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An improved lead acid battery pack model for use in power simulations of electric vehicles

An improved lead acid battery pack model for use in power simulations of electric vehicles
An improved lead acid battery pack model for use in power simulations of electric vehicles
A new model for a lead-acid battery pack is proposed for use in power simulations of electric vehicles. A linear approximation using a constant voltage drop has been used to model the charge-transfer resistance of the battery pack, and an exponential voltage-recovery equation has been used to model the transient capacitance effects following a period of discharge. The new model is easy to implement with simple calculations and easily acquired parameters, combining speed of implementation with accuracy. The new model was found to have a peak error of 3.1% in drive cycle tests, thus comparing favorably to existing models of similar complexity. An initial assessment of the model's suitability for use with a lithium-ion battery pack was also performed, finding a peak error of 5%.

electric vehicles, lead-acid batteries, modeling
0885-8969
21-28
Carter, Rebecca
df20d805-0864-4311-bc1c-cd0532109a69
Cruden, Andrew
ed709997-4402-49a7-9ad5-f4f3c62d29ab
Hall, Peter J.
9b8dd582-8168-469c-b044-26e8ab048128
Zaher, Ammar S.
094a31d7-0c4e-4dd1-bd46-53d3260b7daa
Carter, Rebecca
df20d805-0864-4311-bc1c-cd0532109a69
Cruden, Andrew
ed709997-4402-49a7-9ad5-f4f3c62d29ab
Hall, Peter J.
9b8dd582-8168-469c-b044-26e8ab048128
Zaher, Ammar S.
094a31d7-0c4e-4dd1-bd46-53d3260b7daa

Carter, Rebecca, Cruden, Andrew, Hall, Peter J. and Zaher, Ammar S. (2012) An improved lead acid battery pack model for use in power simulations of electric vehicles. IEEE Transactions on Energy Conversion, 27 (1), 21-28. (doi:10.1109/TEC.2011.2170574).

Record type: Article

Abstract

A new model for a lead-acid battery pack is proposed for use in power simulations of electric vehicles. A linear approximation using a constant voltage drop has been used to model the charge-transfer resistance of the battery pack, and an exponential voltage-recovery equation has been used to model the transient capacitance effects following a period of discharge. The new model is easy to implement with simple calculations and easily acquired parameters, combining speed of implementation with accuracy. The new model was found to have a peak error of 3.1% in drive cycle tests, thus comparing favorably to existing models of similar complexity. An initial assessment of the model's suitability for use with a lithium-ion battery pack was also performed, finding a peak error of 5%.

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More information

e-pub ahead of print date: 15 November 2011
Published date: March 2012
Additional Information: TEC-00020-2001:R1
Keywords: electric vehicles, lead-acid batteries, modeling
Organisations: Mechatronics

Identifiers

Local EPrints ID: 342686
URI: https://eprints.soton.ac.uk/id/eprint/342686
ISSN: 0885-8969
PURE UUID: 882ccab9-c196-4453-90a4-f01553548ccf
ORCID for Andrew Cruden: ORCID iD orcid.org/0000-0003-3236-2535

Catalogue record

Date deposited: 12 Sep 2012 16:38
Last modified: 14 Dec 2018 01:31

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