Temperature dependent parameter estimation of electrical vehicle batteries

Anna I. Pózna, Katalin M. Hangos, Attila Magyar

Research output: Contribution to journalArticle

Abstract

Parameter estimation of electrical vehicle batteries in the presence of temperature effect is addressed in this work. A simple parametric temperature dependent battery model is used for this purpose where the temperature dependence is described by static relationships. A two-step method is used that includes a parameter estimation step of the key parameters at different temperatures followed by a static optimization step that determines the temperature coefficients of the corresponding parameters. It was found that the temperature dependent parameter characteristics can be reliably estimated from charging profiles only. The proposed method can be used as a computationally effective way of determining the key battery parameters at a given temperature from their actual estimated values and from their previously determined static temperature dependence. The proposed parameter estimation method was verified by simulation experiments on a more complex battery model that also describes the detailed dynamic thermal behavior of the battery.

Original languageEnglish
Article number3755
JournalEnergies
Volume12
Issue number19
DOIs
Publication statusPublished - Sep 30 2019

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Keywords

  • Dynamic modeling
  • Electric
  • Energy storage operation and planning
  • Parameter estimation
  • Solar vehicles
  • Thermal management

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Energy (miscellaneous)
  • Control and Optimization
  • Electrical and Electronic Engineering

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