某500 kV主变扩建工程噪声预测及治理方案比选研究

Comparative Study on Noise Prediction and Control Scheme of a 500 kV Main Transformer Expansion Project

文章以我国广西某500 kV变电站主变扩建工程为例,通过分析其噪声源特性,运用SoundPLAN软件预测分析了主变扩建对变电站站界噪声的影响,在噪声传播途径方面提出不同的噪声治理方案。通过综合比选,推荐技术可行、经济合理的降噪方案。应用效果表明,在传播途径上声屏障的降噪效果优于其它方案,且距离噪声源越近降噪效果越好,但考虑投资及施工工期等多方因素,在能满足相关噪声标准要求的情况下,加高围墙成为“多快好省”的最佳治理方案。研究成果为高压变电站噪声治理提供工程实践经验。

Taking the main transformer expansion project of a 500 kV substation in Guangxi as an example,this paper analyzes the noise source characteristics and predicts the effect of the main transformer expansion on substation boundary noise by using SoundPLAN software,and puts forward different noise control schemes in the aspects of noise transmission.Through comprehensive comparison and selection,the technical feasible,economical and reasonable noise reduction scheme is recommended.The application results show that the noise reduction effect of the noise barrier is better than other schemes in the way of transmission,and the closer the distance to the noise source,the better the noise reduction effect.However,considering the investment and construction period and other factors,if the relevant noise standards can be met,the higher the wall becomes the best control scheme of"more fast,better saving".Noise control project of 500 kV substation extension can provide practical experience for noise control of high-voltage substation.