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2022-11-30
Investigation on Vibration of Amorphous Alloy Transformer Core
By
Daosheng Liu,

    Dr. Daosheng Liu

    Jiangxi University of Science and Technology

    China

    Homepage

Peng Li,

    Dr. Peng Li

    Jiangxi University of Science and Technology

    China

    Homepage

Zeshuai Li

    Dr. Zeshuai Li

    Jiangxi University of Science and Technology

    China

    Homepage

Progress In Electromagnetics Research M, Vol. 114, 191-203, 2022
doi:10.2528/PIERM22082502 | Google Scholar

Abstract
Amorphous alloy transformers (AMDT) have become the mainstream of energy-saving and environmentally friendly distribution transformers, but the problem of environmental pollution caused by their noise has become more prominent. The high magnetostriction of amorphous alloy strip and its sensitivity to stress are the main reasons for the vibration of AMDT core. Accurate calculation of the overall core vibration of transformers is the key issues in transformer noise research. This paper studies the vibration of amorphous alloy transformers under operating conditions, and establishes a three-dimensional magnetic-mechanical coupling model considering the magnetostrictive effect of the power transformer core, and the magnetic field distribution and core vibration displacement of the dry-type transformer under no-load conditions are calculated by finite element method. Combined with experiments, the mechanism of vibration generation of amorphous alloy transformer core is studied, and an iron core vibration prediction calculation based on electromagnetic field coupling analysis is proposed. The research results not only have important academic value for exploring the vibration mechanism and noise suppression mechanism of amorphous alloy transformers, but also have important significance for ensuring their efficient operation.
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Citation
Daosheng Liu, Peng Li, and Zeshuai Li, "Investigation on Vibration of Amorphous Alloy Transformer Core," Progress In Electromagnetics Research M, Vol. 114, 191-203, 2022.
doi:10.2528/PIERM22082502
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