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An ultra/extra-high voltage GIS switch equipment operation state evaluation method, system and equipment

A technology of operating status and switching equipment, which is applied in complex mathematical operations, instruments, calculations, etc., and can solve problems such as complex equipment status evaluation

Active Publication Date: 2021-06-15
ELECTRIC POWER RES INST OF STATE GRID ANHUI ELECTRIC POWER +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the complex problem of state evaluation of existing GIS switchgear equipment, the purpose of the present invention is to provide a method, system and equipment for evaluating the operating state of EHV / UHV GIS switchgear

Method used

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  • An ultra/extra-high voltage GIS switch equipment operation state evaluation method, system and equipment
  • An ultra/extra-high voltage GIS switch equipment operation state evaluation method, system and equipment
  • An ultra/extra-high voltage GIS switch equipment operation state evaluation method, system and equipment

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Embodiment Construction

[0061] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0062] Such as Figure 1 to Figure 2 As shown, an EHV / UHV GIS switchgear operating state evaluation method extracts characteristic parameters from partial discharge signals, vibration signals, coil current signals and infrared spectra, and applies hierarchical membership value matrix and weight coefficient matrix to fuzzy Calculate and finally evaluate the operating status of the EHV / UHV GIS switchgear.

[0063] use Figure 1 to Figure 2 The calculation steps shown to realize the EHV / UHV GIS switchgear operating state evaluation method include the following steps:

[0064] S1. Collect the partial discharge signal, vibration signal, and coil current signal of the front-end sensor and transmit them to the host computer status evaluation software system, and denoise the collected signal. The steps are as follows:

[0065] (1) Express the sign...

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Abstract

The invention discloses an ultra / extra-high voltage GIS switch equipment operation state evaluation method, system and equipment, which are used for ultra / extra-high voltage GIS switch equipment and comprise multi-sensor data characteristic quantity extraction, membership function construction, weight coefficient evaluation, layer fuzzy operation and state evaluation. Characteristic parameter extraction is carried out on a partial discharge signal, a vibration signal, a coil current signal and an infrared spectrum, a normal cloud membership function is constructed, and a membership value of an evaluation index to an operation state is calculated. Comprehensive weight coefficients are further calculated in a layered mode, fuzzy operation is carried out through a layered membership value matrix and a weight coefficient matrix, and finally the operation state of the ultra / extra-high voltage GIS switch equipment is obtained through evaluation. According to the invention, online monitoring and comprehensive evaluation of the operation state of the ultra / extra-high voltage GIS switch equipment can be realized, and a theoretical basis and practical support are provided for operation and maintenance of the switch equipment.

Description

technical field [0001] The invention belongs to the field of on-line monitoring and state evaluation of switchgear, and in particular relates to a method, system and equipment for evaluating the operating state of an ultra / ultra-high voltage GIS switchgear. Background technique [0002] In recent years, due to the large power capacity of the EHV / UHV power grid, the short-circuit capacity of the power grid is very large, and the assessment of the breaking capacity of the switchgear is very strict. EHV / UHV switchgear is an important core equipment for the control and protection of EHV / UHV power grids. When a short-circuit fault occurs in the power grid, it can smoothly remove the short-circuit fault and ensure the safe and stable operation of the system. Therefore, it is necessary to comprehensively evaluate the operating status of EHV / UHV switchgear to ensure that the switchgear operates in a safe and reliable state, to ensure its breaking performance, and to reduce the proba...

Claims

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Application Information

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IPC IPC(8): G06K9/00G06K9/34G06F17/16G06F17/18
CPCG06F17/16G06F17/18G06V10/267G06F2218/08
Inventor 杨为朱太云闫静赵恒阳张国宝蔡梦怡胡迪吴正阳陈忠赵常威钱宇骋
Owner ELECTRIC POWER RES INST OF STATE GRID ANHUI ELECTRIC POWER
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