TY - JOUR
T1 - Cyclic Modulation of Active-Clamped Single Power-Conversion AC-DC Converter for Self-Loss Balancing
AU - Bai, Changkyu
AU - Kim, Minsung
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2024/4/1
Y1 - 2024/4/1
N2 - In this article, we propose a highly efficient active-clamped resonant ac/dc converter with self-loss balancing capability. The proposed ac/dc converter employs a full-bridge active clamp circuit at the grid side and a series resonant circuit with voltage-doubler at the load side. By incorporating the full-bridge active clamp circuit, an input full bridge rectifier can be removed from the grid side of the proposed converter, and thereby that the number of components and conduction loss at its primary side are reduced. Its attractiveness is that this topology and the corresponding cyclic modulation accomplish equal loss distribution at the switches over two cycles of grid voltage, and thereby enables high output power transfer and high reliability. The full-bridge circuit with clamp capacitor naturally recovers the energy stored at the leakage inductor during both positive and negative half grid cycles. Finally, the efficiency improvement and balanced loss distribution are investigated, which shows the benefit of the proposed converter over the conventional converter.
AB - In this article, we propose a highly efficient active-clamped resonant ac/dc converter with self-loss balancing capability. The proposed ac/dc converter employs a full-bridge active clamp circuit at the grid side and a series resonant circuit with voltage-doubler at the load side. By incorporating the full-bridge active clamp circuit, an input full bridge rectifier can be removed from the grid side of the proposed converter, and thereby that the number of components and conduction loss at its primary side are reduced. Its attractiveness is that this topology and the corresponding cyclic modulation accomplish equal loss distribution at the switches over two cycles of grid voltage, and thereby enables high output power transfer and high reliability. The full-bridge circuit with clamp capacitor naturally recovers the energy stored at the leakage inductor during both positive and negative half grid cycles. Finally, the efficiency improvement and balanced loss distribution are investigated, which shows the benefit of the proposed converter over the conventional converter.
KW - Bridgeless structure
KW - cyclic modulation
KW - equal loss distribution
KW - full-bridge circuit with clamp capacitor
KW - high reliability
UR - http://www.scopus.com/inward/record.url?scp=85181554729&partnerID=8YFLogxK
U2 - 10.1109/TII.2023.3342448
DO - 10.1109/TII.2023.3342448
M3 - Article
AN - SCOPUS:85181554729
SN - 1551-3203
VL - 20
SP - 5899
EP - 5913
JO - IEEE Transactions on Industrial Informatics
JF - IEEE Transactions on Industrial Informatics
IS - 4
M1 - 10374437
ER -