Analysis of Vibration and Noise of Induction Motor Equipped with Concentric Single-Double-Layer Star-Delta Winding*

中国电气工程学报（英文） ›› 2019, Vol. 5 ›› Issue (1): 36-46.

出版日期:2019-01-20 发布日期:2019-01-20
通讯作者: Supported by the National Natural Science Foundation of China under Grant 51677051.

Analysis of Vibration and Noise of Induction Motor Equipped with Concentric Single-Double-Layer Star-Delta Winding^*

Zechen Li¹, Chong Di², Xiaohua Bao^{1, *}

1. Hefei University of Technology, School of Electrical Engineering and Automation, Hefei 230009, China;
2. Department of Electrical Engineering, LUT School of Energy Systems, Lappeenranta University of Technology, Lappeenranta 53851, Finland

Online:2019-01-20 Published:2019-01-20
About author:Zechen Li was born in Anhui, China, in 1993. She received a B.S. degree from North China University of Technology in 2015. She is currently working toward an M.S. degree in electrical engineering from the Hefei University of Technology, Hefei, China.
Her current research area is design and analysis of induction machines.
Chong Di was born in Wuxi, China, in 1991. He received a B.S degree and M.S degrees both in electrical engineering from the Hefei University of Technology, Hefei, China, in 2014 and 2017, respectively. He is currently pursuing Ph.D. with the Department of Electrical Engineering, Lappeenranta University of Technology, Lappeenranta, Finland.
His current research interests include high-speed electrical machines.
Xiaohua Bao was born in Hubei, China, in 1972. He received Ph.D. in electrical engineering from Hefei University of Technology, Hefei, China, in 2007. He is currently a professor of electrical engineering with the School of Electrical Engineering and Automation, Hefei University of Technology, Hefei, China.
His main interests include the theory and technology of motor design, the theoretical analysis and calculation of the electromagnetic field of a motor, reliability technology of large motors and high-speed motors.
Supported by:
sukz@ustc.edu

摘要/Abstract

Abstract: Compared with changing the structure of a motor that has been manufactured, changing the type of stator winding is an economical and time-saving method to reduce the vibration and noise. Thus, a concentric single-double-layer star-delta (CSDLSD) winding for an induction motor is described in this paper with the aim of reducing the noise of the motor. By planning the turns relationship between the two parts of the winding, the harmonic component of the air-gap magnetic field can be decreased. Besides this, through adjusting the turns ratio in each slot of concentric winding per phase respectively, the waveform of the air-gap magnetic field becomes closer to a sinusoidal type. Three motors equipped with the CSDLSD winding and another two types of stator winding were analyzed. The theoretical analysis and the two-dimensional finite element method (2D-FEM) were combined to study the relationship between the harmonics of the air-gap magnetic field and the stator winding. Finally, a 2D fast Fourier transformation (2D-FFT) method was used to obtain the time-frequency spectrum of the air-gap flux density and electromagnetic excitation force, and compared with a natural vibration wave. The noise distribution was obtained using the harmonic response. The results of the theoretical analysis, 2D-FEM, 2D-FFT, and harmonic response corroborate each other such that the motor applying CSDLSD winding could reduce both the vibration and noise.

Key words: Induction motor, concentric single-double-layer star-delta winding, 2D-FFT, vibration

. [J]. 中国电气工程学报（英文）, 2019, 5(1): 36-46.

Zechen Li, Chong Di, Xiaohua Bao. Analysis of Vibration and Noise of Induction Motor Equipped with Concentric Single-Double-Layer Star-Delta Winding^*[J]. Chinese Journal of Electrical Engineering, 2019, 5(1): 36-46.

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Analysis of Vibration and Noise of Induction Motor Equipped with Concentric Single-Double-Layer Star-Delta Winding^*

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