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Energies 2016, 9(4), 298; doi:10.3390/en9040298

Multi-Objective Predictive Balancing Control of Battery Packs Based on Predictive Current

1,2
,
1,2,* , 1,2,3
and
1,2
1
New Energy Research Center, School of Electric Power, South China University of Technology, Guangzhou 510640, China
2
Guangdong Key Laboratory of Clean Energy Technology, School of Electric Power, South China University of Technology, Guangzhou 510640, China
3
College of Electrical Engineering and Automation, Henan Polytechnic University, Jiaozuo 454000, China
*
Author to whom correspondence should be addressed.
Academic Editor: Peter J. S. Foot
Received: 12 November 2015 / Revised: 21 March 2016 / Accepted: 23 March 2016 / Published: 19 April 2016
View Full-Text   |   Download PDF [3580 KB, uploaded 19 April 2016]   |  

Abstract

Various balancing topology and control methods have been proposed for the inconsistency problem of battery packs. However, these strategies only focus on a single objective, ignore the mutual interaction among various factors and are only based on the external performance of the battery pack inconsistency, such as voltage balancing and state of charge (SOC) balancing. To solve these problems, multi-objective predictive balancing control (MOPBC) based on predictive current is proposed in this paper, namely, in the driving process of an electric vehicle, using predictive control to predict the battery pack output current the next time. Based on this information, the impact of the battery pack temperature caused by the output current can be obtained. Then, the influence is added to the battery pack balancing control, which makes the present degradation, temperature, and SOC imbalance achieve balance automatically due to the change of the output current the next moment. According to MOPBC, the simulation model of the balancing circuit is built with four cells in Matlab/Simulink. The simulation results show that MOPBC is not only better than the other traditional balancing control strategies but also reduces the energy loss in the balancing process. View Full-Text
Keywords: predictive current; multi-objective balancing control; battery pack; voltage balancing; SOC balancing predictive current; multi-objective balancing control; battery pack; voltage balancing; SOC balancing
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Li, W.; Kang, L.; Guo, X.; Yao, Y. Multi-Objective Predictive Balancing Control of Battery Packs Based on Predictive Current. Energies 2016, 9, 298.

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