Increasing the DC-link voltage up to 800 V brings significant advantages in automotive applications. Faster charging times, lower weight and better efficiencies are some aspects associated with these systems. In this work, a holistic system optimization for an 800 V automotive powertrain with Si-IGBTs and SiC-MOSFETs is discussed. The consideration of the specific challenges for optimizing an inverter for fast switching as well as its consequences at system level are discussed. The choice of the optimal PWM frequency as well as the impact of fast switching on bearing currents are also demonstrated. The efficiency gap between the Si and SiC solutions is derived experimentally and is shown to be very significant in cycle relevant areas. It is demonstrated that only a thorough consideration of the system tradeoffs and physical properties can lead to an optimal solution regarding efficiency, costs and reliability at system level.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    System Optimization for 800 V e-drive Systems in Automotive Applications


    Additional title:

    Proceedings


    Contributors:

    Conference:

    International Conference on Drives and energy systems of tomorrow ; 2022 ; Berlin, Deutschland May 10, 2022 - May 11, 2022



    Publication date :

    2023-08-29


    Size :

    13 pages





    Type of media :

    Article/Chapter (Book)


    Type of material :

    Electronic Resource


    Language :

    German




    Highly Compact Electric Drive for Automotive Applications

    Hashimoto, Fukuo / Zhou, Rao S. | SAE Technical Papers | 2004


    Highly compact electric drive for automotive applications

    Zhou,R.S. / Hashimoto,F. / Timken,US | Automotive engineering | 2004


    Highly Compact Electric Drive for Automotive Applications

    Zhou, R. S. / Hashimoto, F. / Society of Automotive Engineers | British Library Conference Proceedings | 2004


    Optimised induction motor drive for automotive applications

    Graovac, Dusan / Kiep, Andreas / Pürschel, Marco | Tema Archive | 2007


    Automotive motor drive control system

    FU QIANG / CHEN MINGJU | European Patent Office | 2015

    Free access