An intelligent analysis method based on distributed optical fiber temperature measurement

Abstract

The invention discloses an intelligent analysis method based on distributed optical fiber temperature measurement. Temperature equipment reports real-time temperature measurement data; each time the current temperature value is received, the system performs a temperature jump analysis on the temperature collected by each partition, and if the analyzed value exceeds the threshold, a temperature jump alarm is issued; each time the current temperature value is received, The system performs slow-change analysis and compares it with the maximum temperature, minimum temperature, ambient temperature difference, average temperature difference, and temperature difference of the zone. When the set value is exceeded, a slow-change temperature alarm is generated. This method analyzes and filters sudden changes and slow changes in temperature. When abnormal fluctuations or failures occur in the operating state of the cable and the ambient temperature, an early warning can be automatically issued in time, which further improves the safe operation level of the power cable.

Description

technical field [0001] The invention relates to an intelligent analysis method based on distributed optical fiber temperature measurement. Background technique [0002] With the development of my country's economy, the power system is developing in the direction of ultra-high voltage, large power grid, large capacity, and automation. Once an accident occurs, it will cause huge losses to the national economy. How to conduct online monitoring of running power equipment and conduct safety prediction and temperature change trend analysis, and how to conduct scientific analysis on equipment quality, operating environment, operation mode, equipment aging, load imbalance, etc. through real-time data, these are the power system problems that urgently need to be resolved. Traditional infrared thermometers, infrared imagers, temperature-sensing cables, and thermal resistance temperature measurement systems can only measure the temperature of local locations in the power system, and c...

AI Technical Summary

Problems solved by technology

Traditional infrared thermometers, infrared imagers, temperature-sensing cables, and thermal resistance temperature measurement systems can only measure the temperature of local locations in the power system, and cannot provide scientific basis for safe, economical operation, and efficient maintenance

[0003] At present, there are many optical fiber temperature measuring devices and methods on the market, but only the temperature is measured without intelligent analysis. It can only be compared manually based on experience or previous data to judge the actual condition of the cable. This method is time-consuming and laborious. , and the efficiency is low and misjudgment is high, and emergency measures cannot be taken in time

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