Title :
Design of a high-frequency isolated DTHB CLLC bidirectional resonant DC-DC converter
Author :
Yingying Cai ; Cong Wang ; Feng Zhao ; Ruiqi Dong
Author_Institution :
Dept. of Inf. & Electr. Eng., China Univ. of Min. & Technol. (Beijing), Beijing, China
fDate :
Aug. 31 2014-Sept. 3 2014
Abstract :
A novel high-frequency isolated dual three-level neutral point clamped (NPC) half bridge (DTHB) CLLC bidirectional resonant DC-DC converter with a symmetric series LC resonant network is proposed for a transformerless high power cascaded multi-level converter. This converter combines the advantages of bidirectional three-level half-bridge converters and the LC resonant converter and can be used in high power high voltage applications. This paper analyses the operating modes and characteristics of the equivalent circuit in detail. Then a design example is given to verify the analysis. In the end, the experimental results are shown which verify the theoretical analysis.
Keywords :
DC-DC power convertors; LC circuits; bridge circuits; cascade networks; equivalent circuits; resonant power convertors; DTHB CLLC bidirectional resonant DC-DC converter; NPC half bridge DC-DC converter; bidirectional three-level half-bridge converters; cascaded multilevel converter; dual three-level neutral point clamped DC-DC converter; equivalent circuit; high power high voltage applications; symmetric series LC resonant network; transformerless high power converter; Bridge circuits; Capacitance; Capacitors; DC-DC power converters; Load flow; Zero current switching; Zero voltage switching;
Conference_Titel :
Transportation Electrification Asia-Pacific (ITEC Asia-Pacific), 2014 IEEE Conference and Expo
Conference_Location :
Beijing
Print_ISBN :
978-1-4799-4240-4
DOI :
10.1109/ITEC-AP.2014.6941091
