TY - GEN
T1 - Fault line selection method of DC distribution network based on transient current fault component
AU - Shuping, G. A.O.
AU - Bicong, Duan
AU - Guobing, Song
AU - Mingxing, Shao
N1 - Publisher Copyright:
© 2020 IEEE.
PY - 2020/9
Y1 - 2020/9
N2 - When a unipolar ground fault occurs in a medium-voltage flexible DC distribution network based on a two-level converter (voltage sourced converter, VSC)., the fault current will rise rapidly, and it is necessary to quickly find out the line where the fault occurs. In response to this problem, the unipolar ground fault at the VSC terminal is analyzed, and the variation characteristics of the transient fault current are analyzed and calculated. According to the difference of the transient fault current information of each line, the fault line selection method can quickly and reliably identify the fault within 3ms, and is particularly suitable for the radial flexible DC distribution network. Finally, a medium voltage flexible DC distribution network model was built in PSCAD/EMTDC, and MATLAB was used to verify the protection line selection algorithm. The simulation results show that the proposed line selection method can accurately achieve unipolar grounding of the flexible DC distribution network Fault line selection.
AB - When a unipolar ground fault occurs in a medium-voltage flexible DC distribution network based on a two-level converter (voltage sourced converter, VSC)., the fault current will rise rapidly, and it is necessary to quickly find out the line where the fault occurs. In response to this problem, the unipolar ground fault at the VSC terminal is analyzed, and the variation characteristics of the transient fault current are analyzed and calculated. According to the difference of the transient fault current information of each line, the fault line selection method can quickly and reliably identify the fault within 3ms, and is particularly suitable for the radial flexible DC distribution network. Finally, a medium voltage flexible DC distribution network model was built in PSCAD/EMTDC, and MATLAB was used to verify the protection line selection algorithm. The simulation results show that the proposed line selection method can accurately achieve unipolar grounding of the flexible DC distribution network Fault line selection.
KW - DC distribution network
KW - DC unipolar ground
KW - Fault line selection
UR - https://www.scopus.com/pages/publications/85102580995
U2 - 10.1109/IFEEA51475.2020.00097
DO - 10.1109/IFEEA51475.2020.00097
M3 - 会议稿件
AN - SCOPUS:85102580995
T3 - Proceedings - 2020 7th International Forum on Electrical Engineering and Automation, IFEEA 2020
SP - 433
EP - 437
BT - Proceedings - 2020 7th International Forum on Electrical Engineering and Automation, IFEEA 2020
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 7th International Forum on Electrical Engineering and Automation, IFEEA 2020
Y2 - 25 September 2020 through 27 September 2020
ER -