Study on Noise Test of Power Capacitor by Sound Pressure and Sound Intensity Method

ZHANG Zuan; HUANG Ying; ZHU Xuewen; ZHONG Weihua; WEI Haozheng; CHEN Pin; LI Ming

doi:10.14044/j.1674-1757.pcrpc.2020.01.019

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Study on Noise Test of Power Capacitor by Sound Pressure and Sound Intensity Method

更新时间：2024-09-14

- Study on Noise Test of Power Capacitor by Sound Pressure and Sound Intensity Method
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 41, Issue 1, Pages: 112-117(2020)
- 作者机构：
  
  1. 南方电网科学研究院有限责任公司直流输电技术国家重点实验室
  2. 中国南方电网有限责任公司
  3. 合肥工业大学
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2020.01.019
  CLC： TM53
- Published：2020，
- 稿件说明：
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[1]张祖安,黄莹,朱学文,钟伟华,魏浩征,陈品,李明.声压法与声强法测定电力电容器单元噪声试验研究[J].电力电容器与无功补偿,2020,41(01):112-117.

ZHANG ZUAN, HUANG YING, ZHU XUEWEN, et al. Study on Noise Test of Power Capacitor by Sound Pressure and Sound Intensity Method. [J]. Power capacitor & reactive power compensation, 2020, 41(1): 112-117.
[1]张祖安,黄莹,朱学文,钟伟华,魏浩征,陈品,李明.声压法与声强法测定电力电容器单元噪声试验研究[J].电力电容器与无功补偿,2020,41(01):112-117. DOI： 10.14044/j.1674-1757.pcrpc.2020.01.019.

ZHANG ZUAN, HUANG YING, ZHU XUEWEN, et al. Study on Noise Test of Power Capacitor by Sound Pressure and Sound Intensity Method. [J]. Power capacitor & reactive power compensation, 2020, 41(1): 112-117. DOI： 10.14044/j.1674-1757.pcrpc.2020.01.019.

摘要

电力电容器是高压直流换流站中的主要噪声源之一

在电容器产品出厂阶段准确测定其噪声声功率级

对预测和控制换流站整体噪声水平具有重要意义。本文首先分析了声压法和声强法测定电力电容器单元噪声声功率的方法;针对某型号的电力电容器单元

采用17点声压法和声强法开展了噪声试验研究。结果表明

声压法和声强法的测试结果非常接近

而声压法测试简单、效率高。此外

试验研究了17点声压法测量表面与电容器表面距离分别为1 m和0.3 m的结果差异

通过与声强法测试结果比较发现

当测距采用1 m时

声压法测试结果与声强法测试结果更接近。

Abstract

Power capacitor is one of the main noise sources in HVDC converter station.Accurate measurement of its noise sound power level at delivery stage is of great significance to predict and control the overall noise level of converter station.In this paper

the sound pressure method and sound intensity method are first analyzed to measure the noise sound power of power capacitor units.For a certain type of power capacitor unit

the noise test was carried out by using 17-point sound pressure and sound intensity method.It shown by the result that the test results of sound pressure and sound intensity method is very close

while the former method is simple and efficient.In addition

the difference of result with distance from the measurement surface and capacitor surface at 1 m and 0.3 m respectively by 17 points of sound pressure method is studied in the test and it is found through comparison with the test result of sound intensity method that when the measurement distance at 1 m is adopted

the result by sound pressure method and sound intensity method is more close.

关键词

电力电容器声压法声强法噪声声功率试验

Keywords

power capacitorsound pressure methodsound intensitymethod noisesound powertest

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