A basic study on construction of the emulator of fuel cell

Recently, fuel cells prevail around the world. However, it is difficult to construct a power converter system including fuel cells with low cost. Therefore, a fuel cell emulator is needed when we design a power converter system including fuel cells. In order to construct the fuel cell emulator, it is required the model which represents electrical characteristics of fuel cell. However, electrochemical background is not taken account of in conventional model^[1], in particular in low frequency region. Thus, we consider construction method of electrical model of fuel cell based on electrochemical behavior in this paper. And we validated the proposed emulator using step response and obtained good result.