摘要
SOC的估算对电动汽车锂电池的管理至关重要。该文提出了一种改进的安时积分法,在传统安时积分的基础上考虑温度对电池充放电的影响,及静置时间对SOC初值的影响,及时对SOC的初值进行修正,避免了传统安时积分法对误差的累积。以磷酸铁锂电池为例搭建实验平台,得到计算所需参数,并且验证了设计思路的可行性。
State of Charge（SOC） Estimation is Very important to Li-ion Battery management of Electric Vehi- cle.An improved ampere-hour integral method is put forward in the paper.Based on the traditional am- pere-hour integral method,the effect of temperature on the battery charge and discharge,and the influence of reset time on the initial value of SOC have been considered.The initial value of S^C has been revised in time.The disadvantage of error accumulation for t^aditional ampere-hour integral method has been avoided. LiFePO4 Li-ion batteries are used to build experimental platform in this paper.The needed parameters which will be used to calculate SOC has been obtained,and the feasibility of the design has been verified by the experimental platform.
出处
《电子质量》
2013年第6期56-59,共4页
Electronics Quality
关键词
电动汽车锂电池
SOC估算
改进的安时积分法
Li-ion Battery of Electric Vehicle
SOC Estimation
improved ampere-hour integral method
