Multi-Objective Control of Balancing Systems for Li-Ion Battery Packs: A paradigm shift?

Jorge Varela Barreras, Claudio Pinto, Ricardo de Castro, Erik Schaltz, Søren Juhl Andreasen, Rui Esteves Araujo

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

15 Citations (Scopus)
841 Downloads (Pure)

Abstract

While a great number of battery balancing circuit topologies have been proposed, the unique control objective typically pursued is equalization of single cell charge. However, a balancing circuit could offer potentially more control features, especially with topologies able to provide bidirectional power flow control. This has not been explored yet in literature or at least not with enough thoroughness. Thus, in addition to charge balancing, up to three more objectives could be pursued simultaneously. Firstly, virtual resistance control, in order to provide dynamic compensation for variations in terminal cell voltage. Secondly, thermal management, to achieve a more uniform temperature distribution within a battery pack. Third, on-board diagnosis or fault detection tools, e.g. to perform characterization tests or to identify and even isolate problematic cells. In this paper, this issue is discussed and evaluated for a battery pack made up of 48 large format Li-Ion cells in series in a e-mobility application. Simulation results demonstrate the technical feasibility of this newly defined concept.
Original languageEnglish
Title of host publicationProceedings of the 2014 IEEE Vehicle Power and Propulsion Conference (VPPC)
Number of pages7
Place of PublicationCoimbra
PublisherIEEE Press
Publication dateOct 2014
DOIs
Publication statusPublished - Oct 2014
EventThe 2014 IEEE Vehicle Power and Propulsion Conference (VPPC) - Coimbra, Portugal
Duration: 27 Oct 201430 Oct 2014

Conference

ConferenceThe 2014 IEEE Vehicle Power and Propulsion Conference (VPPC)
CountryPortugal
CityCoimbra
Period27/10/201430/10/2014

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