TY - GEN
T1 - Space Charge Distribution in Submarine Cable Factory Joint Insulation
AU - Shi, Xiaoning
AU - Li, Wenpeng
AU - Zhang, Meng
AU - Liu, Yang
AU - Chen, Xin
AU - Zhang, Chong
AU - Zhao, Wei
AU - Zhong, Lisheng
AU - Gao, Jinghui
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - This passage discusses the high voltage direct current (HVDC) cable employed in submarine power transmission and its weaknesses, specifically the submarine cable factory joint. The recovered process of insulation when manufacturing the joint involves reheating the cable bulk insulation near them, which can cause changes in the dielectric properties and crystalline morphology of cross-linked polyethylene (XLPE). This can result in accumulated space charge and distorted electric field at the interface between the cable bulk insulation and factory joint recovery insulation due to a mismatch of dielectric parameters. The paper discusses the use of both experimental and simulation research to observe the distribution of space charge in submarine cable factory joint insulation. The results show that homo-polarity space charge accumulates more significantly with increasing polarization voltage, and space charge accumulation decreases gradually with temperature rising. Factory joint recovery insulation shows more severe charge accumulation compared to cable bulk insulation, especially at 50°C and 70°C. The maximum amount of space charge accumulation occurs when approaching the interface between the two insulations as far as possible, resulting in severe uneven electric field.
AB - This passage discusses the high voltage direct current (HVDC) cable employed in submarine power transmission and its weaknesses, specifically the submarine cable factory joint. The recovered process of insulation when manufacturing the joint involves reheating the cable bulk insulation near them, which can cause changes in the dielectric properties and crystalline morphology of cross-linked polyethylene (XLPE). This can result in accumulated space charge and distorted electric field at the interface between the cable bulk insulation and factory joint recovery insulation due to a mismatch of dielectric parameters. The paper discusses the use of both experimental and simulation research to observe the distribution of space charge in submarine cable factory joint insulation. The results show that homo-polarity space charge accumulates more significantly with increasing polarization voltage, and space charge accumulation decreases gradually with temperature rising. Factory joint recovery insulation shows more severe charge accumulation compared to cable bulk insulation, especially at 50°C and 70°C. The maximum amount of space charge accumulation occurs when approaching the interface between the two insulations as far as possible, resulting in severe uneven electric field.
KW - COMSOL Multiphysics software
KW - PEA method
KW - XLPE insulating material
KW - space charge distribution
KW - submarine factory cable joint
UR - https://www.scopus.com/pages/publications/85162664182
U2 - 10.1109/ICEMPE57831.2023.10139663
DO - 10.1109/ICEMPE57831.2023.10139663
M3 - 会议稿件
AN - SCOPUS:85162664182
T3 - 2023 IEEE 4th International Conference on Electrical Materials and Power Equipment, ICEMPE 2023
BT - 2023 IEEE 4th International Conference on Electrical Materials and Power Equipment, ICEMPE 2023
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 4th IEEE International Conference on Electrical Materials and Power Equipment, ICEMPE 2023
Y2 - 7 May 2023 through 10 May 2023
ER -