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Model based state of charge estimation method for ultra-capacitor

  • School of Electrical Engineering and Automation, Harbin Institute of Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Ultra-capacitor has the features of high power density, quick charge and long life cycle, which receives great attention in the research and development of electric vehicles. State of charge of battery or ultra-capacitor is the most important parameter in an electric vehicle. In this paper, a state-space state of charge estimation method for ultra-capacitor made of active carbon electrode and aqueous electrolyte is studied based on an equivalent circuit model. The charging and discharging experiment results indicate that the precision of the method is similar with ampere hour method. So state of charge of electric vehicle ultra-capacitor could be estimated accurately.

Original languageEnglish
Title of host publication2008 IEEE Vehicle Power and Propulsion Conference, VPPC 2008
DOIs
StatePublished - 2008
Externally publishedYes
Event2008 IEEE Vehicle Power and Propulsion Conference, VPPC 2008 - Harbin, China
Duration: 3 Sep 20085 Sep 2008

Publication series

Name2008 IEEE Vehicle Power and Propulsion Conference, VPPC 2008

Conference

Conference2008 IEEE Vehicle Power and Propulsion Conference, VPPC 2008
Country/TerritoryChina
CityHarbin
Period3/09/085/09/08

Keywords

  • Equivalent circuit model
  • SOC estimation
  • State-space
  • Ultra-capacitor

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