Reduced order field-circuit modeling of squirrel cage induction machines for automotive applications

Abstract

Purpose

The aim of the paper is to investigate the impacts of simplifications of a reduced-order simulation model of squirrel cage induction machines (SCIMs) by numerical experiments.

Design/methodology/approach

Design of setups to isolate the main influences on the results of the reduced-order model of SCIMs. Results of time-stepping finite element calculations are used as benchmark.

Findings

Whereas neglecting eddy current effects and the assumption of a sinusoidal rotor current distribution leads to acceptable deviations in regular inverter operation, the sampling and interpolation of the machine parameters in a two-axis coordinate system considerably deteriorate the model accuracy. Using a polar coordinate system for this purpose is expected to significantly improve the model quality.

Originality/value

Preparing the ground for a successful, both fast and accurate simulation model of SCIMs as parts of electrified drivetrains.

Citation

Bíró, D., Diwoky, F. and Schmidt, E. (2022), "Reduced order field-circuit modeling of squirrel cage induction machines for automotive applications", COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, Vol. 41 No. 3, pp. 794-806. https://doi.org/10.1108/COMPEL-03-2021-0092