精确的电池模型是动力电池荷电状态(State of Charge,SOC)估计的基础,提高模型精度可从电池内部特性出发。提出二阶阻容可变参数等效电路模型,能够反映电池内部双极化效应,同时用可变的参数描述电池内部动态变化过程。通过对锂离子电池...精确的电池模型是动力电池荷电状态(State of Charge,SOC)估计的基础,提高模型精度可从电池内部特性出发。提出二阶阻容可变参数等效电路模型,能够反映电池内部双极化效应,同时用可变的参数描述电池内部动态变化过程。通过对锂离子电池充放电实验和HPPC测试,结合MATLAB拟合工具,辨识出不同SOC下各参数的值,基于SIMULINK搭建仿真模型。对比仿真结果,所建立模型的端电压平均误差为12.36mV,相比于固定参数传统模型的31.50mV,精度提高了60.76%,更能准确描述锂离子电池内部的静动态特性。展开更多
Along the line of the classical generalized linear model,the classical generalized linear model is improved in this article by assuming the partial coefficients of the regressors to be arbitrary functions of the point...Along the line of the classical generalized linear model,the classical generalized linear model is improved in this article by assuming the partial coefficients of the regressors to be arbitrary functions of the points in some metric space.This new type of regression model is called in this article semiparametric vary coefficient generalized linear model and the back fitting approach is suggested to fit the proposed model,and the smoothing parameter therein are studied.The proposed model not only have higher flexibility and adaptability,but also is suitable for analysis spatial data and therefore has extensive application backgrounds.展开更多
提出一种可变参数新一代汽车合作伙伴计划(PNGV)等效电路模型,结合锂离子电池的荷电状态(SOC),将欧姆电阻、极化电阻和极化电容等设置为随SOC变化的动态参数。采用混合动力脉冲功率特性(HPPC)测试分析磷酸铁锂锂离子电池,利用最小二乘...提出一种可变参数新一代汽车合作伙伴计划(PNGV)等效电路模型,结合锂离子电池的荷电状态(SOC),将欧姆电阻、极化电阻和极化电容等设置为随SOC变化的动态参数。采用混合动力脉冲功率特性(HPPC)测试分析磷酸铁锂锂离子电池,利用最小二乘法进行参数辨识。通过MATLAB/SIMULINK搭建仿真模型,发现基于可变参数的PNGV模型,平均误差为8.68 m V,相对于传统PNGV模型的17.76 m V更能体现锂离子电池的使用特性。展开更多
文摘精确的电池模型是动力电池荷电状态(State of Charge,SOC)估计的基础,提高模型精度可从电池内部特性出发。提出二阶阻容可变参数等效电路模型,能够反映电池内部双极化效应,同时用可变的参数描述电池内部动态变化过程。通过对锂离子电池充放电实验和HPPC测试,结合MATLAB拟合工具,辨识出不同SOC下各参数的值,基于SIMULINK搭建仿真模型。对比仿真结果,所建立模型的端电压平均误差为12.36mV,相比于固定参数传统模型的31.50mV,精度提高了60.76%,更能准确描述锂离子电池内部的静动态特性。
文摘Along the line of the classical generalized linear model,the classical generalized linear model is improved in this article by assuming the partial coefficients of the regressors to be arbitrary functions of the points in some metric space.This new type of regression model is called in this article semiparametric vary coefficient generalized linear model and the back fitting approach is suggested to fit the proposed model,and the smoothing parameter therein are studied.The proposed model not only have higher flexibility and adaptability,but also is suitable for analysis spatial data and therefore has extensive application backgrounds.
文摘提出一种可变参数新一代汽车合作伙伴计划(PNGV)等效电路模型,结合锂离子电池的荷电状态(SOC),将欧姆电阻、极化电阻和极化电容等设置为随SOC变化的动态参数。采用混合动力脉冲功率特性(HPPC)测试分析磷酸铁锂锂离子电池,利用最小二乘法进行参数辨识。通过MATLAB/SIMULINK搭建仿真模型,发现基于可变参数的PNGV模型,平均误差为8.68 m V,相对于传统PNGV模型的17.76 m V更能体现锂离子电池的使用特性。
