Slip frequency approach^*

The slip frequency approach is used to model working regimes of the induction motors. In induction motors the stator winding generates the rotating magnetic field with angular velocity ω1. The rotor rotates with angular velocity ω2 < ω1. This can be modelled as a motionless rotor placed in a rotating magnetic field with the angular velocity ω1-ω2.

This equivalent model can be simulated by AC magnetic module of QuickField. All you need is to specify the slipping frequency in the stator winding currents.

The picture of torque vs. slipping frequency of AC motor.

The slipping frequency approach does not allow the calculation of the eddy currents in the stator.

• Slip frequency approach in the recorded webinar:
  QuickField Analysis for Electric machines design.
• Additional links on this subject: Induction motor from Wikipedia, the free encyclopedia.

^*We do not guarantee that articles in the section "Glossary" are full and exact, and may be used as a reference of any kind. In fact - they are not! These are just informal hints, letting the students and amateurs better understand what is the specific term about. Experts should not read it at all! However, we will appreciate all expert recommendations about improving and extending our glossary.