Partial discharge PRPS atlas identification method and system based on hierarchy rule inference

Abstract

The invention provides a partial discharge PRPS (Phase Resolved Pulse Sequence) atlas identification method and system based on hierarchy rule inference. The partial discharge PRPS atlas identification method based on hierarchy rule inference includes the step 1: detecting a partial discharge signal of electric power equipment and obtaining a PRPS atlas; the step 2: processing the PRPS data in the PRPS atlas and obtaining a PRPS characteristic parameter; and the step 3: analyzing the PRPS characteristic parameter through a hierarchy rule inference diagnostic system to determine and obtain the partial discharge type of the electric power equipment. The partial discharge PRPS atlas identification method based on hierarchy rule inference can effectively identify various partial discharge signal types and noise signal types, and can simply and accurately diagnose the partial discharge mode of the electric power equipment to provide reliable basis for diagnosis of the insulation state of the electric power equipment.

Description

technical field [0001] The invention relates to the field of electric equipment fault diagnosis, in particular to a partial discharge PRPS (PhaseResolvedPulseSequence, pulse sequence phase characteristic) pattern recognition method based on hierarchical rule reasoning. Background technique [0002] Partial discharge is an important symptom of insulation failure in power equipment, and it is also the main reason for further deterioration of insulation. Factors that cause partial discharge damage to insulation include thermal action, bombardment of charged particles, chemical active substances produced by partial discharge, mechanical effects, and shock waves and radiation. These factors often exist at the same time, causing erosion and structural changes, thereby changing the electrical and mechanical strength of the medium, and destroying the insulation performance of electrical equipment. [0003] Partial discharge will produce a series of physical phenomena and chemical c...

AI Technical Summary

Problems solved by technology

Due to the current partial discharge test equipment and technology are different, there is a lack of unified data specification, and the mutual comparison of test results and the interoperability of historical test data are not used.

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