A new structural configuration of a permanent-electro magnet suspension (PEMS) magnet is presented to reduce the suspension power loss of middle-low-speed maglev trains. With the non-linear magnetic force expression of a PEMS magnet, some measures to increase the lift force remarkably is put forward, including selecting suitable thickness and pole face area of permanent magnet (PM), determining the ampere-turn of electromagnet, and working with the maximum magnetic energy product of a PM. The structural optimal design of PEMS magnet is converted to one type of constrained non-linear programming problem. The carrying capability and suspension power loss of designed PEMS magnet with optimised parameters are compared with a conventional electromagnetic system. Finally, numerical simulation and experimental results show that the PEMS magnet has better carrying capability and lower suspension power loss.


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    Title :

    Structural optimal design of a permanent-electro magnetic suspension magnet for middle-low-speed maglev trains


    Contributors:
    Zhang, Z. (author) / She, L. (author) / Zhang, L. (author) / Shang, C. (author) / Chang, W. (author)

    Published in:

    Publication date :

    2011-06-01


    Size :

    8 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English






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