Galloping Performance of Transmission Line System Aeroelastic Model with Rime Through Wind-Tunnel Tests

Mingguan Zhao, Meng Li, Shenglong Li, Yuanhao Wan, Yang Hai and Chunguang Li ()
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Mingguan Zhao: State Grid Xinjiang Electric Power Co., Ltd., Electric Power Research Institute, Xinjiang Key Laboratory of Extreme Environment Operation and Detection Technology of Power Transmission & Transformation Equipment, Urumqi 830011, China
Meng Li: State Grid Xinjiang Electric Power Co., Ltd., Electric Power Research Institute, Xinjiang Key Laboratory of Extreme Environment Operation and Detection Technology of Power Transmission & Transformation Equipment, Urumqi 830011, China
Shenglong Li: School of Civil Engineering, Changsha University of Science & Technology, Changsha 410114, China
Yuanhao Wan: State Grid Xinjiang Electric Power Co., Ltd., Electric Power Research Institute, Xinjiang Key Laboratory of Extreme Environment Operation and Detection Technology of Power Transmission & Transformation Equipment, Urumqi 830011, China
Yang Hai: State Grid Xinjiang Electric Power Co., Ltd., Electric Power Research Institute, Xinjiang Key Laboratory of Extreme Environment Operation and Detection Technology of Power Transmission & Transformation Equipment, Urumqi 830011, China
Chunguang Li: School of Civil Engineering, Changsha University of Science & Technology, Changsha 410114, China

Energies, 2025, vol. 18, issue 5, 1-18

Abstract: This study presents an experimental investigation for the galloping performance of the transmission line system with rime under wind excitation. A full aeroelastic model wind-tunnel test is conducted to investigate the dynamic response of a two-bundled transmission line system with rime under different conditions. The time histories of the displacement of the conductor and the acceleration of the tower are measured in detail to analyze the characteristic of the wind-induced response. A comprehensive parametric experiment is performed to explore the effects of wind speed, wind direction, the number of conductor spans and the coupling between the conductor and the tower on the galloping performance of the transmission line system with rime. The results showed that the wind speed, wind direction and the number of conductor spans have significant influence on the galloping performance of conductor. The zero-degree wind direction is the most dangerous direction for the conductor. The multi-span conductor has different galloping initiation wind speed and vibration characteristics compared to the single-span conductor. The coupling effect between the conductor and the tower has trivial influence on the response of tower. This study uses 3D-printing models to simulate the aerodynamic shape of ice-covered wires with different thicknesses for wind-tunnel tests and obtains the influence of a series of parameters on the galloping vibration of transmission tower line systems.

Keywords: multi-span bundled transmission line system; aeroelastic model wind-tunnel test; galloping vibration; wind-induced response (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2025
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