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The Effect of Sample’s Dimension and Cutting Technology on Magnetization and Specific Iron Losses of FeSi Laminations

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  • Maria Dems

    (Institute of Mechatronics and Information Systems, Lodz University of Technology, 90-924 Lodz, Poland)

  • Krzysztof Komeza

    (Institute of Mechatronics and Information Systems, Lodz University of Technology, 90-924 Lodz, Poland)

  • Zbigniew Gmyrek

    (Institute of Mechatronics and Information Systems, Lodz University of Technology, 90-924 Lodz, Poland)

  • Jacek Szulakowski

    (Institute of Mechatronics and Information Systems, Lodz University of Technology, 90-924 Lodz, Poland)

Abstract

The process of cutting laminations from which the cores of electric machines are built causes a change in their magnetic properties and losses, which can significantly affect machines’ parameters, mainly losses of power and efficiency. Electric motors are a significant consumer of electricity; therefore, the problem of increasing their efficiency is fundamental from the point of view of environmental impact. The subject of the work is the study of the influence of punching and laser cutting on the magnetization and loss characteristics of sheets, taking into account the phenomenon of magnetic anisotropy. For this purpose, samples cut in different directions were tested. As the direction of the field action in the motor core varies in different parts of the machine and time moments, it was investigated how to obtain average characteristics for different directions of magnetization. Then, a simplified method for determining the characteristics of punched sheets of various widths based on small-width samples and water cut samples is presented. The proposed solutions allow for refinement of the calculations of magnetic circuits with a simplified consideration of the influence of punching.

Suggested Citation

  • Maria Dems & Krzysztof Komeza & Zbigniew Gmyrek & Jacek Szulakowski, 2022. "The Effect of Sample’s Dimension and Cutting Technology on Magnetization and Specific Iron Losses of FeSi Laminations," Energies, MDPI, vol. 15(6), pages 1-22, March.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:6:p:2086-:d:769914
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    References listed on IDEAS

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    1. Maria Dems & Zbigniew Gmyrek & Krzysztof Komeza, 2021. "Analytical Model of an Induction Motor Taking into Account the Punching Process Influence on the Material Properties’ Change of Lamination," Energies, MDPI, vol. 14(9), pages 1-14, April.
    2. Elzbieta Lesniewska, 2021. "Influence of the Selection of the Core Shape and Winding Arrangement on the Accuracy of Current Transformers with Through-Going Primary Cable," Energies, MDPI, vol. 14(7), pages 1-13, March.
    3. Paul Waide & Conrad U. Brunner, 2011. "Energy-Efficiency Policy Opportunities for Electric Motor-Driven Systems," IEA Energy Papers 2011/7, OECD Publishing.
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    1. Maria Dems & Krzysztof Komeza & Jacek Szulakowski, 2023. "Practical Approximation of Sheet Losses Taking into Account the Guillotine and Laser Cutting Effect," Energies, MDPI, vol. 16(6), pages 1-23, March.

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