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Design of Low-Cost Synchronous Machine to Prevent Demagnetization

Author

Listed:
  • Claudio Bianchini

    (Department of Engineering “Enzo Ferrari” (DIEF), University of Modena and Reggio Emilia, 41125 Modena (MO), Italy)

  • Ambra Torreggiani

    (Department of Engineering “Enzo Ferrari” (DIEF), University of Modena and Reggio Emilia, 41125 Modena (MO), Italy)

  • Matteo Davoli

    (Raw Power Srl, Via Sicilia 31, 42122 Reggio Emilia (RE), Italy)

  • Alberto Bellini

    (Department of Electrical, Electronic, and Information Engineering “Guglielmo Marconi” (DEI), University of Bologna, 47521 Cesena (FC), Italy)

Abstract

The request for high efficiency motor paves the way for the replacement of induction motors with permanent magnet synchronous motors. Although the efficiency is increased, for medium and high power, the current ripple causes significant additional losses in the magnet and lamination; and, high temperature can lead to demagnetization. In this paper, a new rotor topology is proposed and compared to a traditional surface permanent magnet rotor to reduce the magnet losses and protect them from demagnetization. A reference surface permanent magnet machine is compared with the proposed one in terms of performance and magnet losses. Both analytical and experimental analysis are carried out and discussed.

Suggested Citation

  • Claudio Bianchini & Ambra Torreggiani & Matteo Davoli & Alberto Bellini, 2020. "Design of Low-Cost Synchronous Machine to Prevent Demagnetization," Energies, MDPI, vol. 13(14), pages 1-15, July.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:14:p:3566-:d:382949
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    Citations

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    Cited by:

    1. Syidy Ab Rasid & Konstantinos N. Gyftakis & Markus Mueller, 2023. "Comparative Investigation of Three Diagnostic Methods Applied to Direct-Drive Permanent Magnet Machines Suffering from Demagnetization," Energies, MDPI, vol. 16(6), pages 1-18, March.

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