Research on Evaluation Indicators for a Comprehensive Assessment of Operating Status of Lithium Battery Energy Storage

doi:10.11930/j.issn.1004-9649.2016.05.149.08

Abstract

Abstract: With the continuous improvement of lithium battery energy storage technology and increased number of lithium battery energy storage stations in operation at home and abroad, the operating status of lithium battery energy storage has attracted increased attention. Based on the operational data and theoretical analysis, this paper studies a number of evaluation indicators for measuring the operating status of lithium energy storage, including the range of battery voltage, the coefficient of standard deviation of battery voltage, the range of battery temperature, the range of SOE, the degree of correlation between power and SOE, the charge-discharge efficiency. The paper provides a comprehensive assessment of the evaluation indicator system based on the internal relationship among the indicators. The results show that these indicators can be used to assess the operating status of lithium battery energy storage effectively, and applied to identify battery fault and guide the arrangement of battery inspection and maintenance.

Key words: energy storage, lithium battery, running status, evaluation indicator, range, coefficient of standard deviation, state of energy, charge-discharge efficiency

CLC Number:

TM715

CHEN Hao, DIAO Jia, BAI Kai, GAO Fei, MA Buyun, LI Na. Research on Evaluation Indicators for a Comprehensive Assessment of Operating Status of Lithium Battery Energy Storage[J]. Electric Power, 2016, 49(5): 149-156.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.2016.05.149.08

https://www.electricpower.com.cn/EN/Y2016/V49/I5/149

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