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Stop model with input-dependent shape function and its identification methods

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3 Author(s)
Matsuo, T. ; Dept. of Electr. Eng., Kyoto Univ., Japan ; Terada, Y. ; Shimasaki, M.

We propose an input-dependent shape function for the stop model to remove its property of equal vertical chords regardless of dc bias. We compare several identification methods for the stop model and show that the input-dependent shape function improves the ability to represent the stop model effectively. A least-squares identification method using both symmetric and asymmetric B-H loops achieves the most precise representation of hysteretic characteristics for a silicon steel sheet. However, if only symmetric loops are available for identification, a newly proposed identification method gives more accurate representation than other methods including the least-squares method.

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Magnetics, IEEE Transactions on  (Volume:40 ,  Issue: 4 )