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

A technology of support vector machine and equivalent salt density, which is applied in the field of value salt density optical fiber detection and value salt density detection, can solve the problems of low efficiency, real-time online detection, etc., and avoid economic loss and the harsh environment of live measurement , reduce pollution flashover accidents, save manpower and material resources

Inactive Publication Date: 2010-02-24
XIAN UNIV OF TECH
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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 ef

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

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[0075] Example

[0076] Step 1: Install the inspection system that has been fully tested in the laboratory on a 110KV high-voltage transmission line. The insulator is a suspension glass insulator LXP-160. The on-site detection device detects the luminous flux attenuation at five different time points Φ 1 And environmental relative humidity RH, as shown in Table 1.

[0077] Table 1 The luminous flux attenuation at five different time points Φ 1 And relative humidity RH

[0078]

[0079] Attenuate the luminous flux Φ 1 , The relative humidity RH is transmitted to the management computer through wireless communication;

[0080] Step 2: Manage the attenuation of the received light flux of the computer Φ 1 And relative humidity RH data information, attenuation of luminous flux Φ 1 Perform normalization pretreatment according to the following formula to obtain the luminous flux attenuation Φ after normalization pretreatment 2 :

[0081] Φ 2 = β i - β o β i ...

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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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Application Information

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IPC IPC(8): G01N21/59G06N1/00
Inventor 焦尚彬张青
Owner XIAN UNIV OF TECH
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