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Induction motor dynamic and static inductance identification using a broadband excitation technique

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4 Author(s)
A. Ganji ; Dept. ETEC, Vrije Univ., Brussels, Belgium ; P. Guillaume ; R. Pintelon ; P. Lataire

The performance of indirect vector control depends upon accurate prediction of the motor slip angular frequency (ωs) for the demand torque. The required slip gain depends upon the rotor time constant of the motor (Tr). This value varies significantly over the operating temperature range and saturation level of a typical motor. This variation, if not compensated for, results in a significant degradation in torque production from a vector control system. The saturation effect can be compensated by an adaptive flux model if precise knowledge of the induction motor magnetizing curve is available. The aim of this paper is to present the application of an advanced system identification methodology enabling the off-line estimation of the magnetizing curve (dynamic and static inductance) of induction motors

Published in:

IEEE Transactions on Energy Conversion  (Volume:13 ,  Issue: 1 )