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Power Management of an Ultracapacitor/Battery Hybrid Energy Storage System in an HEV

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5 Author(s)
Lukic, S.M. ; Lab. of Grainger Power Electron. & Motor Drives, Illinois Inst. of Technol., Chicago, IL ; Wirasingha, S.G. ; Rodriguez, F. ; Cao, J.
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To overcome the power delivery limitations of batteries and energy storage limitations of ultracapacitors, hybrid energy storage systems, which combine the two energy sources, have been proposed. A comprehensive review of the state of the art is presented. In addition, a method of optimizing the operation of a battery/ultracapacitor hybrid energy storage system (HESS) is presented. The goal is to set the state of charge of the ultracapacitor and the battery in a way which ensures that the available power and energy is sufficient to supply the drivetrain. By utilizing an algorithm where the states of charge of both systems are tightly controlled, we allow for the overall system size to reduce since more power is available from a smaller energy storage system

Published in:

Vehicle Power and Propulsion Conference, 2006. VPPC '06. IEEE

Date of Conference:

6-8 Sept. 2006