SLOT HARMONICS IN CAGE MOTORS DUE TO SATURATION OF A MAIN MAGNETIC CIRCUIT
DOI:
https://doi.org/10.46243/jst.2023.v8.i03.pp32-33Keywords:
.Abstract
This study discusses how saturation of the main magnetic circuit by the fundamental MMF harmonic affects the Fourier spectra of phase currents in cage motors. The concept of a magnetic current's equivalent is used. As a result, we can understand when and why new bars form in stator current spectra by taking into account the effect of all currents on the permeability of the main magnetic circuit. Measurements corroborate the conclusions of our thinking.