Open AccessStudy on Transient Wind Field Model of Transmission Line Based on Multivariable Harmonic Superposition Method
Author(s) -
Mu Li,
Xiang Tao,
Yiping Wang,
Kun Chen
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1639/1/012021
Subject(s) - superposition principle , thunderstorm , transmission line , wind speed , meteorology , wind profile power law , deflection (physics) , wind direction , environmental science , engineering , physics , mathematics , electrical engineering , mathematical analysis , optics
The wind deflection angle is directly related to the electric gap and the construction cost of the transmission line, so the accuracy of the wind deflection calculation method and the reasonable value of the relevant parameters are very important for the safe operation and economic rationality of the transmission line. Because of not considering the effect of wind speed fluctuation and thunderstorm impact wind and other adverse weather conditions, the calculation of wind deviation is often unsafe. In this paper, the multi variable harmonic superposition method is used to establish the transient wind field model under strong wind and thunderstorm blast weather conditions, considering the temporal and spatial correlation characteristics of wind field. On this basis, the distribution model of fluctuating wind load acting on the transmission line is constructed, which provides the basis for the subsequent wind deflection calculation of transmission line.