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Method for measuring audible noise of transformer substation

A noise measurement and substation technology, applied in the direction of measuring devices, measuring ultrasonic/sonic/infrasonic waves, instruments, etc., can solve the problem of inaccurate test results of audible noise in substations, and achieve accurate operating conditions and accurate measurement results.

Active Publication Date: 2019-04-26
SHENZHEN POWER SUPPLY BUREAU
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Problems solved by technology

[0005] Based on this, it is necessary to provide a measurement method for substation audible noise to solve the problem of inaccurate test results of substation audible noise in the traditional scheme

Method used

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  • Method for measuring audible noise of transformer substation
  • Method for measuring audible noise of transformer substation
  • Method for measuring audible noise of transformer substation

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Embodiment Construction

[0073] Traditional solutions cannot effectively filter out noises when testing audible noise in electromagnetic environments, resulting in inaccurate test results and the inability to obtain accurate changes in audible noise in electromagnetic environments over a long period of time. Therefore, the present application provides a method for measuring substation audible noise, which can solve the problem of inaccurate test results of substation audible noise in the traditional solution.

[0074] The purpose of this application is to provide a method for measuring the audible noise of substations adjacent to roads or farmland, with the goal of eliminating interference from vehicles and insects, cleaning data through multi-point testing combined with spectrum analysis, and retaining audible noise data of substations. In order to achieve the purpose of testing audible noise for a long time. It can be understood that the substation audible noise measurement method provided in this a...

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Abstract

The invention relates to a method for measuring audible noise of a transformer substation, which comprises the following steps: S100, at least three noise measuring probes are arranged in a measuringarea. S200, all the noise measuring probes acquire noise information in the measuring area and obtain a measurement result. S300, the measurement result is analyzed to acquire a change rule of environmental noise from the measurement result, and invalid data in the measurement result is removed according to the change rule to obtain effective data of the audible noise of the transformer substationwithout environmental noise interference. According to the method, audible noise data of the measuring area and test points can be acquired, the audible noise data can be analyzed and compared, the invalid data can be removed, and the effective data of the audible noise of the transformer substation can be obtained. The method can effectively remove invalid data of the audible noise of the transformer substation, thereby solving the problem that the test result of the audible noise of the transformer substation in a prior scheme is inaccurate.

Description

technical field [0001] The present application relates to the technical field of electromagnetic field measurement, in particular to a method for measuring audible noise in substations. Background technique [0002] Audible noise is a necessary indicator in electromagnetic environment testing. For the audible noise test around the substation, the measurement work is usually carried out in a quiet environment, but for the long-term audible noise monitoring, due to the influence of nearby road vehicles, insects or human voices at night, the measurement data is noisy It is difficult to analyze and obtain the accurate change law of audible noise over a long period of time. [0003] For the research on this kind of audible noise data cleaning, two methods are mainly used at present. First, distinguish and analyze the spectral characteristics of different sound sources, and numerically filter out typical noises such as insects and human voices. However, the method of numerical n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01H17/00
CPCG01H17/00
Inventor 田杰余鹏
Owner SHENZHEN POWER SUPPLY BUREAU
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