Current Situation of Noise and Its Reduction Measures of Power Capacitor for ±800 kV UHVDC Project

HAO Zhiyuan; WU Fangjie; XIAO Kun

doi:10.14044/j.1674-1757.pcrpc.2017.04.015

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Current Situation of Noise and Its Reduction Measures of Power Capacitor for ±800 kV UHVDC Project

更新时间：2024-09-14

- Current Situation of Noise and Its Reduction Measures of Power Capacitor for ±800 kV UHVDC Project
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 38, Issue 4, Pages: 88-93(2017)
- 作者机构：
  
  1. 国网北京经济技术研究院
  2. 国家电网公司直流建设部
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2017.04.015
  CLC： TM53;TM721.1
- Published：2017，
- 稿件说明：
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[1]郝致远,吴方劼,肖鲲.±800kV特高压直流工程电力电容器噪声现状与降噪措施[J].电力电容器与无功补偿,2017,38(04):88-93.

HAO ZHIYUAN, WU FANGJIE, XIAO KUN. Current Situation of Noise and Its Reduction Measures of Power Capacitor for ±800 kV UHVDC Project. [J]. Power capacitor & reactive power compensation, 2017, 38(4): 88-93.
[1]郝致远,吴方劼,肖鲲.±800kV特高压直流工程电力电容器噪声现状与降噪措施[J].电力电容器与无功补偿,2017,38(04):88-93. DOI： 10.14044/j.1674-1757.pcrpc.2017.04.015.

HAO ZHIYUAN, WU FANGJIE, XIAO KUN. Current Situation of Noise and Its Reduction Measures of Power Capacitor for ±800 kV UHVDC Project. [J]. Power capacitor & reactive power compensation, 2017, 38(4): 88-93. DOI： 10.14044/j.1674-1757.pcrpc.2017.04.015.

摘要

本文通过建立基于传声器的噪声测量系统

对我国目前在建或即将投运的±800 kV特高压直流工程的交流滤波器电容器单元的噪声进行了测量

研究谐波电流与电容器单元噪声之间的关系

提出并采用针对电容器单元的降噪措施

验证降噪措施的效果。研究结果表明

由于11次、13次谐波电流过大

BP11/13滤波电容器单元的噪声水平达65dB以上。采取加装吸音罩等外部降噪措施后

总体噪声水平可降低5dB以上。

Abstract

In this paper

the noise of AC filter capacitor unit for ±800kV UHVDC project under construction or to be operated in China is measured through the noise measurement system which is set up on the basis of microphone

the relation between harmonic current and the noise of capacitor unit is studied.The noise reduction measures for the capacitor unit is proposed and adopted to verify the noise reduction result. It is shown by the study result that since the 11 th and 13 th harmonic current is too big the noise level of BP11/13 filter capacitor unit reaches above 65 dB. And the total noise reduction level can be reduced above 5 dB after the addition of such external noise reduction measures as sound-absorbing enclosures

关键词

电力电容器单元谐波电流电容器噪声降噪措施

Keywords

power capacitor unitharmonic currentcapacitor noisenoise reduction measures

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