TY - JFULL AU - Jong-Bae Lee and Seongsoo Lee PY - 2013/12/ TI - Adaptive Discharge Time Control for Battery Operation Time Enhancement T2 - International Journal of Electrical and Computer Engineering SP - 1424 EP - 1428 VL - 7 SN - 1307-6892 UR - https://publications.waset.org/pdf/17416 PU - World Academy of Science, Engineering and Technology NX - Open Science Index 83, 2013 N2 - This paper proposes an adaptive discharge time control method to balance cell voltages in alternating battery cell discharging method. In the alternating battery cell discharging method, battery cells are periodically discharged in turn. Recovery effect increases battery output voltage while the given battery cell rests without discharging, thus battery operation time of target system increases. However, voltage mismatch between cells leads two problems. First, voltage difference between cells induces inter-cell current with wasted power. Second, it degrades battery operation time, since system stops when any cell reaches to the minimum system operation voltage. To solve this problem, the proposed method adaptively controls cell discharge time to equalize both cell voltages. In the proposed method, battery operation time increases about 19%, while alternating battery cell discharging method shows about 7% improvement. ER -