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Efficiency of super capacitor banks used in regenerative breaking in hybrid electric vehicles

Napier, David (2009) Efficiency of super capacitor banks used in regenerative breaking in hybrid electric vehicles. Other thesis, Murdoch University.

Abstract

The aim of this project was to build a supercapacitor bank, dc to dc converter, and testing rig to perform efficiency testing for various configurations of the super capacitor bank against various hybrid electric vehicle regenerative braking profiles. A bank of 10 25F cells was constructed along with a bidirectional DC to DC converter allowing practical testing of two of the four possible bank configurations. An average of 55% and 63% end to end efficiency was found for the two configurations respectively when tested under three different scaled regenerative braking profiles. It was found that capacitor banks with a higher maximum voltage i.e. more cells in series were more efficient as there were lower input and output currents and most of losses were restricted to the converter.

Publication Type: Thesis (Other)
Murdoch Affiliation: School of Engineering and Energy
Supervisor: Crebbin, Gregory
URI: http://researchrepository.murdoch.edu.au/id/eprint/3243
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