Experimental real-time optimization of a solid oxide fuel cell stack via constraint adaptation

Gene A. Bunin, Zacharie Wuillemin, Grégory François, Arata Nakajo, Leónidas Tsikonis, Dominique Bonvin*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The experimental validation of a real-time optimization (RTO) strategy for the optimal operation of a solid oxide fuel cell (SOFC) stack is reported in this paper. Unlike many existing studies, the RTO approach presented here utilizes the constraint-adaptation methodology, which assumes that the optimal operating point lies on a set of constraints and then seeks to satisfy those constraints in practice via bias update terms. These biases correspond to the difference between predicted and measured outputs and are updated at each steady-state iteration allowing the RTO to successfully meet the optimal operating conditions of a 6-cell SOFC stack, despite significant plant-model mismatch. The effects of the bias update filter values and of the RTO frequency on the power tracking and constraint handling are also investigated.

Original languageEnglish
Title of host publicationProceedings of the 23rd International Conference on Efficiency, Cost, Optimization, Simulation, and Environmental Impact of Energy Systems, ECOS 2010
PublisherAabo Akademi University
Pages141-148
Number of pages8
Volume5
ISBN (Print)9781456303204
Publication statusPublished - 2010
Event23rd International Conference on Efficiency, Cost, Optimization, Simulation, and Environmental Impact of Energy Systems, ECOS 2010 - Lausanne, Switzerland
Duration: 14 Jun 201017 Jun 2010

Conference

Conference23rd International Conference on Efficiency, Cost, Optimization, Simulation, and Environmental Impact of Energy Systems, ECOS 2010
CountrySwitzerland
CityLausanne
Period14/06/1017/06/10

Keywords

  • Applied fuel cell modeling
  • Constraint adaptation
  • Optimal fuel cell performance
  • Real-time optimization
  • SOFC load tracking
  • SOFC operation

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