Optical fiber composite cable expert diagnosis system based on multiple parameters

Abstract

The invention belongs to the technical field of evaluation and diagnosis on coal mine safety production and a power device operation state and discloses an optical fiber composite cable expert diagnosis system based on multiple parameters, which comprises a temperature and positioning measurement system, a local discharge quantity measurement system, a dielectric loss measurement system, an elongation at break measurement system, a mechanical stress measurement system, an expert diagnosis host system and a host computer. According to the optical fiber composite cable expert diagnosis system based on multiple parameters, temperature monitoring and early warning, continuous optical fiber composite cable operation temperature monitoring and accurate positioning, online monitoring and diagnosis evaluation on electrical parameters such as the local discharge quantity and the dielectric loss, and monitoring and diagnosis evaluation on mechanical parameters such as the elongation at break and the mechanical stress can be realized, defects in the prior art are broken through, high-efficiency, accurate and multi-parameter comprehensive diagnosis evaluation of the expert diagnosis system is thoroughly executed, the operation state of the optical fiber composite cable is monitored to the maximum degree, and the targets of accurate optical fiber composite cable service life prediction and high-efficiency and safe application are realized.

Description

technical field [0001] The invention belongs to the technical field of coal mine safety production and power equipment operation state evaluation and diagnosis, is the key to evaluate the remaining life and health status of optical fiber composite cables, and relates to a multi-parameter-based optical fiber composite cable expert diagnosis system. Background technique [0002] As one of the main equipment in the coal mine power supply system, the high-voltage cable is the key to ensure the safety and high-efficiency production of the coal mine. Underground coal mines have harsh working conditions, high humidity, and cables need to be moved, dragged or bent frequently. Studies have shown that accidents caused by cables account for about 70% of underground power supply accidents in mines. During the actual operation of high-voltage cables, they will inevitably be affected by electricity, heat, mechanical stress, and acid, alkali, salt, and coal dust, which will cause insulatio...

AI Technical Summary

Problems solved by technology

However, in the diagnosis process of complex systems such as electrical equipment, the measurement accuracy will be affected by the measurement error of the harmonic component, and the single characteristic quantity obviously has limitations.

[0004] Aiming at the existing evaluation and diagnosis methods of optical fiber composite cables, an expert diagnosis system based on multi-parameters has not been formed, and it is difficult to efficiently evaluate and diagnose the remaining life and health status of optical fiber composite cables

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