基于凸二次规划的电池均衡系统研究  

Research on battery balancing systems based on convex quadratic programming

作　　者：刘光军 王宇涛 马黎阳 吴铁洲[1] LIU Guangjun;WANG Yutao;MA Liyang;WU Tiezhou(Key Laboratory of Efficient Utilization and Storage Operation Control of Solar Energy in Hubei Province,Hubei University of Technology,Wuhan Hubei 430068,China)

机构地区：[1]湖北工业大学太阳能高效利用及储能运行控制湖北省重点实验室,湖北武汉430068

出　　处：《电源技术》2025年第3期569-576,共8页Chinese Journal of Power Sources

基　　金：国家自然科学基金(51677058)。

摘　　要：为提升锂离子电池组均衡速度,提出一种基于凸二次规划的电池均衡系统。设计一种新型基于Buck-Boost电路的均衡拓扑结构,这种拓扑结构有效减少了均衡路径长度,增加了控制多样性。引入凸二次规划最优控制算法,算法能设定与电池组运行条件相关的不等式约束,使均衡系统在满足安全运行条件的基础之上实现快速均衡。经仿真验证,结果表明:与传统均衡拓扑和控制方法相比,所设计的均衡拓扑和控制方法能够显著提升电池均衡速度,均衡时长缩短33.3%。To improve the balancing speed of lithium-ion battery packs,a battery balancing system based on convex quadratic programming is proposed.First,a novel balanced topology based on a Buck-Boost circuit is designed,which effectively reduces the length of the balancing path and increases control diversity.Next,the convex quadratic programming optimal control algorithm is introduced,which can set inequality constraints related to the operating conditions of the battery pack.This enables the equilibrium system to achieve fast equilibrium while ensuring safe operating conditions.Simulation results demonstrate that,compared with traditional balancing topologies and control methods,the designed balanced topology and control method can significantly improve the balancing speed and reduce the balancing time by 33.3%.

关 键 词：主动均衡 锂离子电池 凸二次规划 均衡速度 

分 类 号：TM912[电气工程—电力电子与电力传动]