便携式锂电池组单体电压在线主动均衡系统  

Portable Lithium Battery Cell Voltage Online Initiative Balancing System

作　　者：何明前 范世军 李朋飞 李占锋[2] 王顺利[2] 夏承成 

机构地区：[1]四川长虹电源有限责任公司,绵阳621000 [2]西南科技大学绵阳,621010111222

出　　处：《电源世界》2013年第11期46-48,共3页The World of Power Supply

基　　金：四川省教育厅资助科研项目(11ZB106)

摘　　要：针对锂电池组充放电过程中的单体均衡问题,基于实时单体参量高精度检测与快速反馈调节原理,设计并实现了一种便携式锂电池组单体电压在线主动均衡系统。该系统在蓄电池组使用过程中的实时采集电压、电流、温度等电池参量,通过蓄电池组总电压给单体充电的方式,实现了蓄电池组各个单体过充、欠充、过放、过温条件下单体间的均衡,系统整体尺寸为160*60*105mm,配备于蓄电池组进行在线均衡调节。实验结果表明,该系统能够实现9只单体的实时主动均衡,尖峰电流均衡响应时间在300s左右实现各个单体之间的电压不平衡度低于5%,达到蓄电池组现场应用中实时主动均衡进而保证安全供能的目标。A portable lithium battery cell voltage line active balancing system was designed and implemented, aiming for the monomer equilibrium problems of lithium batteries during charge and discharge period, based on real-time high-precision detection and rapid parametric feedback regulation principles. The system was used in the process of the battery pack by detecting real-time acquisition voltage, current, temperature and other parameters of the battery. The system achieved every single battery＇s overcharge, charge less, over discharge, over-temperature condition between monomers initiative balance by charging monomer from the total voltage. The overall system size is 160＂60＂105mm, with in-line battery equalization adjustment. Experimental results showed that the system could achieve the 9 monomer real-time proactive equilibrium, the balanced response time of peak current was around 300s, to adjust the monomers＇unbalance less than 5% voltage, reaching real-time on-site battery active balance applications thereby ensuring the energy supply safety target.

关 键 词：锂电池组 主动均衡 高精度检测 在线 反馈调节 

分 类 号：TM912.9[电气工程—电力电子与电力传动]