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Analysis of internal defects in power cables based on temperature field simulation
- 1 Shandong Jiaotong University
* Author to whom correspondence should be addressed.
Abstract
This paper constructs a model of the internal cross-sectional temperature field of power cables based on the multiphysics coupling simulation software, Comsol, to conduct an in-depth analysis of internal defects in power cables. First, a temperature field coupling model for power cables was built, and the accuracy of the simulation model was verified through mesh and boundary condition analysis. Subsequently, the distribution patterns of the internal temperature field of power cables were investigated under normal operating conditions and typical fault conditions (eccentric defects, internal water tree defects). The simulation results reveal that the presence of faults affects the insulation capability of the cable’s insulation layer, causing an imbalance in internal heat conduction and thus impacting the temperature distribution within the power cable. Additionally, this paper compares the internal temperature field distribution of power cables under different conditions (changing coil current and heat transfer coefficient) during normal operation. The results indicate that the temperature rise of power cables is closely related to the current carrying capacity and the heat transfer coefficient. Through an in-depth study of the temperature field distribution in power cables, this research provides a more precise, efficient, and economical reference solution for fault detection and repair in power systems, thereby enhancing the stability and safety of power cables and promoting the sustainable development of power cable technology.
Keywords
power cable, temperature field, fault condition
[1]. Zhang, G., & Zhong, H. (2016). Analysis of the advantages and disadvantages of using cables or overhead lines in urban power lines. Mechanical & Electrical Engineering Technology, 45(11), 118-122.
[2]. Wang, H. (2022). Research on XLPE cable partial discharge pattern recognition based on SSDAE algorithm. Dalian University of Technology. https://doi.org/10.26991/d.cnki.gdllu.2022.002641
[3]. Jiang, Y. (2019). Research on cable partial discharge detection and localization system. Beijing Jiaotong University.
[4]. Li, R. (2020). Research on cable partial discharge detection method based on optical fiber sensing technology. North China Electric Power University (Beijing). https://doi.org/10.27140/d.cnki.ghbbu.2020.001178
[5]. Chen, Z., Song, Y., Peng, Y., et al. (2021). Real-time monitoring and localization system for cable leakage based on all-optical sensing technology. China Equipment Engineering(04), 175-177.
[6]. Huang, L., Liang, Y., Huang, H., et al. (2024). Rapid calculation method of power cable temperature field based on surrogate model and its application. Electric Power, 57(05), 178-187.
[7]. Jiang, Y., Fang, Y., Zhao, W., et al. (2022). Research on power cable defect detection method based on inverse temperature field problem. Advanced Technology of Electrical Engineering and Energy, 41(09), 81-88.
Cite this article
Li,Z. (2024). Analysis of internal defects in power cables based on temperature field simulation. Advances in Engineering Innovation,10,36-48.
Data availability
The datasets used and/or analyzed during the current study will be available from the authors upon reasonable request.
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Journal：Advances in Engineering Innovation
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