This paper presents a Zero Voltage Switching (ZVS) modulation strategy for the 3 Level – 5 Level (3–5L) Dual Active Bridge (DAB) DC-DC converter. The DAB accommodates a full bridge in the primary side and two 3-level T-Type bridge legs in the secondary side, linked by a high-frequency transformer and an inductor. A ZVS modulation strategy is presented, in which commutation inductances are utilized to extend the ZVS region to the entire operating range of the converter. The configuration of the secondary-side bridge allows further flexibility, compared to a full bridge configuration, to minimize the RMS current in the inductor. The nominal power of the converter is 2.8 kW with input voltage range from 8 V to 16 V, and output voltage range from 175 V to 450 V. The RMS currents of the 3–5L DAB are compared with those of a typical 3–3L full bridge - full bridge DAB, by applying the proposed modulation strategy in the 3–5L DAB, and a strategy proposed in literature in the 3–3L DAB.


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    Title :

    ZVS modulation strategy for a 3–5 level bidirectional Dual Active Bridge DC-DC converter


    Contributors:


    Publication date :

    2016-04-01


    Size :

    860835 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English





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