Study on the Test Methods to the Sound Power Level of Audible Noise from Power Capacitor

HUANG Ying1; LI Zhi-yuan2; HUANG Guo-xing2 LIANG Cong3; HUANG Cheng1; KUANG Dong-wei3 FENG Chun-lin3

doi:10.14044/j.1674-1757.pcrpc.2013.03.013

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Study on the Test Methods to the Sound Power Level of Audible Noise from Power Capacitor

更新时间：2024-09-14

- Study on the Test Methods to the Sound Power Level of Audible Noise from Power Capacitor
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 34, Issue 3, Pages: 28-32(2013)
- 作者机构：
  
  1. 南方电网科学研究院
  2. 合肥工业大学
  3. 桂林电力电容器有限责任公司
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2013.03.013
  CLC： TM531.4
- Published：2013，
- 稿件说明：
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[1]黄莹,李志远,黄国兴,梁琮,黄成,旷冬伟,冯春林.电力电容器可听噪声声功率级测试方法的研究[J].电力电容器与无功补偿,2013,34(03):28-32.

HUANG YING1, LI ZHI-YUAN2, HUANG GUO-XING2 LIANG CONG3, et al. Study on the Test Methods to the Sound Power Level of Audible Noise from Power Capacitor. [J]. Power capacitor & reactive power compensation, 2013, 34(3): 28-32.
[1]黄莹,李志远,黄国兴,梁琮,黄成,旷冬伟,冯春林.电力电容器可听噪声声功率级测试方法的研究[J].电力电容器与无功补偿,2013,34(03):28-32. DOI： 10.14044/j.1674-1757.pcrpc.2013.03.013.

HUANG YING1, LI ZHI-YUAN2, HUANG GUO-XING2 LIANG CONG3, et al. Study on the Test Methods to the Sound Power Level of Audible Noise from Power Capacitor. [J]. Power capacitor & reactive power compensation, 2013, 34(3): 28-32. DOI： 10.14044/j.1674-1757.pcrpc.2013.03.013.

摘要

电力电容器是高压直流换流站内主要噪声辐射源之一

对电力电容器可听噪声的测试原理、测试条件、测试方法等问题进行研究是十分必要的。研究表明

在用声压法进行电容器单元的声功率级测定时

为了消除测试环境的声反射等影响造成的非自由场误差

室内测试环境的修正值K应满足K≤2 dB

背景噪声应低于被测电容器单元噪声10 dB;为了减少模型假设引起的近场误差

测点到电容器单元的表面距离应在1 m以上;在测量面上的测点均匀分布时

平均声压级应采用测点数平均法计算

测点分布不均匀时

则应采用面积平均法计算。

Abstract

Power capacitor is one of main noise radiation sources in HVDC converter station and it is necessary to study test principle of audible noise of power capacitor

test condition and method etc.It is shown by the study that when test on the sound power of power capacitor unit through sound pressure method and for eliminating the un-free field error caused by the sound reflection of the testing environment

the correction value K of the indoor test environment shall be smaller or equal to 2 dB and background noise be lower than the noise of measured capacitor unit by 10 dB;In order to reduce the near-field error caused by model assumption

the distance from measured point to surface of the capacitor unit shall be over 1 m;In case of even distribution of measuring point on the measurement surface

average sound pressure level shall be calculated by the point average method and

in case of uneven

by area average method.

关键词

电力电容器声功率测试方法测试条件

Keywords

power capacitorsound powertest methodtest condition

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Related Author

LI Zhi-yuan

HUANG Guo-xing

HAUNG Ying

LIANG Cong

HUANG Cheng

KUANG Dong-wei

FENG Chun-lin

ZHANG Zuan

Related Institution

Electric Power Resaerch Institute

State Key Laboratory of HVDC Electric Power Research Institute of China Southern Power Grid

China Southern Power Grid Co.,Ltd.

Guilin Power Capacitor Co, Ltd

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