Characteristic Analysis of Permanent-Magnet Linear Eddy-Current Brake System According to Magnetization Pattern

자화패턴에 따른 영구자석 직선형 와전류 제동장치의 특성 해석

  • Published : 2003.09.01

Abstract

Permanent magnet movers with three different magnetization patterns were applied to a linear eddy current braking system. By using a two-dimensional analytical technique, this paper deals with the comparison of the design guidelines, magnetic field, required magnet volume, and force capability for three types of linear brakes. The analytical results are also verified by finite element analyses.

Keywords

References

  1. W.L. Lorimer and D. K. Lieu, 'Correlation of experimental data and three-dimensional finite element modeling of a spinning magnet array,' IEEE Trans., Magn., vol. 30, pp, 3004-3007, Step. 1994 https://doi.org/10.1109/20.312569
  2. T. W. Nehl and B. Lequesne,'Nonlinear two-dimensional finite element modeling of permanent magnet eddy current couplings and brakes,' IEEE Trans. Magri .. vol.30, pp.3000-3003, 1994 https://doi.org/10.1109/20.312568
  3. P.J. Wang, 'Analysis of eddy-current brakes for highspeed railway,' IEEE Trans. Magn., vol.34, pp. 1237-1239, 1998 https://doi.org/10.1109/20.706507
  4. A. Wallace and A. V. Jouanne, 'Comparison testing (If an adjustable speed permanent magnet coupling,' IEEE Pulp & Paper Industry Technical Conference, Altanta, June 2000 https://doi.org/10.1109/PAPCON.2000.854194
  5. S.M. Jang, S.S. Jeong, and S.D. Cha, 'The application of linear Halbach array to eddy current rail brake system,' IEEE Trans. Magn., vol.37, pp. 2627-2629, 2001 https://doi.org/10.1109/20.951256
  6. S.M. Jang, S.H. Lee, S.S. Jeong, 'Characteristic analysis of eddy-current brake system using the linear Halbach array,' IEEE. Trans. Magri. vol.38. no. 5. pp.2994-2996. 2002 https://doi.org/10.1109/TMAG.2002.803191
  7. D. Edwards, B.V. Iayawant, W.R.C. Dawson, and D.T. Wright, 'Permanent-magnet linear eddy-current brake with a non-magnetic reaction plate,' IEE Proc-Electr, Power Appl., vol.146, pp.627-631, 1999 https://doi.org/10.1049/ip-epa:19990574
  8. J. Wang, G.W. Jewell, and D. Howe, 'A general framework for the analysis and design of tubular linear permanent magnet machines,' IEEE Trans. Magn., vol.35, no. 3, pp.1986-2000, 1999 https://doi.org/10.1109/20.764898
  9. D. L. Trumper, 'Magnet arrays for synchronous machines,'in Proc. IEEE IAS 28th Annu. Meeting, pp.9-18, 1993 https://doi.org/10.1109/IAS.1993.298897
  10. D. L. Trumper, W.J. Kim, and ME. Williams, 'Design and analysis framework for linear permanent-magnet machines,' IEEE Trans. Ind. Applicat., vol.32, pp.371-379, 1996 https://doi.org/10.1109/28.491486
  11. I. Boldea and S.A.Nasar, Linear Motion Electro-magnetics Systems. New York-Wiley, 1985
  12. K. Halbach, 'Physical and optical properties of rare earth cobalt magnets,' Nucl. Inst. Method, pp.109-117, 1981 https://doi.org/10.1016/0029-554X(81)90477-8
  13. Nucl. Inst. Method Physical and optical properties of rare earth cobalt magnets K.Halbach