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Publication type: Conference paper
Type of review: Not specified
Title: A novel non-isolated active charge balancing architecture for lithium-ion batteries
Authors: Räber, Manuel
Hink, Dominic
Heinzelmann, Andreas
Abdeslam, Djaffar Ould
DOI: 10.21256/zhaw-3937
Proceedings: 2018 IEEE 27th International Symposium on Industrial Electronics (ISIE)
Page(s): 471
Pages to: 475
Conference details: 27th IEEE International Symposium on Industrial Electronics (ISIE), Cairns, 13-15 June 2018
Issue Date: 2018
Publisher / Ed. Institution: IEEE
ISBN: 978-1-5386-3705-0
ISSN: 2163-5145
Language: English
Subject (DDC): 
Abstract: Active charge balancing is an approved technique to implement high performance lithium-ion battery systems. Enhanced balancing speeds and reduced balancing losses are feasible compared to passive balancing. The new architecture proposed in this paper overcomes several drawbacks of other active balancing methods. It consists of only 2 non-isolated DC/DC converters. In combination with a MOSFET switch matrix it is able to balance arbitrary cells of a battery system at high currents. Adjacent cells can be balanced simultaneously. For the given setting, numerical simulations show an overall balancing efficiency of approx. 92.5%, compared to 89.4% for a stack-to-cell-to-stack method (St2C2St, bidirectional fly-back) at similar balancing times. The usable capacity increases from 97.1% in a passively balanced system to 99.5% for the new method.
Fulltext version: Accepted version
License (according to publishing contract): Licence according to publishing contract
Departement: School of Engineering
Organisational Unit: Institute of Energy Systems and Fluid Engineering (IEFE)
Appears in collections:Publikationen School of Engineering

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