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Simulation study demonstrates accurate steady-state and transient performance prediction in a 4.5 kW cage induction motor, highlighting the utility of coupled finite-element modeling.
Two methods for predicting the performance of cage induction motors using finite elements are described. The first, which is suitable for steady-state analysis, uses a phase-band model for the stator together with a single slot model for the rotor. These are used in an iterative procedure to determine the components of the familiar per-phase equivalent circuit. The second method, which is suitable for transient analysis, uses a time-stepped coupled circuit model for the machine, together with magnetostatic finite-element field solutions that are used to update the circuit parameters. Both methods are illustrated by comparison between experimental and computer characteristics for a four-pole 4.5 kW motor.>
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Williamson et al. (1990) studied this question.
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