期刊
JOURNAL OF ENERGY STORAGE
卷 29, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.est.2020.101479
关键词
Data centres; Data driven model; K shape-based clustering; Anomaly detection; Battery health
资金
- National Key Research and Development Project of China [2017YFC0704100, 2016YFB0901900]
- National Natural Science Foundation of China [61425027]
- Tencent Inc.
- 111 International Collaboration Program of China [BP2018006]
- BNRist Program [BNR2019TD01009]
Batteries are a significant part of data centers, which ensure the uninterrupted working of a data center. Using online measurement to find out odd batteries in data centers is challenging due to lack of training samples since there are only a very few full charging-discharging cycles during the lifetime of batteries. In this paper, a new battery anomaly detection method based on time series clustering is proposed. This method uses only battery operating data and does not depend on offline testing data, thus provides a way to improve the maintenance efficiency and lessen batteries operating risks in data centers. Effectiveness of the proposed method is demonstrated and confirmed by a case study for 40 batteries in an existent data center.
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