This work presents a DC-type fast electric vehicle battery charger featuring low switching losses. Herein, a conventional three-phase two-level voltage source rectifier with low capacitive energy storage operates with a discontinuous PWM modulation where each phase-legs stops switching for 240° of the grid fundamental period, i.e. only a single phase-leg switch every 60°. In this case, this AC-DC converter loses voltage controllability of the DC-link and thus a buck-type DC-DC converter is cascaded in order to provide the necessary voltage regulation and current limitation for the charging process of the electric vehicle. The presented circuit is benchmarked against other solutions for a designed 50 kW power capability battery charger when considering the charging of a 30 kWh Nissan Leaf. The results show a superior power efficiency of the studied system.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Fast DC-Type Electric Vehicle Charger Based On A Quasi-Direct Boost - Buck Rectifier


    Contributors:


    Publication date :

    2019-07-01


    Size :

    1277088 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    Buck-boost type integrated charger

    LEE DONGHAN | European Patent Office | 2024

    Free access

    INVERTED BUCK-BOOST-TYPE INTEGRATED CHARGER

    LEE DONGHAN | European Patent Office | 2024

    Free access

    Inverted buck-boost type integrated charger

    LEE DONGHAN | European Patent Office | 2024

    Free access

    Inverted buck-boost type integrated charger

    European Patent Office | 2025

    Free access