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The Control Strategy for a Solid Oxide Fuel Cell Hybrid System

[+] Author Affiliations
Jarosław Milewski, Andrzej Miller, Antoni Dmowski, Piotr Biczel

Warsaw University of Technology, Warsaw, Poland

Paper No. GT2009-59050, pp. 13-20; 8 pages
doi:10.1115/GT2009-59050
From:
  • ASME Turbo Expo 2009: Power for Land, Sea, and Air
  • Volume 4: Cycle Innovations; Industrial and Cogeneration; Manufacturing Materials and Metallurgy; Marine
  • Orlando, Florida, USA, June 8–12, 2009
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-4885-2 | eISBN: 978-0-7918-3849-5
  • Copyright © 2009 by ASME

abstract

Based on mathematical modelling and numerical simulations, the control strategy for a Solid Oxide Fuel Cell Hybrid System (SOFC-HS) is presented. Adequate maps of performances with three independent parameters are shown. These independent parameters are as follows: stack current, fuel mass flow and turbine-compressor shaft speed. To control external load, those parameters should be appropriately chosen. The control system is purposed to meet many constraints: e.g. stack temperature, steam-to-carbon ratio, compressor surge limitation etc. The aim is to achieve maximum efficiency of power generated within those constraints. Governing equations of SOFC-HS modelling are given. An adequate simulator for the SOFC module was produced and described. Based on this simulator, the control strategy was obtained. The performance of this SOFC-HS is shown in various working environments.

Copyright © 2009 by ASME

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