A Study of Unbalanced Magnetic Pull in Brushless Doubly Fed Machines

Salman Abdi Jalebi, Ehsan Abdi, Richard McMahon

    Research output: Contribution to journalArticlepeer-review

    20 Citations (Scopus)
    103 Downloads (Pure)


    This paper studies the unbalanced magnetic pull in the brushless doubly fed machine (BDFM) caused by both static and dynamic rotor eccentricities. Several parallel winding designs for the two stator windings are proposed, and the practicality of such designs is discussed with respect to direct coupling between the stator windings and with rotor undesirable harmonic fields. Once practical parallel winding designs are established, their effects on reducing deflection as a result of static and dynamic eccentricities are shown and compared with series wound stator. This study has been carried out on a prototype D400 250-kW BDFM.
    Original languageEnglish
    Pages (from-to)1218-1227
    Number of pages10
    JournalIEEE Transactions on Energy Conversion
    Issue number3
    Publication statusPublished - Sept 2015

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    • Rotors,
    • Stator windings
    • Coils
    • Windings
    • Iron
    • Force


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