H infinity observer based state of charge estimation for battery packs in electric vehicles

Fengxian He, W. X. Shen, Ajay Kapoor, Damon Honnery, Daya Dayawansa

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

8 Citations (Scopus)


A H infinity observer based method is proposed to estimate the state of charge (SOC) for a series-connected battery pack for electric vehicles. In this method, an average virtual cell (AVC) model is defined and the SOC of the AVC model is estimated to represent the pack SOC when all terminal voltage differences (TVD) between each individual cell in the pack and the AVC are within a voltage value set in advance. The LiFePO4 battery pack is utilized to conduct the experiments to verify the effectiveness of the proposed method.

Original languageEnglish
Title of host publicationProceedings of the 2016 IEEE 11th Conference on Industrial Electronics and Applications (ICIEA 2016)
Subtitle of host publication5-7 June 2016, Hefei, China
EditorsWenxiang Xie, Cungang Hu, Weihai Chen
Place of PublicationPiscataway, NJ
PublisherIEEE, Institute of Electrical and Electronics Engineers
Number of pages6
ISBN (Electronic)9781467386449, 9781509026050
ISBN (Print)9781467386456
Publication statusPublished - 19 Oct 2016
EventIEEE Conference on Industrial Electronics and Applications 2016 - Hefei Swan Lake Hotel, Hefei Anhui, China
Duration: 5 Jun 20167 Jun 2016
Conference number: 11th
http://ieeexplore.ieee.org/xpl/conhome.jsp?punumber=1001289 (Proceedings)


ConferenceIEEE Conference on Industrial Electronics and Applications 2016
Abbreviated titleICIEA 2016
CityHefei Anhui
Internet address


  • Battery pack
  • H observer
  • Lithium-ion battery
  • State of charge estimation

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