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Cross Trajectory Gaussian Process Regression Model for Battery Health Prediction

Authors :
Jianshe Feng
Xiaodong Jia
Haoshu Cai
Feng Zhu
Xiang Li
Jay Lee
Source :
Journal of Modern Power Systems and Clean Energy, Vol 9, Iss 5, Pp 1217-1226 (2021)
Publication Year :
2021
Publisher :
IEEE, 2021.

Abstract

Accurate battery capacity prediction is important to ensure reliable battery operation and reduce the cost. However, the complex nature of battery degradation and the presence of capacity regeneration phenomenon render the prediction task very challenging. To address this problem, this paper proposes a novel and efficient algorithm to predict the battery capacity trajectory in a multi-cell setting. The proposed method is a new variant of Gaussian process regression (GPR) model, and it utilizes similar trajectories in the historical data to enhance the prediction of desired capacity trajectory. More importantly, the proposed method adds no extra computation cost to the standard GPR. To demonstrate the effectiveness of the proposed method, validation tests on two different battery datasets are implemented in the case studies. The prediction results and the computation cost are carefully benchmarked with cutting-edge GPR approaches for battery capacity prediction.

Details

Language :
English
ISSN :
21965420
Volume :
9
Issue :
5
Database :
Directory of Open Access Journals
Journal :
Journal of Modern Power Systems and Clean Energy
Publication Type :
Academic Journal
Accession number :
edsdoj.f6aec196bcc41888d375ea21357383f
Document Type :
article
Full Text :
https://doi.org/10.35833/MPCE.2019.000142