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Electrotechnical and Computer Engineering

Vol. 40 No. 10 (2025): Proceedings of the Faculty of Technical Sciences

IMPACT OF SATURATION ON THE INDUCTANCES OF A PERMANENT MAGNET SYNCHRONOUS MACHINE

  • Miljana Naumov
  • Dejan Jerkan
DOI:
https://doi.org/10.24867/32BE6Naumov
Submitted
October 18, 2025
Published
2026-01-02

Abstract

The paper addresses the linear magnetic model of a permanent magnet synchronous machine and highlights its shortcomings. Then, a nonlinear magnetic model is presented, where the inductances are not constant values but depend on the current, and in more detailed analyses, mutual inductances are also considered. These inductance values are obtained using the frozen permeability method, which is implemented within numerical FEA simulations. The results of the mentioned simulations are provided at the end of the paper. 

References

  1. [1] Nicola Bianchi, Silverio Bologani, “Magnetic Models of Saturated Interior Permanent Magnet Motors based on Finite Element Analysis“
  2. [2] Mladen Vučković, “Nonlinear Magnetic Model of IPMSM based on the Frozen Permeability Technique utilized in improved MTPA control”, 2024
  3. [3] Dejan G. Jerkan, Marko A. Gecić, “IPMSM inductances calculation using FEA“
  4. [4] Dejan G. Jerkan, “Dinamički model trofazne kavezne asinhrone mašine zasnovan na metodi konačnih elemenata”
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