| Title |
Design and Performance Analysis of Axial Flux Permanent Magnet Type Electric Motor for Underwater Vehicle Considering Halbach Array |
| Authors |
홍도관(Do-Kwan Hong) ; 이재길(Jae-Gil Lee) ; 정연호(Yeon-Ho Jeong) ; 김광덕(Kwang-Deok Kim) ; 박일환(Il-Hwan Park) |
| DOI |
https://doi.org/10.5370/KIEE.2025.74.3.432 |
| Keywords |
Anisotrophy material; CoFe material; Non-Halbach/Halbach array; SSDR type AFPM |
| Abstract |
This study presents a design and analysis of 00kW AFPM (Axial Flux Permanent Magnet) motor for a direct-drive electric propulsion system of an underwater vehicle. In order to secure redundancy in a fault situation, the combination of the number of pole and slots that can be implemented in 3-phase/6-phase was selected. Then the electromagnetic performance according to the outer diameter of the motor and the battery voltage, various electrical steel properties (isotropic, anisotropic, cobalt steel), and the application of Halbach array of permanent magnets were compared and analyzed through 3-D electromagnetic analysis. Consequently, the design combination of outer diameter, electrical steel, and Halbach array with the high performances satisfying the required conditions was adopted. Finally, the characteristic variations according to the overhang of the permanent magnets and rotor core in radial direction were presented. |