TY - GEN
T1 - Pre-charge strategy of modular multilevel converters with DC fault blocking capability based on multi-capacitor submodules
AU - Ren, Maoxin
AU - Huang, Lang
AU - Chen, Xiliang
AU - Yang, Xu
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2017/12/15
Y1 - 2017/12/15
N2 - Modular multilevel converter (MMC) is a promising topology of Voltage Source Converter based High voltage Direct Current (VSC-HVDC) system with many outstanding advantages such as low switching frequency, low voltage distortion and harmonics. Pre-charge process is one of the core issues of MMC based system, especially for the MMC with DC fault blocking capability. In this paper, considering a novel multi-capacitor submodule (SM) based MMC system with DC fault blocking capability, two different pre-charge strategies from AC side are proposed without any auxiliary power sources. Based on the developed pre-charge method, all the capacitor voltages could be well balanced and charged to the reference value. The verification of the proposed strategy was implemented in Matlab/Simulink system.
AB - Modular multilevel converter (MMC) is a promising topology of Voltage Source Converter based High voltage Direct Current (VSC-HVDC) system with many outstanding advantages such as low switching frequency, low voltage distortion and harmonics. Pre-charge process is one of the core issues of MMC based system, especially for the MMC with DC fault blocking capability. In this paper, considering a novel multi-capacitor submodule (SM) based MMC system with DC fault blocking capability, two different pre-charge strategies from AC side are proposed without any auxiliary power sources. Based on the developed pre-charge method, all the capacitor voltages could be well balanced and charged to the reference value. The verification of the proposed strategy was implemented in Matlab/Simulink system.
KW - Capacitor voltage balancing
KW - DC fault blocking
KW - Modular multilevel converter
KW - Pre-charge process
UR - https://www.scopus.com/pages/publications/85046650556
U2 - 10.1109/IECON.2017.8216782
DO - 10.1109/IECON.2017.8216782
M3 - 会议稿件
AN - SCOPUS:85046650556
T3 - Proceedings IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society
SP - 4544
EP - 4550
BT - Proceedings IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 43rd Annual Conference of the IEEE Industrial Electronics Society, IECON 2017
Y2 - 29 October 2017 through 1 November 2017
ER -