In this paper, a dynamic model of the solid-oxide fuel cell (SOFC) power unit is developed for the purpose of designing a controller to regulate fuel flow rate, fuel temperature, air flow rate, and air temperature to maintain the SOFC stack temperature, fuel utilization rate, and voltage within operation limits. A lumped model is used to consider the thermal dynamics and the electro-chemial dynamics inside an SOFC power unit. The fluid dynamics at the fuel and air inlets are considered by using the in-flow ramp-rates.
Revised: January 21, 2008 |
Published: June 28, 2007
Citation
Lu N., Q. Li, X. Sun, and M.A. Khaleel. 2007.Dynamic Modeling in Solid-Oxide Fuel Cells Controller Design. In 2007 IEEE Power Engineering Society General Meeting. Piscataway, New Jersey:Institute of Electrical & Electronics Engineers.PNNL-SA-51233.doi:10.1109/PES.2007.385638