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Optimisation of Superconducting Motors with YBCO Bulk Material

  • B. Oswald
  • M. Krone
  • M. Söll
  • T. Straßer
  • J. Oswald
  • K.-J. Best
Chapter
Part of the Advances in Cryogenic Engineering book series (ACRE)

Abstract

In order to optimize superconducting motors with YBCO bulk material operating at 77 K, several motors have been constructed and tested up to more than 20 kW. These reluctance motors have been operated at different speeds in synchronous mode. The rotors consist of a combination of iron poles and HTS-segments. Special attention has been paid to internal loss mechanisms to improve the efficiency. With this respect the rotor geometry and the stator design have been varied. Different motor types “PILZ” and “ZEBRA” types have been constructed and tested. The test results are reported and compared. A computer program was installed and is the basis of theoretical considerations. The experimental results are in good accordance with the theory. The small size and low weight, as well as the high dynamics of these motors, can be considered as important advantages for various applications. The specific requirements of potential applications are discussed.

Keywords

Power Factor Maximum Torque Motor Type Load Characteristic Synchronous Mode 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    G. R. Slemon: „Electrical Machines and Drives“ Addison-Wesley Publishing Company, (1992).Google Scholar
  2. 2.
    W. Düchting: „Ermittlung der günstigsten Läuferabmessungen bei Drehstrom-Reluktanzmotoren“ ETZ-A 84 (1963).Google Scholar
  3. 3.
    B. Oswald, M. Krone, M. Söll, J. Oswald, K.-J. Best: „Superconducting Motors with YBCO-bulk Material“ 4th Meeting 9. 4. (1998) MoscowGoogle Scholar
  4. 4.
    L.K. Kovalev, K.V. Ilushin, S.M.-A. Koneev, V.T. Penkin, V.T. Poltavets, W. Gawalek, T. Habisreuther, B. Oswald, and K.-J. Best, “Hysteresis and Reluctance Electric Machines with bulk HTS rotor elements” IEEE Trans. Appl. Supercon. 9:1261 (1999).CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 2000

Authors and Affiliations

  • B. Oswald
    • 1
  • M. Krone
    • 1
  • M. Söll
    • 2
  • T. Straßer
    • 1
  • J. Oswald
    • 1
  • K.-J. Best
    • 3
  1. 1.OSWALD Elektromotoren GmbHMiltenbergGermany
  2. 2.Fachhochschule LandshutLandshutGermany
  3. 3.Best EngineeringHanauGermany

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