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3D Electromagnetic Field Analysis for Mixing Suspension Electromagnet Used by Maglev Train

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3 Author(s)
Liu Shaoke ; Coll. of Mechatron. Eng. & Autom., Nat. Univ. of Defense Technol., Changsha, China ; Guo Zhongjun ; Chen Guirong

A maglev train is supported by electromagnetic force between suspension electromagnet and track and is driven by linear motor. The suspension electromagnet is an important part of a maglev train. Its operating characteristic has a direct bearing on technology-economy performance and run safety of the whole train. The paper advances a new electromagnet structure mixing permanent magnet with electric excitation coil. The 3D electromagnetic fields are analyzed under several type work conditions. The correlative results are compared with the 2D computation. It shows that electromagnetic force under the 3D analysis is smaller than that under the 2D. The error becomes big under severe leak magnetic field. These analyses are approved by testing for a mixing electromagnet sample.

Published in:

Electrical and Control Engineering (ICECE), 2010 International Conference on

Date of Conference:

25-27 June 2010