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

fYear

2013

fDate

22-25 April 2013

Firstpage

211

Lastpage

216

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Drive Systems (PEDS), 2013 IEEE 10th International Conference on

Conference_Location

Kitakyushu

ISSN

2164-5256

Print_ISBN

978-1-4673-1790-0

Electronic_ISBN

2164-5256

Type

conf

DOI

10.1109/PEDS.2013.6527016

Filename

6527016