Remaining Service Life Prediction of Lithium-Ion Batteries Based on Randomly Perturbed Traceless Particle Filtering

Yan Liu, Jun Chen, Jun Yong, Cheng Yang, Liqin Yan and Yanping Zheng ()
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Yan Liu: College of Automobile and Traffic Engineering, Nanjing Forestry University, Nanjing 210037, China
Jun Chen: College of Automobile and Traffic Engineering, Nanjing Forestry University, Nanjing 210037, China
Jun Yong: Jun Yong-State Grid Dangtu County Power Supply Company, Maanshan 243000, China
Cheng Yang: State Key Laboratory of Space Power-Sources, Shanghai Institute of Space Power-Sources, Shanghai 200245, China
Liqin Yan: State Key Laboratory of Space Power-Sources, Shanghai Institute of Space Power-Sources, Shanghai 200245, China
Yanping Zheng: College of Automobile and Traffic Engineering, Nanjing Forestry University, Nanjing 210037, China

Energies, 2024, vol. 17, issue 21, 1-17

Abstract: To address the limitations in the prediction accuracy of the remaining useful life (RUL) of lithium-ion batteries, stemming from model accuracy, particle degradation, and insufficient diversity in the particle filter (PF) algorithm, this paper proposes a battery RUL prediction method utilizing a randomly perturbed unscented particle filter (RP-UPF) algorithm, based on the constructed battery capacity degradation model. The method utilizes evaluation metrics adjusted R-squared ( R adj 2 ) and the Akaike Information Criterion ( AIC ) to select the battery capacity decline model C 5 with a higher goodness of fit. The initial values for constructing the C 5 model are obtained using the relevance vector machine (RVM) and nonlinear least squares methods. Based on the constructed battery capacity decline model C 5 , the RP-UPF algorithm is employed to estimate the posterior parameters and iteratively approach the true battery capacity decline curve, thereby predicting the battery’s RUL. The research results indicate that, using battery B0005 as an example and starting the prediction from the 50th cycle, the RUL prediction results obtained with the RP-UPF algorithm demonstrate reductions in absolute error, relative error, and probability density function (PDF) width of 2%, 2.71%, and 10%, respectively, compared to the PF algorithm. Similar conclusions were drawn for batteries B0006 and B0018. Under the constructed battery capacity degradation model C 5 , the RP-UPF algorithm shows higher prediction accuracy for battery RUL and a narrower PDF range compared to the PF algorithm. This approach effectively addresses the issue of particle weight degradation in the PF algorithm, providing a more valuable reference for battery RUL prediction.

Keywords: lithium-ion batteries; RUL; capacity degradation model; RVM; RP-UPF (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: 2024
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