GIS mechanical resonance spectrum analysis method based on sensitivity analysis of different resonance points
A technology of sensitivity analysis and mechanical resonance, which is applied in the field of GIS fault detection, can solve problems that affect the safety of equipment operation and cannot perform accurate analysis, and achieve the effect of helping maintenance and safe operation, avoiding roughness, and improving systemicity
Active Publication Date: 2021-07-13
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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Problems solved by technology
The front-line operation and maintenance personnel usually feel the mechanical vibration and noise of the GIS equipment roughly by touching and hearing, and cannot conduct accurate analysis. This is a loophole in the safe operation of the equipment and affects the operation safety of the equipment.
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[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0044] First, if figure 2 The hardware facilities for GIS mechanical resonance spectrum analysis are set up in the manner shown, including a microphone array composed of microphones with different resonance frequencies, a signal conditioning unit, a multi-channel synchronous data acquisition card and a terminal computer. The microphone array is assumed to be around the device and its It is connected with the acquisition card, and the acquisition card transmits the output to the computer for storing and processing the collected noise signal.
[0045] Secondly, the anal...
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The invention discloses a GIS mechanical resonance spectrum analysis method based on sensitivity analysis of different resonance points, and belongs to the technical field of GIS fault detection.The method comprises the method according to claims 1-7; According to the GIS mechanical resonance spectrum analysis method based on sensitivity analysis of different resonance points, a quality factor and sensitivity analysis method of the microphone is combined, and sound source characteristics are analyzed by using the generated resonance spectrum, so that a detection result is quantified, the defects of roughness and low precision of traditional methods such as hand touching and auditory smelling of operation and maintenance personnel are overcome, the scientificity of a test result can be improved, and maintenance and safe operation of GIS equipment are facilitated.
Description
technical field [0001] The invention belongs to the technical field of GIS fault detection, and in particular relates to a GIS mechanical resonance spectrum analysis method based on sensitivity analysis of different resonance points. Background technique [0002] With the rapid development of my country's social economy, the demand for electricity continues to increase, and the voltage level continues to increase. GIS (Gas-Insulated Switchgear, gas-insulated metal fully enclosed switchgear) With obvious advantages, this kind of equipment has been promoted and applied rapidly. GIS internal mechanical structure barrier. [0003] When the GIS equipment is performing mechanical movement, due to the internal defects of the equipment, vibrations other than normal working conditions will occur, and the GIS equipment adopts a fully enclosed structure with a complex structure. Once a fault occurs, it cannot be located in time, and it is difficult to make The correct treatment will b...
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Login to View More IPC IPC(8): G01R31/327
CPCG01R31/327
Inventor 张聪聪王刚王大鹏陈晨王银忠苗全堂高栋李萌单涛王永强
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)