Supervised bidirectional DC/DC converter for intelligent fuel cell vehicles energy management

Abstract

In this paper a novel supervisory control strategy, named "recovery", is presented and discussed at length, considering the converter as an hybrid system, widely explored in recent years due to an increasing necessity for interaction between continuous plants and discrete events supervisors, able to steer the plant behavior towards a desired path. A strategy similar to Recovery mode, named "Buffer" strategy, has been successfully implemented and experimentally tested for an aeronautical 4-modules interleaved DC/DC converter, where typical voltages at the converter terminals are 28V and 270V, and military standards must be respected to avoid Power Quality impairments. Thus, a variant of this strategy in the automotive application area will be investigated in this paper.