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A method and system for online processing of lightning arrester monitoring data

A technology of monitoring data and processing methods, which is applied in the field of online processing of lightning arrester monitoring data, can solve problems such as inaccurate calculation results, and achieve the effect of solving inaccurate calculation results and eliminating periodic changes

Active Publication Date: 2021-05-04
XUCHANG XJ SOFTWARE TECH +3
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The object of the present invention is to provide a method and system for online processing of lightning arrester monitoring data to solve the problem of inaccurate calculation results of existing lightning arrester monitoring data online processing methods

Method used

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  • A method and system for online processing of lightning arrester monitoring data
  • A method and system for online processing of lightning arrester monitoring data
  • A method and system for online processing of lightning arrester monitoring data

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Embodiment Construction

[0030]In order to make the objects, technical solutions and advantages of the present invention, the present invention is further detailed in connection with the accompanying drawings and examples.

[0031]The specific embodiment of the method provided by the present invention is:

[0032]Such asfigure 1 As shown, the current collecting unit and the voltage collecting unit simultaneously collect two percentages in a total of 512 sampling points. For two percent, every 16 sample points are completed, and 512 sample points can be obtained. 16 Calculation results. The full-week wave Fu Ye leaf transform, calculate the amplitude of the current and voltage, and then calculate the initial phase angle of the current and voltage to obtain the initial phase angle of the current.figure 2 As shown, 16 calculations can be obtained.

[0033]Corresponding each phase current signal obtained by the calculation and the initial phase angle of each correlation bus voltage signal, the primary phase angle α [k +...

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Abstract

The invention relates to a method and system for online processing of lightning arrester monitoring data. The initial phase angle is obtained by performing full-cycle Fourier transform on the signals collected by the current acquisition unit and the voltage acquisition unit, and the initial phase angle is calculated according to the change of the power frequency. Correction, and then use the least square method to fit the straight line to obtain the final initial phase angle and frequency of each phase current signal and each related bus voltage signal, eliminating the periodic change of the phase angle between current and voltage, and solving the existing The problem of poor interference and inaccurate results exists in the online monitoring data processing method of arresters.

Description

Technical field[0001]The present invention belongs to the field of arrester online monitoring technology, and specific relates to a lightning proofer monitoring data online processing method and system.Background technique[0002]The radiofer is an important electrical equipment protected from overvoltage hazard in the grid. The reliability of its operation will directly affect the safety of the power system. In recent years, the exchange of exchangeless oxide arresters in the operation of the substation has caused huge losses to the national economy due to the explosion accident caused by the irritability of the electric performance, bringing a huge loss to the national economy, bringing serious threats to the power grid safe operation. . Implementing online monitoring of the lightning arrester can effectively monitor the internal defects of the lightning arrester, early discovery and elimination of faults, avoiding the arrester explosion, and ensuring the safe operation of the power...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R19/25G01R25/00G01R27/26G01R23/16G01R23/02
CPCG01R19/2509G01R23/02G01R23/16G01R25/00G01R27/2694
Inventor 曾国辉梁武民兰五胜和红伟毛丽娜路光辉雍明超周水斌王伟杰王青山郭宏燕陈磊杨芳李超云亚文
Owner XUCHANG XJ SOFTWARE TECH
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