Multiple model estimator based detection of abnormal cell overheating in a Li-ion battery string with minimum number of temperature sensors

This paper proposes modeling of abnormal cell overheating caused by internal short circuit in a cell of a Li-ion battery string by augmenting the cell state space model with unknown input disturbance. Furthermore, with minimum number of temperature sensors, in order to identify which of the cells in...

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Bibliographic Details
Published in:Journal of power sources 2015, Vol.273, p.1171-1181
Main Authors: LYSTIANINGRUM, Vita, HREDZAK, Branislav, AGELIDIS, Vassilios G
Format: Article
Language:English
Subjects:
Applied sciences
Battery
Computer simulation
Direct energy conversion and energy accumulation
Disturbances
Electrical engineering. Electrical power engineering
Electrical power engineering
Electrochemical conversion: primary and secondary batteries, fuel cells
Estimators
Exact sciences and technology
Lithium-ion batteries
Overheating
Short circuits
Strings
Temperature sensors
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Summary:This paper proposes modeling of abnormal cell overheating caused by internal short circuit in a cell of a Li-ion battery string by augmenting the cell state space model with unknown input disturbance. Furthermore, with minimum number of temperature sensors, in order to identify which of the cells in the string is experiencing the abnormal overheating, a multiple model estimator (MME) is used. Simulation results demonstrate that the proposed MME can detect the abnormally overheating cell as well as quickly detect that an abnormal overheating event occurred in the battery string.
ISSN:0378-7753
1873-2755
DOI:10.1016/j.jpowsour.2014.09.166