根据变电站噪声衰减特征,建立噪声衰减规律的预测数学模式,结合某城区变电站噪声监测结果进行检验。结果表明,不考虑环境背景噪声时,模拟结果与实测结果之间的误差随距离的增加而越来越大;考虑环境背景噪声时,模拟结果与实测结果较为接近,在一定传播距离内模型均有较高的准确性。 According to the characteristics of substation noise attenuation, a mathematical model of predicting the attenuation of noise is established, which is tested with the noise monitoring results of substation in a certain city. The results show that the error between the simulation result and the measured result increases with the increase of the distance without considering the environmental background noise. When considering the environmental background noise, the simulation results are close to the measured ones. In the model with a certain propagation distance Have higher accuracy.