Remaining Useful Life Prediction for Lithium-Ion Batteries Based on Improved Variational Mode Decomposition and Machine Learning Algorithm

Chuang Sun, An Qu, Jun Zhang, Qiyang Shi and Zhenhong Jia ()
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Chuang Sun: College of Information Science and Engineering, Xinjiang University, Urumqi 830046, China
An Qu: Network Management Center, China Mobile Xinjiang Co., Ltd., Urumqi 830063, China
Jun Zhang: College of Information Science and Engineering, Xinjiang University, Urumqi 830046, China
Qiyang Shi: College of Information Science and Engineering, Xinjiang University, Urumqi 830046, China
Zhenhong Jia: College of Information Science and Engineering, Xinjiang University, Urumqi 830046, China

Energies, 2022, vol. 16, issue 1, 1-15

Abstract: Remaining useful life (RUL) prediction of batteries is important for the health management and safety evaluation of lithium-ion batteries. Because lithium-ion batteries have capacity recovery and noise interference during actual use, direct use of measured capacity data to predict their RUL generalization ability is not efficient. Aimed at the above problems, this paper proposes an integrated life prediction method for lithium-ion batteries by combining improved variational mode decomposition (VMD) with a long short-term memory network (LSTM) and Gaussian process regression algorithm (GPR). First, the VMD algorithm decomposed the measured capacity dataset of the lithium-ion battery into a residual component and capacity regeneration component, in which the penalty factor α and mode number K in the VMD algorithm were optimized by the whale optimization algorithm (WOA). Second, the LSTM and GPR models were established to predict the residual component and capacity regeneration components, respectively. Last, the predicted components are integrated to obtain the final predicted lithium-ion battery capacity. The experimental results show that the mean absolute error (MAE) and root mean square error (RMSE) of the proposed lithium-ion battery capacity prediction model are less than 0.5% and 0.8%, respectively, and the method outperforms the five compared algorithms and several recently proposed hybrid algorithms in terms of prediction accuracy.

Keywords: lithium-ion battery; variational mode decomposition; remaining useful life prediction; long short-term memory; Gaussian process regression (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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