Control strategy with saturation management of a fuel cell/ultracapacitors hybrid vehicule

In this paper, a new control strategy including saturation management of hybrid fuel cell/ultracapacitors power source is described. First, an analysis of hybrid architectures using fuel cells and ultracapacitors for automotive applications is presented. Then, a two-converter parallel configuration is more precisely detailed. The model and the control strategy are described using the Energetic Macroscopic Representation (EMR). So, the main originality of this paper is based on the consideration of the systems limits. This leads to a very complete Energy Management Strategy, which has been evaluated and validated in simulation.