Multiwinding based Semi-Dual Active Bridge Converter

Hoffmann, Felix; Lafrenz, Jan-Ludwig; Liserre, Marco; Vázquez, N.

doi:10.1109/apec39645.2020.9124525

Cited by 6 publications

(5 citation statements)

References 15 publications

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“…Besides, an EVs fast charging system combines a PV source, stationary storage system, and vehicle batteries [193], while a multiple energy storage elements system in-cludes a battery and ultracapacitor [197]. On the other hand, some applications require multiple loads, such as DC fast charging stations in [200], and EV charging stations with fast and slow charging stations in [202]. Adding transformer windings and corresponding bridge cells can easily accommodate more sources or loads, with each port being galvanically isolated from the others.…”

Section: ) Multiport Dab/dab3mentioning

confidence: 99%

“…To simplify the analysis, a generalized frequency-domain modeling technique was employed in a multiport converter with two LLtype CF full bridges and a conventional full bridge in [199]. The load side bridges in [200] are semi bridges with two diodes on top sides, which are used in fast charging stations without the necessity for bidirectional power flow. A multiport 13 > IEEE TRANSATIONS ON POWER ELECTRONICS < DAB converter consisting of an MMC-based full bridge and two conventional full bridges was studied in [201] for a lowvoltage DC distribution network system.…”

Section: ) Multiport Dab/dab3mentioning

confidence: 99%

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Review of Dual-Active-Bridge Converters With Topological Modifications

Sha

et al. 2023

IEEE Trans. Power Electron.

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Section: ) Multiport Dab/dab3mentioning

confidence: 99%

Section: ) Multiport Dab/dab3mentioning

confidence: 99%

Review of Dual-Active-Bridge Converters With Topological Modifications

Sha

et al. 2023

IEEE Trans. Power Electron.

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“…The issue of unwanted cross-coupling effects describes the interaction between load ports due to the magnetic coupling. In other words, when the output characteristic of one port is changed, the other ports will also be affected [25]. This effect is severe for architectures with independent load ports (ISOI, IPOI, IIOI), especially for operation modes with large difference in power/voltage level.…”

Section: B Unwanted Cross-coupling Effectsmentioning

confidence: 99%

A Comprehensive Assessment of Multiwinding Transformer-Based DC–DC Converters

Pereira

Hoffmann

Zhu

et al. 2021

IEEE Trans. Power Electron.

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Multiwinding-Transfomer-based (MTB) DC-DC converter did emerge in the last 25 years as an interesting possibility to connect several energy systems and/or to offer higher power density because of the reduction of transformer core material and reduction of power converter stages. MTB DC-DC converters can be considered as an interesting compromise between non-modular and a modular DC-DC converter since they are themselves modular in the construction. This eventually leads to some fault-tolerant possibilities since the multiwinding transformer (MWT) connects multiples ports and if one of them is not working anymore and it can be isolated, the others might still continue operating. Unfortunately, it is exactly the MWT that creates most of the technical challenges of this class of DC-DC converters because of the cross-coupling effects among the cells which make especially the resonant-topology very challenging to be designed. This paper reviews the history of the MTB DC-DC and then provides a classification of them, comparing them with Figure of Merits (FOM) and focusing on which is the maximum possible number of windings and which are the most suited magnetic core types. The problems coming from cross-coupling and the possible fault-tolerant operation are analysed with the help of simulation and experimental results.

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“…Solutions that integrate BSS via a multiport converter [Fig. 1 (b)] are increasingly being investigated due to their high conversion efficiency and power density [6]- [11]. Particularly with regard to round trip efficiency, the multiport converter approach shows advantages due to the reduced number of conversions, as shown in Fig.…”

Section: Introductionmentioning

confidence: 99%

A Multiport Partial Power Processing Converter With Energy Storage Integration for EV Stationary Charging

Hoffmann¹,

Person²,

Andresen³

et al. 2022

IEEE J. Emerg. Sel. Topics Power Electron.

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Battery storage system (BSS) integration in fast charging station (FCS) is becoming popular to achieve higher charging rates with peak-demand shaping possibility. However, the additional conversion stage for integrating the BSS increases the system losses, size and cost. The concept of partial power processing converter (PPPC), can mitigate this effect. Compared to conventional used full power processing converter, PPPC reduces the amount of transferred power from the BSS to the electric vehicle by the converter. As a consequence, the power losses generated by the converter are reduced, leading to lower sized converters and higher system efficiencies. This paper proposes a DC/DC multiport converter which allows the integration of battery storage in FCS based on a partial power processing concept, while maintaining the specific requirements in terms of isolation for FCS. The proposed three-port partial power processing converter (3P-PPPC) is derived from the commonly used triple active bridge (TAB) converter. The resulting design trade-offs, the dynamic behavior and limitations of the topology are investigated. Furthermore, the round-trip efficiency of the 3P-PPPC for integrating BSS in FCS is compared with conventional full power processing converter solutions, highlighting the superiority of the proposed topology. A prototype has been built to validate the 3P-PPPC.

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Multiwinding based Semi-Dual Active Bridge Converter

Cited by 6 publications

References 15 publications

Review of Dual-Active-Bridge Converters With Topological Modifications

Review of Dual-Active-Bridge Converters With Topological Modifications

A Comprehensive Assessment of Multiwinding Transformer-Based DC–DC Converters

A Multiport Partial Power Processing Converter With Energy Storage Integration for EV Stationary Charging

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