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Two-Step Method for Identification of Nonlinear Model of Induction Machine

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4 Author(s)
Wamkeue, R. ; Univ. du Quebec, Rouyn-Noranda ; Aguglia, D. ; Lakehal, M. ; Viarouge, P.

A two-step method is applied for parameter identification of a saturated electromechanical model of an induction machine (IM). The k-factor cross saturation technique is used to account for iron saturation. Balanced and unbalanced short-circuits armature current waveforms of this machine are less sensitive to variations in the mechanical parameters. Conversely, any change in these parameters has a strong impact on the start-up test. Accordingly, in the proposed estimation method, the online double-line-to-neutral short-circuit test is performed to estimate the electrical parameters of the machine and the results obtained are then used to compute the mechanical parameters from the starting test. The good agreement of the estimated results with actual data attests to the effectiveness and suitability of the proposed algorithm in computing the electromechanical parameters of these machines.

Published in:

Energy Conversion, IEEE Transactions on  (Volume:22 ,  Issue: 4 )