Power system insulator monitoring and evaluating system based on big data

Abstract

The invention discloses a power system insulator monitoring and evaluating system based on big data. The power system insulator monitoring and evaluating system comprises a defect detection module, abearing force capacity simulation analysis module, an environmental parameter acquisition module, an additional bearing detection module, an elastic additional analysis module, a model evolution module, a crack correction module and a management evaluation module. According to the power system insulator monitoring and evaluating system based on big data of the invention, sudden change deformationcoefficients corresponding to temperature, wind speed and accumulated snow are analyzed through the temperature change and wind speed in the environment and the pressure of accumulated snow on an insulator; the management and evaluation module is used for predicting and analyzing the residual life evaluation duration of the insulator through the self bending moment of the insulator, the temperature, the wind speed and the sudden change deformation coefficient corresponding to the accumulated snow, and the variation of crack parameters of the insulator in two interval time periods; so that theresidual life evaluation duration of the insulator can be accurately utilized, the service life of the insulator can be fully utilized, the replacement frequency is reduced, the labor amount of personnel for replacing the insulator is reduced, and the continuous, stable and safe duration of a power system is ensured.

Description

technical field [0001] The invention belongs to the technical field of power system insulators, and relates to a monitoring and evaluation system for power system insulators based on big data. Background technique [0002] Insulators are the main power accessories in power systems. Insulators are special insulation controls that play an important role in power systems. Insulators are installed between conductors at different potentials or between conductors and grounding components that can withstand voltage and mechanical There are many types of insulators and different shapes. Different types of insulators vary greatly with their shapes, but they are all composed of two parts: insulating parts and connecting fittings. [0003] The main function of the insulator is to achieve electrical insulation and mechanical fixation, so the insulator meets the requirements of different electrical and mechanical properties, such as under the specified operating voltage, lightning overvo...

AI Technical Summary

Problems solved by technology

[0004] The existing insulators are detected by hand-held ultrasonic flaw detectors to obtain the crack depth and length of the insulators. However, due to the periodicity of manual detection, it is impossible to accurately judge the crack status of the insulators within two detection cycles. When the replacement requirements are met before the first inspection, it will cause large-scale power outages in busbars, substations or power plants, directly affecting the safety and stability of the entire power system. At the same time, the existing technology cannot judge based on the specific parameters in the environment where the insulators are located The influence of the parameters in the environment on the life of the insulator makes it impossible to judge the remaining service life of the insulator, making it impossible to replace the insulator in time, and there is a problem of poor detection accuracy. In addition, when the insulator does not meet the replacement conditions, the insulator must be replaced Or when the insulator reaches the replacement condition, the insulator cannot be replaced in time, which wastes the replacement frequency of personnel, which leads to the waste of the insulator that can be used continuously, and the replacement insulator cannot be damaged to the extent of replacement, and the insulator that does not meet the replacement condition Frequent replacement will affect the normal operation of the power system

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