Title :
A battery power bank of serial battery power modules with buck-boost converters
Author :
Chih-Hao Hou ; Chun-Ti Yen ; Tsung-Hsi Wu ; Chin-Sien Moo
Author_Institution :
Dept. of Electr. Eng., Nat. Sun Yat-sen Univ., Kaohsiung, Taiwan
Abstract :
The operation of a battery power bank with buck-boost battery power modules (BPMs) connected in series is studied. With serial configuration, the output currents of all BPMs are the same as the load current. However, the currents from batteries can be scheduled in accordance with the state-of-charges (SOCs) by adjusting the duty-ratios of the associated power converters for balanced discharging. With such a configuration, in addition to discharge equalization capability, those BPMs with completely exhausted or damaged batteries can be isolated from the battery power bank without interrupting the system operation.
Keywords :
power convertors; secondary cells; BPM; SOC; battery power bank; buck-boost converter; discharge equalization capability; load current; power converter; serial battery power module; state-of-charge; Batteries; Battery charge measurement; Capacitors; Inductors; System-on-chip; Voltage control; Voltage measurement;
Conference_Titel :
Power Electronics and Drive Systems (PEDS), 2013 IEEE 10th International Conference on
Conference_Location :
Kitakyushu
Print_ISBN :
978-1-4673-1790-0
Electronic_ISBN :
2164-5256
DOI :
10.1109/PEDS.2013.6527016
