High strength magnetic steel laminations are the invariable choice to achieve the power density demands of high speed electric machines required in the automotive industry. However, the cost competitive automobile market, favours the use of conventional materials. Consequently, in this paper, a high strength martensitic sleeve rotor configuration is identified as an ideal choice to maximize the use of conventional materials in a high speed synchronous reluctance (SynRel) machine. A 3.5 kW, 60 krpm high speed SynRel machine is designed for an electric assist turbocharger (EAT) to disclose the benefits of sleeve rotor configuration. The performance of the sleeve rotor is on par and superior to a SynRel machines employing high and low strength laminations respectively. Finally, a multiphysics optimization is performed to ascertain the superiority of sleeve rotor SynRel configuration. Based on this, the sleeve rotor produces 4.5% and 46.7% more torque than the SynRel machines using high and low strength laminations with conventional rotor configurations. Additionally, this is achieved with nearly 90% by volume of conventional rotor lamination.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Improving the Saliency of a High Speed SynRel Rotor by using High Strength Martensitic Sleeve


    Contributors:


    Publication date :

    2021-01-21


    Size :

    1057149 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English




    Rotor retaining sleeve design of 1.12MW high-speed PM machine for shipboard power

    Guanghui Du / Fengge Zhang / Tianyu Wang et al. | IEEE | 2014


    Motor rotor sleeve

    HOLLAND JOHN | European Patent Office | 2022

    Free access

    Motor rotor sleeve

    HOLLAND JOHN / WIEDERER FRANZ | European Patent Office | 2022

    Free access

    Electric machine rotor sleeve

    HØYLAND JØRG / WIDERØE FREDRIK | European Patent Office | 2024

    Free access