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Practical Verification of the Approximation Method of the Influence of Guillotine and Laser Cutting and Core Dimensions on Losses and Magnetization of Induction Motor Cores

Author

Listed:
  • 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)

Abstract

Induction motors are a significant consumer of electricity. One of the crucial elements of losses in an induction motor is core losses. Core losses become dominant in motors powered by an inverter at higher frequencies. The core sheet loss depends on cutting the core using a die or laser. The article presents a practical method for approximating loss characteristics, enabling the determination of losses with high accuracy and the approximation of the magnetization characteristic. The method’s accuracy was verified using sheet metal samples cut with both a guillotine and a laser. The method is an area method; therefore, it is well-suited for use in analytical methods and calculations of power losses based on FEM (Finite Element Method) post-processing. Then, the developed approximations were used to calculate losses in sample induction motors of different powers. The results indicate that the developed method is accurate, making it a viable alternative to the approximate correction factor.

Suggested Citation

  • Maria Dems & Krzysztof Komeza, 2025. "Practical Verification of the Approximation Method of the Influence of Guillotine and Laser Cutting and Core Dimensions on Losses and Magnetization of Induction Motor Cores," Energies, MDPI, vol. 18(18), pages 1-19, September.
    • Handle: RePEc:gam:jeners:v:18:y:2025:i:18:p:4862-:d:1748396
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    References listed on IDEAS

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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.
    2. Farshid Mahmouditabar & Nick Baker, 2023. "A Review on the Effect of Electrical Steel Manufacturing Processes on the Performance of Electric Machines," Energies, MDPI, vol. 16(24), pages 1-31, December.
    3. 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.
    4. Zbigniew Gmyrek, 2021. "Impact of a Punching Process on the SyRM Iron Loss: SPICE Model as an Effective Tool for Iron Loss Modeling," Energies, MDPI, vol. 14(21), pages 1-19, November.
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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.
    2. Maria Dems & Zbigniew Gmyrek & Krzysztof Komeza, 2023. "The Influence of Cutting Technology on Magnetic Properties of Non-Oriented Electrical Steel—Review State of the Art," Energies, MDPI, vol. 16(11), pages 1-26, May.

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