Abstract:
This paper presents a linearized dynamic model of a Solid Oxide Fuel Cell (SOFC) and its performance test under DC operation conditions. The model based on electrochemical, Nernst voltage equations and all voltage losses. The output voltage response of a stand-alone fuel-cell plant to a step load change, a fuel flow step change, and fast load variations are simulated to illustrate the dynamic behavior of SOFC for fast and slow perturbations. However, the partial pressure of the species (fuel, air, and water) in the distributed model is assumed to vary through the length of the fuel cell. After developing a linearized model, we check the stability of our system.
SOFC model is developed on MATLAB environment. The performance of this model is compared with a detailed distributed model and experimental results. A method for interfacing the proposed fuel-cell models to a power system stability package is developed
