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Journal of Zhejiang University SCIENCE A 2001 Vol.2 No.1 P.56-59

http://doi.org/10.1631/jzus.2001.0056


A NOVEL CHARGE AND DISCHARGE EQUALIZATION SCHEME FOR BATTERY STRINGS


Author(s):  PAN Shang-zhi, QIAN Zhao-ming, LEI Na

Affiliation(s):  Dept. of Electrical Engineering, Zhejiang University, Hangzhou 310027, China

Corresponding email(s): 

Key Words:  charge, discharge, equalization, battery string


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PAN Shang-zhi, QIAN Zhao-ming, LEI Na. A NOVEL CHARGE AND DISCHARGE EQUALIZATION SCHEME FOR BATTERY STRINGS[J]. Journal of Zhejiang University Science A, 2001, 2(1): 56-59.

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Abstract: 
A novel charge/discharge equalization scheme is proposed in this paper. According to the states of batteries, two equalizing methods are adopted for equalization during different charging and discharging phases. A switched capacitor is utilized during high rate charging and discharging. During the later period of charging and discharging, an auxiliary low power DC/DC converter and the inherent switch modules of a control/monitor unit are used. So it is very simple and efficient. With the developed equalizer, the lifetime of a series battery string can be extended.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

Reference

[1] Bjork, D. 1993. Maintenance of Batteries-new trends in batteries and automatic battery charging. INTELEC Conf. Proceeding, 11(1):355-360.

[2] Klontz, K. W. 1993. An electric vehicle charging system with universal inductive interface, Proceedings of International Power Electronics Conference. Yokohama, p.227-232.

[3] Lindemark, B., 1986. Individual Cell Voltage Equalizers (ICE) for Reliable Battery Performance. INTELEC Conf. Rec., 11(3):196-201.

[4] Nasser, H. K., Deepak M. D., and Donald W. N., 1995. Charge equalization for series connected battery strings. IEEE Transactions on Industry Applications. 33(3):562-568.

[5] Stephen, T. Hang, Douglas C. Hokins, and Charles R. Mosling, 1993. Extension of battery life via charge equalization control. IEEE Transaction on Industries Electronics, 40(1):96-104.

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