Simulated lifecycle costs of ultracapacitors in battery electric vehicles
Simpson, Andrew G., Sernia, Paul C., & Walker, Geoffrey R. (2001) Simulated lifecycle costs of ultracapacitors in battery electric vehicles. In Islam, S.M., Borle, L., & Keerthipala, W.W.L. (Eds.) Proceedings of the Australasian Universities Power Engineering Conference (AUPEC-2001) : millennium power vision, Australasian Committee for Power Engineering, Perth, WA, pp. 176-181.
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 (BEVs) 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 a custom-built, dynamic simulation code constructed in Matlab. Despite apparent gains in system efficiency and driving range, the lifecycle cost benefits as simulated appear to be marginal, and are heavily influenced by the incremental cost of power components. However, additional factors are identified which, in reality, will drive ultracapacitors towards viability in electric vehicle applications.
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