换流变压器BOX.pdfVIP

2011 年 第 5 卷 第 5 期 南 方 电 网 技 术 高压直流输电 2011 ，Vol. 5 ，No. 5 SOUTHERN POWER SYSTEM TECHNOLOGY HVDC Transmission + 文章编号：1674-0629 (2011)05-0018-04 中图分类号：TM631 .3 ；TB53 文献标志码：A 换流变压器 BOX-IN 结构的降噪性能 1 1 2 1 2 黄莹 ，黎小林 ，李志远 ，朱功辉 ，白宇 （1. 南方电网科学研究院，广州510080 ； 2. 合肥工业大学，合肥230009 ） 摘要：控制换流变压器的噪声是降低换流站周围厂界噪声的关键，常用的声屏障难于实现在远离换流站处的噪声控制。 对BOX-IN 隔声结构的隔声性能采用SoundPLAN 软件和实际测试进行了研究，结果表明：BOX-IN 结构的降噪性能优 于声屏障，尤其是在远离换流站处；对于换流变压器400 Hz 主要噪音，BOX-IN 的隔声效果很好。 关键词：换流变压器；厂界噪声；噪声控制；BOX-IN The Noise-Reducing Performance of BOX-IN Construction for Converter Transformer 1 1 2 1 2 HUANG Ying , LI Xiaolin , LI Zhiyuan , ZHU Gonghui , BAI Yu (1. Electric Power Research Institute, CSG, Guangzhou 510080, China; 2. Hefei University of Technology, HeFei 230009, China) Abstract: To control the noise of converter transformer is a key to reduce the audible noise at the boundary of the HVDC substation, and it is hard for the usual noise barrier to control the noise at the range of a long distance from substation. The paper researches the noise-reducing performance of BOX-IN construction for converter transformer with Sound Plan software and noise test in field, indicating that the BOX-IN construction is better than the noise barrier, especially at the range of a long distance from substation, and has a good performance to reduce the main noise at 400 Hz level from the converter transformer. Key words: converter transformer; noise at boundary; control of noise; BOX-IN. 换流变压器是直流换流站最重要的设备之一，