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Communication Dans Un Congrès Année : 2022

Battery Early End-Of-Life Prediction and Its Uncertainty Assessment with Empirical Mode Decomposition and Particle Filter

Jianwen Meng
Meiling Yue

Résumé

The first priority of battery predictive maintenance is to estimate its end-of-life (EOL) cycle and assess the uncertainty associated with the predicted values. In this paper, a hybrid method combining empirical mode decomposition (EMD) and particle filter (PF) is applied to an open source database of NASA Ames Prognostics Center of Excellence for the early EOL prediction of four battery cells. The results show a clear decreasing trend of EOL prediction uncertainty when the prediction starts from later operation cycles. However, the distance between the true EOL and the mean predicted EOL has no obvious decrease when more operation data is available. Interestingly, the mean predicted EOL is lower than the true EOL with more available operation data, which is meaningful for reliability engineering and system safety. For instance, the final EOL prediction results from the 80-th cycle are 17 cycles, 7 cycles, 33 cycles and 16 cycles earlier than the real values, respectively.
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hal-04508467 , version 1 (18-03-2024)

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Jianwen Meng, Meiling Yue, Demba Diallo. Battery Early End-Of-Life Prediction and Its Uncertainty Assessment with Empirical Mode Decomposition and Particle Filter. 2022 Prognostics and Health Management Conference (PHM-2022 London), May 2022, London, United Kingdom. pp.204-209, ⟨10.1109/phm2022-london52454.2022.00043⟩. ⟨hal-04508467⟩
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