电压控制Buck-Boost电池充电均衡器  

Active battery charge equalization with voltage controlled vertical buck-boost switching cells

作　　者：谢莉 蒋伟 

机构地区：[1]扬州大学水利与能源动力工程学院,江苏扬州225127

出　　处：《蓄电池》2015年第1期10-13,22,共5页Chinese LABAT Man

基　　金：江苏省自然科学基金(BK2012266);国家自然科学基金(51207135)

摘　　要：本文研究了储能设备的均衡充电方法。采用垂直Buck-Boost电路作为均衡器的基本交换单元。在不同的负载条件下,用状态空间平均法和小信号分析法获得对应的开关单元模型。通过电压控制均衡方案,利用电压环补偿设备端电压,电流内环使得电荷定向移动。实验结果表明,所提出的均衡器能实现电荷最快移动并能有效地收敛到零电压差,本地控制器能快速、准确地跟踪参考值。This paper investigates the active charge equalization method for energy storage devices. The vertical buck-boost circuit is used as the basic switching cell of this equalizer. By applying state-space averaging and small signal analysis, the model of the switching cell is obtained under different load condition. A voltage controlled equalization scheme is presented, which is featured with voltage loop to equalize the terminal voltage and inner current loop for charge shuttling. The simulation and experimental results indicate that the proposed equalizer can effectively converge to zero voltage difference condition by offering a maximized charge shuttling effort, and the local controller can react fast and precisely to the reference command.

关 键 词：均衡充电 电压控制 BUCK-BOOST变换器 储能设备 

分 类 号：TM912.9[电气工程—电力电子与电力传动]