Method for determining multi-sound-source noise equivalent model of transformer, terminal and storage medium

Abstract

The invention provides a method for determining a multi-sound-source noise equivalent model of a transformer, a terminal and a storage medium. The method comprises the following steps: acquiring space coordinates of a plurality of preset detection points around a transformer and an actual sound pressure level in a preset multiple frequency band; obtaining the number of equivalent sound sources of the transformer and space coordinates of each equivalent sound source; according to the space coordinates of the plurality of preset detection points, the actual sound pressure level in the preset multiple frequency band, the number of the equivalent sound sources and the space coordinates of the equivalent sound sources, constructing a univariate linear regression model corresponding to the preset multiple frequency band, and solving the univariate linear regression model corresponding to the preset multiple frequency band, obtaining sound pressure levels of the plurality of equivalent sound sources in a preset multiple frequency band; and according to the number of the equivalent sound sources, the sound pressure level of each equivalent sound source and the space coordinate of each equivalent sound source, obtaining a transformer multi-sound-source noise equivalent model corresponding to the preset multiple frequency band. The equivalent process is convenient and simple, and the calculation amount is small.

Description

technical field [0001] The invention relates to the technical field of noise equivalent models, in particular to a method for determining an equivalent model of noise from multiple sound sources of a transformer, a terminal and a storage medium. Background technique [0002] As the location of substations is getting closer to residential areas, the problem of noise pollution caused by substations has attracted more and more attention. The transformer is the largest single device in the substation, and it is also the main source of noise in the substation. Constructing an accurate multi-source noise equivalent model of a transformer based on the acoustic equivalent source theory is of great significance for predicting the noise model of a substation. [0003] At present, near-field acoustic holography is usually used to construct the equivalent model of transformer multi-source noise. However, this method is computationally complex and computationally intensive. Contents o...

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Problems solved by technology

[0004] The embodiment of the present invention provides a method for determining the equivalent model of transformer multi-source noise, a terminal and a storage medium, so as to solve the problems of complex calculation and large amount of calculation in the prior art

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