Analysis and Prediction of Micro-meteorological Parameters for Power Transmission Lines in Micro-terrain Environment

doi:10.11930/j.issn.1004-9649.201907161

Electric Power ›› 2020, Vol. 53 ›› Issue (3): 76-83.DOI: 10.11930/j.issn.1004-9649.201907161

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Analysis and Prediction of Micro-meteorological Parameters for Power Transmission Lines in Micro-terrain Environment

LI Longji¹, XI Xiaoguang¹, LI Zhijian¹, WANG Xiaoguang¹, WEN Qingfeng¹, LI Qiran², ZHOU Kai³, LIU Yong², YAO Juntao⁴

1. State Grid Tianjin Electric Power Research Institute, Tianjin 300384, China;
2. School of Electrical and Information Engineering, Tianjin University, Tianjin 300072, China;
3. State Grid Beijing Electric Power Research Institute, Beijing 100075, China;
4. Aerospace College, Xiamen University, Xiamen 361102, China

Received:2019-07-20 Revised:2019-09-20 Published:2020-03-10
Supported by:
This work is supported by Science and Technology Project of State Grid Tianjin Electric Power Company (Wet Snow Flashover Prediction of Power Transmission Lines in Coastal Heavy Contamination area, No. KJ19-1-07), Science and Technology Project of SGCC (Research on Numerical Icing Prediction Technology of Power Grid in Micro-lopogrephical and Micro-meteorological Condition, No. 52020118000U) and National Natural Science Foundation of China (Adsorption and Growth Modeling of Water Droplets and the Propagating Mechanism of Induced Surface Discharge on Outdoor Insulator, No.51677128)

Abstract

Abstract: In order to investigate the weather conditions of the transmission lines in micro-terrain areas, a research is carried out on the formation mechanism of micro meteorology in mountainous micro-terrain environment by taking three transmission lines in North China Grid, which are located in typical micro-terrain areas and had tower failure accidents in history, as examples, and a regression prediction model is established between micro-terrain meteorological factors and macro atmosphere parameters with the multiple regression analysis method based on the micro-climate theory. The research results show that the method can quantitatively reveal the relationship between micro-meteorological parameters, and can be used to analyze and predict the micro-meteorological parameters for the transmission lines in micro-terrain environment. The research in this paper can provide a basis for real-time evaluation of electrical reliability of transmission lines and establishment of early warning system.

Key words: micro-terrain, power transmission lines, micro-meteorological parameters, multiple regression analysis, meteorological analysis and prediction

LI Longji, XI Xiaoguang, LI Zhijian, WANG Xiaoguang, WEN Qingfeng, LI Qiran, ZHOU Kai, LIU Yong, YAO Juntao. Analysis and Prediction of Micro-meteorological Parameters for Power Transmission Lines in Micro-terrain Environment[J]. Electric Power, 2020, 53(3): 76-83.

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Analysis and Prediction of Micro-meteorological Parameters for Power Transmission Lines in Micro-terrain Environment

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