[Oral Presentation]Effect of High-Speed Train on Vibration and Fatigue Life of Transmission Lines.

Effect of High-Speed Train on Vibration and Fatigue Life of Transmission Lines.

ID：229 Submission ID：1118 View Protection：ATTENDEE Updated Time：2020-10-28 21:20:15 Hits：324 Oral Presentation

Start Time：2020-11-04 09:15 （Asia/Shanghai）

Duration：15min

Session：[D] High Voltage and Insulation Technology » [D3] Session 24

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Abstract

There are frequent reports of cable rupture accidents on the transmission line crossing high-speed railways. A simulation method for dynamic response and fatigue life of transmission lines considering natural wind and train induced wind is presented and verified by field tests. Based on a case study, the displacement time history and fatigue damage of conductors under wind loads are analyzed, and the effects of different parameters are discussed. The results show that the fatigue damage caused by train induced wind can reach 127% of natural wind, and its influence on the fatigue life of transmission lines cannot be ignored. Raising height or avoiding the most unfavorable span length can effectively reduce the influence of train induced wind. The proposed method can be used for the structural design and safety assessment of transmission lines crossing the high-speed railway, and it can provide references to the design of damping devices.

Keywords

fatigue life;high speed train;train induced wind;transmission lines;wind induced vibration

Speaker

Ming Yin

Huazhong University of Science and Technology

Ming Yin was born in China. She received the B.Eng. degree in electrical engineering and automation from Shandong University, Shandong, China, in 2018. She is currently working toward the M.E. degree in electrical engineering at Huazhong University of Science and Technology, Wuhan, China. Her research interests include high-voltage and insulation technology.

Submission Author

Ming Yin Huazhong University of Science and Technology

Yizhong Guo Huazhong University of Science and Technology

Zhenghao He Huazhong University of Science and Technology； School of Electrical and Electronic Engineering； Wuhan 430074； China.；the State Key Laboratory of Advanced Electromagnetic Engineering and Technology