Measurement Analysis and Improvement of Vibroacoustic Characteristics of Amorphous Alloy Transformer

Zhenguo Liu, Ling Zhang, Biao Wu, Ming Jin, Degui Yao, Dianhai Zhang and Dezhi Chen
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Zhenguo Liu: Electric Power Research Institute of Xinjiang Electric Power Co., Ltd., Urumqi 830011, China
Ling Zhang: Electric Power Research Institute of Xinjiang Electric Power Co., Ltd., Urumqi 830011, China
Biao Wu: Electric Power Research Institute of Xinjiang Electric Power Co., Ltd., Urumqi 830011, China
Ming Jin: Electric Power Research Institute of Xinjiang Electric Power Co., Ltd., Urumqi 830011, China
Degui Yao: State Grid Henan Electric Power Research Institute, Zhengzhou 450052, China
Dianhai Zhang: School of Electrical Engineering, Shenyang University of Technology, Shenyang 110870, China
Dezhi Chen: School of Electrical Engineering, Shenyang University of Technology, Shenyang 110870, China

Energies, 2022, vol. 15, issue 3, 1-15

Abstract: The amorphous alloy transformer has a smaller coercive force and lower specific iron loss. It precedes the conventional silicon steel sheet transformer from the perspective of energy conservation. However, amorphous alloy material has a more significant magnetostriction coefficient, resulting in stronger vibration and acoustic noise. This paper investigates the measurement, analysis, and improvement of vibroacoustic characteristics of one three-phase, four-frame amorphous alloy distribution transformer to reduce environment noise pollution. This study adopts a coupling analysis method of magnetic–force–acoustic multi-physical fields to analyze the vibroacoustic characteristics. It then introduces a novel combination method of magnetic field analysis and an electric circuit to improve the efficiency of magnetic field analysis. This new combination method can greatly reduce the solution time of multiple physical fields through comparison with the traditional field-circuit coupling method. Different from other studies, this paper studies the acoustic and vibration characteristics of an amorphous alloy transformer under both no-load and load conditions. It is found that the load vibration noise of an amorphous transformer is more severe than that of a traditional silicon steel transformer. Accordingly, the study measures the vibroacoustic characteristic with different excitations and load levels under different working conditions to verify the numerical analysis method. Furthermore, according to the analysis results, this paper suggests a few vibration and noise control strategies. In conclusion, the paper deduces an essential basis for exploring strategies of vibration reduction and noise control for amorphous alloy distribution transformers.

Keywords: amorphous alloy distribution transformer; measurement; multi-physical field coupling; vibroacoustic characteristic; vibration and noise control (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
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