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<p>In this paper, to address the time costs associated with three-dimensional (3D) analysis for permanent magnet eddy current loss (PMECL) of axial flux permanent magnet synchronous motors (AFPMs), an analysis method utilizing quasi-3D analysis is proposed. Initially, the principle and general calculation methods of the quasi-3D analysis was introduced to analyze electromagnetic performances of the AFPM; however, this approach did not account for calculating PMECL. Subsequently, cause of error in PMECL results from general post-processing of quasi-3D analysis was analyzed, leading to the proposal of a calculation method for PMECL using quasi-3D analysis. This method was then validated through comparison with 3D finite element analysis (FEA) results. Finally, the construction of the PMECL map using the proposed method demonstrated not only a good correlation with 3D FEA results but also significant reductions in time costs, thereby confirming the method’s effectiveness.</p>

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Fast Estimation of Permanent Magnet Eddy Current Loss Map for Axial Flux Permanent Magnet Synchronous Motor Using Quasi-3D Analysis

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年3月22日

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  • Ho-Jin Oh,
  • Daeseon Cheo,
  • Seon Ho Choi,
  • Seok-Won Jung,
  • Sang-Yong Jung

摘要

In this paper, to address the time costs associated with three-dimensional (3D) analysis for permanent magnet eddy current loss (PMECL) of axial flux permanent magnet synchronous motors (AFPMs), an analysis method utilizing quasi-3D analysis is proposed. Initially, the principle and general calculation methods of the quasi-3D analysis was introduced to analyze electromagnetic performances of the AFPM; however, this approach did not account for calculating PMECL. Subsequently, cause of error in PMECL results from general post-processing of quasi-3D analysis was analyzed, leading to the proposal of a calculation method for PMECL using quasi-3D analysis. This method was then validated through comparison with 3D finite element analysis (FEA) results. Finally, the construction of the PMECL map using the proposed method demonstrated not only a good correlation with 3D FEA results but also significant reductions in time costs, thereby confirming the method’s effectiveness.