Postfault operation of five-phase induction machine with minimum total losses under aingle open-phase fault

Abdullah Shawier, Ayman Samy Abdel-Khalik, Ragi A. Hamdy, Khaled H. Ahmed, Shehab Ahmed

Research output: Contribution to journalArticle

Abstract

Five-phase induction machines (FPIM) have attracted notable interest in safety critical applications as well as wind energy generation systems. This is largely due to their additional degrees of freedom that retain the machine starting/running steadily under fault conditions. In the available literature, postfault operation of multiphase machines is typically implemented using two techniques: minimum losses (ML) or maximum torque per ampere (MT) strategies. The optimization embedded into the control strategy, however, mostly addresses minimization of the stator copper loss, while the effect of the rotor loss and core loss are discarded in the optimal current calculation. This paper revisits postfault operation of the FPIM under single open phase fault (1OPF) by including the effect of both rotor loss and core loss on the machine’s optimal current calculation over the full achievable loading range. The proposed searching algorithm, which combines the advantages of both MT and ML techniques, attempts to minimize the total machine losses induced by the current components of both the fundamental 훼B and the secondary 푥y subspaces. The theoretical findings have been experimentally validated using a 1.5Hp five-phase prototype system.
Original languageEnglish
Number of pages11
JournalIEEE Access
Early online date9 Nov 2020
DOIs
Publication statusE-pub ahead of print - 9 Nov 2020

Keywords

  • five phase induction machine
  • post fault operation
  • minimum copper losses
  • core losses
  • open phase fault
  • rotor losses
  • open phase

Fingerprint Dive into the research topics of 'Postfault operation of five-phase induction machine with minimum total losses under aingle open-phase fault'. Together they form a unique fingerprint.

Cite this