This paper systematically summarizes the bidirectional DC–DC topologies for HESS, focusing on the new topologies and novel ideas proposed in recent references, aiming to promote the
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This paper systematically summarizes the bidirectional DC–DC topologies for HESS, focusing on the new topologies and novel ideas proposed in recent references, aiming
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This article introduces a reference design for an "isolated bidirectional DC-DC power supply" that can be used as the basis for high-power conversion applications, including EV charging
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This high efficiency bidirectional isolated DC-DC converter is designed for several end applications such as electric vehicles (EV) and industrial battery chargers, and industrial
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Aiming to obtain bidirectional DC–DC converters with wide voltage conversion range suitable for hybrid energy storage system, a review of the research status of non-isolated converters based on impedance networks and isolated converters based on transformer are presented.
Because it is bidirectional, it does not require another DC-DC converter or AC-DC converter to charge the battery. A battery backup system application is used in this paper for the control of this converter. Figure 2 shows the topology of this new isolated bidirectional DC-DC converter.
Research on bidirectional DC-DC converters for such applications holds significant value [11, 12]. Paper introduces a DC-DC converter with high voltage reduction, converting 400V to 48V, but faces challenges in efficiency, cost, and losses.
In addition, to realize energy recovery, the bidirectional DC–DC converter is required between the power battery or SC and vehicle bus to realize the flow of feedback energy. Therefore, the bidirectional DC–DC converter is the key component of HESS. It determines the performance of HESS and further affects the performance of the powertrain of NEV.
It would be beneficial from a cost and size standpoint if the battery-charge and bus-interface functions could be accomplished in a single bidirectional DC-DC converter. Figure 1 is an existing isolated bidirectional DC-DC converter topology which has been widely used.
Herein, the research status of bidirectional DC–DC converter topologies are summarized and compared, and the future research directions of bidirectional DC–DC for HESS are prospected, aiming to further promote the development of NEV and help the use of green energy and carbon reduction.
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