SRC-Based Two-Cell Li-ion Battery Buck Converter for De-ripple Power Operation

Zixuan Xu, Minghao Wang, Zhao Xu

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

Sinusoidal ripple current (SRC) can improve Li-ion battery charging/discharging efficiency, rate, and cycle life. However, the ripple power caused by the SRC charging/discharging operation will reduce the converter's efficiency and lifespan of the filtering components. To address these issues, an SRC-based two-cell Li-ion battery buck converter topology is proposed in this paper. It is the first attempt to sustain SRC operation without compromising converter power quality. The proposed converter distinguishes itself from the conventional Buck converters by incorporating a two-cell time-division multiplexing function, preventing the ripple current from flowing through the passive components. A dedicated time-division multiplexing modulation technique has been devised specifically for two-cell Li-ion batteries. Simulation results have been provided to verify the SRC and de-ripple functionalities.

Original languageEnglish
Title of host publication2024 IEEE Applied Power Electronics Conference and Exposition, APEC 2024
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2148-2152
Number of pages5
ISBN (Electronic)9798350316643
DOIs
Publication statusPublished - 2 May 2024
Event39th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2024 - Long Beach, United States
Duration: 25 Feb 202429 Feb 2024

Publication series

NameConference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
ISSN (Print)1048-2334

Conference

Conference39th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2024
Country/TerritoryUnited States
CityLong Beach
Period25/02/2429/02/24

Keywords

  • high power quality
  • SRC
  • time-division multiplexing
  • two-cell buck converter

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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