Hysteresis Modeling of Lithium-Silicon Half Cells Using Prandtl-Ishlinskii Model

Chayratsami, Pornpimon; Plett, Gregory L.

doi:10.1109/ICCA51439.2020.9264350

Hysteresis Modeling of Lithium-Silicon Half Cells Using Prandtl-Ishlinskii Model

Author(s)

Chayratsami, Pornpimon

Plett, Gregory L.

Date Issued

October 9, 2020

Type

Conference Paper

DOI

10.1109/ICCA51439.2020.9264350

Abstract

State-of-charge (SOC)-estimation accuracy is critical to battery management in electric-vehicle (EV) applications. SOC-estimation error can arise from unmodeled nonlinear battery hysteresis; so to enhance performance, it is necessary to model hysteresis voltage. This paper presents results from applying three kinds of Prandtl-Ishlinskii (PI) model to a Li//Si half cell: classical PI (CPI), generalized PI (GPI), and modified generalized PI (mGPI). The performance comparison among these models and also comparisons to the Preisach and Krasnosel'skii-Pokrovskii (KP) models are made. It is found that the mGPI provides best performance among all models having the same level of calculation.

Citation

IEEE International Conference on Control and Automation Icca, 2020-October, 1578-1583, 2020