Battery-charging model to study transient dynamics of battery at high frequency

Author

Cai, Chenghui ; Du Dong ; Ge Jingtian ; Liu, Zhiyu ; Zhang, Hua

Author_Institution

Dept. of Mech. Eng., Tsinghua Univ., Beijing, China

Volume

3

fYear

2002

fDate

28-31 Oct. 2002

Firstpage

1843

Abstract

This paper initially presents a battery-charging model to describe transient dynamics including inductance characteristic of valve regulated lead acid (VRLA) battery during charging at DC current of high frequency ripple. Next, some formulas are introduced to determine the values of key elements of battery model, which are functions of battery state of charge (SOC). A very simple formula is derived to calculate the value of battery inductance L in the model. Then, the battery-charging model is verified via comparisons between simulation and laboratory measurement of charging transient process. Further simulation study shows that battery inductance characteristic has impact on the working state of high frequency switching mode charger (HFSMC) and parameter selection of the components in output unit of charger power transfer main circuit can be optimized.

Keywords

battery chargers; inductance; lead acid batteries; DC current; Pb; Pb-acid valve regulated battery; VRLA battery; battery inductance; battery state of charge; battery-charging model; charger power transfer main circuit; high frequency current ripple; high frequency switching mode; transient dynamics; valve regulated lead acid battery; Batteries; Circuit simulation; Computer aided instruction; Design optimization; Frequency; Inductance; Laboratories; Valves; Vehicle dynamics; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

TENCON '02. Proceedings. 2002 IEEE Region 10 Conference on Computers, Communications, Control and Power Engineering

Print_ISBN

0-7803-7490-8

Type

conf

DOI

10.1109/TENCON.2002.1182695

Filename

1182695