Liu, K, Li, K and Zhang, C (2017) Constrained generalized predictive control of battery charging process based on a coupled thermoelectric model. Journal of Power Sources, 347. pp. 145-158. ISSN 0378-7753
Abstract
Battery temperature is a primary factor affecting the battery performance, and suitable battery temperature control in particular internal temperature control can not only guarantee battery safety but also improve its efficiency. This is however challenging as current controller designs for battery charging have no mechanisms to incorporate such information. This paper proposes a novel battery charging control strategy which applies the constrained generalized predictive control (GPC) to charge a LiFePO₄ battery based on a newly developed coupled thermoelectric model. The control target primarily aims to maintain the battery cell internal temperature within a desirable range while delivering fast charging. To achieve this, the coupled thermoelectric model is firstly introduced to capture the battery behaviours in particular SOC and internal temperature which are not directly measurable in practice. Then a controlled auto-regressive integrated moving average (CARIMA) model whose parameters are identified by the recursive least squares (RLS) algorithm is developed as an online self-tuning predictive model for a GPC controller. Then the constrained generalized predictive controller is developed to control the charging current. Experiment results confirm the effectiveness of the proposed control strategy. Further, the best region of heat dissipation rate and proper internal temperature set-points are also investigated and analysed.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2017 Published by Elsevier B.V. This is an author produced version of a paper published in Journal of Power Sources. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | LiFePO₄ battery; Constrained generalized predictive control; Coupled thermoelectric model; Battery internal temperature; Battery charging process |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Electronic & Electrical Engineering (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 03 Jul 2018 12:57 |
Last Modified: | 03 Jul 2018 12:57 |
Status: | Published |
Publisher: | Elsevier |
Identification Number: | 10.1016/j.jpowsour.2017.02.039 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:132839 |
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