Power cable conductor temperature automatic following and control method

Abstract

The invention relates to a power cable conductor temperature automatic following and controlling method, which is composed of a data processing unit, a data acquisition unit and a control output unit related to the aspect of the hardware, and is logically constituted by a temperature rise controlling mode, an automatic tracking and control mode, a temperature stable control mode and a temperature drop controlling mode comprising: the data acquisition unit real-timely collects the current data and the temperature data of the cable and feeds back to the data processing unit, which determines the implementary adjustment amplitude according to the software algorithm, and the control output unit completes the practical performance, completes the full automatic tracking control of the cable conductor temperature. The invention realizes the temperature control process of the cable conductor with full automation and high precision, completes the automatic track and control on the temperature of the conductor with high precision, thereby effectively avoiding the defects of poor control precision and fussy technology in the traditional hand control method, and the controlling effect is excellent.

Description

technical field [0001] The invention belongs to a method for controlling the temperature of a power cable conductor, in particular to an automatic tracking and control method for the temperature of the power cable conductor to reach a stable temperature at a specified time. Background technique [0002] In power grid construction, power cables have been widely used in power grid construction, especially in urban power grid construction, due to their advantages of small footprint, low electromagnetic interference, and little influence from external factors. Existing power cables usually use solid materials as the main part to ensure their electrical insulation performance, and their safety and reliability performance is particularly important. Since there is a close theoretical relationship between the dielectric performance and insulation performance of the cable insulation material and the temperature of the conductor due to the load, therefore, before a new type of cable p...

AI Technical Summary

Problems solved by technology

In the previous test methods, relevant scientific research institutions usually use the method of "heating according to standard current data and manually adjusting current" to complete the content. This test method has the following shortcomings: 1. Heating according to standard current data cannot effectively consider Thermal field measurement errors caused by ambient temperature changes; 2. It is difficult to ensure the dynamic stability of the conductor temperature during the control process; 3. The process is cumbersome, and the temperature control accuracy is greatly affected by the quality of the operator

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