Method for predicting noise in wind power plant

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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