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Run-to-Run Control ...
Run-to-Run Control for Active Balancing of Lithium Iron Phosphate Battery Packs
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- Tang, Xiaopeng (author)
- Hong Kong University of Science and Technology
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- Zou, Changfu, 1987 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Wik, Torsten, 1968 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Yao, Ke (author)
- Hong Kong University of Science and Technology
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- Xia, Yongxiao (author)
- Hong Kong University of Science and Technology
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- Wang, Yujie (author)
- University of Science and Technology of China
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- Yang, Duo (author)
- University of Science and Technology of China
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- Gao, Furong (author)
- Hong Kong University of Science and Technology
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(creator_code:org_t)
- 2020
- 2020
- English.
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In: IEEE Transactions on Power Electronics. - 0885-8993 .- 1941-0107. ; 35:2, s. 1499-1512
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Abstract
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- © 1986-2012 IEEE. Lithium iron phosphate battery packs are widely employed for energy storage in electrified vehicles and power grids. However, their flat voltage curves rendering the weakly observable state of charge are a critical stumbling block for charge equalization management. This paper focuses on the real-time active balancing of series-connected lithium iron phosphate batteries. In the absence of accurate in situ state information in the voltage plateau, a balancing current ratio (BCR) based algorithm is proposed for battery balancing. Then, BCR-based and voltage-based algorithms are fused, responsible for the balancing task within and beyond the voltage plateau, respectively. The balancing process is formulated as a batch-based run-to-run control problem, as the first time in the research area of battery management. The control algorithm acts in two timescales, including timewise control within each batch run and batchwise control at the end of each batch. Hardware-in-the-loop experiments demonstrate that the proposed balancing algorithm is able to release 97.1% of the theoretical capacity and can improve the capacity utilization by 5.7% from its benchmarking algorithm. Furthermore, the proposed algorithm can be coded in C language with the binary code in 118 328 bytes only and, thus, is readily implementable in real time.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Reglerteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Control Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Datorsystem (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Computer Systems (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Annan elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Other Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Keyword
- lithium-ion battery
- battery management system
- Active battery balancing
- run-to-run control
Publication and Content Type
- art (subject category)
- ref (subject category)
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- By the author/editor
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Tang, Xiaopeng
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Zou, Changfu, 19 ...
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Wik, Torsten, 19 ...
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Yao, Ke
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Xia, Yongxiao
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Wang, Yujie
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show more...
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Yang, Duo
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Gao, Furong
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show less...
- About the subject
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- ENGINEERING AND TECHNOLOGY
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ENGINEERING AND ...
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and Electrical Engin ...
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and Control Engineer ...
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- ENGINEERING AND TECHNOLOGY
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ENGINEERING AND ...
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and Electrical Engin ...
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and Computer Systems
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- ENGINEERING AND TECHNOLOGY
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ENGINEERING AND ...
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and Electrical Engin ...
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and Other Electrical ...
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Chalmers University of Technology