A novel cooling design is proposed to improve the power density of a radial flux permanent magnets synchronous motor (PMSM) with an internal rotor and hairpin windings. It provides additional overall cooling capability and targets the hot spots that typically limit the motor performance: the stator end windings and the rotor magnets. A water ethylene-glycol mix (WEG) is used as the cooling fluid where the losses are extracted by thermal conduction. The novel end-winding cooling is performed through the motor endplates with a thin layer of thermal encapsulant. The magnet cooling is done using the available coolant in the backplate for the end windings and feeding it to a lance that allows it to enter the rotating hollow shaft. The geometry and the properties of the materials considered are used to build a thermal model. An existing electric vehicle (EV) traction reference PMSM is presented as a baseline, and a cooling proof of concept (PoC) is built for experimental validation of the enhanced cooling. The testing setup is presented, and test results are analyzed. The experimentally validated thermal model is then used to extrapolate the cooling design’s application to a full prototype, and the expected benefits are quantified.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    An Enhanced PMSM Cooling Design for Traction of an Electric Vehicle


    Beteiligte:

    Erschienen in:

    Erscheinungsdatum :

    01.06.2024


    Format / Umfang :

    2404105 byte




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Dryfit Electric Vehicle - Enhanced Dryfit Traction Block

    Hanauer, D. / Electric Vehicle Association of the Americas | British Library Conference Proceedings | 1994


    COOLING SYSTEM OF TRACTION TRANSISTOR OF ELECTRIC RAIL VEHICLE

    KULIKOV KIRILL IGOREVICH | Europäisches Patentamt | 2018

    Freier Zugriff

    An enhanced proportional resonance controller design for the PMSM based electric vehicle drive system

    Sangeetha, Elango / Ramachandran, Vijaya Priya | Elsevier | 2024

    Freier Zugriff

    ELECTRIC TRACTION VEHICLE

    FAVARETTO FABRIZIO | Europäisches Patentamt | 2022

    Freier Zugriff