Title :
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
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;
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
DOI :
10.1109/ECCTD.2009.5274963
