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    High-Speed Compulsator Stator Thermal Management

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    PR_303.pdf (1.161Mb)
    Date
    2003-01
    Author
    Liu, H-P.
    Hahne, J.J.
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    Abstract
    The compulsator stator armature winding includes multiple conductor layers. Each conductor layer is made of insulation wraps and transposed aluminum litz wire bundles with epoxy potting compound between the wires and the wire bundles. For a typical pulse-duty application, based on a room-temperature electrical loss calculation, the temperature rise in the aluminum winding is approximately 30/spl deg/C per shot. Adequate active cooling must be provided such that the stator insulation can survive thermally under a certain pulse repetition rate. As a result of the low equivalent thermal conductivities of the stator winding in the transverse direction, without compromising the overall structural integrity of the winding, the coolant passages have to be allocated as close as possible to the heat sources. For a given electric gun firing mission, four different cooling configurations have been investigated and analyzed by using water ethylene glycol mixture as an active liquid coolant. In this paper, thermal analysis cooling parameters, transient stator winding temperature distributions, and hot-spot temperature histories are presented, discussed, and compared.
    Department
    Center for Electromechanics
    Subject
    Rotating Machine
    compulsator
    aluminum litz
    active cooling
    thermal management
    URI
    http://hdl.handle.net/2152/30625
    xmlui.dri2xhtml.METS-1.0.item-citation
    H-P. Liu and J.J. Hahne, “High-speed compulsator stator thermal management,” IEEE Transactions on Magnetics, vol. 39, no. 1, January 2003, pp. 357-361.
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    • facebook
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    • CONTACT US
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    Subscribe to our NewsletterGive to the Libraries

    © The University of Texas at Austin