A model–based analysis of PEM fuel cell distribution of relaxation times

Kulikovsky, Andrei

doi:10.1016/j.electacta.2022.141046

Cited by 12 publications

(2 citation statements)

References 18 publications

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“…For the development of PEMFC systems, mathematical modeling is a powerful tool for simulation, exploration of control strategies, prediction, and understanding of power generation system behavior [9]- [11]. A wide variety of models that can be classified as 0-D to 3-D models [12], empirical and semi-empirical models [13], analytical models [14], statistical physics-based models [15], [16], and performance and fault diagnosis models [17], [18] have been developed. The models that are most suited to the purpose of a microgrid or electrical emulator development are the equivalent Electronic Circuit Models (ECM) since these models allow describing the electrical behavior of the PEMFC or how it interacts with power conditioning circuits such as converters and other connected electrical systems [19].…”

Section: Introductionmentioning

confidence: 99%

Development of an Equivalent Electronic Circuit Model for PEMFC Voltage Based on Different Input Electrical Currents

Hernández-Gómez,

Langarica-Cordoba,

Martinez-Rodriguez

et al. 2023

IEEE Access

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The technological development and exploration of the proton exchange membrane fuel cell have relied on several mathematical models. However, despite the wide variety of models, the equivalent electronic circuit model is the most suitable for describing electrical behavior, designing electronic interfaces, and analyzing control and reliability strategies. In addition to the fact that this type of model is scarce to model the fuel cell voltage, an equivalent electronic circuit model that depends only on the input current has not been reported (in general, the reported mathematical models take into account additional variables such as humidity, temperature, pressure, etc.). For this reason, this work focuses on developing an equivalent electronic circuit model for the fuel cell voltage that depends only on the input current. Besides, the configuration of the proposed circuit (one voltage source, two capacitors, and three resistors) is simpler than the circuits proposed in previous works. To validate the model and its parameters, current tests from 1.2 kW Nexa ® fuel cell power module were used. The comparison between the experimental data and the developed model confirms the efficiency of the equivalent electronic circuit model to reproduce the fuel cell voltage as a function of the current.INDEX TERMS Adaptive parameters, circuit electronic modeling, fuel cell voltage, proton exchange membrane fuel cell.

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Section: Introductionmentioning

confidence: 99%

Development of an Equivalent Electronic Circuit Model for PEMFC Voltage Based on Different Input Electrical Currents

Hernández-Gómez,

Langarica-Cordoba,

Martinez-Rodriguez

et al. 2023

IEEE Access

View full text Add to dashboard Cite

show abstract

“…Mathematical models are essential for the development of PEMFC emulators [15]. However, despite the wide variety of models developed for PEMFCs [16][17][18][19][20][21][22][23][24][25], those that are most suited to the purpose of emulator development are the equivalent electronic circuit models (ECMs) because these models are fit to describe the electrical behavior of a PEMFC or how the PEMFC interacts with the associated electrical systems and power conditioning circuits such as power electronics [26]. In addition, ECMs aid with electronic interface design and control and reliability test analysis [27,28].…”

Section: Introductionmentioning

confidence: 99%

PEM Fuel Cell Emulators: A Review

et al. 2023

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Proton exchange membrane fuel cell (PEMFC) emulators are feasible solutions for conducting low-cost and safe developments. These types of systems have attracted the attention of global PEMFC manufacturers and research groups over the last few years. Owing to these emulators, it has been possible to develop and optimize PEMFC systems including power electronics and control without the need to use or damage a real PEMFC. However, despite the importance of PEMFC emulators in research, reported studies on this topic remain scarce. For this reason, this review describes the main characteristics and different types of PEMFC emulators (i.e., pseudo and electronic emulators), providing a basis for new emulator prototypes. Additionally, in this paper, the mathematical models that complement PEMFC emulators are presented (i.e., these models and emulators generate reliable measurements compared with real PEMFC systems). Examples of electronic circuit designs based on mathematical models (electrical and heat) are also presented to give some insight into the construction of new PEMFC emulators. Therefore, this paper proposes tools for the construction of new PEMFC emulators to boost the development of this technology.

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Electrochemical Impedance Spectroscopy as a Characterization Method for Enzymatic Fuel Cell Bioanodes

Torrigino,

Nagel,

Hartmann

et al. 2024

ChemElectroChem

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Enzymatic fuel cells (EFCs) offer renewable energy conversion via highly selective electrode reactions using enzymes as natural catalysts even under mild conditions. Electrochemical impedance spectroscopy (EIS) is a valuable tool for evaluating EFC performance, providing insights into substrate mass transport, enzyme kinetics, and electrode stability. Despite its acknowledged importance, the use of EIS coupled with distribution of relaxation times (DRT) analysis in EFCs research is limited. Our study addresses this gap by employing EIS and DRT analysis to investigate enzyme‐based anodic processes, focusing on the bioelectrocatalytic oxidation of glucose catalyzed by glucose oxidase (GOx). Through careful variation of multiple parameters, it was possible to identify three distinct regions in the DRT plot. Each region has been subsequently associated with a key anodic process. The first region (R1) is associated with high‐frequency phenomena occurring at the electrodes, primarily due to ionic conduction in the electrolyte. Intermediate‐frequency processes are associated to charge transfer kinetics in region 2 (R2). Region 3 (R3) is linked to diffusion processes occurring at low frequencies. This thorough examination offers an insight into the functioning of enzymatic bioelectrodes, which in turn drives improvements in the design and components of biofuel cells to increase their power output.

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A model–based analysis of PEM fuel cell distribution of relaxation times

Cited by 12 publications

References 18 publications

Development of an Equivalent Electronic Circuit Model for PEMFC Voltage Based on Different Input Electrical Currents

Development of an Equivalent Electronic Circuit Model for PEMFC Voltage Based on Different Input Electrical Currents

PEM Fuel Cell Emulators: A Review

Electrochemical Impedance Spectroscopy as a Characterization Method for Enzymatic Fuel Cell Bioanodes

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