In this paper, a novel four-switch non-isolated DC-DC converter capable of providing inverted buck and non-inverted buck-boost operation is presented. An intermediate Direct Current (DC) link with non-inverted buck-boost gain from the battery voltage is also exhibited, which aids in the voltage conversion during the Continuous Conduction Mode (CCM) and can also serve as a second output port to cater to a load requiring non-inverted buck-boost operation like an Electric Vehicle (EV) drivetrain. Also, a different switching scheme is explored for the converter with two output ports, demonstrating the versatility of the converter to provide conventional boost catering. Detailed steady-state operation of the converter is analyzed in the CCM mode and the voltage gain is derived in detail. The converter is simulated on MATLAB Simulink simulation platform and the waveforms verify the theoretical results. Closed-loop current controller design is penned down in detail due to the presence of Right Half Plane (RHP) Zero in its voltage-to-duty small signal transfer function, and its efficacy is established using step changes in load. In summary, a novel non-isolated DC-DC converter consisting of four switches and providing buck operation with the inverted polarity and buck-boost operation in the non-inverted polarity is discussed in detail and finds its best fit in EV drivetrain applications.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    A Novel Four-Switch Non-Isolated DC-DC Converter with Inverted Buck and Non-Inverted Buck-Boost Capability for Electric Vehicle Drivetrain Applications


    Contributors:


    Publication date :

    2024-07-31


    Size :

    427601 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    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

    Inverted buck-boost type integrated charger

    LEE DONGHAN | European Patent Office | 2024

    Free access

    Cryogenic Four-switch Buck-Boost Converter Design for All Electric Aircraft

    Wei, Yuqi / Hossain, Md Maksudul / Stratta, Andrea et al. | IEEE | 2022