An Analysis of the Impact of the Coil on the Natural Frequency of the Permanent Magnet Synchronous Motor Stator Core

2012 ◽  
Vol 7 (21) ◽  
pp. 96-103 ◽  
Author(s):  
Li ◽  
XiaohuaHuang ◽  
Surong
Keyword(s):  
Permanent Magnet ◽  
Natural Frequency ◽  
Permanent Magnet Synchronous Motor ◽  
Synchronous Motor ◽  
Stator Core ◽  
The Impact

The impact of the self-sealing coolant channel across the stator core on the electromagnetic performance of the permanent magnet motor

2022 ◽  
pp. 1-23
Author(s):  
Tian Xia ◽  
Falong Zhu ◽  
Peng Kang ◽  
Buyun Sheng ◽  
Yiming Qiu
Keyword(s):  
Permanent Magnet ◽  
Temperature Rise ◽  
Heat Dissipation ◽  
Design Method ◽  
Permanent Magnet Synchronous Motor ◽  
Core Loss ◽  
Synchronous Motor ◽  
Permanent Magnet Motor ◽  
Stator Core ◽  
The Impact

For avoiding the damage of the insulation and permanent magnet, the temperature rise of the PMSM (permanent magnet synchronous motor) should be controlled strictly, it is usually one of the main objectives during improving the output power and torque density beyond the state-of-the-art in motor design. In this research, the coolant channel will be placed within the yoke of the stator core to enhance the heat transfer between the stator core and the coolant. Hydrophobic coating is applied to replace the metal tube for increasing the utilization of the cross area of the coolant channel. The impact of the coolant channel on the performance of the permanent magnet motor is analyzed. A general design method of the coolant channel is presented. The result shows that the change of the stator core loss is within about 10% as the coolant channel is moved away from the slot along the radial direction while the back electromotive force of the motor could keep constant through appropriate design. The impacts of the coolant channels on the magnet performance and the heat dissipation performance could be divided completely with the design method. The method can be applied on various PMSM including SPM (surface-mounted permanent magnet motor) and IPMSM (interior permanent magnet synchronous motor). Sufficient coolant flow could be provide to help conduct the temperature rise of the motor.

scholarly journals Analysis of the Partial Demagnetization Process of Magnets in a Line Start Permanent Magnet Synchronous Motor

Energies ◽  
2020 ◽  
Vol 13 (21) ◽  
pp. 5562
Author(s):  
Mariusz Baranski ◽  
Wojciech Szelag ◽  
Wieslaw Lyskawinski
Keyword(s):  
Permanent Magnet ◽  
Permanent Magnet Synchronous Motor ◽  
Experimental Studies ◽  
Experimental Tests ◽  
Synchronous Motor ◽  
Effect Of Temperature ◽  
Start Up ◽  
Calculation Results ◽  
Thermal Phenomena ◽  
The Impact

The paper justifies the validity of analyzing the impact of temperature and the process of partial demagnetization of magnets on the operating parameters of machines. To analyze this impact, a field model of coupled electromagnetic and thermal phenomena in a permanent magnet synchronous motor was proposed. The non-linearity of the magnetic circuit, the effect of temperature on the magnetic, electrical and thermal properties of the materials as well as the developed method of modeling the process of partial demagnetization of the magnet were taken into account. Based on this model, an algorithm and software were developed to analyze the effect of temperature and the process of partial demagnetization of magnets on the work of the line start permanent magnet synchronous motor (LSPMSM). The elaborated software was used to study the effect of temperature during the motor starting phase on the magnetization state of the magnets after the start-up process. The calculation results were compared to the results of experimental studies. The experimental tests were carried out on a specially constructed test stand. The results of the research on the process of partial demagnetization of the magnets are presented and the conclusions resulting therefrom formulated.

scholarly journals Study on the Characteristics of Electromagnetic Noise of Axial Flux Permanent Magnet Synchronous Motor

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Wei Wang ◽  
Hang Wang ◽  
Hamid Reza Karimi
Keyword(s):  
Permanent Magnet ◽  
Natural Frequency ◽  
Electromagnetic Force ◽  
Permanent Magnet Synchronous Motor ◽  
Synchronous Motor ◽  
Force Distribution ◽  
Noise Sources ◽  
Axial Flux ◽  
Electromagnetic Noise ◽  
Theoretical Support

The normal electromagnetic force distribution in stator system of axial flux permanent magnet synchronous motor (PMSM) has been thoroughly analyzed in this paper. The main composition of force wave causing vibration and noise has been proposed, and at the same time a calculation method of stator natural frequency of axial flux PMSM has been raised. Through this method electromagnetic force wave, natural frequency, vibration response, and electromagnetic noise of a 15 kW axial flux PMSM with 22 poles and 24 slots have been calculated; calculations and measured values are consistent by comparison. The noise sources of axial flux PMSM have been found in this paper, which provides the theoretical support for the suppression of electromagnetic noise of axial flux PMSM.

Core Loss Reduction of an Interior Permanent-Magnet Synchronous Motor Using Amorphous Stator Core

2016 ◽  
Vol 52 (3) ◽  
pp. 2261-2268 ◽  
Author(s):  
Shotaro Okamoto ◽  
Nicolas Denis ◽  
Yoshiyuki Kato ◽  
Masaharu Ieki ◽  
Keisuke Fujisaki
Keyword(s):  
Permanent Magnet ◽  
Permanent Magnet Synchronous Motor ◽  
Core Loss ◽  
Synchronous Motor ◽  
Loss Reduction ◽  
Stator Core ◽  
Interior Permanent Magnet

Modal Analysis of Permanent Magnet Synchronous Motor of Electric Vehicles

2013 ◽  
Vol 748 ◽  
pp. 735-738
Author(s):  
Xiao Hua Li ◽  
Su Rong Huang ◽  
Ying Dai
Keyword(s):  
Modal Analysis ◽  
Permanent Magnet ◽  
Natural Frequency ◽  
Analytical Method ◽  
Permanent Magnet Synchronous Motor ◽  
Synchronous Motor ◽  
Design Stage ◽  
Analysis Method ◽  
The Finite Element Method ◽  
Motor Design

First, using the analytical method to estimate the natural frequency of a permanent magnet synchronous motor core, the focus of the winding and the winding end of the natural frequency of the motor, respectively, the finite element method and experimental modal analysis method verify the correctness of the analytical method, this article resolve modal analysis method in the motor design stage can be used to quickly estimate the natural frequency of the motor.

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