Insulator equivalent salt density optical fiber test method based on particle swarm support vector machine

Abstract

The invention discloses a high voltage insulator equivalent salt density optical fiber test method based on a particle swarm support vector machine. In the method, firstly luminous flux attenuation and relative humidity are tested to be transmitted to a supervisory computer in a manner of wireless communication; then the luminous flux attenuation is subject to normalization pretreatment; referringto a standard relation curve graph of dust ratio with the luminous flux attenuation and the relative humidity, corresponding dust ratio is searched; and the particle swarm support vector machine is used for establishing a nonlinearity regression model among an insulator equivalent salt density value, the luminous flux attenuation, the relative humidity, and the dust ratio to obtain the insulatorequivalent salt density value. The high voltage insulator equivalent salt density optical fiber test method based on the particle swarm support vector machine in the invention realizes on-line test ofinsulator salt density with high precision, is suitable for various voltage levels, avoids the defects of the traditional salt density measurement such as time consuming, effort consuming and poor measurement effect, and improves reliability of power supply system.

Description

technical field [0001] The invention belongs to the technical field of intelligent state detection of power systems, and relates to a method for detecting equivalent salt density of high-voltage insulators, in particular to an optical fiber detection method for equivalent salt density of insulators based on a particle swarm support vector machine. Background technique [0002] The rapid development of industrial and agricultural production, on the one hand, has higher and higher requirements for power demand and reliability, resulting in continuous increase in the voltage level of high-voltage power transmission and transformation systems; The surface of the insulator under these conditions will deposit pollution, and the pollution layer will reduce the external insulation capacity of the insulator after being damp, and often cause pollution flashover accidents, which seriously affect the reliability of the power supply system. According to statistics, the number of insulati...

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Problems solved by technology

[0017] The purpose of the present invention is to provide an insulator equivalent salt-dense optical fiber detection method based on particle swarm support vector machine, to solve the problems of low efficiency of existing detection methods and incapable of real-time online detection, so as to reduce the occurrence of pollution flashover accidents and improve the reliability of power supply system sex

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