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Magnetization Control of Permanent Magnets and Induction Measurements Optimization Taking into Account Hysteresis

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Abstract

A method for determining the magnetization of permanent magnets based on the known distribution of the magnetic field in the surrounding space is proposed, which enables taking into account the presence of soft magnetic ferromagnetic materials with known characteristics. The proposed approach is based on the use of the corresponding integral equation of magnetostatics. In the mathematical model of the magnetic field, we have considered the hysteresis effect of the frame material of an electrical device on the results of solving the inverse problem of permanent magnets magnetization identifying. The basic magnetization curve is calculated using the Langevin formula, and the hysteresis loop is determined using the selected range of the magnetic field strength values in accordance with the Giles–Atherton model. The results can also be used in solving the inverse problem for a system of ferromagnetic bodies and in test problems when using other methods. The optimization of coordinates of the induction measurement points has been carried out.

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REFERENCES

  1. Denisov, P.A., Solution of direct and inverse problems of magnetic field analysis of electrical devices with permanent magnets during their local demagnetization, Cand. Sci. (Eng.) Dissertation, Novocherkassk, 2016.

  2. Arutyunyan, R.V., Nekrasov, S.A., and Seredina, P.B., Methods for the identification of the magnetization of the permanent magnets on the basis of integral equations: research and application, Izv. Vyssh. Uchebn. Zaved., Elektromekh., 2019, vol. 62, no. 1.

  3. Denisov, P.A., Description of the hysteresis loop with the use of explicit expressions for the Jiles-Atherton second-level model, Izv. Vyssh. Uchebn. Zaved., Elektromekh., 2018, vol. 61, no. 1.

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Funding

This work was supported by the Russian Foundation for Basic Research, project no. 18-01-00294(a).

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Authors and Affiliations

  1. Platov South Russian State Polytechnic University, Novocherkassk, Russia

    P. A. Denisov & S. A. Nekrasov

Authors
  1. P. A. Denisov
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  2. S. A. Nekrasov
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Correspondence to P. A. Denisov.

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The authors declare that they have no conflict of interest.

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Translated by G. Dedkov

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Denisov, P.A., Nekrasov, S.A. Magnetization Control of Permanent Magnets and Induction Measurements Optimization Taking into Account Hysteresis. Russ. Electr. Engin. 91, 408–411 (2020). https://doi.org/10.3103/S1068371220060036

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  • DOI: https://doi.org/10.3103/S1068371220060036

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