Overhead transmission line clamp heating early warning and dynamic capacity increasing edge calculation method

Abstract

The invention discloses an overhead transmission line clamp heating early warning and dynamic capacity increasing edge calculation method, and belongs to the technical field of power distribution network communication. The method comprises the following steps: 1, acquiring heating information of a power transmission line clamp based on ultrahigh frequency sensing; 2, calculating a heating edge of the wire clamp based on layered Bayesian processing; 3, carrying out multi-dimensional sensor information collection and heating calculation of the overhead transmission line; and 4, carrying out dynamic capacity increase edge calculation based on the echo state network model. A hierarchical Bayesian edge calculation algorithm is introduced into the heating early warning of the wire clamp, various resources can be coordinated and harmonized, the edge side and the center side are associated, and the information in the heating early warning of the wire clamp can be calculated and processed at the edge; by means of the power transmission line dynamic capacity increasing edge calculation method, multiple factors are dynamically monitored in real time, dynamic capacity increasing is carried out, the actual maximum allowable current-carrying capacity of the wire is calculated, the edge calculation complexity can be simplified, and therefore guarantee is provided for safe operation of the power transmission line.

Description

technical field [0001] The invention relates to the technical field of distribution network communication, in particular to a method for early warning of heat generation and dynamic capacity-increasing edge calculation for overhead transmission line clamps. Background technique [0002] In overhead lines, as an important component of fittings, line clamps not only bear the tension of the wires, but also bear the load current of the line. Its mechanical and electrical properties are always tested by the external environment and high-intensity electromagnetic fields. Its operating status is related to overhead lines. The safe and reliable operation of some transmission lines has been put into operation for a long time, and the problem of overheating of the overhead line clips occurs frequently, which greatly restricts the current carrying capacity of the line. When the heat is severe, it will also cause deformation or even fusing of the clips. Affect the quality of power trans...

AI Technical Summary

Problems solved by technology

[0005] 1. Due to the complex principle of radiation temperature measurement and the complex structure of the thermometer, the infrared thermometer is expensive and the operation process is complicated;

[0006] 2. Ultrasonic thermometers have low measurement accuracy and insufficient reliability, and there are also shortcomings such as low degree of automation, difficulty in online monitoring, and low overall temperature measurement level;

[0007] 3. At present, the dynamic capacity increase monitoring device on a single line cannot consider the comprehensive situation of the unified power grid, and cannot correctly judge whether it can increase capacity.

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