Thermal and electrical model of fuel cell in connected to grid/isolated mode

The fuel cell based distributed generation (DG) system are gaining more attention due to stationary operation, reliable power and less maintenance. Among the different types of fuel cell, one of the high temperatures operating promising Solid Oxide Fuel Cell (SOFC) is preferred due to reliable operation and co-generation purpose. This paper presents the thermal and electrical model of SOFC in connected to the grid and isolated model of operation through power electronics interfacing circuit. The developed model SOFC includes the mathematical expression for thermal and electrical parameter variation inside the fuel cell. The developed model for this study is implemented using Matlab/Simulink environment and the simulation results reported in this paper validated the load following performance of SOFC based DG system.