Online monitoring and feedback system and method for partial discharge of power distribution equipment

Abstract

The invention relates to the technical field of partial discharge detection, in particular to an online monitoring and feedback system and method for partial discharge of power distribution equipment. The system includes an infrastructure management unit, an analysis display unit, a detection feedback unit and a function application unit. The infrastructure management unit is used for providing and managing infrastructure equipment; the analysis display unit is used for analyzing the partial discharge condition from multiple aspects; the detection feedback unit is used for feeding back the operation detection result of the power distribution equipment to a user; and the function application unit is used for improving the functionality of the system. The system designed by the invention can comprehensively detect the partial discharge conditions inside and outside all types of power distribution equipment, can more quickly and accurately discover the partial discharge conditions, can predict the change trend of the partial discharge, and gives out an abnormal alarm in time. According to the method, long-term real-time online power distribution equipment partial discharge monitoring can be realized, the labor investment is reduced, partial discharge symptoms of faults of the power distribution equipment can be found as early as possible, and the safety and stability of a power system are improved.

Description

technical field [0001] The invention relates to the technical field of partial discharge detection, in particular to an online monitoring and feedback system and method for partial discharge of power distribution equipment. Background technique [0002] With the continuous development of the social economy, the construction of the electric power industry is advancing by leaps and bounds. In order to ensure the stability and reliability of the electric power system, higher requirements are put forward for the safety of electric power equipment. The safe operation of the power distribution equipment in the substation has a crucial impact on the stability of the entire power system. Therefore, before the power distribution equipment fails, it is particularly important to detect and judge its internal defect status online. Among them, partial discharge is the main symptom of power distribution equipment failure, and detection of partial discharge is an effective way to evaluate ...

AI Technical Summary

Problems solved by technology

At present, there are many limitations in the method of partial discharge detection for power distribution equipment: for example, when using a portable partial discharge detector, each device or each point should be tested for no more than 24 hours; for example, when using a mobile partial discharge detector, The monitoring time of each store is within 1 to 2 months, and if there is no monitoring at other times, it is easy to miss a large number of partial discharges in the middle period, resulting in a large risk of failure of power distribution equipment, and it is difficult to detect power distribution equipment in time Symptoms of failure

At the same time, in the prior art, most partial discharge detection instruments generally use a single or a small number of detection methods, which cannot be applied to all types of power distribution equipment, and there are also limitations of inaccurate detection

However, at present, there is no system and method that adopts multiple detection methods, is suitable for all types of power distribution equipment, and can monitor partial discharge of power distribution equipment online in real time for a long time

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