ALG_012

Objective

Validation objective
Topology SCIM
Model Types
Quantities harmonic analysis
Geometry Internal rotor
Semi-closed slots
Winding Double Layer Distributed windings

This article validation the harmonic analysis method on a squirrel cage induction machine.

Machine

Manatee model for SCIM_008
Manatee model for SCIM_008

Results

Harmonic analysis on a squirrel cage induction machine
Harmonic analysis on a squirrel cage induction machine

One can observe that even when removing slotting effect (constant airgap permeance) a strong resonance still occurs. This is due to the fact that a radial force of wavenumber 2=Zs-Zr-2p is created both by slotting effects and by stepped magnetomotive force harmonics. The resonance is here cancelled where removing both slotting effects (constant magnetic airgap) and coil discretization effects (sinusoidal stator magnetomotive force).

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