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Investigation on dynamic equalisation performance of lithium battery pack management
Lv, Jie1; Song, Wenji1; Lin, Shili1; Feng, Ziping1; Ding, Yulong2; Li, Yongliang2
2017-07-01
Source PublicationIET CIRCUITS DEVICES & SYSTEMS
Volume11Issue:4Pages:388-394
AbstractLithium batteries must be connected in series to achieve large capacity and high-power output. Battery management system (BMS), which is designed to protect battery pack from damage and increase battery life, is important in electrical power system. The present equalisation techniques have many disadvantages: The passive balancing wastes energy and generates heat, while active balancing is complex. This study proposes an intelligent BMS with dynamic equalisation (DBMS) which contains active and passive balancing circuit independently per cell. Experimental results indicate that DBMS can reduce the inconsistency among cells. Moreover, the DBMS can assist battery stack to store and release more energy. Besides, the battery stack with DBMS gives an energy efficiency of 96.5% which is 7.7% higher than that without balancing. In addition, the battery stack with DBMS can reduce the maximum state of charge difference of cells from 10.415% to 4.51% after three charge-discharge cycles. What is more, the DBMS is simple and can decrease the auxiliary power level and the system heat. Such a DBMS will help us to provide a high-performance battery pack.
SubtypeArticle
KeywordLithium Primary Cells Battery Management Systems Energy Conservation Li Efficiency 96 5 Percent Auxiliary Power Level Charge-discharge Cycles Energy Efficiency Battery Stack Passive Balancing Circuit Active Balancing Circuit Heat Generation Passive Balancing Wastes Energy Electrical Power System Battery Life Battery Management System Dynamic Equalisation Performance Lithium Battery Pack Management
WOS HeadingsScience & Technology ; Technology
DOI10.1049/iet-cds.2016.0213
WOS Subject ExtendedEngineering
WOS KeywordION BATTERIES ; SYSTEM ; CONVERTER ; MODEL ; STATE ; SOC ; HEV
Indexed BySCI
Language英语
Funding OrganizationNational Natural Science Foundation of China(51477171) ; Science and Technology Project of Guangdong Province(2014B010128001 ; Key Laboratory Foundation of Renewable Energy, Chinese Academy of Sciences(Y607j31001) ; 2015B050501008)
WOS SubjectEngineering, Electrical & Electronic
WOS IDWOS:000409071800014
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/16295
Collection中国科学院广州能源研究所
Affiliation1.Chinese Acad Sci, Guangdong Prov Key Lab New & Renewable Energy Res, CAS Key Lab Renewable Energy, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China
2.Univ Birmingham, Sch Chem Engn, Birmingham B15 2TT, W Midlands, England
Recommended Citation
GB/T 7714
Lv, Jie,Song, Wenji,Lin, Shili,et al. Investigation on dynamic equalisation performance of lithium battery pack management[J]. IET CIRCUITS DEVICES & SYSTEMS,2017,11(4):388-394.
APA Lv, Jie,Song, Wenji,Lin, Shili,Feng, Ziping,Ding, Yulong,&Li, Yongliang.(2017).Investigation on dynamic equalisation performance of lithium battery pack management.IET CIRCUITS DEVICES & SYSTEMS,11(4),388-394.
MLA Lv, Jie,et al."Investigation on dynamic equalisation performance of lithium battery pack management".IET CIRCUITS DEVICES & SYSTEMS 11.4(2017):388-394.
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