锂电池内阻及其成组连接对电池管理系统的影响分析
发布时间：2018-08-16 15:52
【摘要】：针对储能式应急电源系统采用磷酸铁锂电池后出现的故障现象,搭建充放电测试平台,基于采样电路原理,分析了电池内阻和极耳连接片上接触电阻对电池电压采集产生影响的原因,从电池PACK工艺和电池管理系统保护阈值设置等方面提出了具体的解决方案。在此基础上,研究了多台电源在充电和放电条件下并联使用时,开路电压对其工作状态和工作电流的自我调节过程。测试结果表明:根据电芯实际性能,合理设置电池管理系统参数,减小电池连接处接触电阻,电源系统便能稳定可靠运行。
[Abstract]:In view of the fault phenomenon of lithium iron phosphate battery used in the energy storage emergency power supply system, a charging and discharging test platform is built, based on the sampling circuit principle. This paper analyzes the reasons why the battery internal resistance and the contact resistance on the electrode connector affect the battery voltage collection, and puts forward some concrete solutions from the battery PACK process and the protection threshold setting of the battery management system. On this basis, the self regulation process of open circuit voltage to its working state and working current is studied when several power sources are used in parallel under the condition of charging and discharging. The test results show that the power supply system can run stably and reliably according to the actual performance of the battery core, setting the parameters of the battery management system reasonably and reducing the contact resistance at the connection of the battery.
【作者单位】： 广西电网公司电力科学研究院;北京安通尼电子技术有限公司;
【分类号】：TM912
本文编号：2186449
[Abstract]:In view of the fault phenomenon of lithium iron phosphate battery used in the energy storage emergency power supply system, a charging and discharging test platform is built, based on the sampling circuit principle. This paper analyzes the reasons why the battery internal resistance and the contact resistance on the electrode connector affect the battery voltage collection, and puts forward some concrete solutions from the battery PACK process and the protection threshold setting of the battery management system. On this basis, the self regulation process of open circuit voltage to its working state and working current is studied when several power sources are used in parallel under the condition of charging and discharging. The test results show that the power supply system can run stably and reliably according to the actual performance of the battery core, setting the parameters of the battery management system reasonably and reducing the contact resistance at the connection of the battery.
【作者单位】： 广西电网公司电力科学研究院;北京安通尼电子技术有限公司;
【分类号】：TM912
【共引文献】
相关期刊论文 前1条
1 唐绍明;李浩;;基于LTC6803-4并联级联技术的BMS电压采集[J];科技创新导报;2014年01期
【二级参考文献】
相关期刊论文 前3条
1 何仕品;朱建新;;锂离子电池管理系统及其均衡模块的设计与研究[J];汽车工程;2009年05期
2 王阳;宁国宝;郑辉;;集中电机驱动纯电动汽车电池包设计[J];汽车技术;2011年07期
3 马冬娜;张海棠;;储能技术在现代电力系统各种状态下的应用[J];科技资讯;2011年34期
，本文编号：2186449
本文链接：https://www.wllwen.com/kejilunwen/dianlilw/2186449.html
