隔声屏障在变电站降噪中的应用

Application of Sound Barrier in Substation Noise Reduction

以500 kV变电站为例,利用Cadna/A软件设计变电站降噪隔声屏障方案。阐述了隔声屏障降噪数值分析过程,研究了运行站内的噪声来源、降噪措施以及运行期噪声影响评价。通过分析降噪前后本期、远期规模下的变电站噪声预测等级线分布,明确了隔声屏障方案可以有效降噪。依据模拟分析结果的现场实施效果显著,数值模拟和具体实施结果为后续变电站工程降噪提供了可靠借鉴。

Cadna/A software was used to design the noise reduction and sound barrier scheme for a 500 kV substation. This paper expounds the noise reduction numerical analysis process of the sound barrier, and studies the noise source, noise reduction measures and the impact evaluation of noise during operation. The analysis of the substation noise prediction grade line distribution before and after noise reduction makes it clear that the sound barrier scheme can effectively reduce noise. The implemention effect based on the simulation analysis results is remarkable. The numerical simulation and concrete implementation results can provide reliable reference for the noise reduction of the future substation projects.