VRLA电池SOC估算的改进方法
发布时间：2018-10-09 08:06
【摘要】：对VRLA电池的荷电状态(state of charge,SOC)进行估算是蓄电池能量管理的前提。考虑蓄电池充放电电流、工作温度和充放电循环次数等因素影响估算电池SOC的准确度,对传统的能量法进行了修正;通过在电池电压恢复特性曲线基础上建立开路电压预测模型,提取电池E-SOC关系曲线,用于电动势法在线估算;分析两种估算SOC方法的特点,提出了改进的能量-电动势法SOC在线估算的改进方法,从而达到各取所长,优势互补的效果。实验结果表明改进的能量-电动势法SOC估算方法简单实用、准确度高。
[Abstract]:The estimation of charged state (state of charge,SOC of VRLA battery is the premise of battery energy management. Considering the charge and discharge current of battery, working temperature and cycle times of charge and discharge, etc., the accuracy of estimating battery SOC is affected, and the traditional energy method is modified. The open circuit voltage prediction model is established on the basis of the voltage recovery characteristic curve of the battery, and the E-SOC relation curve of the battery is extracted for the on-line estimation of the electromotive force method, and the characteristics of the two methods for estimating SOC are analyzed. An improved method for on-line estimation of SOC using energy-electromotive force method is put forward in order to achieve the effect of taking advantages and complementing each other's advantages. The experimental results show that the improved energy EMF SOC estimation method is simple and practical with high accuracy.
【作者单位】： 宁夏大学物理电气信息学院;宁夏大学资产管理处;
【基金】：国家自然科学基金资助项目(51167015) 宁夏自然科学基金资助项目(NZ12160)
【分类号】：TM912
[Abstract]:The estimation of charged state (state of charge,SOC of VRLA battery is the premise of battery energy management. Considering the charge and discharge current of battery, working temperature and cycle times of charge and discharge, etc., the accuracy of estimating battery SOC is affected, and the traditional energy method is modified. The open circuit voltage prediction model is established on the basis of the voltage recovery characteristic curve of the battery, and the E-SOC relation curve of the battery is extracted for the on-line estimation of the electromotive force method, and the characteristics of the two methods for estimating SOC are analyzed. An improved method for on-line estimation of SOC using energy-electromotive force method is put forward in order to achieve the effect of taking advantages and complementing each other's advantages. The experimental results show that the improved energy EMF SOC estimation method is simple and practical with high accuracy.
【作者单位】： 宁夏大学物理电气信息学院;宁夏大学资产管理处;
【基金】：国家自然科学基金资助项目(51167015) 宁夏自然科学基金资助项目(NZ12160)
【分类号】：TM912
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