GIS equipment mechanical state detection method, GIS equipment mechanical state detection device and GIS equipment

A technology of mechanical state and detection method, applied in the field of computer, can solve problems such as failure to reflect the opening and closing of circuit breakers

Pending Publication Date: 2021-02-02
ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID NINGXIA ELECTRIC POWER COMPANY +2
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the vibration signal is collected at the position of the bus barrel after being energized and subjected to the magnetic force, which can only accurately reflect whether there is a mechanical failure in the bus barrel when the GIS equipment is working, and cannot reflect whether the circuit breaker exists Opening and closing failure

Method used

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  • GIS equipment mechanical state detection method, GIS equipment mechanical state detection device and GIS equipment
  • GIS equipment mechanical state detection method, GIS equipment mechanical state detection device and GIS equipment
  • GIS equipment mechanical state detection method, GIS equipment mechanical state detection device and GIS equipment

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Embodiment Construction

[0054]The technical solutions and technical effects of the present invention will be further elaborated below in conjunction with the drawings of the present invention.

[0055]When the GIS equipment circuit breaker performs opening and closing actions, the action of the operating mechanism will cause the circuit breaker shell to produce obvious vibrations and radiate noise outward. The present invention sets vibration measurement points on the shell of the circuit breaker. The vibration signal obtained by the vibration measuring point is used to analyze the mechanical state of the circuit breaker and determine whether the GIS equipment has a circuit breaker opening and closing failure. Circuit breaker opening and closing faults usually include loosening of insulation rods, breakage of transmission components, jamming of the mechanism, and failure of disconnection. Such asfigure 1 As shown in the structural diagram, in the embodiment of the present invention, the GIS equipment includes...

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Abstract

The invention provides a GIS equipment mechanical state detection method, and belongs to the technical field of computers. The method comprises the following steps: acquiring a vibration signal generated when a circuit breaker of a GIS equipment body performs a switching-on / off action or a switching-on action; analyzing the vibration signal to obtain a time-frequency diagram of the vibration signal; processing the time-frequency graph to obtain a gradient matrix of the time-frequency graph; calculating cosine similarity between the gradient matrix and a standard gradient matrix; comparing thecosine similarity with a standard value to obtain a comparison result and a mechanical state of the circuit breaker corresponding to the comparison result. The invention further provides a GIS equipment mechanical state detection device and GIS equipment.

Description

Technical field[0001]The present invention relates to the field of computer technology, in particular to a method for detecting mechanical state of GIS equipment, a device for detecting mechanical state of GIS equipment and GIS equipment.Background technique[0002]With the continuous improvement of the voltage level of my country's power system, gas insulated metal enclosed switchgear (GasInsulated (Metal-enclosed) Switchgear, GIS), as one of the core equipment of the power system, has also rapidly increased in number and scope, mainly to control power The function of system operation status and protection of normal operation of power system.[0003]Among the types of GIS equipment failures, mechanical failures account for a relatively high proportion. The structure of GIS equipment includes bus barrel and switch. At present, the commonly used method for detecting mechanical faults of GIS equipment is to detect through vibration signals: when the GIS equipment is running, the conductiv...

Claims

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Application Information

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IPC IPC(8): G01M13/00G01R31/327G01H17/00
CPCG01H17/00G01M13/00G01R31/327
Inventor 吴旭涛汲盛昌马云龙马波韩秀英何宁辉周秀李秀广张庆平倪辉刘威峰谢正宁
Owner ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID NINGXIA ELECTRIC POWER COMPANY
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