110 kV变电站噪声污染分析及控制

为掌握110 kV城市变电站的噪声污染水平，对正常运行的某110 kV变电站的主变及站界噪声进行系统测量，并对测试结果进行计算和分析。结果显示110 kV变电站的噪声频谱峰值主要集中在100 Hz～2 000 Hz的范围内，噪声以电磁噪声和冷却系统风机噪声为主；站界噪声测试结果显示大部分测点的昼夜噪声值均严重超标。对变电站噪声的污染特性、频谱特性和衰减规律进行分析研究，借助噪声衰减的理论，提出使变电站站界噪声达标的主要方法，为变电站设计和噪声控制提供参考。

Analysis and Control of Noise Pollution of an 110 kV Substation

In order to control the level of transformer noise of an 110 kV substation, the transformer and boundary noises of the substation in normal operation are measured and the results are analyzed. It is shown that the spectrum peak value of the 110 kV transformer noise is mainly concentrated in the frequency range of 100 Hz-2 000 Hz, and the noise is mainly the electromagnetic noise and cooling fan noise. Most of the boundary noise exceed the domestic emission standard. At last, the features, spectral characteristics and transmission laws of the noise of the 110 kV substation’s transformer are studied. And the major measures, which can make the noise at boundary of the substation to meet the standard, are proposed. This work provides a reference for noise control design of substations.