Title :
Technical analysis on the application of HTS bulk in "Permanent Magnet" motor
Author :
Qiu, M. ; Huo, H.K. ; Xu, Z. ; Xia, D. ; Lin, L.Z. ; Zhang, G.M.
Author_Institution :
Appl. Supercond. Div., Chinese Acad. of Sci., Beijing, China
fDate :
6/1/2005 12:00:00 AM
Abstract :
HTS materials can be used to develop novel permanent magnet (PM) motor. Based on the experimental and theoretical investigations, it was observed that the multi-impulse magnetization strategy should be selected for the constraints such as the temperature distributions and mechanical strength of the motor. The asymmetrical field distribution of HTS would induce torque ripples and unbalanced force. Proper cares have to be taken to avoid irreversible demagnetization. Resin impregnation and enclosing the rotor in a can/sleeve may provide the rotor enough mechanical strength to enable its high speed applications.
Keywords :
high-temperature superconductors; magnetisation; permanent magnet motors; asymmetrical field distribution; high-temperature superconductors; irreversible demagnetization; mechanical strength; multi-impulse magnetization; permanent magnet motor; resin impregnation; temperature distributions; torque ripples; Constraint theory; Demagnetization; High temperature superconductors; Magnetic analysis; Magnetic materials; Magnetization; Permanent magnet motors; Rotors; Temperature distribution; Torque; High-temperature superconductors; permanent magnet motors; permanent magnets;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2005.848773
