New research on AC-AC converters without intermediate storage and their applications in power-electronic transformers and AC drives

Krushna Keshab Mohapatra, Ranjan Gupta, Satish Thuta, Apurva Somani, Amod Umarikar, Kaushik Basu, Ned Mohan

Research output: Contribution to journalArticle

7 Scopus citations

Abstract

AC-AC converters (e.g. matrix converters) are mostly semiconductor solutions for applications where intermediate energy storage is eliminated. This paper summarizes the research done and being carried out at the University of Minnesota for applications in motor drives and power-electronic transformers with advanced features. This paper presents a carrier-based modulation method for matrix converters and its application during for both input unbalance and output over-modulation. Various topologies of matrix converter are described for both drives and power-electronic transformers. These topologies have some inherent benefits like common-mode voltage elimination across the bearings of the motor/generator and controllable power factor at the input side. Some of the described technologies require open-ended machines as load and thereby some advantages like enhanced output voltage (1.5 times the output of normal three terminal load) are achieved.

Original languageEnglish (US)
Pages (from-to)591-601
Number of pages11
JournalIEEJ Transactions on Electrical and Electronic Engineering
Volume4
Issue number5
DOIs
StatePublished - Sep 2009

Keywords

  • High frequency transformer
  • Matrix converter
  • Open-ended motor drive
  • PEBB
  • Power factor control

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