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Conductor Temperature Monitoring of High-Voltage Cables Based on Electromagnetic-Thermal Coupling Temperature Analysis

Author

Listed:
  • Yuting Zhang

    (Key Laboratory of Advanced Transducers and Intelligent Control System, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, China)

  • Fuhao Yu

    (Key Laboratory of Advanced Transducers and Intelligent Control System, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, China)

  • Zhe Ma

    (Key Laboratory of Advanced Transducers and Intelligent Control System, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, China
    College of Physics and Optoelectronics, Taiyuan University of Technology, Taiyuan 030024, China)

  • Jian Li

    (Key Laboratory of Advanced Transducers and Intelligent Control System, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, China
    College of Physics and Optoelectronics, Taiyuan University of Technology, Taiyuan 030024, China)

  • Jiang Qian

    (R&D Department, State Grid Shanxi Electric Power Company, Yuncheng 032099, China)

  • Xiaojiao Liang

    (R&D Department, State Grid Shanxi Electric Power Company, Yuncheng 032099, China)

  • Jianzhong Zhang

    (Key Laboratory of Advanced Transducers and Intelligent Control System, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, China
    College of Physics and Optoelectronics, Taiyuan University of Technology, Taiyuan 030024, China)

  • Mingjiang Zhang

    (Key Laboratory of Advanced Transducers and Intelligent Control System, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, China
    College of Physics and Optoelectronics, Taiyuan University of Technology, Taiyuan 030024, China)

Abstract

As a key state parameter of high-voltage cables, conductor temperature is an essential determinant of the current carrying capacity of cables, but in practice, this is difficult to measure directly during the operation of high-voltage cables. In this paper, the electromagnetic-thermal coupling analysis model of a 110 kV high-voltage cable is established using the finite element analysis software COMSOL. By analyzing the temperature distribution law of high-voltage cables under different load currents and ambient temperatures, the relationship between the change in the high-voltage cable surface temperature and the conductor temperature is deduced, which allows the monitoring of the high-voltage cable conductor temperature. Taking the 110 kV cable of the Yanzhong line in Shanxi Province as an example and using the electromagnetic-thermal coupling temperature field analysis method, the conductor temperature of the high-voltage cable can be measured using the data obtained from the cable surface temperature, which is measured by the self-developed Raman Distributed Temperature Sensor (RDTS) system with a maximum measurement error of about 2 °C. The method is easy to use and can achieve the accurate measurement of the conductor temperature without damaging the cable body.

Suggested Citation

  • Yuting Zhang & Fuhao Yu & Zhe Ma & Jian Li & Jiang Qian & Xiaojiao Liang & Jianzhong Zhang & Mingjiang Zhang, 2022. "Conductor Temperature Monitoring of High-Voltage Cables Based on Electromagnetic-Thermal Coupling Temperature Analysis," Energies, MDPI, vol. 15(2), pages 1-14, January.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:2:p:525-:d:722896
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    References listed on IDEAS

    as
    1. Stanislaw Czapp & Seweryn Szultka & Adam Tomaszewski, 2020. "Design of Power Cable Lines Partially Exposed to Direct Solar Radiation—Special Aspects," Energies, MDPI, vol. 13(10), pages 1-16, May.
    2. Lan Xiong & Yonghui Chen & Yang Jiao & Jie Wang & Xiao Hu, 2019. "Study on the Effect of Cable Group Laying Mode on Temperature Field Distribution and Cable Ampacity," Energies, MDPI, vol. 12(17), pages 1-15, September.
    Full references (including those not matched with items on IDEAS)

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