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GIL equipment fault joint positioning and early warning method based on vibration and voiceprint characteristic quantity extraction

A technology of equipment failure and voiceprint features, applied in the field of electric power, can solve problems such as inability to solve economic problems, achieve the effect of good GIL fault early warning and positioning functions, cost saving, and less external interference

Pending Publication Date: 2022-03-04
NANYANG POWER SUPPLY COMPANY OF STATE GRID HENAN ELECTRIC POWER
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Problems solved by technology

But it cannot solve the problem of poor economy

Method used

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  • GIL equipment fault joint positioning and early warning method based on vibration and voiceprint characteristic quantity extraction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A GIL device fault combined with a vibration and sound feature amount, based on vibration spectrum and acoustic spectroscopy, extracting the vibration feature amount of GIL equipment and sound characteristics, establishing the relationship between vibration map and acoustic spectrum and The mapping relationship between GIL common faults, constructs a GIL device fault warning simulation model based on artificial intelligence algorithm, and improve the GIL device fault combined with GIL equipment extracted based on vibration and sound characteristics. In the case of periodic vibration, the vibration signal is monitored, and the acoustic array sensor captures the sound line information released when the AC pressure test, thereby performing the accurate positioning of the GIL fault.

[0026] Further, the use of effective noise suppression techniques, removing the vibration signal of the site and the background noise of the audio signal, forming a key technique for the accurate ...

Embodiment 2

[0035] A GIL device fault combined with the GIL device extracted based on vibration and sound pattern, which is different from the first embodiment: by theoretical analysis and simulation modeling, the electric field distribution of the electric field distribution of the insulation of GIL equipment. , Find out the law. The intrinsic vibration frequency (range) of the GIL structure and the feature amount of common sound sources are studied, and the vibration mechanism and sound source positioning of GIL failure are realized.

[0036] The present invention can be applied to the GIL device of each voltage level, which can perform early warning and positioning of GIL operational failures in time, ensuring the safety and stable operation of GIL equipment and the entire grid, which greatly enhances the efficiency of the shipment station inspection and improvement. The accuracy and effectiveness of device status detection, ensuring long-term security and stable operation of Qingyu DC str...

Embodiment 3

[0038] A GIL device fault combined with a vibration and sound feature amount, which is different from Example 1: Based on the vibration map and acoustic spectrum, extract the vibration feature amount and sound characteristic amount of GIL equipment, establish vibration. The correlation between the map and acoustic spectrum and the mapping relationship between the common fault of GIL, constructs a GIL device fault early warning simulation model based on artificial intelligence algorithm, and improve the GIL equipment fault combined with the vibration and sound feature amount.

[0039] It will greatly improve the efficiency of the shipment inspection efficiency, crack the insufficient scene of the site, promote the safety of the power grid, economic operation, which is conducive to the safety of national energy delivery. Helping the national security of the national strategic Qingyu DC project, enhance the efficiency of equipment operation, help to improve the social image of the gr...

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Abstract

The invention provides a GIL equipment fault joint positioning and early warning method based on vibration and voiceprint characteristic quantity extraction, and belongs to the technical field of electric power. The method comprises the following steps: extracting vibration characteristic quantity and voiceprint characteristic quantity of GIL equipment based on a vibration spectrum and a sound wave spectrum, establishing association between the vibration spectrum and the sound wave spectrum and a mapping relation between the vibration spectrum and the sound wave spectrum and common faults of the GIL, constructing a GIL equipment fault early warning simulation model based on an artificial intelligence algorithm, and perfecting a GIL equipment fault joint positioning technology based on vibration and voiceprint characteristic quantity extraction. Vibration signals of the GIL are monitored under the condition of periodic vibration, and voiceprint information released by the GIL in an alternating current voltage withstand test is captured by an acoustic array sensor, so that the GIL fault is accurately positioned. According to the method, the requirements of being simple, effective, economical, easy to operate, high in feasibility and the like are met, so that workers can observe positioning of possible faults of the GIL equipment at the first time, and timely maintenance and treatment are facilitated.

Description

Technical field [0001] The present invention relates to the field of electricity technology, in particular, to a GIL device fault combined with a GIL device based on vibration and sound characteristic amounts. Background technique [0002] In order to reduce the serious loss, accurate and reliable detection of GIL, the safety hazards in the operation after the GIL equipment failure has been the focus of high-voltage electrical equipment inspection work. This is required to carry out early warning technology of GIL equipment failure, and see the early signs of GIL failure and exclude. At the same time, it is also necessary to accurately position the GIL breakdown air chamber and breakdown point, otherwise it will result in the incidence of the fault point and the erroneous disassembly of the GIL device, and the extension of the site power outage is also seriously reduced. Therefore, GIL failures and positioning have always been the attention hotspots of operation and maintenance. ...

Claims

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Application Information

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IPC IPC(8): G01R31/12
CPCG01R31/1209G01R31/1227
Inventor 罗道军张朋飞龚正国周建军张醒狮杨楠曹锐
Owner NANYANG POWER SUPPLY COMPANY OF STATE GRID HENAN ELECTRIC POWER
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