Study on Noise Reduction Measures of Capacitor Based on Central Symmetrical Arrangement

JIANG Zhitong; Cui Hantao; ZHU Limin; JI Shengchang; ZHU Lingyu; LI Jingu; SHI Yuhang

doi:10.14044/j.1674-1757.pcrpc.2018.05.002

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Study on Noise Reduction Measures of Capacitor Based on Central Symmetrical Arrangement

更新时间：2024-09-14

- Study on Noise Reduction Measures of Capacitor Based on Central Symmetrical Arrangement
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 39, Issue 5, Pages: 7-12(2018)
- 作者机构：
  
  1. 西安交通大学电力设备电气绝缘国家重点实验室
  2. 上海永锦电气集团有限公司
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2018.05.002
  CLC： TM53
- Published：2018，
- 稿件说明：
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[1]姜智桐,崔瀚焘,朱黎敏,汲胜昌,祝令瑜,李金宇,师愉航.基于中心对称布置的电容器装置噪声优化措施研究[J].电力电容器与无功补偿,2018,39(05):7-12.

JIANG ZHITONG, CUI HANTAO, ZHU LIMIN, et al. Study on Noise Reduction Measures of Capacitor Based on Central Symmetrical Arrangement. [J]. Power capacitor & reactive power compensation, 2018, 39(5): 7-12.
[1]姜智桐,崔瀚焘,朱黎敏,汲胜昌,祝令瑜,李金宇,师愉航.基于中心对称布置的电容器装置噪声优化措施研究[J].电力电容器与无功补偿,2018,39(05):7-12. DOI： 10.14044/j.1674-1757.pcrpc.2018.05.002.

JIANG ZHITONG, CUI HANTAO, ZHU LIMIN, et al. Study on Noise Reduction Measures of Capacitor Based on Central Symmetrical Arrangement. [J]. Power capacitor & reactive power compensation, 2018, 39(5): 7-12. DOI： 10.14044/j.1674-1757.pcrpc.2018.05.002.

摘要

随着高压直流输电系统的输送功率增大

换流站的噪声问题也变得更加严峻。交流滤波场中的电容器装置作为主要的噪声源之一

其降噪需求日益提升。本文通过对电容器外壳表面进行振动形态的实际测量

建立4台电容器简化仿真模型。仿真得出中心对称布置下声压分布比常规布置更加均匀;电容器在中心对称布置下

其正相对底面的间距为某频率声波在空气中的半波长的2倍时

该频率下电容器装置噪声声功率达到极小值。并据此提出了中心对称的电容器装置优化布置方式

及通过调整底面间距进一步降低辐射声功率的降噪措施。

Abstract

With the increase of transmission power in HVDC system

the noise problem at converter stationhas become more severe. The noise reduction demand for the capacitor device in the AC filter field

as oneof noise sources

is growing. In this paper

the simplified simulation model for four units of capacitors is setup through actual measurement of vibration shape on the surface of capacitor case. The result from the simu-lation is that the sound pressure distribution under central symmetrical layout is more even compared to theconventional layout. At central symmetrical layout of capacitor

when the distance from its positive phase to bottom is that when the acoustic wave at certain frequency is 2 times half wave length in the air

the noisepower of capacitor at the frequency reaches minimum. On this basis

the optimization layout mode of cen-tral symmetrical capacitor is proposed. And the noise reduction measures on reducing radiation sound pow-er are reduced further by the adjustment of bottom distance.

关键词

电容器装置仿真模型中心对称布置降噪措施

Keywords

capacitor devicesimulation modelcentral symmetrical layoutnoise reduction measures

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