New asymmetrical cascade multicell converter based on optimized symmetrical modules

A. Kh Sadigh, V. Dargahi, S. M. Barakati

Research output: Chapter in Book/Report/Conference proceedingConference contribution

14 Scopus citations

Abstract

Due to voltage limitation of available semiconductor switches, multicell converters are required for high-power medium-voltage applications. One of the most significant types of multicell converters is cascade multicell converter categorized into symmetrical and asymmetrical ones. This paper first presents a new symmetrical cascade multicell converter in which the number of switches is optimized. An advantage of the proposed symmetrical cascade multicell converter is that the number of required switches in comparison with the conventional symmetrical cascade multicell converter is decreased 50%. Afterwards, a novel asymmetrical cascade multicell converter constructed by the proposed modules of optimized symmetrical converter is presented. The proposed topologies, both symmetrical and asymmetrical cascade multicell converters, are simulated using PSCAD/EMTDC software and simulation results are presented to validate the effectiveness and advantages of the proposed configurations as well as their control strategy.

Original languageEnglish (US)
Title of host publicationProceedings - 2012 IEEE International Symposium on Industrial Electronics, ISIE 2012
Pages408-413
Number of pages6
DOIs
Publication statusPublished - Aug 15 2012
Event21st IEEE International Symposium on Industrial Electronics, ISIE 2012 - Hangzhou, China
Duration: May 28 2012May 31 2012

Publication series

NameIEEE International Symposium on Industrial Electronics

Conference

Conference21st IEEE International Symposium on Industrial Electronics, ISIE 2012
CountryChina
CityHangzhou
Period5/28/125/31/12

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All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Control and Systems Engineering

Cite this

Sadigh, A. K., Dargahi, V., & Barakati, S. M. (2012). New asymmetrical cascade multicell converter based on optimized symmetrical modules. In Proceedings - 2012 IEEE International Symposium on Industrial Electronics, ISIE 2012 (pp. 408-413). [6237121] (IEEE International Symposium on Industrial Electronics). https://doi.org/10.1109/ISIE.2012.6237121