Research on Influence of Sound Absorption Characteristics of Firewall on Noise of Substation

LI Huiqi; CHEN Tengfei; YANG Guang

doi:10.13296/j.1001-1609.hva.2025.08.018

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Research on Influence of Sound Absorption Characteristics of Firewall on Noise of Substation

Research & Analysis | 更新时间：2025-08-08

- Research on Influence of Sound Absorption Characteristics of Firewall on Noise of Substation
- High Voltage Apparatus Vol. 61, Issue 8, Pages: 139-145(2025)
- 作者机构：
  
  华北电力大学河北省输变电设备安全防御重点实验室，河北　保定　071003
- 作者简介：
- 基金信息：
  
  National Natural Science Foundation of China(51577066);Science and Technology Program of Hebei(20550901K)
- DOI：10.13296/j.1001-1609.hva.2025.08.018
  CLC：
- Received：16 March 2025，
  
  Revised：29 May 2025，
  
  Published：16 August 2025
- 稿件说明：
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LI Huiqi, CHEN Tengfei, YANG Guang. Research on Influence of Sound Absorption Characteristics of Firewall on Noise of Substation[J]. High voltage apparatus, 2025, 61(8): 139-145.
DOI：

LI Huiqi, CHEN Tengfei, YANG Guang. Research on Influence of Sound Absorption Characteristics of Firewall on Noise of Substation[J]. High voltage apparatus, 2025, 61(8): 139-145. DOI： 10.13296/j.1001-1609.hva.2025.08.018.

摘要

通过对防火墙不同吸声特性下的变电站噪声进行预测，分析了高压变电站防火墙吸声特性对站内以及厂界噪声的影响，为新建变电站的站内优化布局和投运变电站的噪声治理提供了依据。以雄安某500 kV变电站为例，构建了变压器多点等效源模型对变电站噪声进行了仿真预测，并经过实际测量验证了预测结果的准确性；在此基础上，提出了两种防火墙吸声特性改进方案，并预测了不同方案与变电站不同位置处噪声衰减情况，验证了防火墙吸声特性对变电站噪声影响主要在防火墙两侧方向，并且提高防火墙中低频吸声性能对变电站降噪效果最为明显，提出了在利用防火墙进行吸声降噪时应着重提升防火墙在中低频段的吸声性能。文中结论可为变电站优化布局和利用防火墙进行降噪提供参考。

Abstract

In this paper

the influence of the sound absorption characteristics of the firewall of high voltage subatation on the noise of the substation and the plant boundary is analyzed by way of predicting the noise of substation of the firewall under different sound absorption characteristic so to provide a theoretical basis for the optimization layout of the new substation and the noise control of the operated substation. With a 500 kV substation in Xiong’an as an example

the multi-point equivalent source model of transformer is constructed to simulate and predict noise of substation

and the accuracy of the prediction result is verified by actual measurement. On this basis

two improvement schemes for sound absorption characteristics of firewalls are proposed

the noise attenuation of different locations of substation for various schemes is predicted. It is verified that the influence of the sound absorption characteristics of the firewall on the noise of the substation is mainly in the directions on both sides of the firewall. The noise reduction effect of the substation by improving medium and low frewncy sound absorption characterstic of firewall is the most ovbious. It is propsoed that in case of sound absorption and reduction of noise with the firewall

the sound absorption performance in the medium and low frequency range shall be particularly improved by the fire wall. The conclusion in this paper can provide reference for optimization layout of substation and noise reduction by the use of wirewall.

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