EV battery voltages are increasing from the conventional 400 V to 800 V. To fully utilize existing 400 V chargers for such high-voltage batteries, an on-board boost converter with a step-up conversion ratio of 2.0 is required. Resonant switched capacitor converters (RSCCs) are known as the best topology to reduce circuit volume. However, a rms current of the resonant sinusoidal wave is larger than their input current, leading to increased conduction losses. This paper proposes a PWM modulated RSCC to reduce conduction losses by generating the trapezoidal wave current. In addition, the trapezoidal wave current can further reduce current stresses due to reducing current amplitude. A prototype verification test demonstrated the reduction of conduction losses by approximately 12% compared to the conventional method.


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    Titel :

    Resonant Switched Capacitor Converter with Conduction Losses Reduction by Generating Trapezoidal wave current for Electric Vehicles


    Beteiligte:
    Kondo, Ranma (Autor:in) / Uno, Masatoshi (Autor:in)


    Erscheinungsdatum :

    28.11.2023


    Format / Umfang :

    1324406 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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