Charge-based ZVS modulation of a 3–5 level bidirectional dual active bridge DC-DC converter

Sfakianakis, Georgios E.; Everts, Jordi; Huisman, Henk; Borrias, Thomas; Wijnands, C. G. E.; Lomonova, E.A.

doi:10.1109/ecce.2016.7854914

Cited by 13 publications

(2 citation statements)

References 15 publications

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“…Using the same principle, auxiliary inductors can also be employed in modified DAB/DAB3 converters, helping to cover the ZVS region to the entire operating range. In [241], a 0.46μH inductor and a 62.1μH inductor are added between the two middle nodes, respectively, in a DAB converter with a Ttype full bridge. In [242], a 70μH inductor and a 40μH magnetizing inductance are utilized in a DAB converter with a half bridge and a T-type full bridge.…”

Section: ) Current Injectionmentioning

confidence: 99%

Review of Dual-Active-Bridge Converters With Topological Modifications

Sha

et al. 2023

IEEE Trans. Power Electron.

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Section: ) Current Injectionmentioning

confidence: 99%

Review of Dual-Active-Bridge Converters With Topological Modifications

Sha

et al. 2023

IEEE Trans. Power Electron.

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“…A structure using half-and fullbridge topologies with both I-type primary and I-type secondary side of the transformer has also been studied in [19,20] that examine the control strategy and zero voltage switching (ZVS) of these topologies. In addition, the other structures have also been studied in the literature which are T-type only in the primary side of the transformer in [21] and T-type only in the secondary side of the transformer in [22][23][24]. Also, T-type switching combination topologies are stated in [24] as more efficient topology than I-type.…”

Section: Introductionmentioning

confidence: 99%

Novel three‐level T‐type isolated bidirectional DC–DC converter

Demirel

Arifoğlu

Kalayci

2019

IET Power Electronics

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This study presents a novel three-level T-type isolated bidirectional DC-DC converter (3LTT-IBDC) for bidirectional DC power transfer. Owing to of the T-type structure of the proposed converter it has less number of switches and thus, lower cost and higher efficiency, as well as easy control are the advantages of the proposed converter compared to three-level counterparts. Additionally, 3LTT-IBDC is more reliable than three-level converters since unequal voltage blocking does not occur in T-type structure. Moreover, the symmetrical operation of the isolation transformer due to three-level symmetrical voltage waveform, lower voltage stress of switches and thus, higher efficiency are other advantages of 3LTT-IBDC compared to twolevel counterparts. Here, the DC voltage gain and power transfer characteristic of the proposed converter for steady-state operation and the expressions of the leakage inductance are derived. The proposed converter is simulated using PSIM. A 2-kW prototype is built to verify the theoretical analysis of the converter. Theoretical and experimental results show a good agreement and validate the competency of the presented converter design. The efficiency of the proposed converter and switching transitions of the switches are analysed. The full load and maximum efficiency of the converter are measured as 96.27% and 96.81%, respectively.

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A Three-Level Dual-Active-Bridge Converter With Blocking Capacitors for Bidirectional Electric Vehicle Charger

et al. 2019

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In order to solve the considerable issues of air pollution, climate warming and fossil energy shortage, many governments around the world have formulated policies to encourage the development of electric vehicles over the past decade. This paper proposes a three-level dual-active-bridge (DAB) converter with blocking capacitors for bidirectional electric vehicle charger. In the proposed three-level DAB converter, two blocking capacitors are placed in series with the two windings of the transformer, respectively. Both of the two three-level bridges can operate in four modes, and generate square waves with four kinds of amplitude. Therefore, the proposed three-level DAB converter can adapt to the wide voltage range of electric vehicle. A working mode selection algorithm is developed to minimize the transformer RMS current of the three-level DAB converter. The optimal working mode can be selected in real time according to the voltage ratio and the active power. Finally, experimental results are presented to verify the feasibility and the advantage of the proposed three-level DAB converter.INDEX TERMS Asymmetric, blocking capacitor, dual-active-bridge, three-level.

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Charge-based ZVS modulation of a 3–5 level bidirectional dual active bridge DC-DC converter

Cited by 13 publications

References 15 publications

Review of Dual-Active-Bridge Converters With Topological Modifications

Review of Dual-Active-Bridge Converters With Topological Modifications

Novel three‐level T‐type isolated bidirectional DC–DC converter

A Three-Level Dual-Active-Bridge Converter With Blocking Capacitors for Bidirectional Electric Vehicle Charger

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