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The Safety Evaluation Model of Transmission Line Considering Meteorological Factors

The safe operation of the transmission line is the key guarantee for the stable transmission of electric energy, and the operation state of the transmission line is extremely vulnerable to the influence of meteorological factors. In order to accurately assess the comprehensive risks faced by the transmission line system, a transmission line safety assessment model considering meteorological factors is proposed. Firstly, an evaluation index system that reflects the operation status of the transmission line is constructed according to the characteristics of the transmission line architecture. Subsequently, the index weight coefficient is calculated based on the idea of maximum variance and combined with principal component analysis and analytic hierarchy process. Secondly, a transmission line risk safety assessment and dynamic management model considering meteorological factors is established based on the matter-element extension theory to construct the comprehensive risk matter-element and safety rating of the transmission line. Finally, the operation risk of its transmission line is explored by taking a certain region as an example, and the analysis results confirm the scientificity and practicability of the transmission line safety assessment model.