Optimal Design of Vibration and Noise for Medium-High Frequency Transformer Core Based on Genetic Algorithm

IF 1.6 4区 工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC
Yongjian Li, Zitong Yang, Peng Guo
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Abstract

Transformers’ vibration and noise problems are critical to environmental comfort and reliability of equipment. To reduce the vibration and noise of transformers, the vibration and noise of medium and medium-high transformer cores under Maxwell force and magnetostriction were analyzed. A three-dimensional magneto-mechanical-acoustic coupled finite element model was established under sinusoidal and rectangular wave excitation. The deformation, vibration acceleration, and sound pressure distribution were analyzed under the Maxwell force and the magnetostrictive force of medium and medium-high transformers. A vibration noise optimization design architecture for medium and medium-high frequency transformers has been proposed. A transformer core structure with low noise vibration is designed based on the proposed optimization design architecture. The experimental results show that under the sinusoidal excitation, the vibration acceleration in the lamination direction decreases the most, from 18.748 m/s2 before optimization to 4.89 m/s2 and under rectangular wave excitation, it decreases from 51.08 m/s2 before optimization to 13.182 m/s2. The proposed method provides a reference for the optimization design of low noise vibration transformers.

Abstract Image

基于遗传算法的中高频变压器铁芯振动与噪声优化设计
变压器的振动和噪声问题对环境的舒适性和设备的可靠性至关重要。为了降低变压器的振动和噪声,研究人员分析了中型和中大型变压器铁芯在麦克斯韦力和磁致伸缩作用下的振动和噪声。建立了正弦波和矩形波激励下的三维磁-机-声耦合有限元模型。分析了中型和中大型变压器在麦克斯韦力和磁致伸缩力作用下的变形、振动加速度和声压分布。提出了中频和中高频变压器的振动噪声优化设计结构。根据提出的优化设计架构,设计了一种低振动噪声的变压器铁芯结构。实验结果表明,在正弦波激励下,层叠方向的振动加速度下降幅度最大,从优化前的 18.748 m/s2 降至 4.89 m/s2;在矩形波激励下,层叠方向的振动加速度从优化前的 51.08 m/s2 降至 13.182 m/s2。所提出的方法为低噪音振动变压器的优化设计提供了参考。
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来源期刊
Journal of Electrical Engineering & Technology
Journal of Electrical Engineering & Technology ENGINEERING, ELECTRICAL & ELECTRONIC-
CiteScore
4.00
自引率
15.80%
发文量
321
审稿时长
3.8 months
期刊介绍: ournal of Electrical Engineering and Technology (JEET), which is the official publication of the Korean Institute of Electrical Engineers (KIEE) being published bimonthly, released the first issue in March 2006.The journal is open to submission from scholars and experts in the wide areas of electrical engineering technologies. The scope of the journal includes all issues in the field of Electrical Engineering and Technology. Included are techniques for electrical power engineering, electrical machinery and energy conversion systems, electrophysics and applications, information and controls.
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