Measurement for Sound Power of a UHV Transformer Based on a Combined Vibration and Sound Pressure Method

ZHANG Jiangong; WANG Yanzhao; CHEN Yuchao; WANG Yuxing; ZHOU Bing; HU Jingzhu

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Measurement for Sound Power of a UHV Transformer Based on a Combined Vibration and Sound Pressure Method

更新时间：2025-12-08

- Measurement for Sound Power of a UHV Transformer Based on a Combined Vibration and Sound Pressure Method
- Vol. 45, Issue 6, Pages: 1843-1850(2019)
- 作者机构：
  
  1. 中国电力科学研究院有限公司电网环境保护国家重点实验室
  2. 浙江大学生物医学工程与仪器科学学院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published Online：30 June 2019，
  
  Published：2019
- 稿件说明：
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ZHANG Jiangong, WANG Yanzhao, CHEN Yuchao, et al. Measurement for Sound Power of a UHV Transformer Based on a Combined Vibration and Sound Pressure Method[J]. 2019, 45(6): 1843-1850.
DOI：

ZHANG Jiangong, WANG Yanzhao, CHEN Yuchao, et al. Measurement for Sound Power of a UHV Transformer Based on a Combined Vibration and Sound Pressure Method[J]. 2019, 45(6): 1843-1850. DOI：

摘要

为了确定变电站内主要设备的辐射声功率

以便掌握其在变电站厂界噪声中的具体贡献

采用声压法和声强法对多台1 000 kV特高压变压器的声辐射功率进行了测量研究

结果显示:在典型特高压变电站环境（非自由场刚性壁面防火墙）下

声强法计算得到的声功率值普遍比声压法计算结果低3～5 dB。鉴于此

提出了一种基于本体振速和风机声压测量的特高压变压器声功率现场测量方法

并运用到多台特高压变压器进行实测验证。所提主变声功率计算方法与声压法测算值更为接近

平均误差仅为0.75 dB

而与声强法的平均误差为4.5 dB。同时

该方法还具有一定的抗干扰能力

适于在特高压变压器的实际安装环境下进行声功率测量

可以有效地区分特高压变压器的噪声来源

为变压器的噪声治理提供技术支持。

Abstract

To determine the sound radiation power of devices in power stations and the contribution to enterprises noises

we measured the sound radiation power of several 1 000 kV Ultra High Voltage（UHV） transformers by a sound pressure and sound intensity methods. Results show that the sound power measured by the sound intensity method is 3～5 dB lower than that by the sound pressure method. Therefore

we propose a new combined method

which is based on the on-site vibration and sound pressure measurement

to determine the UHV transformer noise levels. It is found that the sound power measured by this method is closer to that by the sound pressure method

with only 0.75 dB averaged deviation

and has an error of 4.5 dB compared with that by the sound intensity method. Meanwhile

the measurement results show that this method possesses a good performance of anti-interference and is suitable for onsite measurement of the noise level for the UHV transformers. The method can effectively distinguish the noise resources of UHV transformers

and thus provide the technological support for treatment of noises from UHV transformers.

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