城市变电站噪声的声品质烦躁度评价试验研究

Experimental Research on Evaluation of Sound Quality Annoyance of Urban Substation Noise

针对城市变电站的低频噪声对周边居民影响日趋严重,将声品质评价的概念与研究方法引入对城市变电站噪声的评估中。通过对110 k V、220 k V和500 k V三座全户内型城市变电站的噪声现场采集,采用等级评分法对变电站噪声的烦躁度品质进行主观试验,计算了所试验的声样本的心理声学参量。通过相关性分析和回归分析,建立了城市变电站噪声的烦躁度品质预测模型。研究结果表明:城市变电站噪声的烦躁度与A声级、响度、粗糙度和抖动度都有着相对较高的相关性,而与尖锐度的相关性较低。烦躁度主观预测模型主要取决于A声级与粗糙度,并且A声级的权重明显高于粗糙度。通过对城市变电站噪声的烦躁度品质进行评价,为变电站噪声的治理提供一个具体的、全新的思路与途径。

Based on the more and more serious influence of low frequency noise of urban substation,the concept and research method of sound quality evaluation were introduced to evaluation of urban substation noise. The whole-indoor urban substation noise for 110 k V,220 k V and 500 k V were collected,and the grading method is used to carried out the subjective test of annoyance quality of the substation noise,and several psychoacoustical parameters are calculated for the tested acoustic samples. The prediction model of annoyance quality of urban substation noise is established by the correlation analysis and regression analysis. The results show that the annoyance of urban substation noise has a relatively high correlation with A sound level,loudness,roughness and fluctuation,but has a low correlation with sharpness. The subjective prediction model of annoyance mainly depends on A sound level and roughness,and the weight of the A sound level is significantly higher than the roughness. By evaluating the annoyance quality of urban substation noise,it can provide a concrete and new idea and way for the substation noise control.