通信后备锂电池组均衡充电方式的探析  

Analysis of equalization charging modes of communications standby lithium-ion batteries

作　　者：汤秀芬 米晨[2] TANG Xiu-fen;MI Chen(School of Physics and Electronic Electrical Engineering,Ningxia University,Yinchuan Ningxia 750021,China;Department of Asset and Laboratory Management,Ningxia University,Yinchuan Ningxia 750021,China)

机构地区：[1]宁夏大学物理与电子电气工程学院,宁夏银川750021 [2]宁夏大学资产与实验室管理处,宁夏银川750021

出　　处：《电源技术》2020年第9期1348-1350,1374,共4页Chinese Journal of Power Sources

基　　金：宁夏高等学校科学技术研究项目资助(NGY2018029)。

摘　　要：分析通信用后备电源锂电池组均衡充电的特点,提出大阈值电压的均衡控制策略。据此设计制作了锂离子电池组均衡控制电路,分别对电池组进行0.1 C、0.25 C和0.5 C倍率的均衡充电测试。实验结果表明:当电池组因电力系统发生故障放空容量且电力系统又恢复正常后,对充电速度要求较高,宜采用大电流大阈值的均衡充电方式,迅速有效地将电池组充满电,确保后备电源给通讯设备提供稳定的电能。当电池组均衡充电结束后,设定为脉冲浮充充电状态,以节约电能。The characteristics of communications standby lithium-ion batteries were analyzed;the larger charging current and larger threshold voltage of equalization control strategy was put forward.The lithium-ion battery pack equalization control circuit was designed,and the equalization charging experiments at the ratio of 0.1 C,0.25 C and 0.5 C were carried out.The experimental results show that when the battery pack fails to vent capacity due to power system fault and the power system returns to normal,the charging speed is required to be high.The balanced charging mode of large current and large threshold value should be adopted to fully charge the battery pack quickly and effectively,so as to ensure that the backup power supply provides stable power to the communication equipment.When the equalizing charging of the battery pack is finished,it is set to the pulse floating charging state to save electric energy.

关 键 词：后备电源 锂离子电池 均衡充电 阈值电压 

分 类 号：TM912.9[电气工程—电力电子与电力传动]