| 吴健,赵亚林,耿明昕,刘志远,王绿,薛志伟,王帆.750kV变电站电晕噪声的影响与防治*[J].,2022,41(1):52-59 |
| 750kV变电站电晕噪声的影响与防治* |
| Influence and control of corona noise in 750kV substation |
| 投稿时间：2021-02-28 修订日期：2022-01-07 |
| 中文摘要: |
| 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750kV变电站噪声控制的薄弱环节。本文以西北某750kV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750kV 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1.1dB(A),邻近处厂界噪声平均降低3.3dB(A),取得了较为明显的效果。 |
| 英文摘要: |
| 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 750kV 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 1.1dB(A) on average, and the noise at the nearby plant boundary is reduced by 3.3dB(A) on average. |
| DOI：10.11684/j.issn.1000-310X.2022.01.006 |
| 中文关键词: 变电站 电晕 噪声 |
| 英文关键词: Substation Corona Noise |
| 基金项目: |
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