A grey-predicted Li-ion battery charge system

In this paper, a Li-ion battery is considered as a grey system and a predictable Li-ion battery charge system is implemented using the grey prediction theory. The proposed grey-predicted Li-ion battery charge system (GP-LBCS) can decrease charge time and avoid overcharge to increase life cycle. To assess the system performance, a prototype of the GP-LBCS is implemented. Experiments shown that the GM(1,1) model can precisely predict the Li-ion battery voltage, and the charge speed is increased about 16% such that the safe charge condition is held. These experimental results are very attractive as theory predicts.

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