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Energies 2015, 8(3), 1830-1847; doi:10.3390/en8031830

Balancing Control Strategy for Li-Ion Batteries String Based on Dynamic Balanced Point

1
School of Information Engineering, Wuhan University of Technology, Luoshi Road 122, Wuhan 430070, China
2
School of Automation, Wuhan University of Technology, Luoshi Road 122, Wuhan 430070, China
3
Wuhan Zhongyuan Electronic Information Company, Luoyu East Road 6, Wuhan 430074, China
4
The Electrical Engineering College, Guizhou University, Huaxi, Guiyang 550025, China
*
Author to whom correspondence should be addressed.
Academic Editor: Izumi Taniguchi
Received: 20 November 2014 / Revised: 23 January 2015 / Accepted: 6 February 2015 / Published: 4 March 2015
View Full-Text   |   Download PDF [626 KB, uploaded 18 March 2015]   |  

Abstract

The Li-ion battery is becoming the optimal choice for the Electric Vehicle’s (EV) power supply. In order to protect the Li-ion battery from charging damage and to prolong the battery’s life, a special control strategy based on the dynamic balanced point along with a non-dissipative equalizer is presented. The main focus of the proposed control strategy is to insure that the individual cell of a battery pack will be rapidly, efficiently and simultaneously balanced, by adjusting equalizing current of each cell dynamically. In this paper, a model of a four series connected Li-ion batteries pack has been established to evaluate the proposed control strategy. Superior performance is demonstrated by the simulation and experiment. View Full-Text
Keywords: EV; Li-ion battery; dynamic balanced point; control strategy; non-dissipative equalizer; series connected batteries EV; Li-ion battery; dynamic balanced point; control strategy; non-dissipative equalizer; series connected batteries
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Zhang, D.-H.; Zhu, G.-R.; He, S.-J.; Qiu, S.; Ma, Y.; Wu, Q.-M.; Chen, W. Balancing Control Strategy for Li-Ion Batteries String Based on Dynamic Balanced Point. Energies 2015, 8, 1830-1847.

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