A study of Li-ion battery charge forecasting using Grey theory

Author

Chen, L.R. ; Lin, C.H. ; Hsu, R.C. ; Ku, B.G. ; Liu, C.S.

Author_Institution

Dept. of Aeronaut. Eng., Nat. Huwei Inst. of Technol., Yunlin, Taiwan

fYear

2003

fDate

23-23 Oct. 2003

Firstpage

744

Lastpage

749

Abstract

In this paper, a study of Li-ion battery charge forecasting using Grey theory is presented. A test-bench system for the battery charge forecasting is designed and built. Using this test-bench system, the charge condition for charging Li-ion battery can be easily set and the data of the charged Li-ion battery can be obtained, simultaneously. Experimental results show that the GM(1,1) model can actually predict the Li-ion battery voltage curve when its sampling period is smaller than the safe sampling period. How the safe sampling period determined is presented, and a mathematical formula is for determining the safe sampling period successfully obtained in this paper. Finally, a test example is implemented to assess this proposed Li-ion battery charging forecast method. The experimental results are very attractive as theory predicts.

Keywords

lithium; sampling methods; secondary cells; Grey theory; Li; Li-ion battery charge forecasting; Li-ion battery voltage curve; safe sampling period; test-bench system; Aerospace engineering; Batteries; Condition monitoring; Mathematical model; Mobile communication; Predictive models; Sampling methods; System testing; Temperature; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Telecommunications Energy Conference, 2003. INTELEC '03. The 25th International

Conference_Location

Yokohama, Japan

Print_ISBN

4-88552-196-3

Type

conf

Filename

1252199