TY - GEN
T1 - A Novel Protection Scheme for LCC-MMC Hybrid Multi-terminal HVDC Transmission Lines
AU - Zhou, Yi
AU - Cao, Junzheng
AU - Zhao, Jing
AU - Li, Yang
AU - Zhang, Chenhao
AU - Song, Guobing
N1 - Publisher Copyright:
© 2022 IEEE.
PY - 2022
Y1 - 2022
N2 - With the large-scale integration of renewable energy, power electronic equipment represented by converters is widely used in power systems. However, because of the fragility and complex fault characteristics of power electronic devices, traditional protection technologies are no longer suitable. It is urgent to propose a more reliable protection scheme to ensure the safe operation of the power system. In this paper, a novel protection scheme for LCC-MMC hybrid multi-terminal HVDC transmission lines is proposed, which is composed of four different protection principles corresponding to four fault stages, based on the fault information of wavefront, switching characteristic frequency of MMC, active injection, and differential current. The effectiveness of the proposed protection scheme is verified on PSCAD/EMTDC. Simulation results show that with the coordination of several protection methods, at least two types of protection methods can identify faults correctly most of the time after the fault occurs.
AB - With the large-scale integration of renewable energy, power electronic equipment represented by converters is widely used in power systems. However, because of the fragility and complex fault characteristics of power electronic devices, traditional protection technologies are no longer suitable. It is urgent to propose a more reliable protection scheme to ensure the safe operation of the power system. In this paper, a novel protection scheme for LCC-MMC hybrid multi-terminal HVDC transmission lines is proposed, which is composed of four different protection principles corresponding to four fault stages, based on the fault information of wavefront, switching characteristic frequency of MMC, active injection, and differential current. The effectiveness of the proposed protection scheme is verified on PSCAD/EMTDC. Simulation results show that with the coordination of several protection methods, at least two types of protection methods can identify faults correctly most of the time after the fault occurs.
KW - HVDC transmission line
KW - coordination
KW - modular multilevel converter
KW - protection scheme
UR - https://www.scopus.com/pages/publications/85153337073
U2 - 10.1109/SPIES55999.2022.10082629
DO - 10.1109/SPIES55999.2022.10082629
M3 - 会议稿件
AN - SCOPUS:85153337073
T3 - 2022 4th International Conference on Smart Power and Internet Energy Systems, SPIES 2022
SP - 638
EP - 642
BT - 2022 4th International Conference on Smart Power and Internet Energy Systems, SPIES 2022
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 4th International Conference on Smart Power and Internet Energy Systems, SPIES 2022
Y2 - 9 December 2022 through 12 December 2022
ER -
