Title
Nonlinear Robust Observers for State-of-Charge Estimation of Lithium-Ion Cells Based on a Reduced Electrochemical Model
Abstract
Advanced battery management systems rely on accurate cell- or module-level state-of-charge (SOC) information for effective control, monitoring, and diagnostics. Electrochemical models provide arguably the most accurate and detailed information about the SOC of lithium-ion cells. In this brief, two nonlinear observer designs are presented based on a reduced order electrochemical model. Both observers consist of a Luenberger term acting on nominal errors and a variable structure term for handling model uncertainty. Using Lyapunov's direct method, the design of the Luenberger term in each observer is formulated as a linear matrix inequality problem, whereas the variable structure term is designed assuming uncertainty bounds. Simulation and experimental studies are included to demonstrate the performance of the proposed observers.
Year
DOI
Venue
2015
10.1109/TCST.2014.2382635
Control Systems Technology, IEEE Transactions  
Keywords
Field
DocType
Observers,System-on-chip,Uncertainty,Electrodes,Integrated circuit modeling,Mathematical model
Lyapunov function,Direct method,Nonlinear system,System on a chip,Control theory,Control engineering,Observer (quantum physics),Lithium,Linear matrix inequality,Mathematics,State of charge
Journal
Volume
Issue
ISSN
PP
99
1063-6536
Citations 
PageRank 
References 
12
0.84
9
Authors
3
Name
Order
Citations
PageRank
Satadru Dey15510.95
Beshah Ayalew25612.79
Pierluigi Pisu323931.29