CIFASIS 20631
CENTRO INTERNACIONAL FRANCO ARGENTINO DE CIENCIAS DE LA INFORMACION Y DE SISTEMAS
Unidad Ejecutora - UE
artículos
Título:
Robust Real-Time Optimization of a Solid Oxide Fuel Cell Stack
Autor/es:
A. MARCHETTI; A. GOPALAKRISHNAN; L. TSIKONIS; A. NAKAJO; Z. WUILLEMIN; B. CHACHUAT; J. VAN HERLE; D. BONVIN
Revista:
Journal of Fuel Cell Science and Technology
Editorial:
ASME
Referencias:
Año: 2011 vol. 8 p. 1 - 11
ISSN:
1550-624X
Resumen:
On-line control and optimization can improve the efficiency of fuel cell systems whilst simultaneously ensuring that the operation remains within a safe region. Also, fuel cells are subject to frequent variations in their power demand. This paper investigates the real-time optimization (RTO) of a solid oxide fuel cell (SOFC) stack. An optimization problem maximizing the efficiency subject to operating constraints is defined. Due to inevitable model inaccuracies, the open-loop implementation of optimal inputs evaluated off-line may be suboptimal, or worse, infeasible. Infeasibility can be avoided by controlling the constrained quantities. However, the constraints that determine optimal operation might switch with varying power demand, thus requiring a change in the regulator structure.
