Control and management of cathode airflow in a solid oxide fuel cell gas turbine hybrid power system was analyzed using the Hybrid Performance (HyPer) hardware simulation at the National Energy Technology (NETL), U.S. Department of Energy. This work delves into previously unexplored operating practices for HyPer, via simultaneous manipulation of bypass valves and the electric load on the generator. The work is preparatory to the development of a Multi-Input, Multi-Output (MIMO) controller for HyPer. A factorial design of experiments was conducted to acquire data for 81 different combinations of the manipulated variables, which consisted of three air flow control valves and the electric load on the turbine generator. From this data the response surface for the cathode airflow with respect to bypass valve positions was analyzed. Of particular interest is the control of airflow through the cathode during system startup and during large load swings. This paper presents an algorithm for controlling air mass flow through the cathode based on a modification of the steepest ascent method.
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ASME 2011 9th International Conference on Fuel Cell Science, Engineering and Technology collocated with ASME 2011 5th International Conference on Energy Sustainability
August 7–10, 2011
Washington, DC, USA
Conference Sponsors:
- Advanced Energy Systems Division
ISBN:
978-0-7918-5469-3
PROCEEDINGS PAPER
Control Valve Trajectories for SOFC Hybrid System Startup Available to Purchase
Megan Gorrell,
Megan Gorrell
National Energy Technology Laboratory; West Virginia University, Morgantown, WV
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Larry Banta,
Larry Banta
National Energy Technology Laboratory; West Virginia University, Morgantown, WV
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William Rosen,
William Rosen
National Energy Technology Laboratory; West Virginia University, Morgantown, WV
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Bernardo Restrepo,
Bernardo Restrepo
National Energy Technology Laboratory; West Virginia University, Morgantown, WV
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David Tucker
David Tucker
National Energy Technology Laboratory, Morgantown, WV
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Megan Gorrell
National Energy Technology Laboratory; West Virginia University, Morgantown, WV
Larry Banta
National Energy Technology Laboratory; West Virginia University, Morgantown, WV
William Rosen
National Energy Technology Laboratory; West Virginia University, Morgantown, WV
Bernardo Restrepo
National Energy Technology Laboratory; West Virginia University, Morgantown, WV
David Tucker
National Energy Technology Laboratory, Morgantown, WV
Paper No:
FuelCell2011-54144, pp. 929-935; 7 pages
Published Online:
March 22, 2012
Citation
Gorrell, M, Banta, L, Rosen, W, Restrepo, B, & Tucker, D. "Control Valve Trajectories for SOFC Hybrid System Startup." Proceedings of the ASME 2011 9th International Conference on Fuel Cell Science, Engineering and Technology collocated with ASME 2011 5th International Conference on Energy Sustainability. ASME 2011 9th International Conference on Fuel Cell Science, Engineering and Technology. Washington, DC, USA. August 7–10, 2011. pp. 929-935. ASME. https://doi.org/10.1115/FuelCell2011-54144
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