Modeling of Saturation Due to Main and Leakage Flux Interaction in Induction Machines

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© 2010 Institute of Electrical & Electronics Engineers (IEEE). Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other work.
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Volume Title

School of Electrical Engineering | A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Date

2010

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Mcode

Degree programme

Language

en

Pages

937-945

Series

IEEE Transactions on Industry Applications, Volume 46, Issue 3

Abstract

Saturation due to the main flux and rotor leakage flux interaction appears in induction machines, especially if the rotor slots are skewed or closed. Conventional saturation models used in connection with dynamic equivalent-circuit models do not take this phenomenon into account. In this paper, explicit functions for modeling this mutual saturation are proposed. These functions are physically reasonable, they are easy to fit, and the number of their parameters is small. The proposed functions can be used in real-time applications and in computer simulations if high accuracy and physical consistency are preferable. The model fits well to the data obtained from finite element analysis or experimental data of a 2.2-kW motor. The model predicts the stator current with good accuracy both in steady state and in transients.

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Keywords

induction motors, motor models, mutual saturation, closed slots, rotor skew

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Citation

Tuovinen, Toni & Hinkkanen, Marko & Luomi, Jorma. 2010. Modeling of Saturation Due to Main and Leakage Flux Interaction in Induction Machines. IEEE Transactions on Industry Applications. Volume 46, Issue 3. 937-945. ISSN 0093-9994 (printed). DOI: 10.1109/tia.2010.2045210.