500kV变电站噪声控制措施比较研究

为控制500 kV变电站噪声污染,以某500 kV变电站为例,根据变电站的总平面布置,结合国内外现有研究成果与工程经验提出了A、B、C三种噪声控制方案,分别是增高围墙、设置隔声墙和优化布置GIS室,并采用Cadna/A噪声预测软件分析比较了各措施降噪效果.结果表明,A、B、C三种方案对厂界噪声排放的控制效果均较明显.对于站外声环境敏感建筑物,A方案设置隔声墙和C方案优化布置500 kV GIS室的效果较好.研究成果可为500 kV变电站的设计和噪声防治提供参考.

Analysis of control measures for main transformer noise in 500 kV transformer station

In order to control the noise from transformer stations,one .500 kV transformer station was taken as an example. Based on the station layout, three control measures of increasing the station wall, building sound - proof wall and optimizing the layout of GIS - Room were proposed. The noise reduction effects of the control measures were predicted by the professional software Cadna/A. As the results shown,the noise at boundary ra- diated from main transformer could be reduced reasonably by all of control measures. With regard to the noise - sensitive building beyond the station,the noise reduction effects of building sound - proof wall and optimizing the layout of GIS - Room were better than that of increasing the station wall. Then,the merit and demerit of control measures were analyzed. The research results could provide reference for 500 kV transformer station design and noise control.