Infinite-Dimensional Boundary Observer for Lithium-Ion Battery State Estimation

Agus Hasan*, Jerome Jouffroy

*Corresponding author for this work

Research output: Contribution to journalConference articleResearchpeer-review

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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.

Original languageEnglish
JournalEnergy Procedia
Volume141
Pages (from-to)494-501
ISSN1876-6102
DOIs
Publication statusPublished - 2017
Event4th International Conference on Power and Energy Systems Engineering - Berlin, Germany
Duration: 25. Sep 201729. Sep 2017

Conference

Conference4th International Conference on Power and Energy Systems Engineering
CountryGermany
CityBerlin
Period25/09/201729/09/2017

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Keywords

  • battery management systems
  • Distributed parameter systems
  • lithium-ion battery
  • observer design

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