Power Electronic Circuit-oriented Model for the Fuel Cell System

In this paper a fuel cell power electronics circuit-oriented simulator model development is discussed. This developed model can be employed in any power electronics simulators and thus useful for the power converter/controller design. From the fundamental chemical properties, the relationship that describes the electrical behavior of cell is obtained first and then parameter affect is included. Circuit synthesis procedure is applied for this relationship and a model is developed using active sources, passive bilateral components and some function blocks that describes the non-linear variations. For validation various v-i characteristics are generated using PSIM power electronics simulator and then compared with the experimentally obtained measurements. The simulated and experimental characteristics are matching each other and thus validate the suitability and modeling approach. The model compatibility with power processing units is also verified and few simulation results are given for demonstration.