期刊
ENERGIES
卷 14, 期 22, 页码 -出版社
MDPI
DOI: 10.3390/en14227693
关键词
polymer electrolyte membrane fuel cell; control-oriented model; physically motivated model; water modeling; liquid water effects; analytical differentiable model
资金
- Mobility of the Future program
- program of the Republic of Austria
- Ministry of Climate Action
- Austrian Research Promotion Agency (FFG) has been authorized for the program management
- Slovenian Research Agency
- CD Laboratory for Innovative Control and Monitoring of Automotive Powertrain Systems
- TU Wien Bibliothek
This paper introduces a control-oriented PEMFC stack model with a focus on physically motivated water modeling, providing valuable insights into water mechanisms for deriving efficient water management control strategies.
Polymer electrolyte membrane fuel cells (PEMFCs) are prone to membrane dehydration and liquid water flooding, negatively impacting their performance and lifetime. Therefore, PEMFCs require appropriate water management, which makes accurate water modeling indispensable. Unfortunately, available control-oriented models only replicate individual water-related aspects or use oversimplistic approximations. This paper resolves this challenge by proposing, for the first time, a control-oriented PEMFC stack model focusing on physically motivated water modeling, which covers phase change, liquid water removal, membrane water uptake, and water flooding effects on the electrochemical reaction. Parametrizing the resulting model with measurement data yielded the fitted model. The parameterized model delivers valuable insight into the water mechanisms, which were thoroughly analyzed. In summary, the proposed model enables the derivation of advanced control strategies for efficient water management and mitigation of the degradation phenomena of PEMFCs. Additionally, the model provides the required accuracy for control applications while maintaining the necessary computational efficiency.
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