A method and a system for identifying audible noise abnormal data of an alternating-current ultra-high voltage transmission line

Abstract

The invention provides a method and a system for identifying audible noise abnormal data of an alternating current ultra-high voltage transmission line. The method comprises the following steps: firstly, calculating and determining Euclidean distance data between i environment sensitive targets and a wire, and generating an Euclidean distance data matrix based on the Euclidean distance data; Thenconstructing a to-be-clustered data matrix by splicing the equivalent continuous A sound level data matrix and the Euclidean distance data matrix of the environment sensitive target and the wire; Andafter density clustering is carried out on the to-be-clustered data matrix Ci2 by adopting a DBSCAN algorithm, determining that the matrix containing most elements in the clustering result belongs toeffective data, and classifying the rest part in the clustering result into abnormal data. The method and the system for identifying the audible noise abnormal data of the alternating-current ultra-high voltage transmission line can be applied to real-time processing of large-scale audible noise data, an automatic method is adopted for processing, new subjective errors caused by manual operation are reduced, and the method and the system are high in precision and comprehensive.

Description

technical field [0001] The present invention relates to the field of power grid acoustic environment, and more specifically, to a method and system for identifying audible noise abnormal data of AC ultra-high voltage transmission lines. Background technique [0002] With the sustained and rapid economic development, the electricity load has also increased significantly. When the distribution of power generation energy resources and power load is extremely unbalanced, "high voltage" and "long distance" power transmission methods are generally adopted to meet the needs of optimal energy allocation and rapid development of clean energy. [0003] "High voltage" is reflected in the commitment to build a strong smart grid with the UHV grid as the backbone grid, and in the UHV transmission system, the corona effect of the transmission line is obvious. The corona effect mainly includes corona loss, radio interference and audible noise. Among them, the problem of audible noise has ...

AI Technical Summary

Problems solved by technology

[0008] In order to solve the problem of the lack of effective data and abnormal data for identifying the audible noise of the AC ultra-high voltage transmission line in the prior art, the present invention provides a method for identifying the abnormal data of the audible noise of the AC ultra-high voltage transmission line. The methods described include:

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