Lifecycle costs of ultracapacitors in electric vehicle applications

Simpson, Andrew G. & Walker, Geoffrey R. (2002) Lifecycle costs of ultracapacitors in electric vehicle applications. In Proceedings of IEEE 33rd Annual Power Electronics Specialists Conference, IEEE, Cairns, QLD, pp. 1015-1020.

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The pulse power characteristics of ultracapacitors appear well suited to electric vehicle applications, where they may supply the peak power more efficiently than the battery, and can prevent excessive over sizing of the battery pack due to peak power demands. Operation of ultracapacitors in battery electric vehicles is examined for possible improvements in system efficiency, vehicle driving range, battery pack lifetime, and potential reductions in system lifecycle cost. The lifecycle operation of these ultracapacitors is simulated using custom-built, dynamic simulation code constructed in Matlab. Despite apparent gains in system efficiency and driving range, the results strongly suggest that the inclusion of ultracapacitors in the electric vehicle does not make sense from a lifecycle cost perspective. Furthermore, a comparison with results from earlier work shows that this outcome is highly dependant upon the efficiency and cost of the battery under consideration. However, it is likely that the lifecycle cost benefits of ultracapacitors in these electric vehicles would be, at most, marginal and do not justify the additional capital costs and system complexity that would be incurred in the vehicle

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1 citations in Web of Science®

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ID Code: 63577
Item Type: Conference Paper
Refereed: No
Additional Information: Also available on CD-ROM in PDF format 7426003 electric vehicle applications pulse power characteristics ultracapacitor lifecycle costs battery electric vehicles efficiency driving range battery pack lifetime dynamic simulation code
Keywords: capacitor storage, electric vehicles, life cycle costing, power capacitors, pulsed power supplies, secondary cells
DOI: 10.1109/PSEC.2002.1022588
ISBN: 078037262X
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > AUTOMOTIVE ENGINEERING (090200) > Hybrid Vehicles and Powertrains (090205)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > ELECTRICAL AND ELECTRONIC ENGINEERING (090600) > Industrial Electronics (090603)
Divisions: Current > Schools > School of Electrical Engineering & Computer Science
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2002 IEEE
Deposited On: 04 Mar 2014 23:29
Last Modified: 04 Mar 2014 23:29

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