Talks and Poster Presentations (with Proceedings-Entry):
A. Caldevilla, F. Pirker, F. Conte:
"Decision Criteria for an Energy Storage System utilizing Lithium-Ion Batteries for an Electric Scooter";
Talk: 2nd European Ele-Drive Transportation Conference,
Brüssel (invited);
2007-05-30
- 2007-06-01; in: "On the Way to sustainable Development and Market Opening",
EET European Ele-Drive (ed.);
(2007),
7 pages.
English abstract:
The purpose of this study was to assess the possible co-operation of a Li-Ion battery with supercaps (double layer capacitors). With intelligent energy storage management the potential efficiency and performance of the system was investigated. These two variants were compared and evaluated: Li-Ion battery alone versus battery plus supercaps. An energy storage system with only supercaps was also evaluated but eliminated due to limited energy capacity.
For the purpose of investigating this promising technology, a model was developed in DymolaŽ using new generation energy storage (either a Li-Ion battery or a Li-Ion battery with supercaps) connected to an escooter drive train. An intelligent regulation of the hybrid energy storage assures the best system performance. DymolaŽ was chosen as the simulation program due to its flexibility, making it a versatile
tool perfect for modeling and simulation of new alternative designs and technologies.
Different real-life city profiles with a scooter were tested in the model to determine the energy which the hybrid energy storage should contain in order to satisfy both the consumption and power requirements of a random average city trip. The influence of the size of the Li-Ion battery and the supercaps was also taken into consideration.
The results of this investigation made possible an accurate determination of the size of the energy package to be implemented in the vehicle, preventing an oversizing of the battery (to be able to deal with the power peaks in the case of a single Li-Ion battery) or a too small cruising range (for example in the hypothetical
case of a pure supercaps package).
Keywords:
lithium-ion battery, supercaps, simulation, DymolaŽ, energy management
Created from the Publication Database of the Vienna University of Technology.