Trial test of a bulk-type fully HTS synchronous motor

Zhen Huang; Min Zhang; Wei Wang; T. A. Coombs

doi:10.1109/TASC.2013.2296142

Trial test of a bulk-type fully HTS synchronous motor

Zhen Huang, Min Zhang, Wei Wang, T. A. Coombs

Electronic And Electrical Engineering

Research output: Contribution to journal › Article › peer-review

51 Citations (Scopus)

Abstract

The world's first bulk-type fully high temperature superconducting synchronous motor (HTS-SM) was assembled and tested in our laboratory at the University of Cambridge. The fully HTS-SM was designed with 75 Y123 HTS bulks mounted on the surface of the rotor and six air core 2G HTS racetrack coils used for stator windings. We successfully applied a light fan load test for this fully HTS-SM at its operating temperature of 77 K. The detected decay of the trapped magnetic flux densities at the centre of the HTS bulks was up to 16.5% after 5 h of synchronous rotation. Due to the high current density of the HTS material, the ac stator field for the 2G HTS winding was 49.2% stronger compared with a comparable copper winding. In the meantime, we estimated that the efficiency was about 86% potentially under stable low frequency rotation at 150 r/min. The results show that the performance of this HTS motor is acceptable for practical applications.

Original language	English
Article number	4602605
Number of pages	5
Journal	IEEE Transactions on Applied Superconductivity
Volume	24
Issue number	3
DOIs	https://doi.org/10.1109/TASC.2013.2296142
Publication status	Published - 23 Dec 2013

Keywords

2G HTS coil
field decay
fully high temperature superconducting synchronous motor (HTS-SM)
HTS motor efficiency
Y123 HTS bulk

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10.1109/TASC.2013.2296142

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Trial test of a bulk-type fully HTS synchronous motor

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