Shunli Wang
Improved multiple feature-electrochemical thermal coupling modeling of lithium-ion batteries at low-temperature with real-time coefficient correction.
Wang, Shunli; Gao, Haiying; Takyi-Aninakwa, Paul; Guerrero, Josep M.; Fernandez, Carlos; Huang, Qi
Authors
Haiying Gao
Paul Takyi-Aninakwa
Josep M. Guerrero
Dr Carlos Fernandez c.fernandez@rgu.ac.uk
Senior Lecturer
Qi Huang
Abstract
Monitoring various internal parameters plays a core role in ensuring the safety of lithium-ion batteries in power supply applications. It also influences the sustainability effect and online state of charge prediction. An improved multiple feature-electrochemical thermal coupling modeling method is proposed considering low-temperature performance degradation for the complete characteristic expression of multi-dimensional information. This is to obtain the parameter influence mechanism with a multi-variable coupling relationship. An optimized decoupled deviation strategy is constructed for accurate state of charge prediction with real-time correction of time-varying current and temperature effects. The innovative decoupling method is combined with the functional relationships of state of charge and open-circuit voltage to capture energy management effectively. Then, an adaptive equivalent-prediction model is constructed using the state-space equation and iterative feedback correction, making the proposed model adaptive to fractional calculation. The maximum state of charge estimation errors of the proposed method are 4.57% and 0.223% under the Beijing bus dynamic stress test and dynamic stress test conditions, respectively. The improved multiple feature-electrochemical thermal coupling modeling realizes the effective correction of the current and temperature variations with noise influencing coefficient, and provides an efficient state of charge prediction method adaptive to complex conditions.
Citation
WANG, S., GAO, H., TAKYI-ANINAKWA, P., GUERRERO, J.M., FERNANDEZ, C. and HUANG, Q. 2024. Improved multiple feature-electrochemical thermal coupling modeling of lithium-ion batteries at low-temperature with real-time coefficient correction. Protection and control of modern power systems [online], 9(3), pages 157-173. Available from: https://doi.org/10.23919/PCMP.2023.000257
Journal Article Type | Article |
---|---|
Acceptance Date | Jan 19, 2024 |
Online Publication Date | May 1, 2024 |
Publication Date | May 31, 2024 |
Deposit Date | Jun 28, 2024 |
Publicly Available Date | Jun 28, 2024 |
Journal | Protection and control of modern power systems |
Electronic ISSN | 2367-0983 |
Publisher | Springer |
Peer Reviewed | Peer Reviewed |
Volume | 9 |
Issue | 3 |
Pages | 157-173 |
DOI | https://doi.org/10.23919/pcmp.2023.000257 |
Keywords | Adaptive inner state characterization; Lithium-ion batteries; Low-temperature automatic-guided-vehicle; Multiple feature-electrochemical thermal coupling modeling; Real-time coefficient correction |
Public URL | https://rgu-repository.worktribe.com/output/2383348 |
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© 2024 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
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