DocumentCode :
16147
Title :
An Equivalent Circuit Model With Variable Effective Capacity for 
Batteries
Author :
Blanco, Cristian ; Sanchez, L. ; Gonzalez, M. ; Anton, Juan C. ; Garcia, Virgile ; Viera, Juan C.
Author_Institution :
Dept. of Electr. & Electron. Eng., Univ. of Oviedo, Gijon, Spain
Volume :
63
Issue :
8
fYear :
2014
fDate :
Oct. 2014
Firstpage :
3592
Lastpage :
3599
Abstract :
A new approach to equivalent circuit models for LiFePO4 batteries is presented in this paper. The proposed battery model is a semi-physical nonlinear dynamic model with variable effective capacity. Fuzzy logic has been used to capture the nonlinear behavior of the battery in combination with continuous-time differential equations. Fuzzy logic blocks are embedded in a state-space dynamic model as nonlinear constructive blocks. The proposed model has been validated for three different LiFePO4 batteries. The model provides an intuitive physical analogy between charging LiFePO4 batteries and filling a semi-rigid tank, which is useful for explanatory purposes.
Keywords :
differential equations; equivalent circuits; fuzzy logic; iron compounds; lithium compounds; nonlinear dynamical systems; secondary cells; state-space methods; LiFePO4; batteries; continuous-time differential equations; equivalent circuit model; fuzzy logic blocks; nonlinear constructive blocks; semiphysical nonlinear dynamic model; semirigid tank; state-space dynamic model; variable effective capacity; Batteries; Battery charge measurement; Discharges (electric); Electronic countermeasures; Equivalent circuits; Integrated circuit modeling; Mathematical model; $hbox{LiFePO}_{4}$ batteries; Effective capacity; modeling;
fLanguage :
English
Journal_Title :
Vehicular Technology, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9545
Type :
jour
DOI :
10.1109/TVT.2014.2309394
Filename :
6754194
Link To Document :
