Squirrel-cage induction motor simulation

QuickField simulation example

This example is prepared by Petru Brad
Politehnica University of Timisoara
Faculty of Electrical Engineering

Engineering question
How to find magnetic field in squirrel cage induction motor

Engineering answer
Set up a plane-parallel QuickField DC Magnetics problem for a squirrel-cage induction motor and evaluate magnetic field distribution from computed field results.

Typical applications
squirrel-cage induction motors, rotor cage assemblies, industrial induction machines

• Download simulation files (files may be viewed using any QuickField Edition).

Problem Type
Plane-parallel problem of DC magnetics.

Geometry

Given
Rated power P_n=1.5 kW,
Rotating speed N_n=1390 rpm,
Voltage U_n=380 V,
Frequency f=50 Hz

Solution
Study is made on a half pole length, because of the symmetry of the machine.

The nonlinear magnetization curves of the laminations and of the shaft are given in the "Data" file. Current density in the coils (Cu1,Cu2,Cu3) is for the rated power of the motor. The model is useful for other operating points too.

Results

• View simulation report in PDF
• Download simulation files (files may be viewed using any QuickField Edition).