Title :
3-D FEM field analysis in controlled-PM LSM for Maglev vehicle
Author :
Yoshida, Kinjiro ; Lee, Ju ; Kim, Young Jung
Author_Institution :
Dept. of Electr. Eng., Kyushu Univ., Fukuoka, Japan
fDate :
3/1/1997 12:00:00 AM
Abstract :
The magnetic fields in the controlled-PM LSM for Maglev vehicle, of which the width is not only finite with lateral edges, but also an effective electric-airgap is very large, are accurately analyzed by using 3-D FEM. The lateral airgap-flux due to lateral edges of the machine is made clear and its effects on thrust and lift forces are evaluated quantitatively from the comparison with 2-D FEA. The accuracy of 3-D FEA is verified by comparing the calculated results with the measured values
Keywords :
air gaps; finite element analysis; linear synchronous motors; machine theory; magnetic flux; magnetic levitation; permanent magnet motors; railways; 2-D FEM; 3-D FEM field analysis; Maglev vehicle; controlled-PM LSM; electric-airgap; lateral airgap-flux; lateral edges; lift forces; linear synchronous motor; thrust; Force measurement; Magnetic analysis; Magnetic field measurement; Magnetic levitation; Magnetic separation; Magnetic variables control; Propulsion; Remanence; Stators; Vehicle driving;
Journal_Title :
Magnetics, IEEE Transactions on
