TY - GEN
T1 - Triple bridge DC/DC converter and control method for wide port voltage range applications
AU - Zhu, Hongyu
AU - Zhang, Yi
AU - Zhang, Donglai
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/6
Y1 - 2019/6
N2 - Triple Bridge DC/DC Converter (TBC) with three bidirectional ports is a simplified cascaded Four-switch Buck-Boost converter, it has three active power switches and three synchronous rectifiers (SRs). TBC has several advantages such as high integration, steady output voltage and lower voltage stress across the power devices. TBC can operate with wide input/output port voltage range and bi-directional energy flow through any two ports. The three active power switches can be controlled independently, thus three freedoms, i.e. the duty cycles of the switches, are available to regulate the port voltage, thus leading to the proposed modulation and control strategies for wide port voltage range and high efficiency applications. With the proposed control method, TBC works in Boost mode in lower voltage region and Buck mode in higher voltage region, respectively. Only one of the active power switch and its corresponding SRs, is switched with high frequency, the other one is fully on or off, so the total switching loss is reduced. One more region is introduced when the port voltage is located around the output voltage, TBC will work in Buck-Boost mode with all the switches operating with lower frequency. Finally, experimental verifications are given to illustrate the feasibility and effectiveness of the proposed topology and control method.
AB - Triple Bridge DC/DC Converter (TBC) with three bidirectional ports is a simplified cascaded Four-switch Buck-Boost converter, it has three active power switches and three synchronous rectifiers (SRs). TBC has several advantages such as high integration, steady output voltage and lower voltage stress across the power devices. TBC can operate with wide input/output port voltage range and bi-directional energy flow through any two ports. The three active power switches can be controlled independently, thus three freedoms, i.e. the duty cycles of the switches, are available to regulate the port voltage, thus leading to the proposed modulation and control strategies for wide port voltage range and high efficiency applications. With the proposed control method, TBC works in Boost mode in lower voltage region and Buck mode in higher voltage region, respectively. Only one of the active power switch and its corresponding SRs, is switched with high frequency, the other one is fully on or off, so the total switching loss is reduced. One more region is introduced when the port voltage is located around the output voltage, TBC will work in Buck-Boost mode with all the switches operating with lower frequency. Finally, experimental verifications are given to illustrate the feasibility and effectiveness of the proposed topology and control method.
KW - Buck-Boost
KW - DC/DC conversion
KW - Multi-port converter
KW - Synchronous rectification
UR - https://www.scopus.com/pages/publications/85073076166
U2 - 10.1109/ICIEA.2019.8833653
DO - 10.1109/ICIEA.2019.8833653
M3 - 会议稿件
AN - SCOPUS:85073076166
T3 - Proceedings of the 14th IEEE Conference on Industrial Electronics and Applications, ICIEA 2019
SP - 2059
EP - 2064
BT - Proceedings of the 14th IEEE Conference on Industrial Electronics and Applications, ICIEA 2019
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 14th IEEE Conference on Industrial Electronics and Applications, ICIEA 2019
Y2 - 19 June 2019 through 21 June 2019
ER -