Design of Digital Battery Charger System Based on PV-Module
This paper have completed SEPIC converter circuit board and implemented the fuzzy control strategy. In order to obtain the high efficient solar cell energy conversion, a FMPPT control is activated if the solarization is insufficient. The fuzzy controller has been successfully to maintain a charged current so as that the battery voltage can reach to desired value, 0.1C charged current command and 0.01C floating charged current command. Three cases of the experimental results show that the circuit design and the proposed charge strategy are effective and feasible.