Power transmission and transformation line microenvironment dynamic monitoring system based on Internet of Things technology

Abstract

The invention discloses a power transmission and transformation line microenvironment dynamic monitoring system based on the Internet of Things technology, which comprises a pretest system, a monitoring system, a control center and a dispatching center, wherein the pretest system constructs a function relationship Tc=H(Tf, Te, Da) between cable surface temperature and conductor temperature; the monitoring system comprises a temperature monitor and an environment monitor, the temperature monitor monitors the surface temperature of the cable, the environment monitor monitors the environment temperature Te and humidity Da near the cable, and the temperature monitor and the environment monitor are both connected with the control center; and the control center is used for analyzing the data acquired by the monitoring system and guiding the dispatching center to execute a dispatching action. A test environment is provided for the cable through the pretest system, real measurement data is obtained, a temperature characteristic function relation is established, then a conductor temperature value is obtained through a cable skin temperature value, the capacity increasing range of the power cable can be further obtained, and the safe and reliable performance of power capacity increasing is guaranteed.

Description

technical field [0001] The invention relates to the technical field of power transmission and distribution dynamic capacity increase, in particular to a micro-environment dynamic monitoring system for power transmission and transformation lines based on Internet of Things technology. Background technique [0002] With the development of the power grid, the application of power cables in the power system is becoming more and more extensive, and the workload of its management, inspection and maintenance is also increasing. At the same time, the rapid increase in urban electricity demand has put forward higher requirements for the reliability of the power supply line capacity of power cables. The ampacity of power cables is an important dynamic parameter affected by environmental conditions and loads during cable operation. Its importance involves safe, reliable, economical and reasonable operation of power transmission and transformation lines and cable life issues. Therefore...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problem of potential hidden dangers in the cable power increase caused by the difficulty in detecting the real temperature of overhead cables. Provide the test environment to obtain real measurement data to establish the functional relationship between the conductor, cable skin temperature and cable load, and then monitor the overhead cable skin temperature in real time through the infrared temperature monitor to obtain the conductor temperature value, and then obtain the power cable capacity expansion. The scope of expansion ensures the safety and reliability of power capacity expansion

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