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Interval Methods for Robust Sliding Mode Control Synthesis of High-Temperature Fuel Cells with State and Input Constraints

  • Andreas RauhEmail author
  • Luise Senkel
Chapter
Part of the Mathematical Engineering book series (MATHENGIN)

Abstract

Fuel cell systems provide a way to produce electric energy in future decentralized power supply grids. In the case of using high-temperature fuel cells, it becomes possible to exploit not only the provided electric power but also the process heat in order to maximize the overall system efficiency. However, the efficiency maximization goes along with a high flexibility with respect to temporal variations of the electric power that is demanded by corresponding consumers. Such power variations impose restrictions on intelligent fuel cell control systems. Such control strategies do not only have to make sure that the supplied fuel gas (typically hydrogen and mixtures with methane or carbon monoxide) is stoichiometrically balanced with the demanded electric power. It is also inevitable to control the fuel cell itself from a thermodynamic point of view. This control has to make sure that sufficiently smooth temperature trajectories can be tracked during the heating phase of the system and that a priori unknown but bounded disturbances are robustly compensated at high-temperature operating points. For this purpose, interval-based sliding mode control procedures can be implemented. This contribution gives an overview of how interval methods can be combined with the fundamental sliding mode methodology in a variable-structure control synthesis. The efficiency of the presented methods is highlighted for the control of solid oxide fuel cells in various simulations.

Keywords

Second-order Sliding Mode High Temperature Fuel Cells Fuel Cell Sliding Mode Control Approach SOFC Stack 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer International Publishing Switzerland 2016

Authors and Affiliations

  1. 1.Chair of MechatronicsUniversity of RostockRostockGermany

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