Analysis and Design of Spoke-type Ferrite Permanent Magnet Motor with Rotor Overhang

2018 ◽  
Author(s):  
Jung-Moo Seo ◽  
Ah-Reum Ro
Keyword(s):  
Permanent Magnet ◽  
Permanent Magnet Motor ◽  
Analysis And Design

scholarly journals Analysis and design of electromagnetic vibration and noise reduction method of permanent magnet motor

2021 ◽  
pp. 146134842110384
Author(s):  
Kai Hu ◽  
Guangming Zhang ◽  
Wenyi Zhang
Keyword(s):  
Permanent Magnet ◽  
Sound Pressure ◽  
Permanent Magnet Motor ◽  
Vibration Acceleration ◽  
Analysis And Design ◽  
Noise Optimization ◽  
Electromagnetic Vibration ◽  
Offset Distance ◽  
Average Acceleration ◽  
Measuring Experiment

Vibration and noise parameters have a significant influence on the performance of permanent magnet motor (PMM). A new method of reducing vibration and noise of PMM was proposed in this study by optimizing the stator teeth profile. The optimal offset distance was determined by finite element method, and the results indicate that the vibration and noise amplitude become larger when the frequency is an even multiple of the fundamental frequency. The maximum and average vibration acceleration of the optimized PMM is reduced by 22.27% and 11.11%, respectively, and the total sound pressure level (SPL) is decreased by 3.67%. Finally, the correctness of the theoretical parameters was verified by the vibration and noise measuring experiment. The experimental data suggest that the average acceleration error is 7.07%, and the average SPL error is 2.28%. The research methods and conclusions of this study may be extended to the vibration and noise optimization of other PMM.

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