Journal
SIGNAL PROCESSING
Volume 86, Issue 10, Pages 2645-2657Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.sigpro.2006.02.030
Keywords
fractional order dynamical systems; system identification; lead acid batteries; state of charge estimation
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This paper deals with the application of fractional system identification to lead acid battery state of charge estimation. Fractional behavior of lead acid batteries is justified. A fractional system identification method recently developed is presented and a new fractional model of the battery is proposed. Based on parameter variations of this model, a state of charge estimation method is presented. Validation tests of this method on unknown state of charge are carried out. These validation tests highlights that the proposed estimation method gives a state of charge estimation with an error close to 5% whatever the operating temperature. (c) 2006 Elsevier B.V. All rights reserved.
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