Research on Optimal Placement of Dual Channel Active Noise Reduction Secondary Sound Sources

YAN Xiaoheng; ZHA Pengcheng; LIU Guoqiang; ZHANG Chao

doi:10.13296/j.1001-1609.hva.2020.03.022

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Research on Optimal Placement of Dual Channel Active Noise Reduction Secondary Sound Sources

更新时间：2025-04-26

- Research on Optimal Placement of Dual Channel Active Noise Reduction Secondary Sound Sources
- High VoltageApparatus Vol. 56, Issue 3, Pages: 150-155+163(2020)
- 作者机构：
  
  1. 辽宁工程技术大学电气与控制工程学院
  2. 中国科学院电工研究所
  3. 中国科学院大学电子电气与通信工程学院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2020.03.022
  CLC： TM41
- Published：2020
- 稿件说明：
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[1]闫孝姮,查鹏程,刘国强,张超.双通道有源降噪次级声源优化布放的研究[J].高压电器,2020,56(03):150-155+163.

YAN Xiaoheng, ZHA Pengcheng, LIU Guoqiang, et al. Research on Optimal Placement of Dual Channel Active Noise Reduction Secondary Sound Sources[J]. High voltageapparatus, 2020, 56(3): 150-155+163.
[1]闫孝姮,查鹏程,刘国强,张超.双通道有源降噪次级声源优化布放的研究[J].高压电器,2020,56(03):150-155+163. DOI： 10.13296/j.1001-1609.hva.2020.03.022.

YAN Xiaoheng, ZHA Pengcheng, LIU Guoqiang, et al. Research on Optimal Placement of Dual Channel Active Noise Reduction Secondary Sound Sources[J]. High voltageapparatus, 2020, 56(3): 150-155+163. DOI： 10.13296/j.1001-1609.hva.2020.03.022.

摘要

由于电力变压器的磁致伸缩现象向外辐射高分贝噪声

严重影响站内工作人员及附近居民工作与生活。文中以电力变压器有源降噪为目标

通过测量与分析变压器噪声成分

建立3个偶极声源条件下的有源降噪模型

给出模型中次级声源的最优角度;采用自适应滤波算法

对电力变压器噪声进行有源降噪可行性仿真分析;搭建基于LMS算法的DSP双通道有源降噪系统

并与单通道降噪系统进行实验对比

实验结果表明

当两次级声源θ位于模型中180°角时

降噪效果优于单通道有源降噪系统

可达到10～14 dB的降噪效果。

Abstract

Due to the phenomenon of magnetostriction of power transformer radiating high-decibel noise

seriously affecting the work and life of staff in the station and nearby residents.In this paper

the active noise reduction of power transformer is the goal.By measuring and analyzing the noise components of the transformer

an active noise reduction model of three dipole sources is established

and the optimal angle of the secondary sound source in the model is given.The adaptive filtering algorithm is adopted to simulate the feasibility of active noise reduction for power transformer noise.The DSP dual channel active noise reduction system based on LMS algorithm is constructed and compared with the single-channel noise reduction system.The experimental results show that the noise reduction effect is better than the single-channel active noise reduction system when the secondary sound source a is located at180 0 in the model

and the noise reduction effect of 10～14 dB can be achieved.

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Related Institution

School of Electrical and Information, Sichuan University

State Grid Zhoushan Electric Power Supply Company of Zhejiang Power Corporation

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