This paper presents a 350kW, high-efficiency, three-phase 4.16kV-AC medium voltage(MV) isolated power converter that can be used as a MV DC fast charger for battery electric vehicles using SOOV battery packs and is interoperable with legacy vehicles with 400V battery packs. The proposed high power quality (PF$\geq 0.98$, THD $\leq 5\%$) charging system comprises of three identical power modules, one for each phase with their outputs connected in parallel to deliver the charging power. The converter uses variable switching frequency and a combination of single and double phase shifts to achieve the dual control objective of UPF and ZVS over the entire operating range while minimizing the device current and maintaining the charging current constant. Design guidelines of input and output filters, high frequency tranformer and switching frequency range selection have been presented. Simulation results validate the proposed charging station design and operation.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Three-phase Medium Voltage DC Fast Charger based on Single-stage Soft-switching Topology


    Contributors:


    Publication date :

    2018-06-01


    Size :

    1845407 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English




    Single-stage three-port magnetic integration topology, vehicle-mounted charger and control method of vehicle-mounted charger

    WANG TENGFEI / ZHUANG JIACAI / WANG HAO et al. | European Patent Office | 2023

    Free access


    SINGLE-STAGE THREE-PORT MAGNETIC INTEGRATED TOPOLOGY, AND VEHICLE-MOUNTED CHARGER AND CONTROL METHOD THEREFOR

    WANG TENGFEI / ZHUANG JIACAI / WANG HAO et al. | European Patent Office | 2024

    Free access

    THREE PHASE AND SINGLE PHASE COMPATIBLE CHARGER

    SEWAN CHOI | European Patent Office | 2022

    Free access