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Method and device for actively reducing noise of power distribution room based on analytic hierarchy process

An AHP, active noise reduction technology, applied in active noise control, musical instruments, sounding equipment, etc., can solve the problems of high noise reduction cost and unfavorable heat dissipation of equipment, and achieve the effect of improving noise reduction effect and reducing noise reduction cost.

Inactive Publication Date: 2020-11-06
GUANGDONG POWER GRID CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to overcome at least one defect of the above-mentioned prior art, and provide a method and device for active noise reduction in power distribution rooms based on the AHP to solve the problem of high cost of noise reduction and unfavorable heat dissipation of equipment. to reduce the cost of noise reduction, not affect the heat dissipation of the equipment, and improve the effect of noise reduction

Method used

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  • Method and device for actively reducing noise of power distribution room based on analytic hierarchy process
  • Method and device for actively reducing noise of power distribution room based on analytic hierarchy process
  • Method and device for actively reducing noise of power distribution room based on analytic hierarchy process

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Embodiment 1

[0050] like figure 1 As shown, this embodiment provides a method for actively reducing noise in a power distribution room based on the AHP, and the method includes the following steps:

[0051] S1: separate primary sound waves to obtain high-frequency sound waves and low-frequency sound waves; the primary sound waves are noise sound waves in the power distribution room;

[0052] S2: calculate respectively the comprehensive score that active noise reduction is carried out to full wave, described high-frequency sound wave and described low-frequency sound wave, and calculate the comprehensive score that does not carry out noise reduction;

[0053] The comprehensive score is a comprehensive evaluation index for the noise of the power distribution room; the calculation of the comprehensive score adopts the analytic hierarchy process;

[0054] said full wave includes said high frequency sound wave and said low frequency sound wave;

[0055] S3: According to the result of the comp...

Embodiment 2

[0072] This embodiment provides a noise reduction device applying the method for active noise reduction in a power distribution room in Embodiment 1. The device includes a primary sound wave conversion module, a comprehensive scoring module and a secondary sound wave output module; the primary sound wave conversion module Connected with the comprehensive scoring module, the comprehensive scoring module is also connected with the secondary sound wave output module;

[0073] The AHP is set in the comprehensive scoring module.

[0074] It should be noted that, if image 3 As shown, the device first separates the primary sound waves into high-frequency sound waves and low-frequency sound waves through the primary sound wave conversion module. In addition, the primary sound wave conversion module converts high-frequency sound waves, low-frequency sound waves and full waves into electrical signals and transmits them to the comprehensive scoring module. After receiving the electrica...

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Abstract

The invention provides a method and device for actively reducing noise of a power distribution room based on an analytic hierarchy process, and the method comprises the following steps: separating a primary sound wave, and obtaining a high-frequency sound wave and a low-frequency sound wave; respectively calculating comprehensive scores of active noise reduction of the full wave, the high-frequency sound wave and the low-frequency sound wave, and calculating comprehensive scores when noise reduction is not performed; and outputting a corresponding secondary sound wave according to the result of the comprehensive score. The device comprises a primary sound wave conversion module, a comprehensive scoring module and a secondary sound wave output module. The primary sound wave conversion module is connected with the comprehensive scoring module, and the comprehensive scoring module is further connected with the secondary sound wave output module; and the comprehensive scoring module is internally provided with the analytic hierarchy process. The secondary sound waves are used for offsetting the primary sound waves to achieve active noise reduction, so that the problems that an existingpower distribution room is high in noise reduction cost and unfavorable for equipment heat dissipation are solved.

Description

technical field [0001] The invention relates to the field of electric power engineering facilities, and more specifically, to a method and device for actively reducing noise in a power distribution room based on the analytic hierarchy process. Background technique [0002] In recent years, with the vigorous development of urban construction in our country, distribution stations, as the hub of electric energy transmission, support the important task of urban construction, and have been widely used, making people closer and closer to it. While people enjoy the greatly improved power quality and reliability brought by the distribution station, they also suffer from the noise it brings. In recent years, the power grid has received a large number of noise complaints, which has greatly increased people's concerns about the construction of power distribution rooms. [0003] The main part of the noise in the power distribution room is the noise generated by the transformer. The ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10K11/178
CPCG10K11/178G10K2210/125
Inventor 罗阳梁汝波区振华陆新永陈志成何智祥陈卓昀胡梓新杨薇刘振杰龙希金
Owner GUANGDONG POWER GRID CO LTD
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