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Modelling of Proton Exchange Membrane Fuel Cells with Sinusoidal Approach.

Catalina González-Castaño1,2, Yahya Aalaila3, Carlos Restrepo4,5

  • 1Centro de Transformación Energética, Facultad de Ingeniería, Universidad Andres Bello, Santiago 7500971, Chile.

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Summary
This summary is machine-generated.

A new sinusoidal model accurately estimates proton-exchange membrane fuel cell (PEMFC) voltage from current, aiding prototype design and fault diagnosis. This validated approach offers a cost-effective alternative to extensive experimental studies.

Keywords:
Evolution StrategyGaussian modelSinusoidal modeldiffusive modelproton exchange membrane fuel cellvoltage-current dynamic response

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Area of Science:

  • Energy Systems
  • Electrochemical Engineering
  • Computational Modeling

Background:

  • Proton-exchange membrane fuel cells (PEMFCs) require accurate models for efficient design and operation.
  • Simulation and hardware emulation are crucial for cost-effective prototype development, testing, and fault diagnosis.
  • Existing models may not fully capture the complex voltage-current characteristics of PEMFCs.

Purpose of the Study:

  • To validate a novel sinusoidal model for PEMFCs.
  • To accurately estimate PEMFC voltage based on operating current.
  • To provide a supplementary tool for experimental studies in PEMFC development.

Main Methods:

  • Development of a sinusoidal mathematical model for PEMFCs.
  • Testing and validation of the model using experimental data from a Ballard Nexa 1.2 kW fuel cell.
  • Comparative analysis of the sinusoidal model against the Diffusive Global model and Evolution Strategy.

Main Results:

  • The sinusoidal model accurately estimates the static and current-voltage characteristics of the PEMFC across three regions of operation.
  • Experimental validation confirmed the model's effectiveness.
  • The proposed model demonstrated superiority compared to the Diffusive Global model and Evolution Strategy.

Conclusions:

  • The sinusoidal model is a promising and effective approach for PEMFC voltage estimation.
  • This validated model can significantly reduce costs associated with prototype design, testing, and fault diagnosis.
  • The sinusoidal model offers a valuable tool for advancing PEMFC research and development.