摘要
针对9个具体放电电流的放电曲线建立了二次函数模型,并求得各模型的平均相对误差(MRE),拟合出相应的函数关系后代入二次模型中即得任意放电电流的放电曲线整体模型,并计算出整体模型的MRE。最后讨论了同一电池以同一电流放电时放电时间所遵循的规律随衰减状态而变化的问题,对此建立了参数受约束的二次模型,根据模型补全了电池衰减状态下已放电时间数据,预测了电压对应的剩余放电时间。
This article presented the quadratic models for discharge curves according to 9 current values, and the mean relative errors （ MRE ） for the models were obtained. After the parameters were fitted and substituted into the expression , the global model for arbitrary current was obtained, and its MRE was computed. At last, the laws of remaining discharge time of the same battery in the same discharge current but in different decaying states were studied and applied to complement the data of the decaying state 3 ,which yields the remaining discharge time.
出处
《电器与能效管理技术》
2017年第7期73-78,共6页
Electrical & Energy Management Technology
关键词
铅酸电池
剩余放电时间
预测
平均相对误差
lead-acid batteries
remaining discharge time
prediction
mean relative errors
