摘要
运用软件处理数据后建立各放电曲线的九次函数模型,计算出各模型的平均相对误差,并求得电池的剩余放电时间.采用指数函数的拟合方式,得到放电电压、电流与时间的回归模型;利用逼近理想点法,计算出MRE评估模型的精度;通过回归模型,建立对应于55A时的放电曲线模型.采用MATLAB统计模型对电压与电池的衰减状态作对比拟合,得出了多项式回归方程,求出了衰减状态3的剩余放电时间.
The residual discharge time of the battery was calculated with the nine-order function models of discharging curves and their mean relative errors, which were established after the data were treated with software. The regression model of discharge voltage, current and time was obtained by fitting the exponential function. The precision of MRE evaluation model was described by approaching ideal point method. The discharge curve model corresponding to 55A was established through the regression model. And the residual discharge time of the decay state 3 was worked out with a polynomial regression equation which was obtained through comparison of the voltage and the attenuation state of the battery by the MATLAB model.
作者
马艳丽
李海霞
聂东明
MA Yanli;LI Haixia;NIE Dongming(General Education Department,Anhui Xinhua University,Hefei,23008)
出处
《玉溪师范学院学报》
2018年第8期35-43,共9页
Journal of Yuxi Normal University
基金
安徽省高校优秀青年人才支持计划项目"几类具有潜伏期和混合控制策略传染病模型的动力学性态研究"
项目编号:gxyq2017125
安徽省教学研究项目"以教学建模为契机-高等数学分层模块化教学在民办应用型本科院校中探索与实践"
项目编号:2016jyxm0481
安徽省精品资源共享课程"高等数学"
项目编号:2016gxk061
安徽新华学院校级教学团队"高等数学"
项目编号:2016jxtdx03
安徽新华学院"骨干教师"
项目编号:2018jxgg31
关键词
铅酸电池
剩余放电时间
平均相对误差
数学模型
lead-acid batteries
residual discharge time
mean relative errors
mathematical model
