The paper considers the issue of approximation of electric steel magnetizing curves, that is critical in design of electromechanical devices of different purpose. The brief overview of literature under this subject is given. Formulas for the most common approximating functions have been considered. Real magnetizing curves for steel 1411, 2013 and 3413, for which approximation was performed, are demonstrated in tabular data and graphs. Coefficients, forming a part of approximating function formulas, were found by the least square method in Mathcad mathematical software. Comparison of the considered approximating functions under the error dispersion minimum criterion has been performed. Graphs of magnetizing curves functions with the least approximation error dispersions are given. Recommendations for selection and application of approximating functions for their use in design of electric machines have been given.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Comparative analysis of approximating functions for electric steel magnetizing curves


    Contributors:

    Conference:

    INTERNATIONAL SCIENTIFIC CONFERENCE “INTERNATIONAL TRANSPORT SCIENTIFIC INNOVATION”: ITSI-2021 ; 2021 ; Moscow, Russia


    Published in:

    Publication date :

    2023-05-16


    Size :

    7 pages





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    Approximating Curves via Alpha Shapes

    Sakkalis, T. / Charitos, C. | British Library Online Contents | 1999



    Approximating Pareto Curves Using the Hyper-Ellipse

    Li, Y. / Fadel, G. / Wiecek, M. et al. | British Library Conference Proceedings | 1998


    Approximating Pareto curves using the hyper-ellipse

    Li, Yusheng / Fadel, Georges / Wiecek, Margaret | AIAA | 1998


    Approximating Polygonal Curves in Two and Three Dimensions

    Miyaoku, K. / Harada, K. | British Library Online Contents | 1998