Fuel cell/battery passive hybrid powertrain with active power sharing capability

Bernard, J.; Hofer, Marcel; Hannesen, Uwe; Toth, Antoine; Tsukada, A.; Büchi, Félix N.; Dietrich, Philipp

doi:10.1109/vppc.2010.5729176

Cited by 5 publications

(2 citation statements)

References 13 publications

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“…In this way, the power provided by each component is automatically controlled by their internal resistance, and complicated control strategies are not needed to manage the power split. The effect of the direct connection of FC and batteries, or a combination of batteries and supercapacitors, has been investigated in such a topology. However, in battery‐based topologies, the power capability of the battery is often restricted because of its current limitation.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of fluctuating voltage topology with fuel cells and supercapacitors for automotive applications

Xun

Liu

2019

Int J Energy Res

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Summary To develop a single‐stage power conversion topology in which energy storage devices can be directly coupled, a fluctuating voltage topology is applied, leading to lower cost and more compactness with the absence of DC/DC converters. This paper investigates such a topology for automotive applications where fuel cells are directly connected to the DC bus of the inverter, resulting in fluctuating voltage across the DC bus. Further, a supercapacitor pack is also introduced to maintain the power capacity and voltage stability. The hybridization principle and practical application of such a topology are then discussed in the time domain and frequency domain. Furthermore, the transient power requirement is decomposed to design the size of fuel cells and supercapacitors. Simulation results from the modeling of the fuel cell‐supercapacitor powertrain demonstrate the feasibility and effectiveness of this topology. The supercapacitors can serve as a low‐pass filter for the fuel cells. In conclusion, the peak power requirement can be successfully achieved because of the lowered system impedance, and the fuel cells only need to supply the average power.

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Section: Introductionmentioning

confidence: 99%

Evaluation of fluctuating voltage topology with fuel cells and supercapacitors for automotive applications

Xun

Liu

2019

Int J Energy Res

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“…There are also existing hybrids with a passive topology as shown in Figure 1b. Here, the fuel cell and the battery are directly connected to the DC link side without any additional converters [17]. The passive topology has less power loss and cost due to the absence of DC/DC converter.…”

Section: Introductionmentioning

confidence: 99%

Demonstration of a Novel Alternating Current Hybrid Concept for a Fuel Cell–Battery Hybrid Electric Aircraft

et al. 2021

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Hybrid electric aircraft offer the potential to decrease emissions from air travel. A new hybrid concept is proposed for a fuel cell-battery hybrid aircraft. In contrast to existing hybrids, the proposed concept puts a battery directly on the AC phases of the motor, which together with a suitable switching circuit superimposes the DC voltage from the battery on the AC voltage of the motor phase providing a voltage boost depending on the battery voltage, which can be used during a high-power demand flight phase. The system is also capable of recharging the battery during flight. The necessary switching architecture was developed and modeled in MATLAB/Simulink to verify the concept and an experimental setup was built for demonstrating the functionality. Simulation and experimental results showed a very good agreement which is very promising for the proposed new hybrid topology.

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Development of a novel AC hybrid concept for a fuel cell-battery hybrid electric aircraft with power electronics switches

Ghosh

Willich

Kallo

2018

2018 14th International Conference on Power Electronics (CIEP)

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Fuel cell/battery passive hybrid powertrain with active power sharing capability

Cited by 5 publications

References 13 publications

Evaluation of fluctuating voltage topology with fuel cells and supercapacitors for automotive applications

Evaluation of fluctuating voltage topology with fuel cells and supercapacitors for automotive applications

Demonstration of a Novel Alternating Current Hybrid Concept for a Fuel Cell–Battery Hybrid Electric Aircraft

Development of a novel AC hybrid concept for a fuel cell-battery hybrid electric aircraft with power electronics switches

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