A Unified Control Strategy for Inductor-Based Active Battery Equalisation Schemes

Series battery equalisation can improve battery charge and discharge reliability and extend battery life. Inductor-based battery equalisation schemes have the advantages of simple topologies and control strategies. According to the energy transfer pathway, inductor-based battery equalisation schemes...

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Main Authors: Xintian Liu, Zhihao Wan, Yao He, Xinxin Zheng, Guojian Zeng, Jiangfeng Zhang
Format: Article
Language:English
Published: MDPI AG 2018-02-01
Series:Energies
Subjects:
Online Access:http://www.mdpi.com/1996-1073/11/2/405
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author Xintian Liu
Zhihao Wan
Yao He
Xinxin Zheng
Guojian Zeng
Jiangfeng Zhang
author_facet Xintian Liu
Zhihao Wan
Yao He
Xinxin Zheng
Guojian Zeng
Jiangfeng Zhang
author_sort Xintian Liu
collection DOAJ
description Series battery equalisation can improve battery charge and discharge reliability and extend battery life. Inductor-based battery equalisation schemes have the advantages of simple topologies and control strategies. According to the energy transfer pathway, inductor-based battery equalisation schemes can be divided into cell-to-cell and cell-to-pack equalisation schemes. The control strategies of the cell-to-cell schemes are simple; the inductor can only transfer energy between the neighbouring cells, so the equalisation speed is low. The cell-to-pack schemes are able to accomplish energy transfer between the cells and pack by charging and discharging the inductors. The equalisation speed is high, but the control strategies may be complex. In this paper, different equalisation topologies are reviewed, then a unified control strategy which is applicable to all of the inductor-based equalisation topologies is proposed. The equalisation speeds and efficiencies of these different schemes, including the newly-proposed unified control strategy, are analysed and compared. Based on the theoretical analysis, simulations, and experimental verifications, it is concluded that this unified control strategy can perform the battery equalisation process quickly and efficiently.
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spelling doaj.art-56c681eb152c4f13b740f6c8c8228b0f2022-12-22T03:59:59ZengMDPI AGEnergies1996-10732018-02-0111240510.3390/en11020405en11020405A Unified Control Strategy for Inductor-Based Active Battery Equalisation SchemesXintian Liu0Zhihao Wan1Yao He2Xinxin Zheng3Guojian Zeng4Jiangfeng Zhang5Clean Energy Automotive Research Institute, Hefei University of Technology, Hefei 230009, ChinaClean Energy Automotive Research Institute, Hefei University of Technology, Hefei 230009, ChinaClean Energy Automotive Research Institute, Hefei University of Technology, Hefei 230009, ChinaClean Energy Automotive Research Institute, Hefei University of Technology, Hefei 230009, ChinaClean Energy Automotive Research Institute, Hefei University of Technology, Hefei 230009, ChinaSchool of Electrical and Data Engineering, University of Technology Sydney, Ultimo, NSW 2007, AustraliaSeries battery equalisation can improve battery charge and discharge reliability and extend battery life. Inductor-based battery equalisation schemes have the advantages of simple topologies and control strategies. According to the energy transfer pathway, inductor-based battery equalisation schemes can be divided into cell-to-cell and cell-to-pack equalisation schemes. The control strategies of the cell-to-cell schemes are simple; the inductor can only transfer energy between the neighbouring cells, so the equalisation speed is low. The cell-to-pack schemes are able to accomplish energy transfer between the cells and pack by charging and discharging the inductors. The equalisation speed is high, but the control strategies may be complex. In this paper, different equalisation topologies are reviewed, then a unified control strategy which is applicable to all of the inductor-based equalisation topologies is proposed. The equalisation speeds and efficiencies of these different schemes, including the newly-proposed unified control strategy, are analysed and compared. Based on the theoretical analysis, simulations, and experimental verifications, it is concluded that this unified control strategy can perform the battery equalisation process quickly and efficiently.http://www.mdpi.com/1996-1073/11/2/405electric vehiclebattery packequalisation topologyequalisation speedequalisation efficiency
spellingShingle Xintian Liu
Zhihao Wan
Yao He
Xinxin Zheng
Guojian Zeng
Jiangfeng Zhang
A Unified Control Strategy for Inductor-Based Active Battery Equalisation Schemes
Energies
electric vehicle
battery pack
equalisation topology
equalisation speed
equalisation efficiency
title A Unified Control Strategy for Inductor-Based Active Battery Equalisation Schemes
title_full A Unified Control Strategy for Inductor-Based Active Battery Equalisation Schemes
title_fullStr A Unified Control Strategy for Inductor-Based Active Battery Equalisation Schemes
title_full_unstemmed A Unified Control Strategy for Inductor-Based Active Battery Equalisation Schemes
title_short A Unified Control Strategy for Inductor-Based Active Battery Equalisation Schemes
title_sort unified control strategy for inductor based active battery equalisation schemes
topic electric vehicle
battery pack
equalisation topology
equalisation speed
equalisation efficiency
url http://www.mdpi.com/1996-1073/11/2/405
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