电源技术2018，Vol.42Issue(2)：183-184,246,3.
基于改进安时积分法估计锂离子电池组SOC
SOC estimation of lithium-ion battery based on improved ampere-hour integral method
杨文荣 1朱赛飞 1陈阳 1朱佳斌 1薛力升1
作者信息
- 1. 上海大学微电子研究与开发中心,上海200072
- 折叠
摘要
Abstract
In order to solve the problem that it is difficult for the ampere-hour integral method to accurately measure the initial charge state (SOC0),coulomb efficiency and variation of available capacityfor lithium-ion battery,an improved ampere-hour integral method was proposed:the second-order equivalent model was established;combining experimental data of constant discharge,the estimated formula of open circuit voltage was deduced to estimate the initial SOC;,through a lot of experiments,the factors of cell aging,coulomb efficiency and total battery capacity change were analyzed,and then the parameters were amended and optimized.The experimental results show that the error of the improved ampere-hour integral method reaches 0.03％.关键词
锂电池组/改进的开路电压法/安时积分法/SOC估算/等效电路模型Key words
lithium-ion battery/improved open-circuit voltage method/ampere-hour integral method/SOC estimation/equivalent circuit model分类
信息技术与安全科学引用本文复制引用
杨文荣,朱赛飞,陈阳,朱佳斌,薛力升..基于改进安时积分法估计锂离子电池组SOC[J].电源技术,2018,42(2):183-184,246,3.
