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Method for monitoring and analyzing insulation performance of overhead transmission insulator

An analysis method and technology for overhead transmission lines, applied in the field of monitoring and analysis of overhead transmission line insulators, can solve the problems that there is no reasonable and effective monitoring and analysis method for overhead transmission line insulators, and achieve fine management, small investment, and online monitoring full effect

Inactive Publication Date: 2020-12-25
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] To sum up, from a practical point of view, there has not been a reasonable and effective monitoring analysis of insulators on overhead transmission lines, especially in the online detection of insulators on UHV, EHV, and main grid structures. method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The on-line monitoring of insulators of overhead transmission lines in a certain industrial town is configured by using the present invention (a method for monitoring and analyzing insulators of overhead transmission lines), so as to realize the full-state, high-precision and fine-grained detection of each insulator of overhead transmission lines within the scope of this town . The township range is about 60km, and major heavy industrial manufacturers are distributed in the suburbs. The transmission line has a high level and high reliability requirements. All above 35kV realize full-state detection.

[0032] A method for monitoring and analyzing overhead transmission line insulators is realized through the following processes.

[0033] The insulator monitoring module transmits real-time, comprehensive and detailed mechanical data information of overhead transmission line insulators to the data processing and analysis module: optical fiber sensing units are reasonably dist...

Embodiment 2

[0038] A method for monitoring and analyzing overhead transmission line insulators as described in Example 1. The difference is that the line is located in a remote mountainous area, and there are few lines. One main device can meet the needs. Another point is that there is no power supply nearby. Create two new circuits from the nearest power source exclusively for power supply.

Embodiment 3

[0040] A method for monitoring and analyzing insulators of overhead transmission lines as described in Example 1, the difference is that the lines are located in urban areas, and there are few lines with high voltage levels, and one main device can meet the needs.

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PUM

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Abstract

The invention discloses an overhead transmission line insulator monitoring and analyzing method. An insulator monitoring module, an insulator performance display module, a power supply module, a communication module, a data processing and analyzing module and an intelligent early warning decision module are included. The insulator monitoring module comprises a distributed optical fiber sensing unit, a mechanical stress mathematical analysis unit and an electric field intensity conversion module. According to the invention, a high-precision optical fiber sensing technology is introduced into insulator monitoring, and the stress and temperature characteristics of the overhead transmission line insulator are accurately detected, so that the online monitoring is more comprehensive and accurate. According to the method, the latest optical fiber sensing technology is utilized, it is proposed for the first time that the accurate instantaneous stress value is obtained by detecting insulator deformation, the stress value is analyzed, and the operation state of each stressed material is accurately judged, and the method is based on accurate data information and can conduct refined management, accurate positioning and predictive development on the whole insulator.

Description

technical field [0001] The invention relates to a method for monitoring and analyzing overhead transmission line insulators, which belongs to the technical field of electric power industry. Background technique [0002] The requirements for the construction of a strong and smart grid are becoming increasingly urgent. How to accelerate the realization of a strong and smart grid is an important issue we are facing. At present, information technology, automation technology, and big data technology are highly developed, providing good technical conditions for the intelligentization of the power grid. Various scientific research departments of the power grid system are promoting the development of a strong smart grid in different ways. On the other hand, we must calmly see that although the intelligence of power grid operation and management has been continuously improved, accurate, comprehensive and real-time online monitoring of transmission lines has always been based on tradi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J13/00G01D21/02
CPCG01D21/02G01K11/32G01L1/242G01R31/1245H02J13/00001H02J13/00002Y02E60/00
Inventor 宁尚元金丽勇曹威海王增君杜立新
Owner STATE GRID CORP OF CHINA
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