Finite element analysis of electromagnetic torque saturation harmonics in a squirrel cage machine

Abstract

The electromagnetic torque oscillations caused by saturation harmonics in a squirrel cage machine are analysed. Special attention is paid to the most important saturation harmonic of alternating field that has three times as many poles as fundamental harmonic and three times its frequency. The operations of the machine as a motor and as a self‐excited generator have been investigated. The 2D finite element time‐stepping method has been applied to the analysis of a particular machine performance. The finite element equations are coupled with circuits equations which describe the winding connections. The skew of the rotor slots is taken into account.

Citation

Demenko, A. (1999), "Finite element analysis of electromagnetic torque saturation harmonics in a squirrel cage machine", COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, Vol. 18 No. 4, pp. 619-628. https://doi.org/10.1108/03321649910296654