Advertisement

Disc Motor with Rotor Made of Aluminium or Polycrystalline High Temperature Superconductor

  • David InácioEmail author
  • João Murta Pina
  • Mário Ventim Neves
  • Alfredo Álvarez
Conference paper
Part of the IFIP Advances in Information and Communication Technology book series (IFIPAICT, volume 450)

Abstract

The discovery of the superconductivity and the understanding of electromagnetic properties of high temperature superconducting (HTS) materials allowed the optimization and development of several applications, such as electrical machines and drives. Electromechanical conversion devices based in HTS materials potentially allows for reduction in devices dimensions or performance improvement for the same active volume, when compared with their conventional ones.An axial disc motor with high temperature superconductor (HTS) material or conventional aluminium in the rotor and conventional armature has been designed and developed. This paper describes simulations and laboratory experiments performed at liquid nitrogen temperature (77 K) in order to analyze the motor’s behaviour and its electromechanical characteristics and to define an electric equivalent circuit that allows describing its operation. From the obtained results it was observed that the tested HTS behaves as a conventional hysteresis motor even though with a different nature. On the other hand, the motor with aluminium rotor behaves as a conventional induction motor. In asynchronous regime, the HTS motor exhibits a constant torque, higher than the conventional aluminium one.

Keywords

High temperature superconducting motor Polycrystalline YBCO Axial flux disc motor 

References

  1. 1.
    Kamerlingh-Onnes: The Superconductivity of Mercury, Comm. Phys, Lab. Univ. Leiden, Nos. 122 and 124 (1911)Google Scholar
  2. 2.
    Barnes, G.J., Dew-Hughes, D., McCulloch, M.D.: Finite difference modelling of bulk high temperature superconducting cylindrical hysteresis machines. IOP Science: Superconductor Science and Technology 13, 229 (2000)Google Scholar
  3. 3.
    Kovalev, L.K., Ilushin, K.V., Kovalev, K.L., Penkin, V.T., Poltavets, V.N., Koneev, S.M.-A., et al.: High output power electric motors with bulk HTS elements. Physica C: Superconductivity 386, 419–423 (2003)CrossRefGoogle Scholar
  4. 4.
    Miki, M., Felder, B., Tsuzuki, K., Deng, Z., Shinohara, N., Izumi, M., et al.: Influence of AC Magnetic Field on a Rotating Machine With Gd-Bulk HTS Field-Pole Magnets. IEEE Transactions on Applied Superconductivity 21(3), 1185–1189 (2011)CrossRefGoogle Scholar
  5. 5.
    Inácio, D., Pina, J., Gonçalves, A., Ventim-Neves, M., Rodrigues, A.L.: Numerical and Experimental Comparison of Electromechanical Properties and Efficiency of HTS and Ferromagnetic Hysteresis Motors, In: 8th European Conference on Applied Superconductivity (EUCAS 2007), Belgium (2007)Google Scholar
  6. 6.
    Tinkham, M.: Introduction to Superconductivity. McGraw-Hill (1996)Google Scholar
  7. 7.
    Vajda, I., Szalay, A., Gobl, N., Meerovich, V., Sokolovsky, V.: Requirements for the industrial application of superconducting rotating electrical machines. IEEE Transactions on Applied Superconductivity 9(2), 1225–1228 (1999)CrossRefGoogle Scholar
  8. 8.
    Inácio, D., Inácio, S. Pina, J., Valtchev, S., Ventim-Neves, M., Martins, J., Rodrigues, A.L.: Conventional and HTS disc motor with pole variation control, In: International Conference on Power Engineering, Energy and Electrical Drives, POWERENG 2009, Portugal, pp. 513–518 (2009)Google Scholar
  9. 9.
    Jung, H., Nakamura, T., Tanaka, N., Muta, I., Hoshino, T.: Characteristic analysis of hysteresis-type Bi-2223 bulk motor with the use of equivalent circuit. Physica C 405, 117–126 (2004)CrossRefGoogle Scholar

Copyright information

© IFIP International Federation for Information Processing 2015

Authors and Affiliations

  • David Inácio
    • 1
    Email author
  • João Murta Pina
    • 1
  • Mário Ventim Neves
    • 1
  • Alfredo Álvarez
    • 2
  1. 1.CTS, Uninova, Departamento de Engenharia Electrotécnica, Faculdade de Ciências e Tecnologia, FCTUniversidade Nova de LisboaCaparicaPortugal
  2. 2.Departament of Electrical Engineering, Escuela de Ingenierias IndustrialesUniversidad de ExtremaduraBadajozSpain

Personalised recommendations