Extra-high voltage GIL equipment on-site handover acceptance comprehensive test platform

A comprehensive test and ultra-high voltage technology, applied in the direction of measuring electricity, measuring devices, and measuring electrical variables, etc., can solve the problems of inability to fully simulate the state of the insulator when it leaves the factory, it is not comprehensive, and the accuracy of fault diagnosis is not high, so as to increase readability performance and operability, simplifying the process, and shortening the related construction period

Pending Publication Date: 2022-05-13
国网河南省电力公司超高压公司 +3
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This patent can be used to diagnose the defects of GIL post insulators through the analysis of the correlation of various characteristic parameters, but the defects of the insulators are artificially set during the test, which is inevitably not comprehensive and cannot completely simulate the state of the insulators when they leave the factory. Therefore, , the accuracy of fault diagnosis is not high

Method used

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  • Extra-high voltage GIL equipment on-site handover acceptance comprehensive test platform
  • Extra-high voltage GIL equipment on-site handover acceptance comprehensive test platform
  • Extra-high voltage GIL equipment on-site handover acceptance comprehensive test platform

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Embodiment 1

[0035] refer to Figure 1-Figure 2 , the UHV GIL equipment site handover and acceptance comprehensive test platform provided in this embodiment includes a sensor module 1 , a virtual instrument module 2 and a host computer 3 .

[0036]The sensor module 1 includes a built-in sensor 11 and an external sensor 12 . The built-in sensor 11 is installed at the gas intake of the GIL pipeline, which is a gas sensor and is mainly used to detect SF in the GIL pipeline. 6 The gas composition, temperature, humidity, pressure and other data of the insulating gas are used to obtain the gas composition, gas water content, gas tightness and other indicators of the GIL pipeline.

[0037] The external sensor 12 is installed on the outer wall of the GIL pipeline, including a vibration sensor, a noise sensor and a temperature sensor, and is used to detect data such as mechanical vibration signals and noise signals of the GIL pipeline, and the temperature of the shell.

[0038] The mechanical fai...

Embodiment 2

[0078] Compared with Embodiment 1, the comprehensive test platform for on-site handover and acceptance of UHV GIL equipment provided in this embodiment has the following improvements: the database 32 adopts Hadoop database.

[0079] The data acquired by the sensor module 1 of the present invention are all time-series data, and there will be more and more data as time goes on; when the present invention carries out the handover detection to the GIL equipment, the handover experiment to be carried out has a sophisticated experiment (partial discharge test) ), power frequency withstand voltage test, impulse voltage test, auxiliary circuit insulation test, main circuit resistance measurement, SF 6 Gas quality verification and air tightness inspection, electromagnetic field measurement, etc. These data types are numerous and huge in quantity, which can easily lead to errors in data access, and the capacity of traditional databases is small, which cannot meet the needs of the presen...

Embodiment 3

[0083] Compared with Embodiment 2, the UHV GIL equipment on-site handover and acceptance comprehensive test platform provided in this embodiment has the following improvements: the present invention also cleans the bad data of the GIL equipment acquired by the sensor module 1 .

[0084] Bad data is defined in GB / T 33590.2-2017 "Technical Specifications for Smart Grid Dispatch Control System Part 2: Terminology" as "measurement data will produce measurement errors during the process of collection, analog / digital conversion, and transmission, and the error standard The difference is σ. The measurement data with an error greater than ±3σ is bad data”.

[0085] For the analysis of bad data, small errors will also cause errors. Therefore, if bad data cannot be handled well, it will greatly affect the accuracy of diagnosis during the handover and acceptance of GIL equipment, and affect the efficiency of GIL equipment handover and the entire construction period.

[0086] Therefore, ...

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Abstract

The invention provides a comprehensive test platform for on-site handover acceptance of extra-high voltage GIL equipment, and belongs to the technical field of electric power operation and maintenance. Comprising a sensor module, a virtual instrument module and an upper computer, the sensor module comprises a built-in sensor and an external sensor, and the built-in sensor is installed at a gas taking opening of the GIL pipeline and used for detecting components, temperature, humidity and pressure of insulating gas in the GIL pipeline; the external sensor is mounted on the outer wall of the GIL pipeline and is used for acquiring a mechanical vibration signal, a noise signal and a shell temperature of the GIL pipeline; the upper computer is computer equipment, stores a database and runs a computer program; and the computer program is used for data processing, diagnosis model construction and fault diagnosis. And the virtual instrument module is connected with a system bus of the upper computer and is used for acquiring data acquired by the sensor module and transmitting the data to the upper computer. The method can be suitable for on-site handover acceptance of the GIL equipment, and mechanical faults of the GIL equipment can be diagnosed during handover acceptance.

Description

technical field [0001] The invention belongs to the technical field of electric power operation and maintenance, and in particular relates to a comprehensive test platform for on-site handover and acceptance of UHV GIL equipment. Background technique [0002] Gas-insulated metal-enclosed transmission line (GIL) is a kind of high-voltage and high-current power transmission equipment that adopts gas insulation, and the shell and conductor are coaxially arranged. It is especially used in UHV projects. Compared with traditional overhead lines or transmission cables, GIL has the advantages of not being affected by environmental factors such as harsh weather and special terrain, effectively utilizing space resources, reducing electromagnetic impact, increasing carrying capacity, low failure rate, and convenient maintenance. [0003] The failures of GIL equipment mainly include insulation breakdown (mostly due to the failure of three-pillar insulators or basin insulators), air leak...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00
CPCG01R31/00
Inventor 汤会增臧春艳杨朝锋彭勇张利郭凯曲欣郭果李亮霖巩持恒肖子航鲁永朱鹏飞王炎赵晨楠袁森王朝华马云瑞杜君莉
Owner 国网河南省电力公司超高压公司
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