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Title

Performance of diagonal control structures at different operating conditions for polymer electrolyte membrane fuel cells

AuthorsSerra, Maria CSIC ORCID ; Husar, Attila CSIC ORCID ; Feroldi, Diego CSIC ORCID; Riera, Jordi CSIC
KeywordsPEMFC
Diagonal control
PI controllers
Operating conditions
Linear analysis
Efficiency
Issue Date2006
PublisherElsevier
CitationJournal of Power Sources 158(2): 1317-1323 (2006)
AbstractThis work is focused on the selection of operating conditions in polymer electrolyte membrane fuel cells. It analyses efficiency and controllability aspects, which change from one operating point to another. Specifically, several operating points that deliver the same amount of net power are compared, and the comparison is done at different net power levels. The study is based on a complex non-linear model, which has been linearised at the selected operating points. Different linear analysis tools are applied to the linear models and results show important controllability differences between operating points. The performance of diagonal control structures with PI controllers at different operating points is also studied. A method for the tuning of the controllers is proposed and applied. The behaviour of the controlled system is simulated with the non-linear model. Conclusions indicate a possible trade-off between controllability and optimisation of hydrogen consumption.
DescriptionSpecial issue including selected papers from the 6th International Conference on Lead-Acid Batteries (LABAT 2005, Varna, Bulgaria) and the 11th Asian Battery Conference (11 ABC, Ho Chi Minh City, Vietnam) together with regular papers.
Publisher version (URL)http://dx.doi.org/10.1016/j.jpowsour.2005.10.092
URIhttp://hdl.handle.net/10261/30575
DOI10.1016/j.jpowsour.2005.10.092
ISSN0378-7753
Appears in Collections:(IRII) Artículos




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