Development of Lithium-ion Battery Pack Balanced Controller Based on Fuzzy Control
For the characteristics of time variation, nonlinearity and uncertainty which exist in balancing process of Lithium-ion battery pack, and for strong coupling between internal error voltage and external load current, this paper proposes a fuzzy control balancing algorithm based on closed-loop energy model. In this paper, the maximum degree of nonequilibrium and external load current is regarded as the inputs, and the duty cycle of drive signal of power switch as the output in single cells. This algorithm solves such a bottleneck that conventional PID control cannot further improve the equalization performance. Simulation experiments about static equilibrium without load and about dynamic equilibrium with load were carried out. Results show that the proposed balancing algorithm has good control accuracy and it can improve the equalization performance of lithium-ion batteries.
component lithium-ion battery pack fuzzy control balancing algorithm maximum degree of non-equilibrium
Jia De Li Zhang Feng Hui Zhang Tian Yong Xu Peng
College of Automation and Harbin University of Science and Technology Harbin,Heilongjiang Province,C Production Engineering Research Institute Daqing Oilfield Company Ltd Daqing,163453,China College of Automation and Harbin University of Science and TechnologyHarbin,Heilongjiang Province,Ch
国际会议
The 6th International Forum on Strategic Technology(IFOST 2011)(第六届国际战略技术论坛)
哈尔滨
英文
265-268
2011-08-22（万方平台首次上网日期，不代表论文的发表时间）