Study of a Hybrid Magnet Array for an Electrodynamic Maglev Control

    Authors

    C. Ham; W. Ko; K. C. Lin;Y. Joo

    Comments

    Authors: contact us about adding a copy of your work at STARS@ucf.edu

    Abbreviated Journal Title

    J. Magn.

    Keywords

    magnetic levitation (maglev); magnetic fields; controllability; halbach; array; hybrid magnet; Materials Science, Multidisciplinary; Physics, Applied; Physics, ; Condensed Matter

    Abstract

    This paper introduces an innovative hybrid array consisting of both permanent and electro magnets. It will enable us to develop an active control mechanism for underdamped electro-dynamic suspension (EDS) Maglev systems. The proposed scheme is based on the Halbach array configuration which takes the major technical advantage from the original Halbach characteristics: a strongly concentrated magnetic field on one side of the array and a cancelled field on the opposite side. In addition, the unique feature of the proposed concept only differs from the Halbach array with permanent magnets. The total magnetic field of the array can be actively controlled through the current of the electro-magnet's coils. As a result, the magnetic force produced by the proposed hybrid array can also be controlled actively. This study focuses on the magnetic characteristics and capability of the proposed array as compared to the basic Halbach concept. The results show that the proposed array is capable of producing not only an equivalent suspension force of the basic Halbach permanent magnet array but also a controlled mode. Consequently, the effectiveness of the proposed array confirms that this study can be used as a technical framework to develop an active control mechanism for an EDS Maglev system.

    Journal Title

    Journal of Magnetics

    Volume

    18

    Issue/Number

    3

    Publication Date

    1-1-2013

    Document Type

    Article

    Language

    English

    First Page

    370

    Last Page

    374

    WOS Identifier

    WOS:000325122600029

    ISSN

    1226-1750

    Share

    COinS