Research on Vibration and Noise Characteristics of Double-layer Air-core Reactor Under Harmonic Excitation

GAO Lu; LU Ling; ZHU Lingyu; LI Jingyu; JI Shengchang; LI Yixin

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Research on Vibration and Noise Characteristics of Double-layer Air-core Reactor Under Harmonic Excitation

更新时间：2025-07-10

- Research on Vibration and Noise Characteristics of Double-layer Air-core Reactor Under Harmonic Excitation
- High Voltage Apparatus Pages: 1-8(2025)
- 作者机构：
  
  1.西安交通大学电力设备与电气绝缘国家重点实验室，西安　710049
  2.国网湖南电力科学研究院，长沙　410007
  3.中国电力科学研究院有限公司，武汉　430074
- 作者简介：
- 基金信息：
  
  Science and Technology Project of SGCC(5216A021003T)
- DOI：
  CLC：
- Published：
- 稿件说明：
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GAO Lu, LU Ling, ZHU Lingyu, et al. Research on Vibration and Noise Characteristics of Double-layer Air-core Reactor Under Harmonic Excitation[J/OL]. High voltage apparatus, 2025, 1-8.
DOI：

GAO Lu, LU Ling, ZHU Lingyu, et al. Research on Vibration and Noise Characteristics of Double-layer Air-core Reactor Under Harmonic Excitation[J/OL]. High voltage apparatus, 2025, 1-8. DOI：

摘要

广泛应用于高压换流站的干式空心电抗器承受频率含量丰富的谐波电流作用，产生严重的振动及噪声污染问题。干式空心电抗器通常为多层包封结构，文中以一台双层包封的电抗器为例，对其在不同谐波激励下的振动及噪声特性开展了研究，结合磁场力仿真和模态试验分析，明确了内外层包封之间的振动响应的关系，及整体声场的辐射特性。研究结果表明，空心电抗器在不同谐波电流激励下的振动分布受其模态特性主导，内外层包封的振动形态均呈现明显的波峰波谷分布，且与临近固有频率对应的模态振型相似；内外层包封在同一电流激励下的振动幅值和相位相近，具有一致的振动特性；电抗器整体在水平面的噪声辐射呈瓣状分布，具有明显的方向性。

Abstract

Dry-type air-core reactor

which is widely used in HVDC converter stations

bears the harmonic current action of abundant frequency content

producing severe vibration and noise pollution problems. Dry-type air-core reactor is usually a multilayer package structure

in this paper

a double-layer air-core reactor is used as an example to study its vibrational and noise characteristics under different harmonic excitations. Combining magnetic force simulation and modal analysis

the relationship of vibration response between the inner and outer layer of the air-core reactor

and the radiation characteristics of the overall are clarified. The results of this study show that the vibration distribution of the air-core reactor under different harmonic current excitations is dominated by its modal characteristics. The vibration patterns of the inner and outer layer show obvious peak and trough distribution

and are similar to the mode shapes corresponding to the adjacent natural frequencies. The vibration amplitude and phase of the inner and outer layers under the same current excitation are similar

and have consistent vibration distribution; The noise radiation of the air-core reactor as a whole in the horizontal plane is distributed in a lobe-like manner

which has obvious directionality.

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references

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