文章基本信息

标题：Kernel recursive least square tracker and long-short term memory ensemble based battery health prognostic model
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作者：Muhammad Umair Ali ; Karam Dad Kallu ; Haris Masood 等
期刊名称：iScience
印刷版ISSN：2589-0042
出版年度：2021
卷号：24
期号：11
页码：1-17
DOI：10.1016/j.isci.2021.103286
语种：English
出版社：Elsevier
摘要：SummaryA data-driven approach is developed to predict the future capacity of lithium-ion batteries (LIBs) in this work. The empirical mode decomposition (EMD), kernel recursive least square tracker (KRLST), and long short-term memory (LSTM) are used to derive the proposed approach. First, the LIB capacity data is split into local regeneration and monotonic global degradation using the EMD approach. Next, the KRLST is used to track the decomposed intrinsic mode functions, and the residual signal is predicted using the LSTM sub-model. Finally, all the predicted intrinsic mode functions and the residual are ensembled to get the future capacity. The experimental and comparative analysis validates the high accuracy (RMSE of 0.00103) of the proposed ensemble approach compared to Gaussian process regression and LSTM fused model. Furthermore, two times lesser error than other fused models makes this approach an efficient tool for battery health prognostics.Graphical abstractDisplay OmittedHighlightsEnsemble KRLST-LSTM framework for battery capacity predictionKRLST trained to address the local regeneration issue of batteriesLSTM utilized to predict the residualEnsemble KRLST-LSTM increases the prediction accuracy two to three-timeComputer systems organization; Energy engineering; Energy systems