Constant pulse width modulation strategy for direct three-level matrix converter

Siddharth Raju, Lakshminarayanan Srivatchan, Visweshwar Chandrasekaran, Ned Mohan

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

6 Scopus citations

Abstract

A conventional matrix converter (CMC) is a direct ac-ac converter without the need for a DC bus. This paper proposes a direct three level matrix converter (DTMC) topology which is advancement to the CMC in terms of considerable reduction in THD and lower switching stresses. As opposed to CMC which allows the output line voltage to be either input line voltage or zero, the DTMC provides an extra level - the input phase voltage, to be available by tapping into input filter neutral. A novel constant pulse width modulation (CPWM) strategy is proposed for the DTMC by decoupling it into a fictitious multi level converter and a conventional inverter. A comparative study between CMC and DTMC has been presented by means of numerical simulation results that have been verified on a laboratory hardware prototype.

Original languageEnglish (US)
Title of host publicationPEDES 2012 - IEEE International Conference on Power Electronics, Drives and Energy Systems
DOIs
StatePublished - 2012
Event2012 IEEE International Conference on Power Electronics, Drives and Energy Systems, PEDES 2012 - Bengaluru, Karnataka, India
Duration: Dec 16 2012Dec 19 2012

Publication series

NamePEDES 2012 - IEEE International Conference on Power Electronics, Drives and Energy Systems

Other

Other2012 IEEE International Conference on Power Electronics, Drives and Energy Systems, PEDES 2012
CountryIndia
CityBengaluru, Karnataka
Period12/16/1212/19/12

Keywords

  • direct space vector modulation and multi level converter
  • matrix converter

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