Landslide area power transmission tower safety evaluation method suitable for multiple working conditions

A technology for safety evaluation and transmission towers, applied in data processing applications, instruments, complex mathematical operations, etc., can solve problems such as inability to take into account arbitrary working conditions, and achieve the effect of overcoming the influence of subjectivity on evaluation results

Pending Publication Date: 2021-12-31
CHINA THREE GORGES UNIV
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  • Application Information

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Problems solved by technology

[0003] In order to solve any working conditions that may occur during the operation process that cannot be taken into account only by relying on tests and simulations, the present invention proposes a method for evaluating the safety of power transmission towers in landslide areas applicable to multiple working conditions, so as to analyze power transmission towers in landslide areas running status of

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  • Landslide area power transmission tower safety evaluation method suitable for multiple working conditions
  • Landslide area power transmission tower safety evaluation method suitable for multiple working conditions
  • Landslide area power transmission tower safety evaluation method suitable for multiple working conditions

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Embodiment 1

[0059] Such as figure 1 As shown, the method for evaluating the safety of power transmission towers in the landslide area provided by the invention is applicable to multiple working conditions, and the specific implementation includes the following steps (1)~(4):

[0060] (1) According to the actual working conditions that affect the safe operation of the transmission tower in the landslide area, use the analytic hierarchy process to establish a hierarchical structure model for the safety evaluation of the transmission tower in the landslide area, such as figure 2 As shown, the target layer is the safety of the transmission tower in the landslide area; the criterion layer is the surface deformation index that affects the safety of the transmission tower. Direction deformation (ABX), AD leg deformation in X direction (ADX), A leg deformation in Z direction (AZ), AB leg deformation in Z direction (ABZ), AD leg deformation in Z direction (ADZ), A leg deformation in Y direction (...

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Abstract

The invention relates to a landslide area power transmission tower safety evaluation method suitable for multiple working conditions. The method comprises the following steps: establishing a hierarchical structure model for landslide area power transmission tower safety evaluation ; establishing a judgment matrix according to the importance relationship among the indexes of each level, and obtaining subjective weights corresponding to different working conditions; through a correlation-based index weight determination method, considering the comparison strength of samples and the conflict between indexes, carrying out standardization processing on the data, and determining objective weights between factors according to a hierarchical structure model; carrying out combined weighting on the subjective weight and the objective weight according to a minimum identification information principle to obtain a comprehensive weight; and using a fuzzy evaluation method to determine which safety state the running power transmission tower is in. Any possible working condition of the power transmission tower in the landslide area is represented, so that the operation state of the power transmission tower in the landslide area under the specific working condition is analyzed.

Description

technical field [0001] The invention belongs to the field of safety evaluation of transmission network towers, and relates to the safety evaluation of power transmission towers in landslide areas affected by surface deformation and wind load and wind direction angle under extreme working conditions of design wind speed, and specifically relates to a power transmission in landslide areas suitable for multiple working conditions Tower safety evaluation method. Background technique [0002] With the continuous expansion of the scale of my country's power grid, it is inevitable that new transmission lines will pass through landslide-prone areas such as mountains and hills. The surface deformation caused by landslides will greatly reduce the carrying capacity of transmission towers. Iron towers play the role of protecting and supporting overhead lines in the transmission network. As the voltage level continues to increase, the characteristics of towering towers and large tower he...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/06G06F17/16
CPCG06Q10/0635G06Q50/06G06F17/16
Inventor 王彦海刘晓亮
Owner CHINA THREE GORGES UNIV
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