Research on Anti-Vibration Design System for UHV Large Crossing Transmission Line

doi:10.11930/j.issn.1004-9649.2017.02.005.06

Abstract

Abstract: It is difficult for UHV large crossing conductors to resist aeolian vibration due to larger span and higher hanging point. At present, laboratory aeolian vibration simulation test is the only effective means to design anti-vibration schemes for UHV large crossing conductors. However, the test process is complicated, and real type conductors and hardwares must be used. An UHV large crossing anti-vibration design system is developed based on finite element method and energy balance principle. Modal analysis, spectrum analysis and transient analysis functions for bundled conductors aeolian vibration are provided, and the dynamic bending strain values at key points of bundled conductors are calculated. Optimized anti-vibration scheme can be recommended to aeolian vibration simulation test by comparison and analysis of several predesigned schemes. Simulation test period can be reduced and anti-vibration design efficiency can be improved with proposed method, which can better meet requirements of UHV power transmission project.

Key words: UHV, large crossing, aeolian vibration, anti-vibration scheme, design system

CLC Number:

TM752⁺.5

QI Yi, RUI Xiaoming, ZHU Kuanjun, WANG Jingchao. Research on Anti-Vibration Design System for UHV Large Crossing Transmission Line[J]. Electric Power, 2017, 50(2): 5-10.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.2017.02.005.06

https://www.electricpower.com.cn/EN/Y2017/V50/I2/5

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