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Modeling hybrid energy systems for use in AUVs

Griffiths, G., Reece, D., Blackmore, P., Lain, M., Mitchell, S. and Jamieson, J. (2005) Modeling hybrid energy systems for use in AUVs In Proceedings of the 14th Unmanned Untethered Submersible Technology (UUST05). Autonomous Underwater Systems Institute. 10 pp, 10pp.

Record type: Conference or Workshop Item (Paper)


Specifying an energy source for an AUV is usually a compromise between performance and cost. For most vehicles and most missions, high specific energy primary lithium batteries are not a practical option due to cost. One solution that shows promise and affordable cost is to use a hybrid approach that combines low cost secondary batteries with a fuel cell or combustion energy source. Exploring the design space for these more complex energy systems requires suitable tools for modelling and assessment. One such tool is VirtualTest Bed. To build confidence in the tool, itssimulations have been assessed against experimentaldata for 18650 lithium ion cells and a Ballard fuel cell,with encouraging results. Subsequently, a conceptual design for a lithium ion battery and fuel cell hybrid energy source was modelled and the performance of two variants assessed for two different 7-day mission scenarios. In both cases, the hybrid system exhibited a specific energy comparable to primary lithium manganese dioxide batteries, with full account taken for the mass overhead of realistic reactant storage for the fuel cell.

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Published date: 2005
Venue - Dates: 14th International Symposium on Unmanned Untethered Submersible Technology (UUST05), 2005-08-21 - 2005-08-24


Local EPrints ID: 23583
PURE UUID: 3f0999d8-94b9-4ae8-bbd1-04f91ae6a6e4

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Date deposited: 27 Mar 2006
Last modified: 17 Jul 2017 16:17

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Author: G. Griffiths
Author: D. Reece
Author: P. Blackmore
Author: M. Lain
Author: S. Mitchell
Author: J. Jamieson

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