Battery Grouping with Time Series Clustering Based on Affinity Propagation

Battery grouping is a technology widely used to improve the performance of battery packs. In this paper, we propose a time series clustering based battery grouping method. The proposed method utilizes the whole battery charge/discharge sequence for battery grouping. The time sequences are first deno...

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Bibliographic Details
Main Authors: Zhiwei He, Mingyu Gao, Guojin Ma, Yuanyuan Liu, Lijun Tang
Format: Article
Language:English
Published: MDPI AG 2016-07-01
Series:Energies
Subjects:
Online Access:http://www.mdpi.com/1996-1073/9/7/561
Description
Summary:Battery grouping is a technology widely used to improve the performance of battery packs. In this paper, we propose a time series clustering based battery grouping method. The proposed method utilizes the whole battery charge/discharge sequence for battery grouping. The time sequences are first denoised with a wavelet denoising technique. The similarity matrix is then computed with the dynamic time warping distance, and finally the time series are clustered with the affinity propagation algorithm according to the calculated similarity matrices. The silhouette index is utilized for assessing the performance of the proposed battery grouping method. Test results show that the proposed battery grouping method is effective.
ISSN:1996-1073