Power transmission line windage yaw flashover risk evaluation method based on matter element extension model

The invention belongs to the technical field of power transmission line windage yaw evaluation, and particularly relates to a power transmission line windage yaw flashover risk evaluation method based on a matter-element extension model, and the method comprises the following steps: analyzing influence factors of a power transmission line windage yaw flashover risk, and selecting evaluation indexes; calculating a weight value of the selected windage yaw flashover risk evaluation index by adopting an analytic hierarchy process-entropy weight method; correcting the data of the evaluation indexes in combination with the microtopographic data; constructing a windage yaw flashover risk assessment model based on a matter-element extension model for risk assessment; and judging the early warning level. According to the evaluation method, the risk condition of the tower unit can be comprehensively evaluated by combining qualitative analysis and quantitative analysis, and the risk evaluation result is objective and ac