DocumentCode :
3458442
Title :
An energy storage system combining a 320-V, 12-F electric double layer capacitor bank with a bidirectional isolated DC-DC converter
Author :
Tan, Nadia M L ; Inoue, Shigenori ; Kobayashi, Atsushi ; Akagi, Hirofumi
Author_Institution :
Dept. of Electr. & Electron. Eng., Tokyo Inst. of Technol., Tokyo
fYear :
2008
fDate :
24-28 Feb. 2008
Firstpage :
661
Lastpage :
667
Abstract :
This paper describes the design and construction of a 320-V, 12-F EDLC energy storage bank connected to a bidirectional isolated DC-DC converter. A trade-off between two types of EDLC bank configurations is considered with focus on voltage balancing circuits. This paper also proposes a center-tapped-transformer voltage balancing circuit for the EDLC bank, and includes its experimental verifications. Following that, the experimental charge-discharge characteristics of the EDLC energy storage system, along with a self-starting result is discussed. The power loss in the voltage balancing circuit in the charge-discharge operation is found to be negligibly small. An observed low ripple current flowing into the EDLC bank is also theoretically analyzed.
Keywords :
DC-DC power convertors; capacitor storage; electrolytic capacitors; bidirectional isolated DC-DC converter; center-tapped-transformer voltage balancing circuit; charge-discharge operation; electric double layer capacitor bank; energy storage bank; power loss; ripple current; voltage 320 V; Batteries; Capacitance; Circuits; DC-DC power converters; Electrodes; Energy storage; Modular construction; Supercapacitors; Voltage control; Wind energy generation; bidirectional isolated dc-dc converter; electric double layer capacitor (EDLC); voltage balancing;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Applied Power Electronics Conference and Exposition, 2008. APEC 2008. Twenty-Third Annual IEEE
Conference_Location :
Austin, TX
ISSN :
1048-2334
Print_ISBN :
978-1-4244-1873-2
Electronic_ISBN :
1048-2334
Type :
conf
DOI :
10.1109/APEC.2008.4522792
Filename :
4522792
Link To Document :
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