Small-signal modeling of mutual saturation in induction machines

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Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date
2010-05-18
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Mcode
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Language
en
Pages
965-973
Series
IEEE Transactions on Industry Applications, Volume 46, issue 3
Abstract
A small-signal model is derived for saturated induction machines. Inductances are allowed to saturate as a function of their own current (or flux), and the mutual saturation effect originating mainly from skewed or closed rotor slots is also included in the model. The model fulfills the reciprocity conditions, and it can be applied to parameter identification and to the analysis and development of flux-angle estimation methods. As application examples, the parameters of a 2.2-kW induction machine were identified using the data obtained from time-stepping finite-element analysis and locked-rotor measurements. The proposed model fits well to the data, and the fitted parameters are physically reasonable.
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Keywords
closed slots, induction motors, magnetic saturation, motor models, reciprocity, rotor skew, signal injection
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Citation
Hinkkanen , M , Repo , A-K , Ranta , M & Luomi , J 2010 , ' Small-signal modeling of mutual saturation in induction machines ' , IEEE Transactions on Industry Applications , vol. 46 , no. 3 , pp. 965-973 . https://doi.org/10.1109/TIA.2010.2046290