Electrical Characteristic Study of a Hybrid PEMFC and Ultracapacitor System

Jia, Jing; Wang, Gucheng; Cham, Y.T.; Wang, Youyi; Han, Ming‐Yong

doi:10.1109/tie.2009.2022066

Cited by 78 publications

(6 citation statements)

References 27 publications

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“…Fuel cell systems (FCS), and in particular, proton exchange membrane fuel cells (PEMFC) are interesting energy sources because of their high efficiency, low emissions, and high energy density. However, the dynamic response of the FCS is limited by the gas supply and then the FCS are very constrained to supply high dynamic power loads, moreover FCS are not able to recover energy (regenerative braking in vehicular application for instance) 1–5. Ultra capacitors (UC) appear as an interesting complementary source to FCS due to their high power density, fast charge/discharge abilities, and reversibility 2, 5–7.…”

Section: Introductionmentioning

confidence: 99%

“…The authors propose an iterative global system sizing method to study the effect of the sizing in the natural energy management to obtain an adequate power distribution. Junbo et al 3 study the electrical behavior of a PEMFC and UC passive hybrid source for a small vehicle (bicycle). The results suggest that the passive source can supply the load with high dynamics and uninterrupted power; it can also improve the efficiency, the peak power, and extend the autonomy of the system.…”

Section: Introductionmentioning

confidence: 99%

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Proton Exchange Membrane Fuel Cell Operation and Degradation in Short‐Circuit

et al. 2014

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rosa.silva-sanchez@univ-fcomte.frKeywords: proton exchange membrane fuel cells, short circuit, degradation mechanism, electrochemical impedance spectroscopy. ABSTRACTThis paper presents an experimental study dealing with operation and degradation during an electrical short circuit of a proton exchange membrane fuel cell stack. The physical quantities in the fuel cell (electrical voltage and current, gas stoichiometry, pressures, temperatures and gas humidity) are studied before, during and after the failure. After a short circuit occurs, a high peak of current appears but decreases to stabilize in a much lower value. The voltage drops in all the cells and even some cells presents reversal potentials. The degradation is quantified by using electrochemical impedance spectroscopy.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Proton Exchange Membrane Fuel Cell Operation and Degradation in Short‐Circuit

et al. 2014

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“…ES converter can be scheduled to operate in either MB or power reference mode. In [19], ES with higher ramp rate is assigned to operate in power reference mode operation and the higher frequency component of system net power obtained with Eqn.…”

Section: A Centralized Controlmentioning

confidence: 99%

Hierarchical control of active hybrid energy storage system (HESS) in DC microgrids

Wang

Xiao

Setyawan

et al. 2014

2014 9th IEEE Conference on Industrial Electronics and Applications

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energy storages can be characterized based on energy and power densities, ramp rate, etc. Hybridization takes advantages of all energy storages to enhance system performance. Hierarchical control which is comprised of both centralized and distributed control is proposed for HESS operation in this paper. In normal state, system operates with energy management system. The central controller is used to coordinate the power sharing among various energy storages based on their characteristics and operating statuses. In case of communication failure, distributed control which operates with local information is to be activated. The bus voltage is used as indicator for system power balance to realize distributed control of system units. MATLAB/Simulink is used for the verification of the proposed methods.

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“…A fuel cell (FC) is a renewable electrochemical device that directly combines fuel (hydrogen) and oxidant (air) as a means to supply pure energy. They operate with high power density and low temperatures and provide fast startup [1]. However, the fuel-cell varies its voltage in function on the load applied.…”

Section: Introductionmentioning

confidence: 99%

Autonomous Mobile Robot With Hybrid Pem Fuel-Cell and Ultracapacitors Energy System. Dedalo 2.0

Artal¹,

Domínguez²,

Caraballo³

2024

RE&PQJ

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This paper presents a hybrid configuration combining a hydrogen fuel cell and ultracapacitors to create an energy storage system. Hybrid topology is constructed using a SEPIC converter, which connects the fuel cell with the DC bus whereas a bidirectional Buck-Boost converter links the ultracapacitors group with the DC bus. The main aim is to increase the efficiency of the hybrid power system applied about an autonomous mobile robot. An active Fuel Cell voltage control strategy is presented to manage the power flows. In addition, the overall efficiency of the proposed hybrid power system at overload operation is higher than the conventional one. In this paper, an autonomous mobile robot was converted from a conventional lead-acid or lithium-ion battery to a hybrid PEM Fuel-Cell and ultracapacitors as the power source. The integration of UCaps as element of energy storage on the robot was studied with the aim to improve the energetic solution.

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Electrical Characteristic Study of a Hybrid PEMFC and Ultracapacitor System

Cited by 78 publications

References 27 publications

Proton Exchange Membrane Fuel Cell Operation and Degradation in Short‐Circuit

Proton Exchange Membrane Fuel Cell Operation and Degradation in Short‐Circuit

Hierarchical control of active hybrid energy storage system (HESS) in DC microgrids

Autonomous Mobile Robot With Hybrid Pem Fuel-Cell and Ultracapacitors Energy System. Dedalo 2.0

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