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A Study on Core Skew Considering Manufacturability of Double-Layer Spoke-Type PMSM

Author

Listed:
  • Dong-Woo Nam

    (Department of Electrical Engineering, Gachon University, Seongnam 13120, Korea)

  • Kang-Been Lee

    (Hyundai & Kia Motors Namyang Institute, Hwaseong 18280, Korea)

  • Hyun-Jo Pyo

    (Department of Electrical Engineering, Gachon University, Seongnam 13120, Korea)

  • Min-Jae Jeong

    (Department of Electrical Engineering, Gachon University, Seongnam 13120, Korea)

  • Seo-Hee Yang

    (Department of Electrical Engineering, Gachon University, Seongnam 13120, Korea)

  • Won-Ho Kim

    (Department of Electrical Engineering, Gachon University, Seongnam 13120, Korea)

  • Hyung-Kwan Jang

    (Department of Electrical Engineering, Hanyang University, Seoul 14763, Korea)

Abstract

The spoke-type permanent magnet synchronous motor (PMSM), which is a general ferrite magnetic flux-concentrated motor, has a low portion of reluctance torque at the total torque magnitude. Therefore, as a way to increase the reluctance torque, there is a double-layer spoke-type PMSM that can maximize the difference in inductance between the d-axis and the q-axis. However, in the double-layer spoke-type PMSM, cogging torque, torque ripple, and total harmonic distortion (THD) increase with reluctance torque, which is the main cause of vibration and noise. In this paper, a method is proposed that provides the same effect as skew without dividing stages of the permanent magnet by dividing the core of the rotor into two types so that it is easy to manufacture according to the number of stages, unlike extant skew methods. Based on the method, the reduction in cogging torque and THD was verified by finite element analysis (FEA).

Suggested Citation

  • Dong-Woo Nam & Kang-Been Lee & Hyun-Jo Pyo & Min-Jae Jeong & Seo-Hee Yang & Won-Ho Kim & Hyung-Kwan Jang, 2021. "A Study on Core Skew Considering Manufacturability of Double-Layer Spoke-Type PMSM," Energies, MDPI, vol. 14(3), pages 1-14, January.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:3:p:610-:d:486866
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    References listed on IDEAS

    as
    1. Zbigniew Goryca & Sebastian Różowicz & Antoni Różowicz & Artur Pakosz & Marcin Leśko & Henryk Wachta, 2020. "Impact of Selected Methods of Cogging Torque Reduction in Multipolar Permanent-Magnet Machines," Energies, MDPI, vol. 13(22), pages 1-14, November.
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    Cited by:

    1. Rak-Won Son & Ju Lee, 2023. "Alternative Surface-Mounted Permanent Magnet Topology for Reducing Voltage and Torque Harmonics in Shaft Generators," Energies, MDPI, vol. 16(12), pages 1-17, June.
    2. T. A. Anuja & M. Arun Noyal Doss, 2021. "Reduction of Cogging Torque in Surface Mounted Permanent Magnet Brushless DC Motor by Adapting Rotor Magnetic Displacement," Energies, MDPI, vol. 14(10), pages 1-20, May.

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