Novel bidirectional multiple-input multiple-output converter for simultaneous direct battery module balancing

Reinhold Koch, Andreas Jossen, Robert Kuhn

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

Abstract

Charge balancers are needed to equalize the energy stored in battery cells connected in series to increase the usable capacity and lifetime of the entire stack. A multiple-input multiple-output DC/DC converter for battery module balancing, based on flux additivity, is proposed. It allows bidirectional, simultaneous and direct charge transfer. A prototype converter with two bidirectional channels has successfully been built-up and tested. First experimental results are presented to verify the feasibility of the charge balancer. A time averaged model is derived considering the influence of the common multiwinding transformer voltage.

Original languageEnglish
Title of host publication2013 World Electric Vehicle Symposium and Exhibition, EVS 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479938322
DOIs
StatePublished - 1 Oct 2014
Event27th World Electric Vehicle Symposium and Exhibition, EVS 2014 - Barcelona, Spain
Duration: 17 Nov 201320 Nov 2013

Publication series

Name2013 World Electric Vehicle Symposium and Exhibition, EVS 2014

Conference

Conference27th World Electric Vehicle Symposium and Exhibition, EVS 2014
Country/TerritorySpain
CityBarcelona
Period17/11/1320/11/13

Keywords

  • Battery Management System
  • DC-DC
  • charge equalization
  • converter
  • electronic

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