Integrated Equivalent Circuit and Thermal Model for Simulation of Temperature-Dependent LiFePO4 Battery in Actual Embedded Application

Gao, Zuchang, Chin, Cheng, Woo, Wai Lok and Jia, Junbo (2017) Integrated Equivalent Circuit and Thermal Model for Simulation of Temperature-Dependent LiFePO4 Battery in Actual Embedded Application. Energies, 10 (1). p. 85. ISSN 1996-1073

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Gao et al - Integrated equivalent circuit and thermal model for simulation of temperature-dependent LiFePO4 battery in actual embedded application OA.pdf - Published Version
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Official URL: http://dx.doi.org/10.3390/en10010085

Abstract

A computational efficient battery pack model with thermal consideration is essential for simulation prototyping before real-time embedded implementation. The proposed model provides a coupled equivalent circuit and convective thermal model to determine the state-of-charge (SOC) and temperature of the LiFePO4 battery working in a real environment. A cell balancing strategy applied to the proposed temperature-dependent battery model balanced the SOC of each cell to increase the lifespan of the battery. The simulation outputs are validated by a set of independent experimental data at a different temperature to ensure the model validity and reliability. The results show a root mean square (RMS) error of 1.5609 × 10−5 for the terminal voltage and the comparison between the simulation and experiment at various temperatures (from 5 °C to 45 °C) shows a maximum RMS error of 7.2078 × 10−5.

Item Type: Article
Uncontrolled Keywords: Battery management system, Cell model, Convective thermal model, Lithium-ion battery, State-of-charge
Subjects: H600 Electronic and Electrical Engineering
H800 Chemical, Process and Energy Engineering
Department: Faculties > Engineering and Environment > Computer and Information Sciences
Depositing User: Paul Burns
Date Deposited: 02 Apr 2019 11:57
Last Modified: 02 Apr 2019 12:00
URI: http://nrl.northumbria.ac.uk/id/eprint/38694

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