换流站环境噪声预测及预测方法比较  

The prediction of environmental noise in converter station and the contrast of the predicting methods

作　　者：廖俊彦[1] 李志远[2] 

机构地区：[1]合肥工业大学资源与环境工程学院,安徽合肥230009 [2]合肥工业大学机械与汽车工程学院,安徽合肥230009

出　　处：《西南民族大学学报（自然科学版）》2008年第5期1015-1020,共6页Journal of Southwest Minzu University(Natural Science Edition)

摘　　要：随着工业、交通事业的快速发展,噪声问题已成为一项严重的环境问题.在项目建设之前进行环境噪声的预测是十分重要且可行的.本文将通过使用作者编写的噪声预测软件,以贵广二回直流工程极2系统调试—宝安换流站噪声预测为例,建立噪声传播模型,分别用倍频带声压级与A声级数据进行预测,并将预测值与现场实测值以及丹麦B&K噪声预测软件Predictor Type 7810的预测值进行对比,以比较两种预测方法的预测精度以及与国外噪声预测软件之间的预测误差,并在此基础上对预测原理进行适当的补充和修正.结果表明,两种预测方法的预测精度都是较高的,且用倍频带方法预测的精度要高于用A声级方法预测的精度.该预测作为"十一五"科技支撑计划"特高压输变电开发与示范"项目的子项目"±800kV直流系统可听噪声计算软件的开发"的一部分,对该项目的开展和实施具有较大的现实意义.With the fast development of urban industry and traffic, noise has become a serious environmental problem. The prediction of environmental noise is very important and practicable. This paper uses the noise predicting software written by the authors, takes the BaoAn converter station for example, and establishes proper sound broadcast model to predict the environmental noise by means of octave sound pressure level and A-weighted sound pressure level. The results will be compared with the results which are practically measured and results predicted by the B＆K Predictor Type 7810 software, in order to verify the deviation between the two methods and the predicting deviation compared with the overseas noise predicting software. On this base, we could precisely make sure the enter parameters. The results show that the precision of the two predicting methods is relatively high, and the results predicted by octave sound pressure level is more precise than by A-weighted sound pressure level. As part of the bearable noise predicting soft campaign in ±800kV DC system wbich is subordinate to UHV power transmission and transformation campaign and demonstration project supported by Outline of the Eleventh Five-Year Plan, it is of great significance to the implementationof the project.

关 键 词：换流站 环境噪声 预测 倍频带 A声级 比较 

分 类 号：TB533[理学—物理]