Title :
Bidirectional secondary LLC resonant converter using auxiliary switches and inductor
Author :
Eun-Soo Kim ; Jun-Hyoung Park ; Yong-Seog Jeon ; Young-Su Kong ; Seung-Min Lee ; Kwangseob Kim
Author_Institution :
Electr. & Electron. Eng., Jeonju Univ., Jeonju, South Korea
Abstract :
A bidirectional secondary LLC resonant converter with auxiliary switches and an additional inductor is proposed to achieve the high gain characteristics of LLC resonant convertors. Auxiliary switches, an additional inductor and a resonant capacitor are connected in the high voltage secondary side of the proposed converter. The ac analysis and operating characteristics of bidirectional secondary LLC resonant converter are investigated. A 1kW prototype bidirectional secondary LLC resonant converter connected to the 400VDC buses is designed and tested to confirm the validity and applicability of the proposed converter.
Keywords :
LC circuits; capacitors; inductors; resonant power convertors; switches; auxiliary switch; bidirectional secondary LLC resonant converter; inductor; power 1 kW; resonant capacitor; voltage 400 V; Capacitors; Equivalent circuits; Frequency conversion; Inductance; Inductors; Resonant frequency; Switches;
Conference_Titel :
Applied Power Electronics Conference and Exposition (APEC), 2014 Twenty-Ninth Annual IEEE
Conference_Location :
Fort Worth, TX
DOI :
10.1109/APEC.2014.6803572
