TY - GEN
T1 - An Isolated Bipolar Modular Multilevel DC-DC Converter with Bidirectional Power Flow
AU - Qiao, Yang
AU - Zhang, Xiaotian
AU - Yang, Xu
AU - Duan, Yuqi
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2018/12/26
Y1 - 2018/12/26
N2 - This paper proposes a trapezoidal current working mode of modular multilevel DC-DC converter (MMDC) with bidirectional power flow capability, which is attractive for the interface requirement of future High Voltage Direct Current (HVDC) networks. Through particular modulation methods, it achieves a flexible transmitted power and inherent balance of sub-modular (SM) capacitor voltage. In addition, soft-switching and low operating current, which means low switching losses and conduction losses respectively, are guaranteed by its trapezoidal current waveform. The modulation method and operation principle of this converter are analyzed. An example of 12kV to 1kV, 100kW converter is designed. In addition, its pros and cons are analyzed through comparative study.
AB - This paper proposes a trapezoidal current working mode of modular multilevel DC-DC converter (MMDC) with bidirectional power flow capability, which is attractive for the interface requirement of future High Voltage Direct Current (HVDC) networks. Through particular modulation methods, it achieves a flexible transmitted power and inherent balance of sub-modular (SM) capacitor voltage. In addition, soft-switching and low operating current, which means low switching losses and conduction losses respectively, are guaranteed by its trapezoidal current waveform. The modulation method and operation principle of this converter are analyzed. An example of 12kV to 1kV, 100kW converter is designed. In addition, its pros and cons are analyzed through comparative study.
KW - HVDC
KW - MMDC
KW - bidirectional power flow
KW - interface
UR - https://www.scopus.com/pages/publications/85060999195
U2 - 10.1109/PEAC.2018.8590620
DO - 10.1109/PEAC.2018.8590620
M3 - 会议稿件
AN - SCOPUS:85060999195
T3 - Proceedings - 2018 IEEE International Power Electronics and Application Conference and Exposition, PEAC 2018
BT - Proceedings - 2018 IEEE International Power Electronics and Application Conference and Exposition, PEAC 2018
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2018 IEEE International Power Electronics and Application Conference and Exposition, PEAC 2018
Y2 - 4 November 2018 through 7 November 2018
ER -