摘要
因环境治理要求,开展对特高压换流站的噪声特性研究。通过采集±800kV换流站户外换流变压器的风机空气动力噪声、平波电抗器的电磁噪声、交/直流滤波器场的电磁噪声的声压信号,分析了负载条件下各位置噪声声压信号的频谱特性,给出各噪声信号的低频段及A声级噪声值。测试结果表明,换流站噪声覆盖低、中、高频段,各类噪声频谱特征较为类似;低频段能量占噪声总能量的比率更大,同一测试条件下风机的低频噪声值远高于其他换流站户外设备。
By collecting the sound pressure signals of the aerodynamic noise of the converter transformer fans, the electric field noise of the smoothing reactors and the electric field noise of the DC/ AC filter field in the 800 kV converter station, the spectrum characteristics of the sound pressure signals of different locations are analyzed under the load condition, and the low-frequency and A-weighted sound level noise values of each noise signal are given. It is concluded that the noise of HVDC convert stations covers the low-, mid- and high-frequency bands, and various types of noise signals have similar spectrum characteristics;the low-frequency energy makes up larger portion of the total noise energy, and the low-frequency noise value of the fans is much higher than that of other converter station outdoor equipment under the same test condition.
作者
韩钰
樊超
王广克
何强
HAN Yu;FAN Chao;WANG Guangke;HE Qiang(Global Energy Interconnection Research Institute Co., Ltd., Beijing 102209, China)
出处
《中国电力》
CSCD
北大核心
2019年第10期40-44,177,共6页
Electric Power
基金
国家电网公司科技项目(超/特高压输变电工程用滤波电容器声振特征研究及本体降噪用材料装置开发与应用，5455DW170028)~~
关键词
高压直流
换流站
噪声
频谱分析
HVDC
convert station
noise
spectrum analysis
