Niose Reduction Method with Acoustic Metamaterials Based on Noise Characteristics of Power Transformer

WANG Tianzheng; ZHANG Chao; ZHAO Xinzhe; KANG Yinzhu; LIU Guoqiang; TANG Baoguo

doi:10.13296/j.1001-1609.hva.2019.11.041

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Niose Reduction Method with Acoustic Metamaterials Based on Noise Characteristics of Power Transformer

更新时间：2025-04-26

- Niose Reduction Method with Acoustic Metamaterials Based on Noise Characteristics of Power Transformer
- High VoltageApparatus Vol. 55, Issue 11, Pages: 277-282(2019)
- 作者机构：
  
  1. 国网山西省电力公司电力科学研究院
  2. 中国科学院电工研究所
  3. 国网山西省电力公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2019.11.041
  CLC： TB53;TM41
- Published：2019
- 稿件说明：
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[1]王天正,张超,赵欣哲,亢银柱,刘国强,唐保国.基于电力变压器噪声特性的声学超材料降噪方法[J].高压电器,2019,55(11):277-282.

WANG Tianzheng, ZHANG Chao, ZHAO Xinzhe, et al. Niose Reduction Method with Acoustic Metamaterials Based on Noise Characteristics of Power Transformer[J]. High voltageapparatus, 2019, 55(11): 277-282.
[1]王天正,张超,赵欣哲,亢银柱,刘国强,唐保国.基于电力变压器噪声特性的声学超材料降噪方法[J].高压电器,2019,55(11):277-282. DOI： 10.13296/j.1001-1609.hva.2019.11.041.

WANG Tianzheng, ZHANG Chao, ZHAO Xinzhe, et al. Niose Reduction Method with Acoustic Metamaterials Based on Noise Characteristics of Power Transformer[J]. High voltageapparatus, 2019, 55(11): 277-282. DOI： 10.13296/j.1001-1609.hva.2019.11.041.

摘要

变压器噪声控制作为高压输变电工程中亟待解决的问题成为研究热点。文中对特高压变压器的噪声进行测量分析

得到变压器噪声的主频点。以设计具有通风、占用面积小、不导电不导磁、隔声性能好的声屏障为目标

借鉴希尔伯特射频天线结构

提出一种适用于变压器降噪的声学超材料结构。通过有限元数值模拟

研究了声学超材料单胞的隔声特性。在此基础上

选择声学超材料单胞的参数

使其共振频率点避开变压器噪声的主频点

获得了较高的传声损失。采用阻抗管实验测量了声学超材料在变压器噪声主频点的传声损失

结果表明

设计的超材料传声损失最高可达20 dB左右

具备良好的隔声性能

并且实验与仿真结果相吻合。

Abstract

Transformer noise control has become a hot topic in various fields as a difficult problem to be solved in HVDC power transmission projects.This paper analyzes the noise of UHV transformers to design a sound barrier with ventilation

small occupied area

non-conductive non-magnetic permeability.For the goal

an acoustic metamaterial unit cell suitable for transformer noise reduction is proposed.The design of the acoustic metamaterial unit cell is inspired by the application of the Hilbert curve in the RF antenna.The Hilbert curve is used as the propagation path of the acoustic wave. And design the resonant frequency point to avoid the main frequency point of the transformer noise

so as to obtain higher transmission loss. The acoustic properties of the acoustical metamaterial unit cell are calculated by finite element simulation and the transmission loss at the main frequencies of the transformer noise is measured using an impedance tube.It is found that the acoustic metamaterial can have excellent sound insulation performance under the premise of meeting the design goal.The transmission loss can reach about 20 dB

and the experimental and simulation results are in good agreement within the allowable error range.

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