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Analysis of the Driving Force of a Levitated Spherical Superconducting Rotor

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6 Author(s)
Xinning Hu ; Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing, China ; Qiuliang Wang ; Housheng Wang ; Chunyan Cui
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A spin drive device of superconducting rotor was designed based on the Meissner effect. The electromagnetic field generated by the stator coils engenders the rotating torque on the superconducting rotor through the windows on its inner wall. The driving force was calculated using finite-element analysis, and the results show that the driving torque is approximately proportional to the square of the driving current. The difference between calculation and experimental results of the driving torque is about 7%. These results will be good references for the further improvement of operating parameters and rotation stability of a superconducting rotor.

Published in:

IEEE Transactions on Applied Superconductivity  (Volume:22 ,  Issue: 5 )