Power electronic converters distribution in HOST hybrid propulsion system

Abstract

This paper deals with the design of power electronic converters to be used in the hybrid propulsion system of a multi-functions vehicle. A modern hybrid vehicle arrangement consists of one internal combustion engine, one or more electrical machines, storage systems based either on batteries or ultracapacitors; a number of power electronic converters are then required to control the power flows among generation unit, storage unit and traction drives. In this paper, prototypes of the power electronic converters being used on-board the HOST (Human Oriented Sustainable Transport mean) vehicle are proposed, and description of the converters' control loops is given for the on-board power distribution system.