Numerical modeling of iron yoke levitation using the pinning effect of high-temperature superconductors

IEEE Transactions on Magnetics

Volumn 43, Issue 5, 2007, Pages 2001-2008

  Ghodsi, Mojtaba ^a   Ueno, Toshiyuki ^a   Teshima, Hidekazu ^b   Hirano, Hosei ^b   Higuchi, Toshiro ^b  

^a UNIVERSITY OF TOKYO   (Japan)

^b NIPPON STEEL CORPORATION   (Japan)

Author keywords

Analytical model; Field cooled high temperature superconductor; Finite element method (FEM); Maxwell theory; Numerical modeling; Pinning effect; Shape effect

Indexed keywords

APPROXIMATION THEORY; FERROMAGNETIC MATERIALS; FINITE ELEMENT METHOD; MATHEMATICAL MODELS; MAXWELL EQUATIONS; SUPERCONDUCTING MATERIALS;

CYLINDRICAL YOKES; IRON YOKE LEVITATION; PINNING EFFECTS; SHAPE EFFECTS;

IRON;

EID: 34247391531     PISSN: 00189464     EISSN: None     Source Type: Journal    
DOI: 10.1109/TMAG.2006.890218     Document Type: Article

References (9)

1. K. B. Y. Ma, V. Postrekhin, and W. K. Chu, "Superconductor and magnet levitation devices," Rev. Sci. Instrum., vol. 74, no. 12, pp. 4989-5017, 2003.
2. Y. Tsutsui, A. Yamamoto, and T. Higuchi, "Suspension of soft magnetic materials using high-Tc superconductors," in Proc. 1st Int. Symp. Linear Drive for Industrial Applications (LDIA), 1995, pp. 259-262.
3. J. R. Hull, E. F. Hilton, T. M. Mulcahy, Z. J. Yang, A. Lockwood, and M. Strastik, "Low friction in mixed-μ superconducting bearings," J. Appl. Phys., vol. 78, pp. 6833-6838, 1995.
4. M. Ghodsi, T. Ueno, and T. Higuchi, "Improvement of magnetic circuit in levitation system using HTS and soft magnetic material," IEEE Trans. Magn., vol. 41, no. 10, pp. 4003-005, Oct. 2005.
5. M. Ghodsi, T. Ueno, H. Teshima, H. Hirano, and T. Higuchi, "The characteristics of trapped magnetic flux inside bulk HTS in the mixed-μ levitation system," Physica C: Supercond. Appl., vol. 445-448, pp. 343-346, 2006.
6. M. Maroslav, M. Jufer, and Y. Perriard, "Reducing the cogging torque in brushless DC motors by using conformal mappings," IEEE Trans. Magn., vol. 40, no. 2, pp. 451-455, Mar. 2004.
7. Y. Fukasawa and H. Ohsaki, "Three-dimensional structure of magnetic field in the mixed-μ levitation system using bulk superconductors," IEEE Trans. Appl. Supercond., vol. 9, no. 2, pp. 980-983, Jun. 1999.
8. M. Ghodsi, T. Ueno, H. Teshima, H. Hirano, and T. Higuchi, "Examination of shape of soft magnetic material levitated by pinning effect," in 18th Symp. Electromagnetics and Dynamics, 2006, pp. 487-490.
9. A. Balakrishnan, W. T. Joines, and T. G. Wilson, "Air-gap reluctance and inductance calculations for magnetic circuits using a Schwarz-Christoffel transformation," IEEE Trans. Power Electron., vol. 12, no. 4, pp. 654-662, Jul. 1997.