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

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...

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

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