Title :
A ZVS bidirectional buck converter applied to hybrid energy storage system
Author :
Cheng Song ; Zhang Yingchao ; Lu Jiaxin ; Zhan Tianwen ; Li Long ; Qian Xisen
Author_Institution :
Key Lab. of Special Power Supply of PLA, Chongqing Commun. Inst., Chongqing, China
fDate :
Aug. 31 2014-Sept. 3 2014
Abstract :
A low-loss, constant-frequency, zero voltage switching (ZVS) modulation strategy for bidirectional buck dc-dc converter, applied to hybrid energy storage system, is proposed in this paper. The synchronous rectification and soft-switching techniques are adopted to reduce the power conversion loss. As the modulation strategy is a software-only solution, there are no additional expenses for the active or passive components. The mathematical model and operation principle of the converter are presented respectively. Simulation and experimental results verified the theoretical analysis, and the highest efficiency of the proposed converter is about 95.5%.
Keywords :
DC-DC power convertors; energy storage; mathematical analysis; modulation; zero voltage switching; ZVS bidirectional buck converter; active components; bidirectional buck dc-dc converter; hybrid energy storage system; mathematical model; modulation strategy; passive components; power conversion loss; soft-switching techniques; software-only solution; synchronous rectification; theoretical analysis; zero voltage switching; Batteries; Discharges (electric); Hybrid power systems; Inductance; Switches; Topology; 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.2014.6940828
