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Method for predicting noise in wind power plant

A forecasting method and technology for wind farms, applied in electrical digital data processing, special data processing applications, instruments, etc., can solve problems such as the inability to achieve noise forecasting, without considering the difference of radiated noise, etc., and achieve the effect of rational design and noise reduction

Active Publication Date: 2014-05-28
STATE GRID CORP OF CHINA +2
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Problems solved by technology

However, neither the attenuation of sound propagation by the wind speed after passing through the wind farm nor the difference in radiated noise under different operating conditions and loads of wind turbines; at the same time, the above-mentioned sound source propagation prediction model can only predict short-term wind power operation noise, and cannot Achieve different seasons and long-term noise prediction

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  • Method for predicting noise in wind power plant
  • Method for predicting noise in wind power plant

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Embodiment Construction

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0034] The wind farm noise prediction method provided by the present invention is based on the noise model of the wind farm, combined with the topography, climate and other sound propagation influencing factors of the wind farm and the working status of the wind farm to predict the noise of the wind farm. For real-time noise prediction and long-term noise prediction based on perennial monitoring data, the wind farm noise prediction method provided by the present invention can better evaluate the noise impact of the wind farm on the surrounding area within 10 kilometers.

[0035] The method includes noise prediction for a single wind turbine and a plurality of wind turbines, ie, a wind farm;

[0036] ①: A single wind turbine: Based on the mechanism of aerodynamic noise, the a...

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Abstract

The invention provides a method for predicting noise in a wind power plant. The method comprises the steps that 1, an apparent sound power level database and a meteorological data database of a wind turbine generator in the wind power plant are established; 2, an equivalent discharging sound power level of the wind turbine generator is obtained; 3, a wind power plant sound pressure level, relative to a sound source measuring receiving point, of the wind power plant is obtained. Compared with the prior art, the method for predicting noise in the wind power plant can conduct real-time and long-period noise prediction on the wind power plant based on the geographical characteristics of the wind power plant.

Description

technical field [0001] The invention relates to a noise prediction method, in particular to a wind farm noise prediction method. Background technique [0002] The sound source propagation prediction model in the atmosphere is based on the sound power level of the sound source, the temperature, wind speed, vegetation, terrain and other influencing factors of the sound source propagation environment, and calculates the far-field distribution of noise at different distances for a single or multiple sound sources Construct. The prediction model of sound source propagation can be used in the assessment of noise environmental impact, and can play a guiding role in the construction of noise prevention and control facilities. [0003] Sound source propagation prediction models used for far-field noise prediction in the prior art include ISO9613-2 sound propagation model, ENM (environmental noise model) of Australia, WiTuProp of Denmark, and so on. In these sound source propagation...

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Application Information

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IPC IPC(8): G06F19/00
CPCY02A90/10
Inventor 薛扬管鲁阳马晓晶王瑞明焦渤付德义边伟李松迪贾利峰
Owner STATE GRID CORP OF CHINA
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