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http://dx.doi.org/10.5391/JKIIS.2013.23.3.214

Robust High-Gain Observer Based SOC Estimator for Uncertain RC Model of Li-Ion Batteries  

Lee, Jong-Yeon (Divison of Electrical Electronic and Control Engineering, Kongju National University)
Kim, Wonho (Divison of Electrical Electronic and Control Engineering, Kongju National University)
Hyun, Chang-Ho (Divison of Electrical Electronic and Control Engineering, Kongju National University)
Publication Information
Journal of the Korean Institute of Intelligent Systems / v.23, no.3, 2013 , pp. 214-219 More about this Journal
Abstract
This paper proposes the robust high-gain observer based SOC estimatro for uncertain RC model of Li-Ion batteries. In general, RC battery model has inevitable uncertainties and it cause some negative effect to estimate the accurate SOC of Li-Ion batteries. The proposed estimator overcomes such weakness with two techniques; high-gain observer design technique and sliding mode control technique. A high-gain observer provides the robustness against model uncertainties to the proposed estimator. A sliding mode control technique helps the proposed estimator by reducing the side effect of adopting a high-gain observer such as peaking phenomenon and perturbation. The performance of the proposed estimator is verified by some simulation.
Keywords
Uncertainties; Lithium-Ion Batteries; SOC estimator; Robustness; High-Gain Observer;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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