Researchers Study Electromagnetic, Vibration, and Noise Performance of Transformers

Researchers from the Electric Power Research Institute conducted a study on the electromagnetic, vibration, and noise performance of transformers under different tensile and compressive stresses. The study aimed to investigate the magnetic properties of silicon steel sheets, magnetostrictive characteristics, and the influence of stresses on transformer performance. The researchers used COMSOL finite element software to simulate and analyze the electromagnetic performance and vibration noise of a 3 kVA transformer. The study concluded that an experimental platform for transformer vibration and noise without compressive stress can be built, providing a new perspective for the electromagnetic-vibration and noise analysis of transformers.

Key Takeaways:

• The researchers studied the electromagnetic, vibration, and noise performance of transformers under different tensile and compressive stresses.
• The study focused on the magnetic properties of silicon steel sheets, including the B-H curve, B-P curve, and permeability curve.
• The magnetostrictive characteristics of silicon steel sheets were tested and analyzed, and the butterfly curve and magnetostrictive single-valued curve were presented.
• The researchers used COMSOL finite element software to simulate and analyze the electromagnetic performance and vibration noise of a 3 kVA transformer.
• The study concluded that building an experimental platform for transformer vibration and noise without compressive stress can provide a new perspective for electromagnetic-vibration and noise analysis.
• The researchers targeted business applications of the study, aiming to improve transformer performance and reliability.
• Zhongxiang Li from the Electric Power Research Institute of Guandong Power Grid Co. Ltd. was involved in the study.
• Additional authors included Linglong Cai, Zhiqin Ma, Xianghui Chang, Yihua Qian, Kunyu Song, and Quansheng Zhao.

Statistics:

• 3 kVA: The capacity of the transformer used in the study.
• 1559-1603 (AIP Advances): The issue and page number of the journal article.
• 2025: The year in which the study was conducted and the article was published.
• 15 (9):095326-095326-11: The article ID and page numbers.
• 10.1063/5.0283602: The DOI for the journal article.
• 95-96: The number of pages in the journal article.

Sources:

• Study on electromagnetic-force characteristics of silicon steel sheet and vibration noise of transformer under different tensile and compressive stresses. AIP Advances, 2025,15(9):095326-095326-11.
• AIP Publishing LLC. .
• Electric Power Research Institute of Guandong Power Grid Co. Ltd., Guangzhou 510080, People's Republic of China.