期刊
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
卷 13, 期 10, 页码 9257-9272出版社
ESG
DOI: 10.20964/2018.10.51
关键词
Lithium-ion battery; RUL prediction; ELM; HKA
资金
- National Natural Science Foundation of China [71601022]
- Natural Science Foundation of Beijing [4173074]
- Key Project B Class of Beijing Natural Science Fund [KZ201710028028]
- Capacity Building for Sci-Tech Innovation - Fundamental Scientific Research Funds [025185305000-187]
- Youth Innovative Research Team of Capital Normal University
Accurately predicting the remaining useful life (RUL) of lithium-ion batteries is very important to battery management systems (BMS). Recently, Extreme Learning Machine (ELM) algorithm has been applied to RUL prediction of lithium-ion batteries. However, the input weights and biases of the ELM algorithm are generated randomly, which affect its prediction accuracy. In this paper, we use the heuristic Kalman algorithm (HKA) to optimize the input weights and biases of the ELM algorithm. The mean square error (MSE) obtained from the ELM is used as the cost function of the HKA algorithm, and the optimized particles in the HKA are used as the weights and biases of the ELM predictor. In this work, the HKA-ELM method is introduced firstly, then, we perform experiments on the battery data set to verify the proposed algorithm, and compare with other algorithms. Results show that our proposed method has better prediction accuracy than related works.
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