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A method for peak power prediction of series-connected lithium-ion battery pack using extended Kalman filter

  • University of Science and Technology of China

Research output: Contribution to journalArticlepeer-review

Abstract

Rechargeable battery systems are key components of applications in on-board storage for Micro-grids and electric vehicles. One of the most important evaluation indexes for energy storage system is the peak power capability information, which is used to evaluate the instantaneous power capability of battery systems to release or absorb electrical energy. To give out an accurate peak power capability estimation method for series-connected lithium-ion battery pack, this paper first proposed an extended Kalman filter based state-of-charge estimation method. Then the estimated state-of-charges and predicted terminal voltages of the cells in a series-connected lithium-ion battery pack are regarded as the constraints of peak power capability. Finally, the proposed method is verified by experiments conducted on a 6-series LiFePO4 battery pack.

Original languageEnglish
Pages (from-to)134-139
Number of pages6
JournalInternational Journal of Mechanical Engineering and Robotics Research
Volume6
Issue number2
DOIs
StatePublished - 2017
Externally publishedYes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy

Keywords

  • Battery storage
  • Modeling
  • Peak power capability
  • State estimation

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