Abstract
In recent years, icing on the ground wire of ultra-high voltage transmission lines has become a major problem threatening the safe and stable operation of transmission lines. In order to effectively solve the problem of ground wire icing on ultra-high voltage transmission lines, this paper proposes a ground wire ice-melting system for ±800 kV ultra-high voltage DC transmission lines during live operation. Firstly, a twelve-pulse valve group and rectifier transformer are selected as the ice-melting device based on technical and economic considerations, and then the ground wire is insulated and transformed to form a ice-melting circuit with single-point grounding. The parameters such as ice-melting current, ice-melting capacity, and ice-melting time are calculated and verified. Secondly, the temperature rise test under ice-melting current is conducted in the laboratory environment to determine the temperature characteristics and safety of the cable, and finally the parameters of the ice-melting device are determined. The ice-melting system is constructed in a selected section of about 14.45 km on a certain ±800 kV transmission line, and on-site verification of live ice-melting is conducted under rainy, snowy and icy weather. According to the measurement results of the on-site cable temperature monitoring device, the ice-melting system successfully achieved continuous and adjustable ice-melting current and accurate control of cable temperature rise, which is consistent with the calculated results and achieved the expected goals. The results of this paper can provide reference for the live ice-melting of ground wire/cable of ultra-high voltage DC transmission lines.
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References
Yang G, Jiang X, Liao Y, Hu J, Zhang Z (2023) Dynamic simulation study on single conductor torsion-induced icing of transmission lines. Proc CSEE: 1–11[2023–03–30]. https://doi.org/10.19595/j.cnki.1000-6753.tces.230244. (In Chinese)
Wu H, Han X, Jiang X, Guo S (2023) Analysis of anti-icing properties of expanded-diameter conductor based on droplet impingement freezing efficiency. Proc CSEE, 1–9 [2023–03–30]. https://doi.org/10.19595/j.cnki.1000-6753.tces.220350 (In Chinese)
Zhao Q, Liu Z, Yu P, Chen L, Guan F (2022) Review of transmission line icing and anti-icing technologies. In: Lecture notes in electrical engineering, vol 890. Springer, Singapore. https://doi.org/10.1007/978-981-19-1870-4_129
Bagi T (2020) Analytical and experimental investigation of ice melting in power line ground wires. Periodica Polytechn Mech Eng
Jiang X, Meng Z, Zhang Z, Hu J, Lei Y (2016) DC ice-melting and temperature variation of optical fibre for ice-covered overhead ground wire. IET Gener Trans Distrib 10(2)
Xu F, Li D, Gao P, Zang W, Duan Z, Ou J (2023) Numerical simulation of two-dimensional transmission line icing and analysis of factors that influence icing. J Fluids Struct 118
Shang H, Huang Z (2019) OPGW cable icing status monitoring based on BOTDR. AIP Conf Proc 2073(1)
Wang M, Wang L, Wu Y, Wang Z, Fang H, Dong J (2022) Analysis and research on icing of OPGW optical cable. In: 2022 International conference on bigdata blockchain and economy management (ICBBEM 2022)
Chen L, Li C, Zhou Q, Wang C (2022) A new rectifier bridge series-parallel switching DC ice-melting device. Electr Power Eng Technol 41(06):230–238
Liao Y, Yang Y, Zhang H, Cheng S (2021) Parameter calculation and harmonic suppression study of 500kV HVDC ice-melting device. Electr Eng 03:130–132. https://doi.org/10.19768/j.cnki.dgjs.2021.03.043.(InChinese)
GB 50545-2010, Design code for overhead transmission lines of 110 kV–750 kV (In Chinese)
DL/T 5511-2016, Technical specification for design of DC ice-melting system (In Chinese)
Acknowledgements
Sincerely gratitude for the project supported by State Grid Corporation of China Scientific and Technological Project “Research on Key Technologies of On-Site Rapid Detection and Performance Improvement of New Grounding Materials” (5500-202232127A-1-1-ZN).
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Li, W., Li, X., Han, Y., Chen, S., Zhang, L., Chen, X. (2024). Research on the Energized Ice-Melting for the Ground Wire Optical Cable of ±800 kV Ultra-High Voltage Direct Current Transmission Line. In: Dong, X., Cai, L. (eds) The Proceedings of 2023 4th International Symposium on Insulation and Discharge Computation for Power Equipment (IDCOMPU2023). IDCOMPU 2023. Lecture Notes in Electrical Engineering, vol 1100. Springer, Singapore. https://doi.org/10.1007/978-981-99-7393-4_62
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DOI: https://doi.org/10.1007/978-981-99-7393-4_62
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