The Characteristic Analysis of the Ag/Bi-2223 Tape and the Flux damper in GTS Synchronous Motor through 3-Dimensional Magnetic Field Analysis Using F.E.M

3차원 자계분포해석을 이용한 고온초전도동기모터에서의 Ag/Bi-2223 Tape 및 Flux Damper의 특성해석

This paper deals with the characteristic analysis of the flux damper with respect to the load, and the stability of Ag/Bi-2223 tapes in a high-Tc superconducting (HTS) synchronous motor. To find out the magnetic field distribution in a detailed model of the actual motor, the experimentally measured currents of the armature and the field windings are used as input parameters. The simulation results show that the flux damper shields the time varying field up to 10%, reduces armature reactance during the motor operation and during load changes, improving the stable motor operation. And it was observed that the flux damper generates loss by means of leakage flux, but this is not significant and it doesn't degrade the performance of the TS synchronous motor.