This paper describes the development of high-frequency air-gap windings for a 1 MW, 96% efficient permanent magnet (PM) motor, targeted at 13 kW/kg. Due to the power level and high-specific power requirements, special attention has to be paid to the electromagnetic, thermal, and mechanical performance for the high-frequency coils. Specifically, AC losses have to be minimized while fill factor and thermal conductivity of the assembly are maximized. The paper presents analytical and finite element-based AC loss studies along with experimental validation by indirect balanced calorimetry, and shares the results which should be scalable for other large machines. Hardware development and corresponding manufacturing process are also described.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    High-Frequency Litz "Air-Gap" Windings for High-Power Density Electrical Machines




    Erscheinungsdatum :

    2017




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch



    Klassifikation :

    BKL:    53.33 / 53.33 Elektrische Maschinen und Antriebe



    Thermal Analysis of Potted Litz Wire for High-Power-Density Aerospace Electric Machines

    Woodworth, Andrew A. / Shin, Euy-Sik / Smith, Andrew et al. | IEEE | 2019


    Thermal Analysis of Potted Litz Wire for High Power Density Aerospace Electric Machines

    Woodworth, Andrew / Sixel, William A. / Edwards, Ryan et al. | AIAA | 2019


    THERMAL ANALYSIS OF POTTED LITZ WIRE FOR HIGH POWER DENSITY AEROSPACE ELECTRIC MACHINES

    Woodworth, A. A. / Smith, A. / Sixel, W. et al. | TIBKAT | 2019


    Development of a Production Process for Formed Litz Wire Stator Windings

    Born, Henrik Christoph / Blanc, Florian Sell-Le / Platte, Volkmar et al. | IEEE | 2022