Mechanism of Eddy Current-induced Electromagnetic Force and Vibration Noise of Large-Capacity Transformer Oil Tanks

Huina Yang; Zhenyu Ji; Jun Wen; Haoxi Cong; Qingmin Li

doi:10.17775/CSEEJPES.2023.01330

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Mechanism of Eddy Current-induced Electromagnetic Force and Vibration Noise of Large-Capacity Transformer Oil Tanks

Regular Papers | 更新时间：2026-10-16

- Mechanism of Eddy Current-induced Electromagnetic Force and Vibration Noise of Large-Capacity Transformer Oil Tanks
- CSEE Journal of Power and Energy Systems Vol. 11, Issue 5, Pages: 2487-2495(2025)
- 作者机构：
  
  1. State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University,Beijing,China
  2. Zhangjiakou Power Supply Company, State Grid Jibei Electric Power Co., Ltd.,Zhangjiakou,China
- 作者简介：
- 基金信息：
- DOI：10.17775/CSEEJPES.2023.01330
  CLC：
- Published：01 September 2025
- 稿件说明：
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Huina Yang, Zhenyu Ji, Jun Wen, et al. Mechanism of Eddy Current-induced Electromagnetic Force and Vibration Noise of Large-Capacity Transformer Oil Tanks[J]. CSEE Journal of Power and Energy Systems, 2025, 11(5): 2487-2495.
DOI：

Huina Yang, Zhenyu Ji, Jun Wen, et al. Mechanism of Eddy Current-induced Electromagnetic Force and Vibration Noise of Large-Capacity Transformer Oil Tanks[J]. CSEE Journal of Power and Energy Systems, 2025, 11(5): 2487-2495. DOI： 10.17775/CSEEJPES.2023.01330.

摘要

Abstract

Heavy eddy currents exist in oil tanks during the normal operation of high-voltage and large-capacity transformers. Therefore

considerable vibration and noise are produced. Electromagnetic interference is studied in detail. The calculation of electromagnetic force in oil tanks due to the eddy current and related vibration noise is studied. A 334-MVA single-phase oil-immersed transformer is considered

and the leakage magnetic field

eddy current

and the electromagnetic force of the oil tank are calculated using the finite element method. The distribution characteristics of electromagnetic force are analyzed. The corresponding three-dimensional finite element model of vibration is established based on the stiffness characteristics of the transformer. The frequency characteristics of oil tank vibration caused by the electromagnetic force are analyzed using harmonic response analysis. A simulation model of noise caused by the vibration of oil tank is established. The fundamental frequency noise and high-frequency noise are calculated. The spectral characteristics of noise are obtained. The influence of load change on the electromagnetic force

vibration

and noise caused by the oil tank is investigated. The mathematical relationship between vibration noise and load is analyzed. The above study can provide reference and design basis for the safety design and noise prediction of large-capacity power transformers.

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