TY - GEN
T1 - Comparison of Insulation Performance Between PP and XLPE at 110 kV High Voltage Cable Joints Based on Electro-Thermal-Stress Coupling Simulation
AU - Chen, Xinyu
AU - Wang, Xinkui
AU - Zhang, Baolei
AU - Bai, Xiaoye
AU - Cao, Kai
AU - Li, Runhua
AU - Cui, Xinglei
AU - Fang, Zhi
AU - Xu, Pengfei
AU - Ding, Yu
AU - Li, Deyan
N1 - Publisher Copyright:
© The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2024.
PY - 2024
Y1 - 2024
N2 - Currently, high-voltage cables with cross-linked polyethylene (XLPE) as the main insulation are widely used in the power industry. Nevertheless, polypropylene-based (PP) materials have a broad application prospect due to their advantages such as higher temperature stability and good recyclability, offering options as an alternative to XLPE cables for global electrical industry. In this paper, key material parameters such as relative dielectric constant, Young’s modulus, Poisson’s ratio and coefficient of thermal expansion of XLPE and PP materials at different temperatures were measured. The coupling simulation model of 110 kV high voltage cable joint was established to obtain the distributions of electric, thermal and stress fields when XLPE and PP were used as the main insulation of the joints, respectively. The results show that the intensity of electirc field at composite interface is lower for XLPE/SR (silicone rubber) due to its larger relative dielectric constant, leading to better insulation performance. Moreover, the thermal deformation of XLPE cable is smaller than that of PP, as its smaller heat capacity of constant pressure. As a result, the degree of electric field distortion is lower, bringing about better working stability at high temperature.
AB - Currently, high-voltage cables with cross-linked polyethylene (XLPE) as the main insulation are widely used in the power industry. Nevertheless, polypropylene-based (PP) materials have a broad application prospect due to their advantages such as higher temperature stability and good recyclability, offering options as an alternative to XLPE cables for global electrical industry. In this paper, key material parameters such as relative dielectric constant, Young’s modulus, Poisson’s ratio and coefficient of thermal expansion of XLPE and PP materials at different temperatures were measured. The coupling simulation model of 110 kV high voltage cable joint was established to obtain the distributions of electric, thermal and stress fields when XLPE and PP were used as the main insulation of the joints, respectively. The results show that the intensity of electirc field at composite interface is lower for XLPE/SR (silicone rubber) due to its larger relative dielectric constant, leading to better insulation performance. Moreover, the thermal deformation of XLPE cable is smaller than that of PP, as its smaller heat capacity of constant pressure. As a result, the degree of electric field distortion is lower, bringing about better working stability at high temperature.
KW - Electro-thermal-stress coupling simulation
KW - High voltage cable joint
KW - Insulation performance
UR - http://www.scopus.com/inward/record.url?scp=85201958961&partnerID=8YFLogxK
U2 - 10.1007/978-981-97-2245-7_43
DO - 10.1007/978-981-97-2245-7_43
M3 - 会议稿件
AN - SCOPUS:85201958961
SN - 9789819722440
T3 - Springer Proceedings in Physics
SP - 523
EP - 529
BT - Proceedings of the 5th International Symposium on Plasma and Energy Conversion - iSPEC 2023
A2 - Fang, Zhi
A2 - Mei, Danhua
A2 - Zhang, Cheng
A2 - Zhang, Shuai
PB - Springer Science and Business Media Deutschland GmbH
T2 - 5th International Symposium on Plasma and Energy Conversion, iSPEC 2023
Y2 - 27 October 2023 through 29 October 2023
ER -