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Development of a coreless HTS synchronous generator operating at sub-cooled liquid nitrogen temperatures

Record type: Article

This paper presents the current design concepts for a 100kW high temperature superconducting synchronous generator currently being designed at the University of Southampton, UK. The new generator will use the same conventional 2-pole 3-phase stator that was used in the HTS synchronous generator previously constructed at Southampton. The windings consist of 18 pancake coils made from BiPb2223 superconducting tape with a nominal current of 180A at 77K, provided by Sumitomo Electric Industries, Ltd. Tests were performed to determine the mechanical strain limits of the tape. The rotor has no central core, but magnetic pole pieces are used to improve the waveform of the generator. The coils are separated by magnetic diverter rings to reduce the normal field in the tape. The coils and diverter rings are supported by fibreglass formers that extend to the centre of the rotor so that they can be located by the through bolts that hold the stack together. A stainless steel tube encapsulates the rotor to provide a chamber for liquid nitrogen to flood the rotor.

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Citation

Al-Mosawi, M.K., Bailey, W., Beduz, C., Goddard, K. and Yang, Y. (2008) Development of a coreless HTS synchronous generator operating at sub-cooled liquid nitrogen temperatures Journal of Physics: Conference Series, 97, (1), p. 12205. (doi:10.1088/1742-6596/97/1/012205).

More information

Submitted date: January 2008
Published date: 19 March 2008
Keywords: high temperature superconducting coils, rotating superconducting machines, superconducting generators and motors, superconducting power machines

Identifiers

Local EPrints ID: 50767
URI: http://eprints.soton.ac.uk/id/eprint/50767
ISSN: 1742-6588
PURE UUID: ace4f820-4edb-4c34-a09d-c7497808f0d2
ORCID for Y. Yang: ORCID iD orcid.org/0000-0002-3874-6735

Catalogue record

Date deposited: 27 Mar 2008
Last modified: 17 Jul 2017 14:50

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