Multiple-input DC-DC power converter for power-flow management in hybrid vehicles

Abstract
The search for a compact, lightweight, and efficient energy storage system (battery and/or combination of other emerging technologies, including ultracapacitors, flywheel energy storage system, advanced batteries, and fuel cells) that is both affordable and has acceptable cycle life remains the major roadblock to large-scale production of EVs and HEVs. In this paper a multiple input DC-DC power converter (MI-PEC) devoted to combine the power flowing from combined on-board energy sources is presented; the proposed arrangement for the propulsion system includes electric generator (EG), ultracapacitor tank (UC) and battery systems.

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