Modeling of mutual saturation in induction machines

Toni Tuovinen, Marko Hinkkanen, Jorma Luomi

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

    10 Citations (Scopus)


    Mutual saturation between the main flux and the rotor leakage flux appears in induction machines, especially if the rotor slots are skewed or closed. Conventional saturation models used in connection with dynamic equivalent-circuit models do not take this phenomenon into account. In this paper, explicit functions for modeling the mutual saturation are proposed. The proposed functions are physically reasonable, they are easy to fit, and the number of their parameters is small. The proposed functions can be used in real-time applications and in computer simulations where high accuracy and physical consistency are preferable. The model fits well to the data obtained from finite element analysis or experimental data of a 2.2-kW motor.
    Original languageEnglish
    Title of host publicationIEEE Industry Applications Society Annual Meeting (IAS'08)
    Place of PublicationEdmonton, Canada
    Number of pages8
    ISBN (Electronic)978-1-4244-2279-1
    Publication statusPublished - 5 Oct 2008
    MoE publication typeA4 Article in a conference publication


    • closed slots
    • Induction motors
    • motor model
    • mutual saturation
    • rotor skew


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