Effect of open stator slots on the performance of an interior permanent magnet automotive alternator

Vlatka Zivotic-Kukolj, Wen Liang Soong

    Research output: Contribution to journalArticle

    5 Citations (Scopus)

    Abstract

    This work describes a study of the effect of using open stator slots in an interior permanent magnet automotive alternator to increase its effective air gap and thus reduce its iron losses under field-weakening conditions. Analytical, finiteelement and experimental results are compared for the back-electromotive waveforms, inductance saturation/torque curves, iron loss and field-weakening performance characteristics for the alternator with both semi-closed and with open slots. It is shown for the highly saturated machine considered, that using open stator slots can reduce the field-weakening iron loss without significantly affecting the machine performance.

    Original languageEnglish
    Pages (from-to)295-302
    Number of pages8
    JournalIET Electric Power Applications
    Volume7
    Issue number4
    DOIs
    Publication statusPublished - 2013

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