A voltage equalizer applying a charge pump for energy storage systems

Author

Inoue, Tomoshige ; Koizumi, Hirotaka

Author_Institution

Tokyo Univ. of Sci. TUS, Tokyo, Japan

fYear

2009

Firstpage

169

Lastpage

172

Abstract

In battery systems, various types of voltage equalizers are applied to balance the cell voltages. These established equalizers have some issues which are complexity of the circuit topology, power consumption, and inevitable difference caused in the production steps. In this paper, a novel cell voltage equalizer for series-connected EDLCs´ (Electric Double Layer Capacitor) energy storage system is proposed. The proposed equalizer is composed of bidirectional switches added to the series-connected EDLCs. In principle, the proposed equalizer completely balances the cell voltages of the EDLCs. The performance of the equalizer was confirmed with MATLAB/Simulink simulation and circuit experiments.

Keywords

charge pump circuits; circuit simulation; equalisers; supercapacitors; switching circuits; MATLAB; Simulink; battery system; bidirectional switches; charge pump; circuit topology; electric double layer capacitor; energy storage system; series-connected capacitor; voltage equalizer; Batteries; Charge pumps; Circuit topology; Energy consumption; Energy storage; Equalizers; Production; Supercapacitors; Switches; Voltage; EDLC; cell voltage eqalizer; charge pump; energy storage system;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuit Theory and Design, 2009. ECCTD 2009. European Conference on

Conference_Location

Antalya

Print_ISBN

978-1-4244-3896-9

Electronic_ISBN

978-1-4244-3896-9

Type

conf

DOI

10.1109/ECCTD.2009.5274963

Filename

5274963