750 kV变电站电晕噪声的影响与防治  

Influence and control of corona noise in 750 kV substation

作　　者：吴健[1,2] 赵亚林 耿明昕 刘志远 王绿 薛志伟 王帆 WU Jian;ZHAO Yalin;GENG Mingxin;LIU Zhiyuan;WANG Lyu;XUE Zhiwei;WANG Fan(Xi’an Jiaotong University,Xi’an 710049,China;Shaanxi Electric Power Research Institute of SGCC,Xi’an 710054,China;State Grid Ningxia Electric Power Company,Yinchuan 750001,China;State Grid Shaanxi Electric Power Company,Xi’an 710048,China;Datang Baoji Second Power Generation Company,Baoji 721000,China)

机构地区：[1]西安交通大学,西安710049 [2]国网陕西省电力公司电力科学研究院,西安710054 [3]国网宁夏电力有限公司,银川750001 [4]国网陕西省电力公司,西安710048 [5]大唐宝鸡第二发电有限责任公司,宝鸡721000

出　　处：《应用声学》2022年第1期52-59,共8页Journal of Applied Acoustics

基　　金：国网公司科技项目(5226SX19000T)。

摘　　要：电晕噪声不同于的传统的电气设备噪声,其发声位置高、频带宽、声源分散,是750 kV变电站噪声控制的薄弱环节。该文以西北某750 kV变电站为例,使用紫外成像仪定位了36处主要电晕噪声点,基于噪声实测和全站声场仿真分析,研究了电晕噪声对变电站声环境的影响。针对主要电晕点的实际情况,提出了具体的电晕噪声防治措施。治理措施在该站750 kV I母第6间隔电晕噪声治理中获得实际应用,治理后I母线下噪声平均降低1.1 dB(A),邻近处厂界噪声平均降低3.3 dB(A),取得了较为明显的效果。Corona noise position is high and scattered,and its frequency bandwidth is wide.This makes it different from the noise of traditional electrical equipment.This paper takes a 750 kV substation in Northwest China as an example,36 main corona noise points have been located using an ultraviolet imager.Based on the noise measurement and the sound field simulation analysis of the whole station,the influence of corona noise is studied.Specific measures to prevent and control corona noise are proposed for the main corona points.The treatment measures have been practically applied in the substation.After treatment,the noise under bus I is reduced by 1.1 dB(A)on average,and the noise in the vicinity of plant boundary is reduced by 3.3 dB(A)on average.

关 键 词：变电站 电晕 噪声 

分 类 号：TM721.1[电气工程—电力系统及自动化]