A MORE ACCURATE CALCULATION OF MAGNETIC LOSSES IN THE INDUCTION MOTOR

Željko Hederić; Muharem Mehmedović; Krešimir Miklošević

doi:10.37798/2009583302

Authors

Željko Hederić
Muharem Mehmedović
Krešimir Miklošević

DOI:

https://doi.org/10.37798/2009583302

Keywords:

induction motor; finite element method; hysteresis losses; pulsation losses; surface losses

Abstract

The work presents a comparison of results of the calculation of eddy current losses in the induction motor teeth by virtue of the analytical method and the finite element method. Under the assumption that sheet permeability and conductivity are constant, total eddy current losses can be calculated as the aggregate of pulsation and surface losses. Instructions are given regarding the manner of calculation of total losses in the teeth for all teeth forms, taking into consideration the suppression of flows in the sheets, flow attenuation in the teeth and the sheet and sheet package processing factors. Valuation of the analytical model of loss calculation was also made by virtue of comparison with the measurements.