TY - GEN
T1 - Influence of capacitive parameters on the overvoltage characteristics of three-core submarine cable
AU - Wang, Wei Wang
AU - Wang, Zhao Hui
AU - Bu, Wen
AU - Yan, Xilin
AU - Guo, Zhi Qiang
AU - Wang, Xin
N1 - Publisher Copyright:
© 2020 IEEE.
PY - 2020/9/6
Y1 - 2020/9/6
N2 - Over-voltage in submarine cable plays an important role in the cable failure and the collapse of the connected power system. Previous studies focused on the effects of circuit parameters of power transmission line on over-voltage characterisitics. However, in the case of long distance submarine cable, the effects of cable parameters, especially for capacitive parameters can not be ignored. In this paper, the influence of capacitive parameters on the over-voltage characteristics of a 35 kV three-core submarine cable is studied. A simulation model is constructed by PSCAD/EMTDC software to calculate the transient over-voltage and over-current characteristics under the fault conditions. Particularly, the relative permittivity of the insulation layer and the reactive compensation are carried out. The results show that when the line operates with no load, the terminal voltage rise and reactive power increase with the increase of the relative permittivity of the insulation material. The single-phase grounding fault gives rise to a 1.5 times overvoltage amplitude and an overcurrent of 860 A. In addition, 1100V over-voltage will be induced on the metal sheath of the submarine cable. With an increase of relative permittivity, the overvoltage value caused by the single-phase grounding increases.
AB - Over-voltage in submarine cable plays an important role in the cable failure and the collapse of the connected power system. Previous studies focused on the effects of circuit parameters of power transmission line on over-voltage characterisitics. However, in the case of long distance submarine cable, the effects of cable parameters, especially for capacitive parameters can not be ignored. In this paper, the influence of capacitive parameters on the over-voltage characteristics of a 35 kV three-core submarine cable is studied. A simulation model is constructed by PSCAD/EMTDC software to calculate the transient over-voltage and over-current characteristics under the fault conditions. Particularly, the relative permittivity of the insulation layer and the reactive compensation are carried out. The results show that when the line operates with no load, the terminal voltage rise and reactive power increase with the increase of the relative permittivity of the insulation material. The single-phase grounding fault gives rise to a 1.5 times overvoltage amplitude and an overcurrent of 860 A. In addition, 1100V over-voltage will be induced on the metal sheath of the submarine cable. With an increase of relative permittivity, the overvoltage value caused by the single-phase grounding increases.
KW - no-load capacitance effect
KW - over-voltage
KW - relative permittivity
KW - single-phase grounding
UR - https://www.scopus.com/pages/publications/85099347234
U2 - 10.1109/ICHVE49031.2020.9279763
DO - 10.1109/ICHVE49031.2020.9279763
M3 - 会议稿件
AN - SCOPUS:85099347234
T3 - 7th IEEE International Conference on High Voltage Engineering and Application, ICHVE 2020 - Proceedings
BT - 7th IEEE International Conference on High Voltage Engineering and Application, ICHVE 2020 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 7th IEEE International Conference on High Voltage Engineering and Application, ICHVE 2020
Y2 - 6 September 2020 through 10 September 2020
ER -