Trial Test of a Bulk-Type Fully HTS Synchronous Motor

被引：52
作者：
Huang, Zhen [1 ]
Zhang, Min [1 ]
Wang, Wei [1 ]
Coombs, T. A. [1 ]
机构：
[1] Univ Cambridge, Dept Engn, Elect Engn Div, Cambridge CB3 0FA, England
来源：
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2014年 / 24卷 / 03期
基金：
英国工程与自然科学研究理事会;
关键词：
Field decay; fully high temperature superconducting synchronous motor (HTS-SM); HTS motor efficiency; Y123 HTS bulk; 2G HTS coil; SUPERCONDUCTORS; ROTOR;
D O I：
10.1109/TASC.2013.2296142
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
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.
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页数：5
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