Title :
Novel high efficiency and high conversion ratio DC-DC converter for EDLC
Author :
Murata, Atsuo ; Goto, Satoshi ; Sato, Takao ; Nishijima, K. ; Nabeshima, T.
Author_Institution :
Dept. of Electr. & Electron. Eng, Oita Univ., Oita, Japan
Abstract :
This paper presents a new high efficiency DC-DC converter for electric double layer capacitor (EDLC). The bi-directional two-stage converter combined with a coupling capacitor and a coupled inductor (CCCI) is used in order to obtain high power efficiency at large voltage conversion ratio. Static characteristics of the proposed converter are analyzed and confirmed by experiments. As a result it is clarified that the power efficiency of the CCCI is higher than that of the single-stage converter and the two-stage converter. This converter can effectively utilize the stored energy of the EDLCs.
Keywords :
DC-DC power convertors; power capacitors; power inductors; supercapacitors; CCCI; DC-DC converter; EDLC; bidirectional two-stage converter; coupling capacitor-coupled inductor; electric double layer capacitor; energy storage; single-stage converter; voltage conversion ratio; Capacitors; Couplings; Discharges (electric); Inductors; Renewable energy sources; Switches; Switching circuits; EDLC; bi-directional; dc-to-dc converter;
Conference_Titel :
Renewable Energy Research and Applications (ICRERA), 2013 International Conference on
Conference_Location :
Madrid
DOI :
10.1109/ICRERA.2013.6749754
