전력전자학회:학술대회논문집 (Proceedings of the KIPE Conference)
- 전력전자학회 2010년도 하계학술대회 논문집
- /
- Pages.420-421
- /
- 2010
Multi-module Equalizer Circuit for Series-Connected Li-ion Batteries
-
Shin, Jong-Won
(School of Electrical Engineering and Computer Science, Seoul National University) ;
-
Seo, Gab-Su
(School of Electrical Engineering and Computer Science, Seoul National University) ;
- Kim, Jong-Hoon (School of Electrical Engineering and Computer Science, Seoul National University) ;
-
Cho, Bo-Hyung
(School of Electrical Engineering and Computer Science, Seoul National University)
- 발행 : 2010.07.06
초록
In this paper, a multi-module selective battery equalizer for series-connected Li-ion battery pack is proposed. Selective Equalizer (SE) scheme achieves smaller volume and lighter weight than individual cell equalizer (ICE) by minimizing the part count of bulky circuit element. However, SE scheme shows slow balancing speed when the voltage imbalance simultaneously occurs in more than one cell. The proposed multi-module overcomes the problem by employing multiple power converters. Prototype hardware is implemented and experimented with 14Ah battery cells to validate the performance of the proposed equalizer.
키워드