NDLI: A new cell-to-cell balancing circuit with a center-cell concentration structure for series-connected batteries

Content Provider	IEEE Xplore Digital Library
Author	Moon-Young Kim Jun-Ho Kim Jae-Bum Lee Jong-Woo Kim Gun-Woo Moon
Copyright Year	2013
Description	Author affiliation: Dept. of Electr. & Eng., Korea Adv. Inst. of Sci. & Technol. (KAIST), Daejeon, South Korea (Moon-Young Kim; Jun-Ho Kim; Jae-Bum Lee; Jong-Woo Kim; Gun-Woo Moon)
Abstract	A bidirectional cell-to-cell balancing structure using two switches per each cell shows good balancing ability, but many switches lead to increase of the cost and size. To reduce the number of switches, this paper proposes a new cell-to-cell balancing circuit with a center-cell concentration structure. The proposed circuit collects the charges of the overcharged cell into the center-cell, and then the collected charges are redistributed to the other cells. The proposed circuit has unidirectional balancing structure with single switch per each cell, but it can achieve competitive balancing ability compared to bidirectional structure. In this paper, the operational principles of the proposed circuit are analyzed, and the comparison between the proposed and conventional circuits is shown. To verify the validity of the proposed circuit, experiment with 8 batteries is carried out, and the experimental results show the improved cell balancing ability although one switch is used per each cell.
Sponsorship	IEEE Power Electron. Soc.
Starting Page	506
Ending Page	512
File Size	2873750
Page Count	7
File Format	PDF
ISBN	9781479904839
e-ISBN	9781479904822
DOI	10.1109/ECCE-Asia.2013.6579144
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-06-03
Publisher Place	Australia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Microprocessors Magnetomechanical effects Switches Bismuth Stress
Content Type	Text
Resource Type	Article

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