AC Three-Phase Axial Flux Motor With Magnetized Superconductors

Author

López, J. ; Lloberas, J. ; Maynou, R. ; Granados, X. ; Bosch, R. ; Obradors, X. ; Torres, R.

Author_Institution

Univ. Polytech of Catalonia, Barcelona

Volume

17

Issue

2

fYear

2007

fDate

6/1/2007 12:00:00 AM

Firstpage

1633

Lastpage

1636

Abstract

One of the most relevant topics in the development of trapped field superconducting motors is the requirement of a magnetization process of the superconducting pellets, previously to start operating the superconducting machine. This work deals with magnetization of an axially excited superconducting motor. We consider two ways to magnetize the eight YBCO bulks included in an eight poles disk shaped rotor: the so called Field Cooling (FC) and the Zero Field Cooling (ZFC) processes. Discussion of both procedures is reported in terms of the behaviour of the motor after magnetization is done. Measurement system and data concerning torque and load angle are also reported.

Keywords

AC motors; high-temperature superconductors; magnetisation; superconducting machines; synchronous machines; yttrium compounds; AC three-phase axial flux motor; YBCO bulks; YBa₂Cu₃O; disk shaped rotor; load angle; magnetization process; magnetized superconductor; superconducting machine; superconducting pellets; torque; trapped field superconducting motor; zero-field cooling; AC motors; Cooling; Magnetic field measurement; Magnetic flux; Magnetization processes; Poles and zeros; Rotors; Superconducting magnets; Superconductivity; Yttrium barium copper oxide; Field cooling process; superconducting motor; synchronous regime; trapped field motor; zero field cooling process;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2007.898361

Filename

4277570