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Accounting for Magnetic Saturation Effects in Complex Multi-harmonic Model of Induction Machine

Author

Listed:
  • Tomasz Garbiec

    (The Faculty of Electrical Engineering, Automatic Control and Informatics, Opole University of Technology, 45–758 Opole, Poland)

  • Mariusz Jagiela

    (The Faculty of Electrical Engineering, Automatic Control and Informatics, Opole University of Technology, 45–758 Opole, Poland)

Abstract

Computations of quasi-dynamic electromagnetic field of induction machines using the complex magnetic vector potential require the use of the so-called effective magnetization curves, i.e., such in which the magnetic permeability is proportional to the amplitudes of magnetic flux density B or magnetic field strength H , not their instantaneous values. There are several definitions of that parameter mentioned in the literature provided for the case when B or H are monoharmonic. In this paper, seven different methods of determining the effective magnetization curves are compared in relation to the use of a field-circuit multi-harmonic model of an induction machine. The accuracy of each method was assessed by computing the performance characteristics of a solid-rotor induction machine. One new definition of the effective permeability was also introduced, being a function of multiple variables dependent on amplitudes of all the harmonics considered. The analyses demonstrated that the best practical approach, even for the multi-harmonic case, is to express the effective magnetic permeability as the ratio of the amplitudes of the fundamental harmonics of the magnetic flux density and the magnetic field strength, and assuming the sinusoidal variation of the latter.

Suggested Citation

  • Tomasz Garbiec & Mariusz Jagiela, 2020. "Accounting for Magnetic Saturation Effects in Complex Multi-harmonic Model of Induction Machine," Energies, MDPI, vol. 13(18), pages 1-12, September.
  • Handle: RePEc:gam:jeners:v:13:y:2020:i:18:p:4670-:d:410477
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    Citations

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    Cited by:

    1. Tomasz Garbiec & Mariusz Jagiela, 2021. "Accounting for Slot Harmonics and Nonsinusoidal Unbalanced Voltage Supply in High-Speed Solid-Rotor Induction Motor Using Complex Multi-Harmonic Finite Element Analysis," Energies, MDPI, vol. 14(17), pages 1-13, August.
    2. Anouar Belahcen & Armando Pires & Vitor Fernão Pires, 2023. "Magnetic Material Modelling of Electrical Machines," Energies, MDPI, vol. 16(2), pages 1-3, January.

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