ABSTRACT
For preliminary fuel cell power system planning, stability analysis, control strategy synthesis, and evaluation, an appropriate dynamic model of a fuel cell system is desired. Since the existing control-oriented models [1–3] do not contain all water components, which are one of the important factors of fuel cell systems [4], it is difficult to design an accurate dynamic fuel cell model based on the existing models. The main motivation for developing dynamic models of PEMFCs is to facilitate the design of control strategies with objectives such as to ensure good load-following performance, to prevent fuel cell stack damage, and to prolong the stack life by controlling the anode and cathode gases pressures. In this chapter, various models of PEMFCs will be described. Using these models of PEMFCs, appropriate controllers of fuel cell systems can be designed as described in Chapter 5.
