Infinite-Dimensional Boundary Observer for Lithium-Ion Battery State Estimation. (December 2017)

• Record Type: Journal Article
• Authors: Hasan, Agus; Jouffroy, Jerome
• Is Part Of: Energy procedia. Volume 141(2017)
• Page Start: 494
• Page End: 501
• Publication Date: 2017-12
• Subjects: Distributed parameter systems -- observer design -- lithium-ion battery -- battery management systems; Power resources -- Congresses; Power resources -- Periodicals; Power resources; Conference proceedings; Periodicals; 333.7905
• DOI: 10.1016/j.egypro.2017.11.065
• Languages: English
• ISSNs: 1876-6102

Abstract

Abstract: This paper presents boundary observer design for state-of-charge (SOC) estimation of lithium-ion batteries. The lithium-ion battery dynamics are governed by thermal-electrochemical principles, which mathematically modeled by partial differential equations (PDEs). In general, the model is a reaction-diffusion equation with time-dependent coefficients. A Luenberger observer is developed using infinite-dimensional backstepping method and uses only a single measurement at the boundary of the battery. The observer gains are computed by solving the observer kernel equation. A numerical example is performed to show the applicability of the design.