Active Battery Equalization System Based on Extended Kalman Filter and DC-DC Bidirectional Flyback Converter

Guangze Sun, Qianhui Ma, Tonglin Liu, Huiqing Wen*

*Corresponding author for this work

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

Abstract

In this paper, a novel active battery equalization system is proposed for the operation of battery packs in electric vehicles. The system employs a bidirectional DC-DC flyback converter and an equalization algorithm based on Extended Kalman Filter (EKF) prediction SOC to achieve active equalization between cells by optimizing the control strategy, aiming to improve the lifetime and safety of the battery pack in the application, and thus the energy utilization and stability of the system. Simulations and experimental results are presented.

Original languageEnglish
Title of host publicationPEAS 2023 - 2023 IEEE 2nd International Power Electronics and Application Symposium, Conference Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2163-2168
Number of pages6
ISBN (Electronic)9798350313765
DOIs
Publication statusPublished - 2023
Event2nd IEEE International Power Electronics and Application Symposium, PEAS 2023 - Guangzhou, China
Duration: 10 Nov 202313 Nov 2023

Publication series

NamePEAS 2023 - 2023 IEEE 2nd International Power Electronics and Application Symposium, Conference Proceedings

Conference

Conference2nd IEEE International Power Electronics and Application Symposium, PEAS 2023
Country/TerritoryChina
CityGuangzhou
Period10/11/2313/11/23

Keywords

  • Active battery equalization
  • DC-DC flyback converter
  • EKF

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