Tower pole icing disaster risk prediction method based on safety margin
A safety margin and tower technology, applied in the fields of instrumentation, calculation, electrical and digital data processing, etc., can solve the problems such as the inability to fully reflect the safety status of the middle tower structure, and reduce the probability of ice-covered tower collapse accidents. The effect of improving operational reliability
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[0028] The method of the invention combines finite element numerical simulation with data regression analysis, adopts the finite element method to construct the pole-tower coupling model in the overhead transmission line according to the size ratio of 1:1, and fully considers the main force factors of the line under various static conditions, and the overlay The force simulation of various operating conditions of the ice pole tower coupling model is carried out; on this basis, the concept of safety margin value is proposed, the regression analysis and data fitting are carried out on the force simulation results, and the safety margin curve of the pole tower is obtained. The margin curve obtains the real-time safety margin value of the tower, and judges the icing risk of the tower in real time based on the safety margin value. The flow chart of the inventive method is referring to figure 1 .
[0029] figure 2 It is a schematic diagram of the tower coupling model constructed ...
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