State of charge estimation and state of health diagnostic method using multilayer neural networks

Jong Hyun Lee, Hyun Sil Kim, In Soo Lee

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

13 Scopus citations

Abstract

Lithium batteries are the most common energy storage devices in fields such as electric vehicles, portable devices, and energy storage systems. Continuously using the battery in a degradation state creates a fire or explosion risk. To prevent such accidents, research on a battery management system (BMS) that diagnoses the state of a battery was conducted. This study proposes a method that uses multilayer neural networks (MNN) for state of charge (SOC) estimation and state of health (SOH) diagnosis. The proposed method uses four MNN models as SOH diagnostic models and three SOC estimation models. Each SOC estimation model comprises a normal model, a caution model, and a fault model according to the learned data based on the output result of the SOH diagnostic model. From the experiments, the proposed method estimates and diagnoses SOC and SOH well.

Original languageEnglish
Title of host publication2021 International Conference on Electronics, Information, and Communication, ICEIC 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728191614
DOIs
StatePublished - 31 Jan 2021
Event2021 International Conference on Electronics, Information, and Communication, ICEIC 2021 - Jeju, Korea, Republic of
Duration: 31 Jan 20213 Feb 2021

Publication series

Name2021 International Conference on Electronics, Information, and Communication, ICEIC 2021

Conference

Conference2021 International Conference on Electronics, Information, and Communication, ICEIC 2021
Country/TerritoryKorea, Republic of
CityJeju
Period31/01/213/02/21

Keywords

  • Estimation method
  • Lithium battery
  • Multilayer deep neural network
  • State of charge
  • State of health

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