Title :
A battery modeling method based on percentage of discharge (POD)
Author :
Zhichao He ; Geng Yang ; Yingjie Chen ; Languang Lu ; Zhanjiang Wang ; Xiaofeng Sun
Author_Institution :
Dept. of Autom., Tsinghua Univ., Beijing, China
Abstract :
Modeling the discharge characteristics of every cell in a battery pack individually is the basic issue for battery management systems (BMS). This paper proposes a simple method for modeling the constant current discharge curves with POD. With this method, precise model of a cell can be built with typical discharge curves, and characteristics of other cells can be estimated. This method can also be used to evaluate the consistency of the cells in a battery pack. The method is verified with experiments on valve-regulated lead-acid (VRLA) batteries and LiFePO4 lithium-ion batteries.
Keywords :
battery charge measurement; battery management systems; lead acid batteries; battery management systems; battery modeling method; constant current discharge curves; lithium ion batteries; percentage of discharge; valve regulated lead acid batteries; Batteries; Discharges (electric); Estimation; Fitting; Integrated circuit modeling; Lead; Mathematical model; battery pack; constant current discharge; modeling; percentage of discharge;
Conference_Titel :
Industrial Electronics (ISIE), 2014 IEEE 23rd International Symposium on
Conference_Location :
Istanbul
DOI :
10.1109/ISIE.2014.6864880
