6-phase soft-switching Interleaved Boost Converter based on SiC semiconductor for Fuel Cell Vehicles
Résumé
This paper deals with the design of a DC/DC boost converter aimed at Fuel Cell Vehicle (FCV) application. In order to extend the FC lifespan and to increase the reliability, efficiency and power density, a DC/DC boost converter should be designed with the following features: low current ripple, low weight, low volume, and high redundancy. In this study, a 6-phase Interleaved Boost Converter (IBC) is firstly chosen to satisfy the above requirements. Then, in order to further decrease the power losses of the system, power switches based on Silicon Carbide semiconductors and simple auxiliary circuits for soft-switching have been adopted.