SoH-Aware Reconfiguration in Battery Packs

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dc.contributor.authorHe, L.
dc.contributor.authorYang, Z.
dc.contributor.authorGu, Y.
dc.contributor.authorLiu, Cong
dc.contributor.authorHe, T.
dc.contributor.authorShin, K. G.
dc.contributor.utdAuthorLiu, Cong
dc.date.accessioned2019-08-30T19:08:28Z
dc.date.available2019-08-30T19:08:28Z
dc.date.created2018-07-19
dc.descriptionFull text access from Treasures at UT Dallas is restricted to current UTD affiliates (use the provided Link to Article).
dc.description.abstractCell imbalance, a notorious but widely found issue, degrades the performance and reliability of large battery packs, especially for cells connected in series where their overall capacity delivery is dominated by the weakest cell. In this paper, we exploit the emerging reconfigurable battery packs to mitigate the cell imbalance via the joint consideration of system reconfigurability and State-of-Health (SoH) of cells. Via empirical measurements and validation, we observe that more capacity can be delivered when cells with similar SoH are connected in series during discharging. Based on this observation, we propose two SoH-aware reconfiguration algorithms focusing on fully and partially reconfigurable battery packs, and prove their (near) optimality in capacity delivery. We evaluate the proposed reconfiguration algorithms analytically, experimentally, and via emulations, showing 10%-60% improvement in capacity delivery when compared with SoH-oblivious approaches, especially when facing severe cell imbalance. © 2010-2012 IEEE.
dc.description.departmentErik Jonsson School of Engineering and Computer Science
dc.description.sponsorshipThis work was supported in part by the NSF under Grant CNS-1329702, Grant CNS-1446117, and Grant CNS-1503590, and in part by the State Key Laboratory of Industrial Control Technology under Grant ICT1600206 and Grant NSFC-61402372.
dc.identifier.bibliographicCitationHe, L., Z. Yang, Y. Gu, C. Liu, et al. 2018. "SoH-aware reconfiguration in battery packs." IEEE Transactions on Smart Grid 9(4): 3727-3735, doi:10.1109/TSG.2016.2639445
dc.identifier.issn1949-3053
dc.identifier.issue4
dc.identifier.urihttps://hdl.handle.net/10735.1/6825
dc.identifier.volume9
dc.language.isoen
dc.publisherInstitute of Electrical and Electronics Engineers Inc.
dc.relationThe original manuscript was published 2016-12-14 and is available at ICCPS’15 [1], paper no. TSG-00747-2016. This is the current version published 2018-06-19.
dc.relation.urihttp://dx.doi.org/10.1109/TSG.2016.2639445
dc.rights©2016 IEEE
dc.source.journalIEEE Transactions on Smart Grid
dc.subjectElectric batteries
dc.subjectElectric discharges
dc.subjectBattery management systems
dc.subjectAlgorithms
dc.titleSoH-Aware Reconfiguration in Battery Packs
dc.type.genrearticle

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