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Energy Storage Options for Hybrid Diesel Electric Shunting Locomotives

Access Status
Open access
Authors
Wolfs, Peter
Date
2005
Type
Conference Paper

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Citation
Wolfs, Peter. 2005. Energy Storage Options for Hybrid Diesel Electric Shunting Locomotives, in Negnvitsky, M. (ed), Australasian Universities Power Engineering Conference AUPEC 2005, Sep 25 2005, pp. S123-S123. Hobart, Tasmania: University of Tasmania.
Source Title
Australasian Universities Power Engineering Conference
Source Conference
Australasian Universities Power Engineering Conference AUPEC 2005
ISBN
Faculty
Department of Electrical and Computer Engineering
School of Engineering
Faculty of Science and Engineering
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Abstract

Shunting locomotives are required to produce high powers during shunting operations but may be idle for many hours each day. A key issue with a hybrid conversion is battery life. Shunting locomotives are required to develop typically 1000hp to 2000hp for periods of perhaps a few minutes and the battery is sized for its capacity to deliver instantaneous power. This paper will examine typical shunting duty cycles for a 1000 hp case study where a 520Ah 880V battery is applied. Methods of estimating battery life based on amp-hours exchanged with correction factors for time duration and peak currents are explored. Alternate storage devices such as ultra capacitors can provide methods of significantly reducing the peak battery discharge current and could potentially halve the battery mass.