeida ^{[1
]}

Oliveira, Herminio M. ^{[1
]}

Honorio, Dalton A. ^{[1
]}

机构：

[1] Univ Fed Ceara, Elect Engn Dept DEE CT, Fortaleza, Ceara, Brazil

来源：

2013 BRAZILIAN POWER ELECTRONICS CONFERENCE (COBEP) | 2013年

关键词：

solid-state transformers; dc distribution systems; medium frequency power transformer;

D O I：

暂无

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

This paper proposes the use of the modular multilevel converter (MMC) in ac-dc conversion using medium frequency transformers in a two-stage topology with unidirectional switches. The medium frequency link provided by each module of the MMC is used to supply the windings of the transformer. A full-bridge rectifier connected to the dc side supplies the secondary side as the power flow is controlled by the phase-shift angle between the primary and secondary voltages. The resulting topology is fault tolerant since a short-circuit in the dc side causes low additional stress in the semiconductors. The basic description and some simulation results are presented in order to valid the proposal.

引用

页码：254 / 258

页数：5

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