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A Topology Study for the Application of Magnetic Geared Motor as Traction for Urban Railway Vehicle

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Abstract

This paper is a comparative analysis study on topologies of magnetic geared motors for the application of railway vehicle traction systems. The magnetic geared motor (MGM) is a system in which a magnetic gear and a permanent magnet synchronous motor (PMSM) are mechanically combined, and it consists of a dual rotor that rotates at different speeds. Due to these characteristics, it has the advantages of high-power density and lightweight compared to the existing traction system. However, since the input/output relationship and electromagnetic field characteristics of this motor are completely different depending on topology, it is important to select an appropriate topology according to the application. Recently, some studies have been conducted to reflect this in industry or electric vehicles, but there is no study as a traction motor for urban railway vehicles. Therefore, in this paper, the FEM model was presented by selecting the MGM topology suitable for railway vehicles. Also, it was verified through a miniature model experiment for the corresponding topology.

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Acknowledgements

This work is supported by the Korea Agency for Infrastructure Technology Advancement (KAIA) grant funded by the Ministry of Land, Infrastructure and Transport (22RSCD-A163330-03) and by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MIST). (No.2021R1F1A1064291)

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Authors and Affiliations

  1. Department of Electrical Engineering, Hanyang Univerity, Seoul, Korea

    Ik-Hyun Jo, Ju Lee & Seong-Hwi Kim

  2. School of Railroad Engineering, Korea National University of Transportation, Uiwang, Korea

    Hyung-Woo Lee, Jae-Bum Lee & Jae-Hyeon Lim

  3. Department of Railroad Operation System Engineering, Korea National University of Transportation, Uiwang, Korea

    Chan-Bae Park

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  1. Ik-Hyun Jo
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  2. Ju Lee
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  3. Hyung-Woo Lee
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  4. Jae-Bum Lee
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  5. Jae-Hyeon Lim
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  6. Seong-Hwi Kim
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  7. Chan-Bae Park
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Correspondence to Chan-Bae Park.

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Jo, IH., Lee, J., Lee, HW. et al. A Topology Study for the Application of Magnetic Geared Motor as Traction for Urban Railway Vehicle. J. Electr. Eng. Technol. 18, 4473–4479 (2023). https://doi.org/10.1007/s42835-023-01397-z

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  • DOI: https://doi.org/10.1007/s42835-023-01397-z

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