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Improvement of Torque Characteristics of a Rotatory Two-phase Transverse Flux Machine Optimizing the Shape of Rotor Pole

자석 형상 최적화를 통한 축방향 이상 횡자속형 전동기의 토크 특성 향상에 관한 연구

  • 안희태 (한양대학교 대학원 기계공학과) ;
  • 장건희 (한양대학교 기계공학부)
  • Published : 2009.10.20

Abstract

Transverse flux machine(TFM) has been developed to drive a machine of large input power at low-speed. However, it has complicated structure and large torque ripple due to its inherent structure. In this paper the characteristics of torque of a rotatory two-phase TFM are analyzed by using the 3-dimensional finite element method and optimal design. This research shows that one of the effective design variables is the skew angle of permanent magnet. The skew angles of permanent magnet are optimized by using a genetic algorithm. It also shows that the proposed optimal skew magnet not only increases average torque but also decreases torque ripple of a rotatory two-phase TFM.

Keywords

References

  1. Ahn, H. T., Jang, G. H., Chang, J. H., Jeong, S. W. and Kang, D. H., 2008, “Reduction of the Torque ripple and Magnetic Force of a Rotatory two-phase Transverse Flux Machine Using Herringbone Teeth,” IEEE Trans. Magn., Vol. 44, No.11, pp. 4066-4069 https://doi.org/10.1109/TMAG.2008.2001586
  2. Kang, D. H. and Jeong, Y. H., 2001, “A Study on the Design of Transverse Flux Linear Motor with High Power Density,” IEEE International Symposium on Industrial Electronics(ISIE), Vol. 2, pp. 707-711 https://doi.org/10.1109/ISIE.2001.931552
  3. Jang, G. H., Park, N. K., Lee, C. I., Chang, J. H., Jeong, S. W. and Kang, D. H., 2008, “Reduction of the Unbalanced Magnetic Force of a Transverse Flux Machine by Using Symmetric Multi-pair Cores,” Journal of Applied Physics, Vol. 103, pp. 07F104-1-07F104-3 https://doi.org/10.1063/1.2830636
  4. Erich Schmit, 2005, “3D Finite Element Analysis of the Cogging Torque of a Transverse Flux Machine,” IEEE Trans. Magn., Vol. 41, No. 5, pp. 1836-1839 https://doi.org/10.1109/TMAG.2005.846465
  5. Maddison, C. P., Mecrow, B. C. and Jack, A. G, 1998, “Claw Pole Geometries for High Performance Transverse Flux Machines,” Proceedings of International Conference on Electrical Machines, Vol. 1, pp. 340-345
  6. Masmoudi, A., Njeh, A. and Elantably, A., 2005, “On the Analysis and Reduction of the Cogging Torque of a Claw Pole Transverse Flux Permanent Magnet Machine,” European Transactions on Electrical Power, Vol. 15, pp. 513-526 https://doi.org/10.1002/etep.100
  7. Lee, J. H., Lee, S. W. and Park, K. W., 2005, “Global Shape Optimization of Airfoil Using Multi-objective Genetic Algorithm,” Trans. of the KSME (B), Vol. 29, No.10, pp.1163-1171 https://doi.org/10.3795/KSME-B.2005.29.10.1163