A new option for characterizing the equivalent scheme of induction machines

The characterization of the equivalent scheme for induction machines with squirrel cage has been improved with one additional option.

The frequency analysis to compute the operational inductance - L(p) – can be based on a working point defined with the Line-Line voltage U, the power supply frequency f and the speed N.

Indeed, the magnetic permeability mapping of a motor is done at the selected working point (U, f, N).

The resulting map of permeability is then applied to the model while performing the frequency analysis. This is what known as the frozen permeability method.

This must lead to even more accurate results.