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Performance Comparison of Coreless PCB AFPM Topologies for Duct Fan

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  • Seung-Hoon Ko

    (Department of Next Generation Smart Energy System Convergence, Gachon University, Seongnam 13120, Republic of Korea)

  • Min-Ki Hong

    (Department of Electrical Engineering, Hanyang University, Seoul 04763, Republic of Korea)

  • Na-Rim Jo

    (Department of Next Generation Smart Energy System Convergence, Gachon University, Seongnam 13120, Republic of Korea)

  • Ye-Seo Lee

    (Department of Next Generation Smart Energy System Convergence, Gachon University, Seongnam 13120, Republic of Korea)

  • Won-Ho Kim

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

Abstract

Duct fan motors must provide high torque within limited space to maintain airflow while requiring low vibration characteristics to minimize fluid resistance caused by fan oscillation. Axial Flux Permanent Magnet Motor (AFPM) offers higher torque performance than Radial Flux Permanent Magnet Motor (RFPM) due to their large radial and short axial dimensions. In particular, the coreless AFPM structure enables superior low-vibration performance. Conventional AFPM typically employs a core-type stator, which presents manufacturing difficulties. In core-type AFPM, applying a multi-stator configuration linearly increases winding takt time in proportion to the number of stators. Conversely, a Printed Circuit Board (PCB) stator AFPM significantly reduces stator production time, making it favorable for implementing multi-stator topologies. The use of multi-stator structures enables various topological configurations depending on (1) stator placement, (2) magnetization pattern of permanent magnets, and (3) rotor arrangement—each offering specific advantages. This study evaluates and analyzes the performance of different topologies based on efficient arrangements of magnets and stators, aiming to identify the optimal structure for duct fan applications. The validity of the proposed approach and design was verified through three-dimensional finite element analysis (FEA).

Suggested Citation

  • Seung-Hoon Ko & Min-Ki Hong & Na-Rim Jo & Ye-Seo Lee & Won-Ho Kim, 2025. "Performance Comparison of Coreless PCB AFPM Topologies for Duct Fan," Energies, MDPI, vol. 18(17), pages 1-16, August.
    • Handle: RePEc:gam:jeners:v:18:y:2025:i:17:p:4600-:d:1737751
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    References listed on IDEAS

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    1. Do-Hyeon Choi & Hyung-Sub Han & Min-Ki Hong & Dong-Hoon Jung & Won-Ho Kim, 2025. "Design for Loss Reduction in a Compact AFPM Electric Water Pump with a PCB Motor," Energies, MDPI, vol. 18(10), pages 1-20, May.
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