Title :
Novel bidirectional DC-DC converter with high step-up/down voltage gain
Author :
Hong, Ci-Ming ; Yang, Lung-Sheng ; Liang, Tsorng-Juu ; Chen, Jiann-Fuh
Author_Institution :
Dept. of Electr. Eng., Nat. Cheng-Kung Univ., Tainan, Taiwan
Abstract :
This paper presents a novel bidirectional DC-DC converter with high step-up/down voltage gain by using the coupled-inductor technique. The high step-up voltage gain is achieved when the energy is transferred from the battery to DC-bus, and the high step-down voltage gain is achieved from DC-bus to the battery. High efficiency is obtained since the energy stored in leakage-inductor is recycled. Also, the operating principles and voltage gain of the proposed converter are discussed in detailed. Finally, a laboratory prototype with battery voltage 24 V, DC-bus voltage 200 V and output power 200 W is implemented to validate theoretical analysis.
Keywords :
DC-DC power convertors; inductors; DC-bus voltage; bidirectional DC-DC converter; coupled-inductor technique; leakage-inductor; step-down voltage gain; step-up voltage gain; Bidirectional DC-DC converter; voltage gain;
Conference_Titel :
Energy Conversion Congress and Exposition, 2009. ECCE 2009. IEEE
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-4244-2893-9
Electronic_ISBN :
978-1-4244-2893-9
DOI :
10.1109/ECCE.2009.5316477
