双向DC/DC变换器锂离子电池组主动均衡控制
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摘要
针对锂离子电池组经过多次充放电带来的电池组容量不一致、使用性能下降等问题,提出一种双向DC/DC变换器锂离子电池主动均衡控制。设计了以Buck-Boost型电路为主体,电感作为储能元件的主动均衡控制拓扑,通过NBT电池测试平台获取4 000组电池充放电数据,计算该均衡控制可使电池差异度从5.35%变为1.82%。实验结果表明:在正常和过充工作环境下均可有效提高电池组充放电的一致性。
The active balance control of lithium ion battery in bi-directional DC/DC converter is proposed to solve the problem that the battery pack capacity is inconsistent and the performance degrades. The Buck-Boost circuit is designed as the main body,the inductor is the active equilibrium control topology of the energy storage element,and 4 000 sets of battery charge discharge data are obtained through the NBT battery test platform. The experimental results show that the balance control can make the difference of battery difference from 5.35% to 1.82%,and can be effectively proposed in the normal and overcharging environment. The uniformity of charge and discharge can be enhanced in the high cell group.
The active balance control of lithium ion battery in bi-directional DC/DC converter is proposed to solve the problem that the battery pack capacity is inconsistent and the performance degrades. The Buck-Boost circuit is designed as the main body,the inductor is the active equilibrium control topology of the energy storage element,and 4 000 sets of battery charge discharge data are obtained through the NBT battery test platform. The experimental results show that the balance control can make the difference of battery difference from 5.35% to 1.82%,and can be effectively proposed in the normal and overcharging environment. The uniformity of charge and discharge can be enhanced in the high cell group.
引文
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[8]黄剑龙,潘庭龙,吴定会.基于SOC的串联电池组新型均衡策略研究[J].系统仿真学报,2017,29(4):832-839.
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[11]赵奕凡,杜常清,颜伏伍.动力电池组能量均衡管理控制策略[J].电机与控制学报,2013,17(10):109-114.
[12]刘红锐,杜春峰,陈仕龙,等.一种基于Cuk斩波电路的双向双层桥臂的蓄电池组均衡器的研究[J].电源学报,2017,15(2):142-147.
[13]凌飞,吴振华.能量均衡的最小连通支配集分布式算法[J].传感技术学报,2012,25(9):1316-1321.
[2]Bragard M,Soltau N,Thomas S,et al.The Balance of Renewable Sources and User Demands in Grids:Power Electronics for Modular Battery Energy Storage Systems[J].IEEE Transactions on Power Electronics,2010,25(12):3049-3056.
[3]Ge B,Liu Y,Abu-Rub H,et al.State-of-Charge Balancing Control for Battery Energy Stored Quasi-Z Source Cascaded Multilevel Inverter Based Photovoltaic Power System[J].IEEE Transactions on Industrial Electronics,2017,PP(99):1-1.
[4]Nikoletseas S,Raptis T P,Raptopoulos C.Interactive Wireless Charging for Weighted Energy Balance[C]//International Conference on Distributed Computing in Sensor Systems.IEEE,2016:262-270.
[5]刘红锐,张昭怀.锂离子电池组充放电均衡器及均衡策略[J].电工技术学报,2015,30(8):186-192.
[6]李泉,周云山,王建德,等.基于双层准谐振开关电容的锂离子电池组均衡方法[J].电工技术学报,2017,32(21):9-15.
[7]冯飞,宋凯,逯仁贵,等.磷酸铁锂离子电池组均衡控制策略及荷电状态估计算法[J].电工技术学报,2015,30(1):22-29.
[8]黄剑龙,潘庭龙,吴定会.基于SOC的串联电池组新型均衡策略研究[J].系统仿真学报,2017,29(4):832-839.
[9]刘红锐,张昭怀.锂离子电池组充放电均衡器及均衡策略[J].电工技术学报,2015,30(8):186-192.
[10]马泽宇,姜久春,文锋,等.用于储能系统的梯次利用锂电池组均衡策略设计[J].电力系统自动化,2014,38(3):106-111.
[11]赵奕凡,杜常清,颜伏伍.动力电池组能量均衡管理控制策略[J].电机与控制学报,2013,17(10):109-114.
[12]刘红锐,杜春峰,陈仕龙,等.一种基于Cuk斩波电路的双向双层桥臂的蓄电池组均衡器的研究[J].电源学报,2017,15(2):142-147.
[13]凌飞,吴振华.能量均衡的最小连通支配集分布式算法[J].传感技术学报,2012,25(9):1316-1321.