A novel three-phase to five-phase transformation using a special transformer connection

Atif Iqbal, Shaikh Moinuddin, M. Rizwan Khan, Sk Moin Ahmed, Haitham Abu-Rub

Research output: Contribution to journalArticle

39 Citations (Scopus)


The first five-phase induction motor drive system was proposed in the late 1970s for adjustable speed drive applications. Since then, a considerable research effort has been in place to develop commercially feasible multiphase drive systems. Since the three-phase supply is available from the grid, there is a need to develop a static phase transformation system to obtain a multiphase supply from the available three-phase supply. Thus, this paper proposes a novel transformer connection scheme to convert the three-phase grid supply to a five-phase fixed voltage and fixed frequency supply. The proposed transformer connection outputs five phases and, thus, can be used in applications requiring a five-phase supply. Currently, the five-phase motor drive is a commercially viable solution. The five-phase transmission system can be investigated further as an efficient solution for bulk power transfer. The connection scheme is elaborated by using the simulation and experimental approach to prove the viability of the implementation. The geometry of the fabricated transformer is elaborated in this paper.

Original languageEnglish
Article number5491358
Pages (from-to)1637-1644
Number of pages8
JournalIEEE Transactions on Power Delivery
Issue number3
Publication statusPublished - Jul 2010



  • Five phase
  • multiphase
  • three phase
  • transformer
  • turn ratio

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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