TY - JOUR
T1 - Bidirectional Resonant Converter With Minimized Switching Loss Over Wide Operating Voltage Range
AU - Bai, Changkyu
AU - Kim, Minsung
N1 - Publisher Copyright:
© 2013 IEEE.
PY - 2022/6/1
Y1 - 2022/6/1
N2 - In this article, we propose a bidirectional resonant converter having minimized switching loss in a wide operating voltage range. This converter serves as a pulsewidth-modulation (PWM) full-bridge resonant-boost converter in the forward operation and a PWM half-bridge resonant-buck converter in the reverse operation. It can then achieve a wide voltage gain range even in the reverse operation. By employing a T-type active voltage doubler, we can attain almost zero voltage switching at the turn-off instants, and so switching loss that occurred at all active switches becomes negligible. Moreover, the circuit experiences very little instantaneous reactive current under wide voltage variations. Therefore, the proposed converter can accomplish a wide range of voltage gains in both power flow directions and high efficiency over a wide range of operating voltages. We present circuit operation and steady-state analysis in detail. We built a 3.3-kW/400-V prototype that copes with 250415-V inputs and tested it to demonstrate the superior quality of its circuit design.
AB - In this article, we propose a bidirectional resonant converter having minimized switching loss in a wide operating voltage range. This converter serves as a pulsewidth-modulation (PWM) full-bridge resonant-boost converter in the forward operation and a PWM half-bridge resonant-buck converter in the reverse operation. It can then achieve a wide voltage gain range even in the reverse operation. By employing a T-type active voltage doubler, we can attain almost zero voltage switching at the turn-off instants, and so switching loss that occurred at all active switches becomes negligible. Moreover, the circuit experiences very little instantaneous reactive current under wide voltage variations. Therefore, the proposed converter can accomplish a wide range of voltage gains in both power flow directions and high efficiency over a wide range of operating voltages. We present circuit operation and steady-state analysis in detail. We built a 3.3-kW/400-V prototype that copes with 250415-V inputs and tested it to demonstrate the superior quality of its circuit design.
KW - Almost zero voltage switching (ZVS) turn-off
KW - bidirectional operation
KW - fixed frequency
KW - high efficiency
KW - minimized switching loss
KW - switching modulation
UR - http://www.scopus.com/inward/record.url?scp=85119587162&partnerID=8YFLogxK
U2 - 10.1109/JESTPE.2021.3117558
DO - 10.1109/JESTPE.2021.3117558
M3 - Article
AN - SCOPUS:85119587162
SN - 2168-6777
VL - 10
SP - 2975
EP - 2988
JO - IEEE Journal of Emerging and Selected Topics in Power Electronics
JF - IEEE Journal of Emerging and Selected Topics in Power Electronics
IS - 3
ER -