Generalized duty-ratio-based pulsewidth modulation technique for a three-to-k phase matrix converter

Sk Moin Ahmed, Atif Iqbal, Haitham Abu-Rub

Research output: Contribution to journalArticle

48 Citations (Scopus)


This paper presents a novel topology for a direct ac-ac power converter, called as the three-to- k phase matrix converter. The input to the proposed matrix converter configuration is a three-phase fixed voltage and a fixed frequency supply from the grid. The output is a variable voltage and variable frequency ac supply of any number of phases ( k phase). However, the discussion is limited here for a k that is equal to odd number of phases. As an example, a three-to-five phase matrix converter is utilized for discussion and analysis. This paper also proposes two pulsewidth modulation (PWM) control techniques for the general topology of the three-to- k phase matrix converter. This is based on the so-called direct duty ratio PWM (DPWM). In one presented technique, the output voltage is limited to one half of the input voltage. For the other proposed scheme, the output voltage is enhanced to 78.86% of the input voltage. The proposed control algorithm is validated using simulation and an experimental approach.

Original languageEnglish
Article number5661834
Pages (from-to)3925-3937
Number of pages13
JournalIEEE Transactions on Industrial Electronics
Issue number9
Publication statusPublished - Sep 2011



  • AC-AC power conversion
  • direct duty ratio
  • multiphase
  • pulsewidth modulation (PWM)

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Computer Science Applications
  • Electrical and Electronic Engineering

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