TY - GEN
T1 - A Low-Frequency Power Decoupling Method Based on Differential Split-Capacitor CLLLC Converter
AU - Wang, Ziyin
AU - Li, Zhenchao
AU - Shu, Jia
AU - Zhang, Yan
AU - Liu, Jinjun
AU - Li, Xianting
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - Two-stage single-phase inverter system has an inherent low-frequency power problem. In this paper, a power decoupling method based on differential split-capacitor design is proposed for IPOS-CLLLC single-phase inverter system, which can transfer all second harmonics ripple power to the DC bus capacitor without additional power decoupling circuit. By accurately controlling the charging and discharging process of the capacitors, the proposed method not only significantly suppresses the second-order oscillation of bus voltage and input current, but also effectively reduces the bus capacitance requirement, providing feasibility for high power density design in power supplies. Theoretical analysis and simulation verification are provided in this paper.
AB - Two-stage single-phase inverter system has an inherent low-frequency power problem. In this paper, a power decoupling method based on differential split-capacitor design is proposed for IPOS-CLLLC single-phase inverter system, which can transfer all second harmonics ripple power to the DC bus capacitor without additional power decoupling circuit. By accurately controlling the charging and discharging process of the capacitors, the proposed method not only significantly suppresses the second-order oscillation of bus voltage and input current, but also effectively reduces the bus capacitance requirement, providing feasibility for high power density design in power supplies. Theoretical analysis and simulation verification are provided in this paper.
KW - CLLLC resonant converter
KW - power decoupling
KW - two-stage voltage source inverter system
UR - https://www.scopus.com/pages/publications/85187285996
U2 - 10.1109/PEAS58692.2023.10395860
DO - 10.1109/PEAS58692.2023.10395860
M3 - 会议稿件
AN - SCOPUS:85187285996
T3 - PEAS 2023 - 2023 IEEE 2nd International Power Electronics and Application Symposium, Conference Proceedings
SP - 639
EP - 644
BT - PEAS 2023 - 2023 IEEE 2nd International Power Electronics and Application Symposium, Conference Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2nd IEEE International Power Electronics and Application Symposium, PEAS 2023
Y2 - 10 November 2023 through 13 November 2023
ER -