P. Dziwniel et al., A time-stepped 2D-3D finite element method for induction motors with skewed slots modeling, IEEE MAGNET, 35(3), 1999, pp. 1262-1265
To model an induction motor with skewed rotor bars, we propose a hybrid 3D
approach using the 2D invariant hypothesis. Our method is coupled with the
electric circuit equations for both the stator and the rotor. We take into
account the magnetic materials non-linearity. The mechanical rotation is mo
deled, using the slipping surface technique. The obtained results are compa
red with measurements and results of the 2D standard model, which was appli
ed to a similar motor but with an unskewed rotor.