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Transient Analysis of PEM Fuel Cell for Hybrid Vehicle Application

[+] Author Affiliations
Ivan Arsie, Alfonso Di Domenico, Cesare Pianese, Marco Sorrentino

University of Salerno, Salerno, Italy

Paper No. FUELCELL2005-74049, pp. 601-612; 12 pages
doi:10.1115/FUELCELL2005-74049
From:
  • ASME 2005 3rd International Conference on Fuel Cell Science, Engineering and Technology
  • 3rd International Conference on Fuel Cell Science, Engineering and Technology
  • Ypsilanti, Michigan, USA, May 23–25, 2005
  • Conference Sponsors: Nanotechnology Institute
  • ISBN: 0-7918-3764-5 | eISBN: 0-7918-3757-2
  • Copyright © 2005 by ASME

abstract

The paper focuses on the simulation of a hybrid vehicle with proton exchange membrane fuel cell as the main energy conversion system. A modeling structure has been developed to perform accurate analysis for powertrain and control system design. The models simulate the dynamics of the main powertrain elements and fuel cell system to give a sufficient description of the complex interaction between each component under real operating conditions. A control system based on a multi-level scheme has also been introduced and the complexity of control issues for hybrid powertrains have been discussed. Such a study has been performed to analyze the energy flows among the powertrain components. The results highlight that optimizing these systems is not a trivial task and the use of precise models can improve the powertrain development process. Furthermore, the behavior of system state variables and the influence of control actions on fuel cell operation have also been analyzed. Particularly, the effects of the introduction of a rate limiter on the stack power have been investigated, evidencing that a 2 kW/s rate limiter increased the system efficiency by 10% while reducing the dynamic performances of the powertrain in terms of speed error (i.e. 25 %).

Copyright © 2005 by ASME

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