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Operation Characteristics of Adjustable Field IPMSM Utilizing Magnetic Saturation

Author

Listed:
  • Kiyohiro Iwama

    (Graduate School of Science and Technology, Shizuoka University, Hamamatsu 432-8561, Japan)

  • Toshihiko Noguchi

    (Graduate School of Science and Technology, Shizuoka University, Hamamatsu 432-8561, Japan)

Abstract

This paper describes an interior permanent magnet synchronous motor (IPMSM) based on a new adjustable field method. The proposed PM motor achieved magnetic field control utilizing magnetic saturation. In this paper, a back electromotive force (e.m.f.) measurement test and a load test using the prototype motor were conducted to clarify if the proposed motor had a wide operation range. In the back e.m.f. measurement test, it was confirmed that the proposed motor had a wide magnetic field controllable range of 51.7%. In addition, it was revealed, through the load test, that the proposed motor had a wide operating range, including both low-speed high-torque and high-speed low-torque driving conditions. Moreover, based on electromagnetic field analysis, the magnetic field control performance of the proposed adjustable field method was compared with the conventional field weakening control and other adjustable field methods. As a comparison result, it was verified that the proposed motor had less copper loss for the magnetic field control and fewer losses in the high-speed operating range.

Suggested Citation

  • Kiyohiro Iwama & Toshihiko Noguchi, 2021. "Operation Characteristics of Adjustable Field IPMSM Utilizing Magnetic Saturation," Energies, MDPI, vol. 15(1), pages 1-21, December.
    • Handle: RePEc:gam:jeners:v:15:y:2021:i:1:p:52-:d:708577
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