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dc.contributor.authorSchumacher, Jürgen-
dc.contributor.authorGemmar, Peter-
dc.contributor.authorDenne, Matthias-
dc.contributor.authorZedda, Mario-
dc.contributor.authorStüber, M.-
dc.date.accessioned2018-10-10T11:12:59Z-
dc.date.available2018-10-10T11:12:59Z-
dc.date.issued2004-04-22-
dc.identifier.issn0378-7753de_CH
dc.identifier.issn1873-2755de_CH
dc.identifier.urihttps://digitalcollection.zhaw.ch/handle/11475/11570-
dc.description.abstractA control strategy is presented in this paper which is suitable for miniature hydrogen/air proton-exchange membrane (PEM) fuel cells. The control approach is based on process modelling using fuzzy logic and tested using a PEM stack consisting of 15 cells with parallel channels on the cathode side and a meander-shaped flow-field on the anode side. The active area per cell is 8 cm^2. Commercially available materials are used for the bipolar plates,gas diffusion layers and the membrane-electrode assembly. It is concluded from basic thermodynamic principles that water management at different temperatures can be achieved by controlling the air stoichiometry. This is achieved by varying the fan voltage for the air supply of the PEM stack. A control strategy of the Takagi Sugeno Kang (TSK) type, based on fuzzy logic, is presented. The TSK-type controller offers the advantage that the system output can be computed in an efficient way: the rule consequents of the controller combine the system variables in linear equations. It is shown experimentally that drying out of the membrane at high temperatures can be monitored by measuring the AC impedance of the fuel cell stack at a frequency of 1kHz. Flooding of single cells leads to an abrupt drop of the corresponding single-cell voltage. Therefore, the fuzzy rule base consists of the AC impedance at 1kHz and all single-cell voltages. The parameters of the fuzzy rule base are determined by plotting characteristic diagrams of the fuel cell stack at constant temperatures. Stable system operation is achieved at T=60°C for a power level of 7.5 W. The fuel cell stack is controlled successfully even when the external electric load changes. The maximum power level for stable system operation was found to be 8 W at T=65°C. A decrease of the maximum power level is observed for higher temperatures.de_CH
dc.language.isoende_CH
dc.publisherElsevierde_CH
dc.relation.ispartofJournal of Power Sourcesde_CH
dc.rightsLicence according to publishing contractde_CH
dc.subjectFuzzy logicde_CH
dc.subjectControlde_CH
dc.subjectFuel cellsde_CH
dc.subject.ddc621.3: Elektro-, Kommunikations-, Steuerungs- und Regelungstechnikde_CH
dc.titleControl of miniature proton exchange fuel cells based on fuzzy logicde_CH
dc.typeBeitrag in wissenschaftlicher Zeitschriftde_CH
dcterms.typeTextde_CH
zhaw.departementSchool of Engineeringde_CH
zhaw.organisationalunitInstitute of Computational Physics (ICP)de_CH
dc.identifier.doi10.1016/j.jpowsour.2003.10.010de_CH
zhaw.funding.euNode_CH
zhaw.issue2de_CH
zhaw.originated.zhawNode_CH
zhaw.pages.end151de_CH
zhaw.pages.start143de_CH
zhaw.publication.statuspublishedVersionde_CH
zhaw.volume129de_CH
zhaw.publication.reviewPeer review (Publikation)de_CH
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Schumacher, J., Gemmar, P., Denne, M., Zedda, M., & Stüber, M. (2004). Control of miniature proton exchange fuel cells based on fuzzy logic. Journal of Power Sources, 129(2), 143–151. https://doi.org/10.1016/j.jpowsour.2003.10.010
Schumacher, J. et al. (2004) ‘Control of miniature proton exchange fuel cells based on fuzzy logic’, Journal of Power Sources, 129(2), pp. 143–151. Available at: https://doi.org/10.1016/j.jpowsour.2003.10.010.
J. Schumacher, P. Gemmar, M. Denne, M. Zedda, and M. Stüber, “Control of miniature proton exchange fuel cells based on fuzzy logic,” Journal of Power Sources, vol. 129, no. 2, pp. 143–151, Apr. 2004, doi: 10.1016/j.jpowsour.2003.10.010.
SCHUMACHER, Jürgen, Peter GEMMAR, Matthias DENNE, Mario ZEDDA und M. STÜBER, 2004. Control of miniature proton exchange fuel cells based on fuzzy logic. Journal of Power Sources. 22 April 2004. Bd. 129, Nr. 2, S. 143–151. DOI 10.1016/j.jpowsour.2003.10.010
Schumacher, Jürgen, Peter Gemmar, Matthias Denne, Mario Zedda, and M. Stüber. 2004. “Control of Miniature Proton Exchange Fuel Cells Based on Fuzzy Logic.” Journal of Power Sources 129 (2): 143–51. https://doi.org/10.1016/j.jpowsour.2003.10.010.
Schumacher, Jürgen, et al. “Control of Miniature Proton Exchange Fuel Cells Based on Fuzzy Logic.” Journal of Power Sources, vol. 129, no. 2, Apr. 2004, pp. 143–51, https://doi.org/10.1016/j.jpowsour.2003.10.010.


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