Emerging wide-bandgap based power semiconductor devices are gaining popularity in power electronic systems for automotive applications with the aim of increased power density, reduced weight and increased efficiency. In this work, loss analysis and mapping of a segmented two-level inverter based on SiC MOSFETs are presented in order to identify the challenges in design of power electronics and electric machines for EV applications. The paper starts with description of the EV traction system that is chosen as the study case, followed by segmented inverter topology, power device selection and sizing. The theoretical switching, conduction and dead-time conduction loss analysis for the SiC MOSFETs in the segmented two-level inverter topology are presented under any given operating condition. The analysis is followed by loss mapping of the motor, inverter and overall EV traction system. The loss maps of the inverter and the motor show that each component has different thermal loading trends under given torque-speed characteristics. Therefore, various operating conditions have to be considered for the design of traction system components to ensure reliability and high performance, which are critical requirements for EV systems.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Loss Analysis and Mapping of a SiC MOSFET Based Segmented Two-Level Three-Phase Inverter for EV Traction Systems


    Contributors:


    Publication date :

    2018-06-01


    Size :

    310795 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    A Compact 250 kW Silicon Carbide MOSFET based Three-Level Traction Inverter for Heavy Equipment Applications

    Wang, Zhongjing / Mahmud, Mohammad Hazzaz / Uddin, Muhammad Hammad et al. | IEEE | 2018


    GTO and IGBT traction three phase inverter drives

    White, R.D. | IET Digital Library Archive | 1998



    Traction inverter

    LIHUI YANG / YANG FANQI / YANG CHUNYU | European Patent Office | 2022

    Free access

    TRACTION INVERTER INTEGRATION WITH THREE-PHASE RESONANT DC/DC CONVERTER

    ELSHAER MOHAMED | European Patent Office | 2024

    Free access