Transient currents and torques in wound-rotor induction-motors using the finite-element method

A.C.J. Smith, S. Williamson, J.R. Smith

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    37 Citations (Scopus)


    The authors describe a time-stepping finite-element technique for modelling transient torques and currents in a slip-ring induction motor. The method is based on a coupled fields and circuit equation approach that allows the winding inductances to be modified to account for certain three-dimensional effects. The numerical solution incorporates a moving rotor so that slotting and saturation effects can be modelled accurately. The method is verified by direct comparison with experimental results obtained from a motor subjected to a supply reconnection at speed. It is shown that the general method can be extended in a straightforward manner to accommodate cage induction motors.
    Original languageEnglish
    Pages (from-to)160-173
    Number of pages13
    JournalIEE Proceedings Electric Power Applications
    Issue number3
    Publication statusPublished - May 1990


    • finite element analysis
    • induction motors
    • rotors
    • torque
    • transients
    • computer simulation

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