Title :
State of charge modeling of arbitrary cell connection
Author :
Zhang, Jiucai ; Ci, Song
Author_Institution :
Dept. of CEEN, Univ. of Nebraska Lincoln, Omaha, NE, USA
Abstract :
Multi-cell batteries have been widely used in various electrochemical energy storage systems. To capture the influence of load conditions on multi-cell batteries, an accurate and comprehensive multi-cell battery model is highly desirable. However, modeling multi-cell battery is very challenging due to various nonlinear battery effects, unbalanced cell capacities, and various cell connections. In this paper, we proposed a new multi-cell battery model to characterize performance of multi-cell battery strings in series, parallel, and arbitrary connections. The proposed multi-cell model takes considerations of nonlinear effects, nonlinear circuit features, and battery cell connections. The accuracy of the multi-cell battery model has been validated by experimental results under various load conditions.
Keywords :
cells (electric); arbitrary cell connection; battery cell connections; electrochemical energy storage systems; multi-cell batteries; multi-cell battery model; nonlinear circuit features; nonlinear effects; state of charge modeling; Batteries; Current distribution; Discharges; Integrated circuit modeling; Load modeling; Resistance; System-on-a-chip; battery model; cell current distribution; current effect; multi-cell battery; parallel connection; recovery effect; series connection;
Conference_Titel :
Energy Conversion Congress and Exposition (ECCE), 2010 IEEE
Conference_Location :
Atlanta, GA
Print_ISBN :
978-1-4244-5286-6
Electronic_ISBN :
978-1-4244-5287-3
DOI :
10.1109/ECCE.2010.5618101
