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

Pereira, Thiago; Hoffmann, Felix; Zhu, Rongwu; Liserre, Marco

doi:10.1109/tpel.2021.3064302

Cited by 43 publications

(14 citation statements)

References 59 publications

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“…The work in [23] demonstrated that a slight improvement in power density can be achieved in an electric machine by shifting from a three-phase design to a multi-threephase design. In addition to the advantages available at the machine level, the solution involving the use of a multiport dc-dc converter can offer a power density increase of up to 30% [25], rendering this latter solution even more interesting.…”

Section: Fig 8 Single DC Bus Epdsmentioning

confidence: 99%

The More-Electric Aircraft and Beyond

2023

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Aviation is a significant contributor to greenhouse gas (GHG) emissions in the transportation sector. As the adoption of electric cars increases and GHG emissions due to other modes of transport decrease, the impact of air travel on environmental pollution has become even more significant. To reduce pollution and maintenance, and ensure cheaper and more convenient flights, industry and academia have directed their efforts toward aircraft electrification. Considering various types of aircraft, several frameworks have been proposed: more-electric aircraft (MEA), hybrid electric aircraft (HEA), and all-electric aircraft (AEA). In the MEA framework, propulsion is generated by a conventional jet engine; however, all secondary systems (hydraulic, pneumatic, and actuation) are electrified. By further increasing electrification, electric motors can provide propulsion with the electric power supplied by the conventional engine (i.e., HEA) or from electrical energy storage (i.e., AEA). Power electronics and electrical machines play a key role in this scenario in which electric power must be efficiently generated, distributed, and consumed to satisfy extremely high requirements of aviation safety. This article provides an overview of recent advancements in aircraft electrification, and trends and future developments referenced to the global aviation roadmap. KEYWORDS | Electric transportation; more-electric aircraft (MEA); power electronics. I. I N T R O D U C T I O NAir transportation is the enabler of modern globalization and the backbone of mail and goods transportation.

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Section: Fig 8 Single DC Bus Epdsmentioning

confidence: 99%

The More-Electric Aircraft and Beyond

2023

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“…As described before, the choice of the port inductance is critical in operation scenarios with large voltage deviations [29]. Therefore this approach is especially suitable for such scenarios to avoid high rms currents.…”

Section: B Choice Of Transformer Turns Ratio and Port Inductancesmentioning

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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“…According to the number of transformer winding, the existing isolated three-port dc-dc converters mainly include the single-transformer type and the two-transformer type [4][5][6][7][8][9][10][11][12][13][14]. The single-transformer converter presents a clear advantage regarding the increase of the power density and the system integration.…”

Section: Introductionmentioning

confidence: 99%

TAB Series-Resonant DC-DC Converter and Multi-Phase-Shift Based Global Optimization Modulation

Wang

2022

Applied Sciences

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In this paper, a triple-active-bridge resonant dc-dc converter with the ability of topology-level power decoupling is proposed. The power coupling between the two dc ports is eliminated by adding a resonant capacitor to the common port. The operation principle and the steady-state power characteristics are analyzed. On this basis, a multi-phase-shift-based global optimization modulation is proposed to minimize the RMS values of the transformer currents in the entire power and voltage range, thus increasing the global efficiency. An experimental prototype is built to verify the correctness and availability of the proposed power decoupling topology and optimized modulation.

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

Cited by 43 publications

References 59 publications

The More-Electric Aircraft and Beyond

The More-Electric Aircraft and Beyond

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

TAB Series-Resonant DC-DC Converter and Multi-Phase-Shift Based Global Optimization Modulation

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