Journal
JOURNAL OF ENERGY STORAGE
Volume 32, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.est.2020.101789
Keywords
State of charge; Lithium-ion battery; Elman neural network; Ant colony algorithm; Electric vehicle
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Funding
- MAJOR SCIENCE AND TECHNOLOGY PROJRCTS OF WENZHOU, CHINA [2018ZG007]
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The state of charge (SOC) is a parameter to describe the remaining charge of lithium-ion batteries in electric vehicles. It is a key problem to be solved in the field of electric vehicles. In this paper, ant colony optimization (ACO) algorithm is creatively applied to improve Elman neural network to form ACO-Elman neural network model, and it is applied to lithium-ion battery SOC prediction for the first time. The ACO-Elman model is trained and tested under Dynamic Stress Test and Federal Urban Driving Schedule drive profiles. The SOC estimation results of ACO-Elman model are evaluated from three aspects: mean absolute error, root mean square error, and SOC error. The results show that the ACO-Elman model has high accuracy and robustness. It has a good ap-plication prospect.
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