Title :
Investigation of magnetic characteristics in HTS bulk materials for motor applications
Author :
Nakamura, Taketsune ; Fukui, Kentaro ; Jung, Hun-June ; Muta, Itsuya ; Hoshino, Takashi
Author_Institution :
Graduate Sch. of Eng., Kyoto Univ., Japan
fDate :
6/1/2003 12:00:00 AM
Abstract :
Magnetic characteristics of a Bi-2223 bulk rotor that was used for the HTS motor was investigated at 77.3 K. Spatial distribution of the magnetic flux density in the air-gap of axial-type HTS motor was measured in a rotating magnetic field at 60 Hz frequency. Numerical simulation based on 3D finite element method was also performed. It was shown that the pinning property of the bulk rotor influences the harmonic components of the air-gap flux density as well as motor characteristics.
Keywords :
electric motors; finite element analysis; harmonics; high-temperature superconductors; machine theory; magnetic flux; rotors; superconducting machines; 3D FEM; 3D finite element method; 60 Hz; Bi-2223 bulk rotor; BiPbSrCaCuO; HTS bulk materials; air-gap flux density; axial-type HTS motor; magnetic characteristics; magnetic flux density; motor applications; motor characteristics; numerical simulation; pinning property; rotating magnetic field; spatial distribution; Air gaps; Density measurement; Frequency measurement; High temperature superconductors; Magnetic field measurement; Magnetic flux; Magnetic flux density; Magnetic materials; Rotation measurement; Rotors;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2003.813059
